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DE68921367D1 - Membrantastatur mit einer Blockierungsvorrichtung. - Google Patents

Membrantastatur mit einer Blockierungsvorrichtung.

Info

Publication number
DE68921367D1
DE68921367D1 DE68921367T DE68921367T DE68921367D1 DE 68921367 D1 DE68921367 D1 DE 68921367D1 DE 68921367 T DE68921367 T DE 68921367T DE 68921367 T DE68921367 T DE 68921367T DE 68921367 D1 DE68921367 D1 DE 68921367D1
Authority
DE
Germany
Prior art keywords
blocking device
membrane keyboard
keyboard
membrane
blocking
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 - Fee Related
Application number
DE68921367T
Other languages
English (en)
Other versions
DE68921367T2 (de
Inventor
Robert Schmitz
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.)
Honeywell Inc
Original Assignee
Honeywell Inc
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 Honeywell Inc filed Critical Honeywell Inc
Application granted granted Critical
Publication of DE68921367D1 publication Critical patent/DE68921367D1/de
Publication of DE68921367T2 publication Critical patent/DE68921367T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/068—Actuators having a not operable condition
DE68921367T 1988-05-02 1989-04-27 Membrantastatur mit einer Blockierungsvorrichtung. Expired - Fee Related DE68921367T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/189,273 US4820887A (en) 1988-05-02 1988-05-02 Membrane keyboard blockout apparatus

Publications (2)

Publication Number Publication Date
DE68921367D1 true DE68921367D1 (de) 1995-04-06
DE68921367T2 DE68921367T2 (de) 1995-09-21

Family

ID=22696650

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68921367T Expired - Fee Related DE68921367T2 (de) 1988-05-02 1989-04-27 Membrantastatur mit einer Blockierungsvorrichtung.

Country Status (5)

Country Link
US (1) US4820887A (de)
EP (1) EP0340967B1 (de)
JP (1) JPH01315910A (de)
CA (1) CA1306035C (de)
DE (1) DE68921367T2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5000248A (en) * 1988-11-10 1991-03-19 Lanxide Technology Company, Lp Method of modifying the properties of a metal matrix composite body
US5278399A (en) * 1989-03-28 1994-01-11 Toppan Moore Company, Ltd. Data entry unit
US5015829A (en) * 1989-04-28 1991-05-14 Hewlett-Packard Company Key pad and front panel assembly for an electronic instrument
US5385417A (en) * 1993-04-12 1995-01-31 Wade; Lawrence E. Key cover for individual key of computer keyboard
US5290979A (en) * 1993-04-19 1994-03-01 Eaton Corporation Handle block for electrical switching device
US5670760A (en) * 1995-10-24 1997-09-23 Golden Books Publishing Company, Inc. Multi-switch membrane-switch assembly
JPH09213167A (ja) * 1996-02-01 1997-08-15 Nec Corp 押釦スイッチ
JP3812022B2 (ja) * 1996-12-19 2006-08-23 松下電器産業株式会社 プッシュオンスイッチ
GB2321134A (en) 1996-12-24 1998-07-15 Nokia Mobile Phones Ltd An assembly for a keypad
US6832015B2 (en) * 2002-06-28 2004-12-14 Hewlett-Packard Development Company, L.P. Switching apparatus
FR2844388B1 (fr) * 2002-09-05 2005-05-27 Somfy Procede d'inhibition des touches du clavier d'un emetteur d'ordres
US7262379B2 (en) * 2003-04-11 2007-08-28 Polymatech Co., Ltd. Key sheets and method of producing the same
US7832628B2 (en) * 2005-10-21 2010-11-16 Verifone, Inc. Protective cover for terminal keypad security switches
US8330584B1 (en) 2009-07-16 2012-12-11 John Pfanstiehl Remote control with lockable keys
US8598477B2 (en) 2009-10-13 2013-12-03 Barton L. Garvin Universal switch restraint device
US8937259B2 (en) 2009-10-13 2015-01-20 Barton L. Garvin Universal electrical circuit breaker locking device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3333069A (en) * 1964-01-15 1967-07-25 Philip M Anderson Pushbutton stop for multiple key telephone set
US3860711A (en) * 1970-04-30 1975-01-14 Johnson & Son Inc S C Synergistic insecticidal composition containing dipropargyl phenylphosphonate
US3771387A (en) * 1972-11-20 1973-11-13 Robertshaw Controls Co Control device with concealed selector means and method of making the same
US3906814A (en) * 1973-10-26 1975-09-23 Rolf I Magnussen Keyboard key lock mechanism
CH609485A5 (en) * 1976-05-31 1979-02-28 Matsu Kyu Kk Miniature switch
US4497987A (en) * 1981-04-06 1985-02-05 Sweda International, Inc. Keyboard spacer

Also Published As

Publication number Publication date
EP0340967A3 (de) 1991-01-23
DE68921367T2 (de) 1995-09-21
EP0340967B1 (de) 1995-03-01
EP0340967A2 (de) 1989-11-08
US4820887A (en) 1989-04-11
CA1306035C (en) 1992-08-04
JPH01315910A (ja) 1989-12-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee