SE393695B - KEYBOARD DRUM UNIT - Google Patents

KEYBOARD DRUM UNIT

Info

Publication number
SE393695B
SE393695B SE7317282A SE7317282A SE393695B SE 393695 B SE393695 B SE 393695B SE 7317282 A SE7317282 A SE 7317282A SE 7317282 A SE7317282 A SE 7317282A SE 393695 B SE393695 B SE 393695B
Authority
SE
Sweden
Prior art keywords
keyboard
drum unit
drum
unit
keyboard drum
Prior art date
Application number
SE7317282A
Other languages
Swedish (sv)
Inventor
G H Durkee
P G Wareberg
A C Yoder
Original Assignee
Bowmar Instrument Corp
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 Bowmar Instrument Corp filed Critical Bowmar Instrument Corp
Publication of SE393695B publication Critical patent/SE393695B/en

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
    • H01H13/78—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 characterised by the contacts or the contact sites
    • H01H13/785—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 characterised by the contacts or the contact sites characterised by the material of the contacts, e.g. conductive polymers
    • 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
    • H01H13/7006—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 comprising a separate movable contact element for each switch site, all other elements being integrated in layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2201/00—Contacts
    • H01H2201/022—Material
    • H01H2201/026—Material non precious
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2203/00—Form of contacts
    • H01H2203/036—Form of contacts to solve particular problems
    • H01H2203/04—Form of contacts to solve particular problems to facilitate connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2203/00—Form of contacts
    • H01H2203/036—Form of contacts to solve particular problems
    • H01H2203/042—Form of contacts to solve particular problems to avoid cross-overs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2205/00—Movable contacts
    • H01H2205/016—Separate bridge contact
    • H01H2205/024—Means to facilitate positioning
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/024—Properties of the substrate
    • H01H2209/032—Properties of the substrate non elastomeric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/026—Separate dome contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/014—Electro deposition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/016—Selective etching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/024—Packing between substrate and membrane
    • H01H2229/026—Riveting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/002—Calculator, computer
SE7317282A 1973-01-02 1973-12-20 KEYBOARD DRUM UNIT SE393695B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US32014773A 1973-01-02 1973-01-02

Publications (1)

Publication Number Publication Date
SE393695B true SE393695B (en) 1977-05-16

Family

ID=23245080

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7317282A SE393695B (en) 1973-01-02 1973-12-20 KEYBOARD DRUM UNIT

Country Status (14)

Country Link
US (1) US3796843A (en)
JP (1) JPS557643B2 (en)
AR (1) AR199821A1 (en)
AU (1) AU6390273A (en)
BR (1) BR7310277D0 (en)
CA (1) CA992124A (en)
DE (1) DE2365083C3 (en)
FR (1) FR2212950A5 (en)
GB (1) GB1430399A (en)
HK (1) HK24077A (en)
HU (1) HU170381B (en)
IT (1) IT1005548B (en)
SE (1) SE393695B (en)
SU (1) SU597352A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE30923E (en) 1973-01-02 1982-05-04 Bowmar Instrument Corporation Calculator keyboard switch with disc spring contact and printed circuit board

Families Citing this family (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000389A (en) * 1971-08-23 1976-12-28 Hewlett-Packard Company Printed circuit board and contact assembly for keyboard switch assemblies
US3898421A (en) * 1972-08-18 1975-08-05 Matsushita Electric Ind Co Ltd Push button switch with elastic conductive sheet
GB1435171A (en) * 1973-05-11 1976-05-12 Sumlock Anita Electronics Ltd Keyboards
US3858020A (en) * 1973-07-30 1974-12-31 Staco Switch Inc Pushbutton with spring contactor
US3860771A (en) * 1973-10-29 1975-01-14 Chomerics Inc Keyboard switch assembly with dome shaped actuator having associated underlying contactor means
US3905233A (en) * 1974-03-26 1975-09-16 Us Army Package penetration indicating apparatus
AT337275B (en) * 1974-05-07 1977-06-27 Preh Elektro Feinmechanik ULTRASONIC REMOTE CONTROL DEVICE
US4074088A (en) * 1974-05-21 1978-02-14 Texas Instruments Incorporated Keyboard apparatus and method of making
US3908109A (en) * 1974-06-14 1975-09-23 Mohawk Data Sciences Corp Dome shaped switch member
US4018999A (en) * 1974-09-12 1977-04-19 Mohawk Data Sciences Corporation Keyboard switch assembly having adhesive position retainer element
JPS5133876A (en) * 1974-09-18 1976-03-23 Gikoo Kk
US3941964A (en) * 1974-12-09 1976-03-02 Bowmar Instrument Corporation Push-button type binary switch device
US4032728A (en) * 1974-12-20 1977-06-28 Olympia Werke Ag Push button switch
US3996427A (en) * 1975-01-10 1976-12-07 Texas Instruments Incorporated Pushbutton keyboard system and method of making same
JPS5180975A (en) * 1975-01-10 1976-07-15 Gikoo Kk PUTSUSHUBOTANSUITSUCHI
US3995128A (en) * 1975-01-10 1976-11-30 Texas Instruments Incorporated Pushbutton keyboard system having preformed recessed support with contacts mounted on face and in recesses
US3973091A (en) * 1975-02-03 1976-08-03 Texas Instruments Incorporated Pushbutton keyboard assembly having pole and inner contacts simultaneously engaged by a bridging contact
US3995126A (en) * 1975-04-03 1976-11-30 Magic Dot, Inc. Membrane keyboard apparatus
CA1034175A (en) * 1975-04-16 1978-07-04 Pak-Jong Chu Multi-contact push-button switch
US4029916A (en) * 1975-04-18 1977-06-14 Northern Electric Company Limited Multi-contact push-button switch and plural embodiment for keyboard switch assembly
US3996429A (en) * 1975-04-18 1976-12-07 Northern Electric Company Limited Multi-contact push-button switch having plural prestressed contact members designed to provide plural circuit simultaneous switching inputs
JPS5838494Y2 (en) * 1975-09-10 1983-08-31 アルプスデンキ カブシキガイシヤ Oshi button switch
US4046981A (en) * 1975-12-24 1977-09-06 Texas Instruments Incorporated Keyboard switch with printed wiring board structure and its method of manufacture
US4045636A (en) * 1976-01-28 1977-08-30 Bowmar Instrument Corporation Keyboard switch assembly having printed circuit board with plural layer exposed contacts and undersurface jumper connections
FR2343323A1 (en) * 1976-03-05 1977-09-30 Schoeller & Co Elektrotech DECLICK SWITCH ESPECIALLY FOR TELEVISION AND RADIO RECEIVERS
JPS52119071U (en) * 1976-03-08 1977-09-09
JPS538585U (en) * 1976-07-07 1978-01-25
DE7624175U1 (en) * 1976-07-31 1976-11-25 Wilhelm Ruf Kg, 8000 Muenchen keyboard
US4071718A (en) * 1976-10-22 1978-01-31 Bowmar Instrument Corporation Flat keyboard assembly having cover type membrane with protrusions to align switch components
US4123627A (en) * 1976-12-06 1978-10-31 Texas Instruments Incorporated Keyboard apparatus
DE2705756C2 (en) * 1977-02-11 1982-09-02 Alps Electric Co., Ltd., Tokyo Push button switch for electronic desk calculators or the like.
US4085306A (en) * 1977-06-09 1978-04-18 Kb-Denver, Inc. Keyboard switch assemblies
US4127752A (en) * 1977-10-13 1978-11-28 Sheldahl, Inc. Tactile touch switch panel
JPS5463279A (en) * 1977-10-28 1979-05-22 Fujitsu Ltd Pushhbutton switch
JPS5470072U (en) * 1977-10-28 1979-05-18
US4254309A (en) * 1978-12-18 1981-03-03 Texas Instruments Incorporated Snap-through characteristic keyboard switch
US4195210A (en) * 1979-02-27 1980-03-25 Kb-Denver, Inc. Switching assemblies
US4349708A (en) * 1979-08-22 1982-09-14 Atari, Inc. Joystick control
US4314117A (en) * 1980-07-24 1982-02-02 Re-Al, Inc. Membrane contact switch
US4355483A (en) * 1981-01-05 1982-10-26 The Quaker Oats Company Switch mechanism
US4488016A (en) * 1983-01-24 1984-12-11 Amp Incorporated Membrane switch having crossing circuit conductors
JPS6196650U (en) * 1984-11-30 1986-06-21
JPS62171126U (en) * 1986-04-18 1987-10-30
JPS62136026U (en) * 1986-02-22 1987-08-27
JPS6328220U (en) * 1986-08-11 1988-02-24
JPS63131416A (en) * 1986-11-20 1988-06-03 ブラザー工業株式会社 Printed circuit board
GB2214352A (en) * 1988-01-12 1989-08-31 Electronic Components Ltd Sealed electrical switch
GB2229577A (en) * 1989-03-23 1990-09-26 Well Treasure Ind Ltd Mounting contact elements on printed circuit boards
US6222525B1 (en) * 1992-03-05 2001-04-24 Brad A. Armstrong Image controllers with sheet connected sensors
DE9300501U1 (en) * 1992-12-14 1993-04-01 Abb Patent Gmbh, 68309 Mannheim Electrical switching device
US5512721A (en) * 1993-09-28 1996-04-30 Unisurge, Inc. Autoclavable electrical switch assembly for use with a medical device and medical device using the same
US8674932B2 (en) * 1996-07-05 2014-03-18 Anascape, Ltd. Image controller
US20040160414A1 (en) * 1996-07-05 2004-08-19 Armstrong Brad A. Image controller
US5755026A (en) * 1996-08-15 1998-05-26 Delco Electronics Corporation Method of preventing condensation on a surface housing an electronic apparatus
JP3765723B2 (en) * 2000-11-15 2006-04-12 ホシデン株式会社 Push-button switch
JP2003068158A (en) * 2001-08-30 2003-03-07 Shin Etsu Polymer Co Ltd Push button switch device
WO2005124805A1 (en) * 2004-06-15 2005-12-29 Japan Aviation Electronics Industry Limited Dome contact and multistage operating electric switch using the same
US7091433B2 (en) * 2004-09-17 2006-08-15 Emerson Electric Co. Low profile automotive latch release switch assembly
US7067757B1 (en) * 2004-12-17 2006-06-27 Siemens Communications Inc. Multi-tier keypad assembly
DE102006010811B4 (en) * 2006-03-07 2018-03-01 Huf Hülsbeck & Fürst Gmbh & Co. Kg Switching element and actuator so that as well as door handle with this actuator
US7829812B2 (en) * 2007-07-03 2010-11-09 Sony Ericsson Mobile Communications Ab Input device and an electronic device comprising an input device
US7652216B2 (en) * 2007-12-18 2010-01-26 Streamlight, Inc. Electrical switch, as for controlling a flashlight
US7700890B2 (en) * 2008-01-15 2010-04-20 Research In Motion Limited Key dome assembly with improved tactile feedback
JP5717249B2 (en) * 2011-04-22 2015-05-13 アルプス電気株式会社 Movable contact member and switch device using the movable contact member

