US3748373A - Electrical contact device - Google Patents

Electrical contact device Download PDF

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US3748373A
US3748373A US00244122A US3748373DA US3748373A US 3748373 A US3748373 A US 3748373A US 00244122 A US00244122 A US 00244122A US 3748373D A US3748373D A US 3748373DA US 3748373 A US3748373 A US 3748373A
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central conductor
cord
contact device
conductor
threads
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US00244122A
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R Remy
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/10—Contact cables, i.e. having conductors which may be brought into contact by distortion of the cable

Definitions

  • a linear electrical contact device comprising a central conductor, a tubular braid of metallic threads, and a tubular braid of interwoven insulating threads separating the central conductor and the tubular braid of metallic threads.
  • the tubular braid of intermoven insulating threads forms a cord helically wound around the central conductor and is thermo-welded to the central conductor so as to be permanently secured thereto.
  • the contact device can be used in combination with a vehicle window slide to activate when an object is caught in the window as the window is rolled up.
  • F'IGA- ELECTRICAL CONTACT DEVICE This invention relates to a linear electrical contact device of the type comprising two conductors arranged generally parallel and separated by insulating elements, which allow the conductors to be brought into contact by pressure applied at any position along the length of the device for, for example, closing an electrical circuit when the pressure is exerted and opening the circuit as soon as the pressure is released.
  • FIG. 1 illustrates a partial longitudinal section of a portion of a cable forming an electrical contact device in accordance with the invention
  • FIG. 2 illustrates a cross-section of the same cable taken along line AA" of FIG. 1;
  • FIG. 3 illustrates a cross-section taken along line 8-8 of FIG. 1; and i FIG. 4 illustrates a cross-section of the window-slide of a vehicle door adapted for insertion of a linear electrical contact device in at least one free edge thereof.
  • FIGS. 1 to 3 there is shown a coaxial cable capable of detecting the pressure applied thereto and to ensure the closure or opening of an electrical circuit depending on whether or not the cable is subjected to a radial pressure.
  • the cable or linear electrical contact device comprises a central conductor 1 spaced by an helically wound insulator 2 from a conductive tubular braid 3 impregnated with an outside elastomeric composition 4.
  • the helicoidal insulating spacer 2 is novel in that:
  • a comprises a braid, lace or cord formed of small threads, preferably made of superpolyamide, interwoven tubularly so that the flattening thereof in the form on a band facilitates, by its own elasticity, the contact under the effect of a pressure as well as the separation when the pressure is removed from the coaxial conductors l and 3, and also the winding of such braid, lace or cord in an helicoidal form.
  • the central conductor 1 which is made of stainless steel including a nickel chrome composition
  • the joule effect resulting from the passage of an electrical current under low voltage which is of sufficient amplitude so as to cause a suitable heating of the central conductor 1 will cause the superpolyamide braid 2 contacting the central conductor to be brought to its melting point. This will very simply and economically cause the permanent adhesion of the superpolyamide braid on the central conductor 1, thus preventing all risks of subsequent sliding of the braid on the central conductor, even under low radius flexures.
  • the peripheral tubular conductive braid 3 is advantageously impregnated with an elastomeric composition 4 which is deposited thereon in any convenient way such as, for example by plunging it into a suitable bath, by conductive rollers, by pulverization using a pistol etc
  • the elastomeric composition may be of the type commercially known as RHODORSYL RTV or RF4 sold by Rhone-Poulenc, which may be vulcanized at room temperature, or be made of a neoprene adhesive material having a resistance to crystallization, so as to maintain a maximum flexibility, and, for example, have the following composition in which the proportionsare given in weight:
  • composition will be used in solution, in an appropriate solvent system, at the rate of 20 to 40 per cent of dry extract, providing respectively solutionstfor use either with a pistol or in a bath.
  • animprovement of the retification of the film may be obtained by adding 2 to 10 percent of an isocyanate of the type known commercially as Desmodur Ror F of BAYER, but to adisadvantage in the stability in pot. This isocyanate is added immediately before use.
  • the tubular assembly so formed becomes much more homogeneous and much more appropriate for supporting elastic deformations, even repeated, and at the same time for returning to its initial shape after removal of the applied pressure.
  • the elimination of the risks of sliding of .the helicoidal winding 2 by thermal welding of such helicoidal winding on the central conductor 1 permits to realize low radius flexures of the linear contact device without incurring accidental contacts between the two coaxial conductors l and 3.
  • the impregnation of the elastomeric composition 4 is also novel and advantageous in that it renders the whole assembly waterproof, thus also reducing the risk of deterioration of the contacts betweenthe two coaxial conductors l and 3.
  • this facilitates the sliding of the linear contact device into an additional protective sheath, or in the tubular'housing 5, of at least one edge of an elastic profile 6 used as a vehicle window guide slide, such as shown in FIG. 4.
  • Such an arrangement may be used to stop the operation of the electrical device actuating the window when an obstacle such as a child head is caught between the window and the frame of the door. It is to be understood that other means of fastening the linear contact device are also possible.
  • a linear electrical contact device comprising a central conductor, a tubular conductor surrounding said central conductor and consisting of a braid of metallic threads, and a tubular braid of interwoven insulating threads separating said conductors and forming a cord helically wound on said central conductor, said cord being secured to at least one conductor so as to prevent sliding thereof with respect to said one conductor, said tubular braid of metallic threads being impregnated with a composition ensuring an homogeneous, waterproof and flexible contact device.

Abstract

A linear electrical contact device comprising a central conductor, a tubular braid of metallic threads, and a tubular braid of interwoven insulating threads separating the central conductor and the tubular braid of metallic threads. The tubular braid of intermoven insulating threads forms a cord helically wound around the central conductor and is thermo-welded to the central conductor so as to be permanently secured thereto. The contact device can be used in combination with a vehicle window slide to activate when an object is caught in the window as the window is rolled up.

Description

United States Patent 1 .Remy
111 3,748,373 [4 1 July 24,1973
1 1 ELECTRICAL CONTACT DEVICE [76] Inventor: Roger Remy, l7 & 35 DEstienne dOrves, Neuilly-Plaisance 93, France [22] Filed: Apr. 14, 1972 [21] Appl. No.: 244,122
[521' US. Cl... 174/115, 174/28, 174/29, I 200/6123, 200/85, 340/272 [51'] Int. Cl. H011) 7/22 5s Fie1d-otSearch.... 174/28, 29, 102 R, I 1 74/11311, 115;200/61.41,61.24,6l.23,85,
[56] References Cited UNITED STATES PATENTS 2,437,969 3/1948 Paul 200/86 R 2,416,979 3/1947 Burley.... 174/29 FOREIGN PATENTS OR APPLICATIONS 966,167 6/1965 Great Britain 200/86 R 1,193,029 5/1970 Great Britain ZOO/61.41 1,640,743 10/1970 Germany ZOO/61.41
Primary Examiner-Bemard A. Gilheany Assistant Examiner-A. T. Grimley Attorney-Raymond A. Robic I 5 7 ABSTRACT A linear electrical contact device comprising a central conductor, a tubular braid of metallic threads, and a tubular braid of interwoven insulating threads separating the central conductor and the tubular braid of metallic threads. The tubular braid of intermoven insulating threads forms a cord helically wound around the central conductor and is thermo-welded to the central conductor so as to be permanently secured thereto. The contact device can be used in combination with a vehicle window slide to activate when an object is caught in the window as the window is rolled up.
4 Claims, 4 Drawing Figures PATENIED JUL 2 41m 1. uf 11 1 .4 I) (1.1 Ju .Jfl. 3 4.4.
SUPER POLYAMIDE STAlNLESS STEEL FIG. 2
F'IG.1
FIG. 3
F'IGA- ELECTRICAL CONTACT DEVICE This invention relates to a linear electrical contact device of the type comprising two conductors arranged generally parallel and separated by insulating elements, which allow the conductors to be brought into contact by pressure applied at any position along the length of the device for, for example, closing an electrical circuit when the pressure is exerted and opening the circuit as soon as the pressure is released.
It is known that recent industrial developments of such linear electrical contact devices, in requiring both a certain amount of miniaturization and a large amount of flexibility so as to permit their general use for the security of electrically operated devices such as car windows, have revealed frequent hazards due to accidental closures of the circuit operated by such contact devices.
It is the object of the present invention to overcome the above drawbacks and, more particularly, to eliminate the risks of accidental contacts between the two coaxial conductors which are slightly spaced, on one hand, by using an helicoidal spacer element having a great elasticity and, on the other hand, by using an helicoidal spacer element which ispermanently secured to at least one of the conductors, so as to prevent any sliding thereof on such conductor, and, finally, by using a tubular braid of metallic threads which is impregnated with an elastomeric composition.
The novel characteristics of the invention as wells as others which are related thereto and the advantages of the present invention will be best understood by referring, by way of example, to the following description of a preferred embodiment of the invention and to the attached drawings in which:
FIG. 1 illustrates a partial longitudinal section of a portion of a cable forming an electrical contact device in accordance with the invention;
FIG. 2 illustrates a cross-section of the same cable taken along line AA" of FIG. 1;
FIG. 3 illustrates a cross-section taken along line 8-8 of FIG. 1; and i FIG. 4 illustrates a cross-section of the window-slide of a vehicle door adapted for insertion of a linear electrical contact device in at least one free edge thereof.
