GB720602A - Electric resistance elements - Google Patents

Electric resistance elements

Info

Publication number
GB720602A
GB720602A GB456252A GB456252A GB720602A GB 720602 A GB720602 A GB 720602A GB 456252 A GB456252 A GB 456252A GB 456252 A GB456252 A GB 456252A GB 720602 A GB720602 A GB 720602A
Authority
GB
United Kingdom
Prior art keywords
conducting material
pulverulent
sponge
electric resistance
resistance elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB456252A
Inventor
Douglas Bulgin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB456252A priority Critical patent/GB720602A/en
Publication of GB720602A publication Critical patent/GB720602A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

720,602. Microphones &c. DUNLOP RUBBER CO., Ltd. Jan. 16, 1953 [Feb. 21, 1952], No. 4562/52. Drawings to Specification. Class 40 (4). [Also in Groups XXXVI and XXXVIII] The sensitive element in an electrical pickup or microphone consists of an electrical non- conducting material of low permanent set having an adherent coating of a pulverulent electrically conducting material on its surfaces. The non-conducting material may be sponge rubber (natural or synthetic) or a sponge of a polymer of vinyl acetate or chloride or a copolymer of both, or of regenerated cellulose or of a cellulose ether or ester. Alternatively it may be a solid elastic material. The conducting material may be powdered graphite, acetylene or furnace black or pulverulent metals, e.g. tungsten.
GB456252A 1952-02-21 1952-02-21 Electric resistance elements Expired GB720602A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB456252A GB720602A (en) 1952-02-21 1952-02-21 Electric resistance elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB456252A GB720602A (en) 1952-02-21 1952-02-21 Electric resistance elements

Publications (1)

Publication Number Publication Date
GB720602A true GB720602A (en) 1954-12-22

Family

ID=9779489

Family Applications (1)

Application Number Title Priority Date Filing Date
GB456252A Expired GB720602A (en) 1952-02-21 1952-02-21 Electric resistance elements

Country Status (1)

Country Link
GB (1) GB720602A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058555B (en) * 1956-08-23 1959-06-04 Siemens Ag Elastic pressure resistance transducer for electroacoustic and mechanical purposes
US3603142A (en) * 1970-05-07 1971-09-07 Donald Saylak Method of detecting cracks and measuring strain in polymeric structures
GB2141548A (en) * 1983-06-16 1984-12-19 Welwyn Electronics Ltd Strain-gauge transducer
EP0189994A2 (en) * 1985-01-29 1986-08-06 University of Strathclyde Elastomeric electro-conductive devices
EP0191555A2 (en) * 1985-01-29 1986-08-20 University of Strathclyde Electro-conductive elastomeric devices
US4708019A (en) * 1984-06-27 1987-11-24 Gte Laboratories Incorporated Measurement of strain employing a piezoresistive blend of a doped acetylene polymer and an elastomer
GB2222258A (en) * 1988-07-29 1990-02-28 David Coates Tactile pressure sensor
US6501463B1 (en) 1999-12-10 2002-12-31 Siemens Technology -To-Business Center Llc Electronic whiteboard system using a tactile foam sensor
DE102004008432A1 (en) * 2004-02-19 2005-09-15 Hottinger Baldwin Messtechnik Gmbh Strain gauge for recording expansions or compressions on deformation elements

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058555B (en) * 1956-08-23 1959-06-04 Siemens Ag Elastic pressure resistance transducer for electroacoustic and mechanical purposes
US3603142A (en) * 1970-05-07 1971-09-07 Donald Saylak Method of detecting cracks and measuring strain in polymeric structures
GB2141548A (en) * 1983-06-16 1984-12-19 Welwyn Electronics Ltd Strain-gauge transducer
US4708019A (en) * 1984-06-27 1987-11-24 Gte Laboratories Incorporated Measurement of strain employing a piezoresistive blend of a doped acetylene polymer and an elastomer
EP0191555A3 (en) * 1985-01-29 1987-09-02 University Of Strathclyde Electro-conductive elastomeric devices
EP0189994A3 (en) * 1985-01-29 1986-12-30 University Of Strathclyde Elastomeric electro-conductive devices
EP0191555A2 (en) * 1985-01-29 1986-08-20 University of Strathclyde Electro-conductive elastomeric devices
EP0189994A2 (en) * 1985-01-29 1986-08-06 University of Strathclyde Elastomeric electro-conductive devices
GB2222258A (en) * 1988-07-29 1990-02-28 David Coates Tactile pressure sensor
US6501463B1 (en) 1999-12-10 2002-12-31 Siemens Technology -To-Business Center Llc Electronic whiteboard system using a tactile foam sensor
US6529122B1 (en) 1999-12-10 2003-03-04 Siemens Technology-To-Business Center, Llc Tactile sensor apparatus and methods
DE102004008432A1 (en) * 2004-02-19 2005-09-15 Hottinger Baldwin Messtechnik Gmbh Strain gauge for recording expansions or compressions on deformation elements
DE102004008432B4 (en) * 2004-02-19 2015-05-28 Hottinger Baldwin Messtechnik Gmbh Strain gauges for detecting strains or compressions on deformation bodies

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