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1165129B (en) * 1960-07-01
JPS427547Y1 (en) * 1964-03-19 1967-04-12
JPS4718061U (en) * 1971-03-31 1972-10-31

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE30923E (en) 1973-01-02 1982-05-04 Bowmar Instrument Corporation Calculator keyboard switch with disc spring contact and printed circuit board

Also Published As

Publication number Publication date
CA992124A (en) 1976-06-29
HK24077A (en) 1977-05-27
SU597352A3 (en) 1978-03-05
AU6390273A (en) 1975-06-26
IT1005548B (en) 1976-09-30
DE2365083B2 (en) 1977-02-17
AR199821A1 (en) 1974-09-30
DE2365083A1 (en) 1974-07-18
US3796843A (en) 1974-03-12
FR2212950A5 (en) 1974-07-26
BR7310277D0 (en) 1974-08-29
JPS49102245A (en) 1974-09-27
JPS557643B2 (en) 1980-02-27
GB1430399A (en) 1976-03-31
HU170381B (en) 1977-06-28
DE2365083C3 (en) 1980-02-07

Similar Documents

Publication Publication Date Title
SE393695B (en) KEYBOARD DRUM UNIT
AT351454B (en) ASSOCIATION
AR204336A1 (en) KEYBOARD PIECE
FI56432B (en) GASKOLV I SKJUTVAPEN
DE2462468A1 (en) CHANGEOVER - SWITCH ARRANGEMENT
NO139622C (en) KEYBOARD.
SE401011B (en) TOILET
NL7415261A (en) KEYBOARD.
BR7402716D0 (en) ROTATING DRUM IMPROVEMENTS
IT1007343B (en) TOILET
AT322351B (en) CALENDER
AT321708B (en) calender
BE821537A (en) DETORSION MECHANISM
CH542325A (en) Flushing unit
SE389204B (en) ELECTROPHOTOGRAPHIC COPYER
SE394913B (en) KEYBOARD SWITCH
BR7406139D0 (en) CONSTRUCTION UNIT
IT1005302B (en) CABLE DRUM
BE821426A (en) CASH CONSTRUCTION
IT1015099B (en) WRITING DRUM
IT1050248B (en) URACILI REPLACED
AT329338B (en) DEVELOPMENT
IT1049219B (en) BENZIMIDAZOLS REPLACED
SU540596A1 (en) Kombnaya klubnekornevoborochnoy machine
TR18484A (en) HERBISIT MIXTURES