In FIGS. 1 to 3, there is shown a coaxial cable capable of detecting the pressure applied thereto and to ensure the closure or opening of an electrical circuit depending on whether or not the cable is subjected to a radial pressure. The cable or linear electrical contact device comprises a central conductor 1 spaced by an helically wound insulator 2 from a conductive tubular braid 3 impregnated with an outside elastomeric composition 4.
The helicoidal insulating spacer 2 is novel in that:
a. On one hand, it comprises a braid, lace or cord formed of small threads, preferably made of superpolyamide, interwoven tubularly so that the flattening thereof in the form on a band facilitates, by its own elasticity, the contact under the effect of a pressure as well as the separation when the pressure is removed from the coaxial conductors l and 3, and also the winding of such braid, lace or cord in an helicoidal form.
b. On the other hand, due to the non-negligeable electrical resistance of the central conductor 1, which is made of stainless steel including a nickel chrome composition, the joule effect resulting from the passage of an electrical current under low voltage which is of sufficient amplitude so as to cause a suitable heating of the central conductor 1 will cause the superpolyamide braid 2 contacting the central conductor to be brought to its melting point. This will very simply and economically cause the permanent adhesion of the superpolyamide braid on the central conductor 1, thus preventing all risks of subsequent sliding of the braid on the central conductor, even under low radius flexures.
In addition, the peripheral tubular conductive braid 3 is advantageously impregnated with an elastomeric composition 4 which is deposited thereon in any convenient way such as, for example by plunging it into a suitable bath, by conductive rollers, by pulverization using a pistol etc The elastomeric composition may be of the type commercially known as RHODORSYL RTV or RF4 sold by Rhone-Poulenc, which may be vulcanized at room temperature, or be made of a neoprene adhesive material having a resistance to crystallization, so as to maintain a maximum flexibility, and, for example, have the following composition in which the proportionsare given in weight:
The above composition will be used in solution, in an appropriate solvent system, at the rate of 20 to 40 per cent of dry extract, providing respectively solutionstfor use either with a pistol or in a bath.
It may also be mentioned that animprovement of the retification of the film may be obtained by adding 2 to 10 percent of an isocyanate of the type known commercially as Desmodur Ror F of BAYER, but to adisadvantage in the stability in pot. This isocyanate is added immediately before use.
Due to the impregnation of the braid of metallic threads with an elastomeric composition 4, the tubular assembly so formed becomes much more homogeneous and much more appropriate for supporting elastic deformations, even repeated, and at the same time for returning to its initial shape after removal of the applied pressure. The elimination of the risks of sliding of .the helicoidal winding 2 by thermal welding of such helicoidal winding on the central conductor 1 permits to realize low radius flexures of the linear contact device without incurring accidental contacts between the two coaxial conductors l and 3.
It may also be mentioned that the impregnation of the elastomeric composition 4 is also novel and advantageous in that it renders the whole assembly waterproof, thus also reducing the risk of deterioration of the contacts betweenthe two coaxial conductors l and 3. In addition, this facilitates the sliding of the linear contact device into an additional protective sheath, or in the tubular'housing 5, of at least one edge of an elastic profile 6 used as a vehicle window guide slide, such as shown in FIG. 4. Such an arrangement may be used to stop the operation of the electrical device actuating the window when an obstacle such as a child head is caught between the window and the frame of the door. It is to be understood that other means of fastening the linear contact device are also possible.
