GB1259567A - - Google Patents

Info

Publication number
GB1259567A
GB1259567A GB1259567DA GB1259567A GB 1259567 A GB1259567 A GB 1259567A GB 1259567D A GB1259567D A GB 1259567DA GB 1259567 A GB1259567 A GB 1259567A
Authority
GB
United Kingdom
Prior art keywords
button
silicone rubber
metal particles
contact
stationary contacts
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
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 filed Critical
Publication of GB1259567A publication Critical patent/GB1259567A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/10—Adjustable resistors adjustable by mechanical pressure or force
    • H01C10/106—Adjustable resistors adjustable by mechanical pressure or force on resistive material dispersed in an elastic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/029—Composite material comprising conducting material dispersed in an elastic support or binding material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/40—Contact mounted so that its contact-making surface is flush with adjoining insulation
    • H01H1/403—Contacts forming part of a printed circuit

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Push-Button Switches (AREA)

Abstract

1,259,567. Retractive switches. INTERNATIONAL STANDARD ELECTRIC CORP. 29 July, 1970 [4 Aug., 1969], No. 36703/70. Heading H1N. A push-button switch is rendered chatterless by providing a contact bridge of silicone rubber filled with metal particles to make it conductive, the surface metal particles being brought into contact with stationary contacts by slight deformation of the silicone rubber upon actuation of the switch button, and the conductivity of the silicone rubber part not being substantially altered during such operation. As shown, an impregnated silicone rubber member 7 is loosely retained on printed-circuit contacts 8 by an annulus 9 secured to a base-plate 3<SP>1</SP>. An actuator button 2, urged by a spring 1 against shoulder 311 of housing 3, carries an intermediate member 5 by means of a rivet-like member 4 and helical spring 6 such that upon depression of button 2 the member 5 slightly deforms the silicone member 7 to cause the metal particles therein to pierce the surface thereof and interconnect stationary contacts 8, but the force applied to button 2 cannot act directly on member 7. It is stated that the unoperated contact resistance is greater than one megohm while the operated value is about twenty ohms.
GB1259567D 1969-08-04 1970-07-29 Expired GB1259567A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1939642A DE1939642B2 (en) 1969-08-04 1969-08-04 Switch based on linear pressure for bounce-free switching

Publications (1)

Publication Number Publication Date
GB1259567A true GB1259567A (en) 1972-01-05

Family

ID=5741877

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1259567D Expired GB1259567A (en) 1969-08-04 1970-07-29

Country Status (4)

Country Link
US (1) US3699293A (en)
DE (1) DE1939642B2 (en)
FR (1) FR2056556A5 (en)
GB (1) GB1259567A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242546A (en) 1978-11-06 1980-12-30 International Telephone And Telegraph Corporation Electrical push-button switch
GB2140213A (en) * 1983-05-21 1984-11-21 Alps Electric Co Ltd Push-button switch
GB2212615B (en) * 1987-11-24 1992-06-03 Kokoku Rubber Tech Pressure sensing device

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3950627A (en) * 1972-01-26 1976-04-13 Canon Kabushiki Kaisha Push button switch
JPS506380U (en) * 1973-05-16 1975-01-23
JPS5021681U (en) * 1973-06-21 1975-03-11
US3879586A (en) * 1973-10-31 1975-04-22 Essex International Inc Tactile keyboard switch assembly with metallic or elastomeric type conductive contacts on diaphragm support
JPS5073881U (en) * 1973-11-09 1975-06-28
JPS50118469U (en) * 1974-03-13 1975-09-27
US3944766A (en) * 1974-07-03 1976-03-16 Essex International, Inc. Seat belt buckle having pushbutton type switch with elastomeric conductor bridging contact
JPS5176674U (en) * 1974-12-14 1976-06-16
DE2636988A1 (en) * 1975-08-22 1977-03-03 Lucas Industries Ltd ELECTRIC SWITCH
IT1091947B (en) * 1977-11-07 1985-07-06 Olivetti C Ing E C Spa ELASTOMERIC MATERIAL CONDUCTOR UNDER PRESSURE
DE2754007C2 (en) * 1977-12-03 1986-03-20 Rafi Gmbh & Co Elektrotechnische Spezialfabrik, 7981 Berg Contactless push button for controlling electronic components
DE2900746C3 (en) * 1979-01-10 1982-03-25 Siemens AG, 1000 Berlin und 8000 München Switching device with switching chamber
DE2952033C2 (en) * 1979-12-22 1982-04-29 Standard Elektrik Lorenz Ag, 7000 Stuttgart Unit consisting of a numeric display and two key switches
US4368369A (en) * 1980-03-14 1983-01-11 Citizen Watch Co., Ltd. Electrical switch
DE3803284A1 (en) * 1988-02-04 1989-08-17 Diehl Gmbh & Co ELECTRIC SWITCH
JP2578870Y2 (en) * 1990-02-02 1998-08-20 北川工業 株式会社 Push button switch
TW507924U (en) * 2001-09-07 2002-10-21 High Tech Comp Corp Multi-directional operating push button
DE102006015308A1 (en) * 2006-03-29 2007-10-11 Siemens Ag Insulating shift rod
US7420136B2 (en) * 2006-09-08 2008-09-02 Radio Systems Corporation Compression ring button assembly
US8993903B2 (en) * 2007-07-23 2015-03-31 Honeywell International Inc. Sealed dual plunger switch assembly with simultaneity
DE102007058449A1 (en) * 2007-12-05 2009-06-10 Siemens Ag Contact arrangement for e.g. circuit-breaker, has compression spring provided for force admission of contact disk, where force works against force exercised by stopper and/or actuator on disk

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2430829A (en) * 1946-11-02 1947-11-11 Crompton & Knowles Loom Works Electric weft detector for looms
US2528086A (en) * 1946-11-08 1950-10-31 Bell Telephone Labor Inc Relay contacts of conducting rubber
US2867043A (en) * 1952-10-16 1959-01-06 Applic Electroniques Des Caout Variable electric resistance semiconductor devices
US2752558A (en) * 1953-04-22 1956-06-26 Ernest M Kane Electric transducer
US3194860A (en) * 1962-10-02 1965-07-13 John E Ehrreich Manufacture of reinforced conductive plastic gaskets
US3509296A (en) * 1967-10-23 1970-04-28 Ncr Co Resilient variable-conductivity circuit controlling means

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242546A (en) 1978-11-06 1980-12-30 International Telephone And Telegraph Corporation Electrical push-button switch
GB2140213A (en) * 1983-05-21 1984-11-21 Alps Electric Co Ltd Push-button switch
GB2212615B (en) * 1987-11-24 1992-06-03 Kokoku Rubber Tech Pressure sensing device

Also Published As

Publication number Publication date
DE1939642B2 (en) 1975-01-09
FR2056556A5 (en) 1971-05-14
US3699293A (en) 1972-10-17
DE1939642A1 (en) 1971-04-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PLNP Patent lapsed through nonpayment of renewal fees