It is also be understood that the invention is not to be limited to the embodiment disclosed above, by way of example, but that various modifications may be made to such embodiment using equivalent devices.
As an example of equivalent devices, it may be mentioned the substitution of the joule effect to weld the hellical member 2 to the central conductor by a high frequency heating process wherein the linear contact device is passed through induction windings. This would facilitate the continuous fabrication of the device and obviate to use of electrical feeding contacts to permit the thermal welding of the insulating braid 2 onto one of the conductors. In addition, the elastomeric composition 4 could be replaced by a vinyl plastic which would be jelled by such high frequency heating or in an oven.
The embodiment of the invention in which an exclusive property or privilege is claimed are defined as follows:
l. A linear electrical contact device comprising a central conductor, a tubular conductor surrounding said central conductor and consisting of a braid of metallic threads, and a tubular braid of interwoven insulating threads separating said conductors and forming a cord helically wound on said central conductor, said cord being secured to at least one conductor so as to prevent sliding thereof with respect to said one conductor, said tubular braid of metallic threads being impregnated with a composition ensuring an homogeneous, waterproof and flexible contact device.
2. A contact device as defined in claim 1, wherein said central conductor is made of stainless steel having a certain resistance and wherein said cord is made of interwoven superpolyamide threads, said cord being secured to said central conductor by passing current through the central conductor which will cause thermal welding of the cord onto the central conductor.
3. The combination of an extruded profile used in a vehicle window slide and having an edge with a tubular housing, with a linear electrical contact device inserted in said tubular housing, said linear electrical contact device comprising a central conductor, a tubular conductor surrounding said central conductor and consisting of a braid of metallic threads, and a tubular braid of interwoven insulating threads separating said conductors and forming a cord helically wound on said central conductor, said cord being secured to at least one conductor so as to prevent sliding thereof with respect to said one conductor, said tubular braid of metallic threads being impregnated with a composition ensuring an homogeneous, waterproof and flexible contact device.
4. A contact device as defined in claim 3, wherein said central conductor is made of stainless steel having a certain resistance and wherein said cord is made of interwoven superpolyamide threads, said cord being secured to said central conductor by passing current through the central conductor which will cause thermal welding of the cord onto the central conductor.
- UNITED sT TEs PATENT OFFICE CERTIFICATE OF CORRECTION 3,748,373 July 24, 1973 7 Dated Ptent No.
Ifiyehtofls) [Q Roger Remy It is certified that error appears in the above-identified paterrt end that saidLetters Patent are hereby corrected as "shownbelow:
On the; cover sheet insert '[30] Foreign A pli ation: Priority Data Mar. 17, 1972 Frariee Sighe d'and sealed this 27th day of August 1974.
(SEAL) A;ttest:
gccoY M. GIBS'ONI, JR. 0. MARSHALL DANN 1' Af t testing Officer Commissioner of Patents ORM PC4650 (10-59) 'USCOMM-DC 60376-P69 if US. GOVERNMENT {'RINTING OFFICE I969 (B -3654M.
UNITED STATES rATENT OFFICE CERTIFICATE ()F IORRECTEON 3,748,373 July 24, 1973 Patent No. Dated Inventor(s) Roger Remy It is certified that error appears the above-identified patent and that said Letters Patent are hereby corrected as shown below:
On the cover sheet insert [30] Foreign France Signed and sealed this 27th day of August 1974.
(SEAL) Attest:
MCCOY M. GIBSON, JR.
. C. MARSHALL DANN A'ttesting Officer Commissioner of Patents *ORM Po-wso (10-69) USCOMM-DC 60376-2 69 US. GOVERNMENT PRINTING OFFICE: 1959 0-366-334,

Claims (4)

1. A linear electrical contact device comprising a central conductor, a tubular conductor surrounding said central conductor and consisting of a braid of metallic threads, and a tubular braid of interwoven insulating threads separating said conductors and forming a cord helically wound on said central conductor, said cord being secured to at least one conductor so as to prevent sliding thereof with respect to said one conductor, said tubular braid of metallic threads being impregnated with a composition ensuring an homogeneous, waterproof and flexible contact device.
2. A contact device as defined in claim 1, wherein said central conductor is made of stainless steel having a certain resistance and wherein said cord is made of interwoven superpolyamide threads, said cord being secured to said central conductor by passing current through the central conductor which will cause thermal welding of the cord onto the central conductor.
3. The combination of an extruded profile used in a vehicle window slide and having an edge with a tubular housing, with a linear electrical contact device inserted in said tubular housing, said linear electrical contact device comprising a central conductor, a tubular conductor surrounding said central conductor and consisting of a braid of metallic threads, and a tubular braid of interwoven insulating threads separating said conductors and forming a cord helically wound on said central conductor, said cord being secured to at least one conductor so as to prevent sliding thereof with respect to said one conductor, said tubular braid of metallic threads being impregnated with a composition ensuring an homogeneous, waterproof and flexible contact device.
4. A contact device as defined in claim 3, wherein said central conductor is made of stainless steel having a certain resistance and wherein said cord is made of interwoven superpolyamide threads, said cord being secured to said central conductor by passing current through the central conductor which will cause thermal welding of the cord onto the central conductor.
US00244122A 1972-04-14 1972-04-14 Electrical contact device Expired - Lifetime US3748373A (en)

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4075616A (en) * 1975-11-12 1978-02-21 Rait Joseph M Detector for alarm system
FR2428779A1 (en) * 1978-06-14 1980-01-11 Kabel Metallwerke Ghh SPACING WINDING FOR COAXIAL TUBE PIPING
US4259990A (en) * 1979-06-20 1981-04-07 Kabel-und Metallwerke, Gutehoffnungshutte A.G. Spacer in concentric tube systems
US4742196A (en) * 1986-09-19 1988-05-03 Bicc Public Limited Company Elongate pressure-actuated electrical switch
US4762970A (en) * 1986-08-22 1988-08-09 Bicc Public Limited Company Elongate pressure actuated electrical switch
US5742002A (en) * 1995-07-20 1998-04-21 Andrew Corporation Air-dielectric coaxial cable with hollow spacer element
US6328126B2 (en) * 1991-07-09 2001-12-11 Automotive Technologies International, Inc. Crush sensing vehicle crash sensor
US6557889B2 (en) 1991-07-09 2003-05-06 Automotive Technologies International Inc. Crush velocity sensing vehicle crash sensor
US20030184310A1 (en) * 2002-03-29 2003-10-02 Lurtz Jerome R. Pressure, temperature and contact sensor
US20030184309A1 (en) * 2002-03-29 2003-10-02 Lurtz Jerome R. Sensor for measuring changes in ambient conditions
US7635043B2 (en) 1991-07-09 2009-12-22 Automotive Technologies International, Inc. Crash sensor arrangement for controlling deployment of an occupant restraint device
US9355755B2 (en) 2011-04-07 2016-05-31 3M Innovative Properties Company High speed transmission cable
US20160155535A1 (en) * 2014-11-27 2016-06-02 Hitachi Metals, Ltd. Coaxial cable and medical cable using the same
US9857246B2 (en) 2014-09-17 2018-01-02 Sensable Technologies, Llc Sensing system including a sensing membrane
US20180069386A1 (en) * 2016-09-07 2018-03-08 Ultra Electronics Limited Mechanical link
US10263174B2 (en) 2013-03-15 2019-04-16 Nano Composite Products, Inc. Composite material used as a strain gauge
US10260968B2 (en) 2013-03-15 2019-04-16 Nano Composite Products, Inc. Polymeric foam deformation gauge
US10405779B2 (en) 2015-01-07 2019-09-10 Nano Composite Products, Inc. Shoe-based analysis system
US10760392B2 (en) 2016-04-13 2020-09-01 Acceleware Ltd. Apparatus and methods for electromagnetic heating of hydrocarbon formations
US10839981B2 (en) 2011-04-07 2020-11-17 3M Innovative Properties Company High speed transmission cable
US11296434B2 (en) 2018-07-09 2022-04-05 Acceleware Ltd. Apparatus and methods for connecting sections of a coaxial line
US11410796B2 (en) 2017-12-21 2022-08-09 Acceleware Ltd. Apparatus and methods for enhancing a coaxial line

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416979A (en) * 1943-04-27 1947-03-04 Burley Joseph Cilley Electric cable
US2437969A (en) * 1946-01-24 1948-03-16 Elliott F Barlow Deformable switch
GB966167A (en) * 1963-04-11 1964-08-06 C H Johnson Machinery Ltd Improvements relating to de-watering the ground
GB1193029A (en) * 1967-11-29 1970-05-28 Kabel Metallwerke Ghh Electric Contact Cable
DE1640743A1 (en) * 1967-11-30 1970-10-22 Kabel Metallwerke Ghh Electrical contact cable

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416979A (en) * 1943-04-27 1947-03-04 Burley Joseph Cilley Electric cable
US2437969A (en) * 1946-01-24 1948-03-16 Elliott F Barlow Deformable switch
GB966167A (en) * 1963-04-11 1964-08-06 C H Johnson Machinery Ltd Improvements relating to de-watering the ground
GB1193029A (en) * 1967-11-29 1970-05-28 Kabel Metallwerke Ghh Electric Contact Cable
DE1640743A1 (en) * 1967-11-30 1970-10-22 Kabel Metallwerke Ghh Electrical contact cable

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4075616A (en) * 1975-11-12 1978-02-21 Rait Joseph M Detector for alarm system
FR2428779A1 (en) * 1978-06-14 1980-01-11 Kabel Metallwerke Ghh SPACING WINDING FOR COAXIAL TUBE PIPING
US4259990A (en) * 1979-06-20 1981-04-07 Kabel-und Metallwerke, Gutehoffnungshutte A.G. Spacer in concentric tube systems
US4762970A (en) * 1986-08-22 1988-08-09 Bicc Public Limited Company Elongate pressure actuated electrical switch
US4742196A (en) * 1986-09-19 1988-05-03 Bicc Public Limited Company Elongate pressure-actuated electrical switch
US6328126B2 (en) * 1991-07-09 2001-12-11 Automotive Technologies International, Inc. Crush sensing vehicle crash sensor
US7635043B2 (en) 1991-07-09 2009-12-22 Automotive Technologies International, Inc. Crash sensor arrangement for controlling deployment of an occupant restraint device
US6557889B2 (en) 1991-07-09 2003-05-06 Automotive Technologies International Inc. Crush velocity sensing vehicle crash sensor
US5742002A (en) * 1995-07-20 1998-04-21 Andrew Corporation Air-dielectric coaxial cable with hollow spacer element
WO2003085685A2 (en) * 2002-03-29 2003-10-16 Lurtz Jerome R A pressure, temperature and contact sensor
US20030184310A1 (en) * 2002-03-29 2003-10-02 Lurtz Jerome R. Pressure, temperature and contact sensor
WO2003085685A3 (en) * 2002-03-29 2004-03-11 Jerome R Lurtz A pressure, temperature and contact sensor
US6724195B2 (en) * 2002-03-29 2004-04-20 Jerome R. Lurtz Contact sensor
US20030184309A1 (en) * 2002-03-29 2003-10-02 Lurtz Jerome R. Sensor for measuring changes in ambient conditions
US10839981B2 (en) 2011-04-07 2020-11-17 3M Innovative Properties Company High speed transmission cable
US9799425B2 (en) 2011-04-07 2017-10-24 3M Innovative Properties Company High speed transmission cable
US9355755B2 (en) 2011-04-07 2016-05-31 3M Innovative Properties Company High speed transmission cable
US10726970B2 (en) 2011-04-07 2020-07-28 3M Innovative Properties Company High speed transmission cable
US10354778B2 (en) 2011-04-07 2019-07-16 3M Innovative Properties Company High speed transmission cable
US11874184B2 (en) 2013-03-15 2024-01-16 Nano Composite Products, Inc. Composite conductive foam
US11329212B2 (en) 2013-03-15 2022-05-10 Nano Composite Products, Inc. Composite conductive foam insole
US10658567B2 (en) 2013-03-15 2020-05-19 Nano Composite Products, Inc. Composite material used as a strain gauge
US10263174B2 (en) 2013-03-15 2019-04-16 Nano Composite Products, Inc. Composite material used as a strain gauge
US10260968B2 (en) 2013-03-15 2019-04-16 Nano Composite Products, Inc. Polymeric foam deformation gauge
US9857246B2 (en) 2014-09-17 2018-01-02 Sensable Technologies, Llc Sensing system including a sensing membrane
US9659683B2 (en) * 2014-11-27 2017-05-23 Hitachi Metals, Ltd. Coaxial cable and medical cable using the same
US20160155535A1 (en) * 2014-11-27 2016-06-02 Hitachi Metals, Ltd. Coaxial cable and medical cable using the same
US10405779B2 (en) 2015-01-07 2019-09-10 Nano Composite Products, Inc. Shoe-based analysis system
US11564594B2 (en) 2015-01-07 2023-01-31 Nano Composite Products, Inc. Shoe-based analysis system
US10760392B2 (en) 2016-04-13 2020-09-01 Acceleware Ltd. Apparatus and methods for electromagnetic heating of hydrocarbon formations
US11359473B2 (en) 2016-04-13 2022-06-14 Acceleware Ltd. Apparatus and methods for electromagnetic heating of hydrocarbon formations
US11920448B2 (en) 2016-04-13 2024-03-05 Acceleware Ltd. Apparatus and methods for electromagnetic heating of hydrocarbon formations
US10320175B2 (en) * 2016-09-07 2019-06-11 Ultra Electronics Limited Mechanical link
US20180069386A1 (en) * 2016-09-07 2018-03-08 Ultra Electronics Limited Mechanical link
US11410796B2 (en) 2017-12-21 2022-08-09 Acceleware Ltd. Apparatus and methods for enhancing a coaxial line
US11296434B2 (en) 2018-07-09 2022-04-05 Acceleware Ltd. Apparatus and methods for connecting sections of a coaxial line

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