CH549835A - KEYPAD KEY SWITCH. - Google Patents

KEYPAD KEY SWITCH.

Info

Publication number: CH549835A
Authority: CH; Switzerland
Prior art keywords: key switch; keypad key; keypad; switch; key
Prior art date: 1971-11-18

Application number

CH1680172A

Other languages

French (fr)

Original Assignee

Illinois Tool Works

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.)

1971-11-18

Filing date

1972-11-17

Publication date

1974-05-31

1972-11-17 Application filed by Illinois Tool Works filed Critical Illinois Tool Works

1974-05-31 Publication of CH549835A publication Critical patent/CH549835A/en

Links

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
- H03K17/972—Switches controlled by moving an element forming part of the switch using a magnetic movable element having a plurality of control members, e.g. keyboard

CH1680172A 1971-11-18 1972-11-17 KEYPAD KEY SWITCH. CH549835A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US19987271A	1971-11-18	1971-11-18

Publications (1)

Publication Number	Publication Date
CH549835A true CH549835A (en)	1974-05-31

Family

ID=22739364

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH1680172A CH549835A (en)	1971-11-18	1972-11-17	KEYPAD KEY SWITCH.

Country Status (10)

Country	Link
US (1)	US3714611A (en)
JP (1)	JPS4863637A (en)
AU (1)	AU455620B2 (en)
CA (1)	CA984051A (en)
CH (1)	CH549835A (en)
DE (1)	DE2251676A1 (en)
FR (1)	FR2160515B2 (en)
GB (1)	GB1346128A (en)
IT (1)	IT970930B (en)
NL (1)	NL7214592A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4099176A (en) *	1974-05-30	1978-07-04	Illinois Tool Works Inc.	Magnetic key switch having a removable support assembly
US4017850A (en) *	1976-02-02	1977-04-12	Illinois Tool Works Inc.	Magnetic keyswitch with two-piece support assembly
US4334204A (en) *	1980-06-30	1982-06-08	The Boeing Company	Proximity switch assembly
US4379973A (en) *	1981-05-20	1983-04-12	C & K Components, Inc.	Universal logic switch
DE3300797A1 (en) *	1983-01-12	1984-07-12	E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen	FASTENING DEVICE FOR A CONTROL DEVICE
DE3678620D1 (en) *	1985-06-15	1991-05-16	Ego Elektro Blanc & Fischer	FASTENING DEVICE FOR HOLDING FUNCTIONAL DEVICES OR THE LIKE

1971
- 1971-11-18 US US00199872A patent/US3714611A/en not_active Expired - Lifetime
1972
- 1972-09-29 CA CA152,927A patent/CA984051A/en not_active Expired
- 1972-10-17 AU AU47843/72A patent/AU455620B2/en not_active Expired
- 1972-10-21 DE DE2251676A patent/DE2251676A1/en active Pending
- 1972-10-27 NL NL7214592A patent/NL7214592A/xx unknown
- 1972-11-01 GB GB5034772A patent/GB1346128A/en not_active Expired
- 1972-11-15 FR FR7240603A patent/FR2160515B2/fr not_active Expired
- 1972-11-16 IT IT31732/72A patent/IT970930B/en active
- 1972-11-17 JP JP47114857A patent/JPS4863637A/ja active Pending
- 1972-11-17 CH CH1680172A patent/CH549835A/en unknown

Also Published As

Publication number	Publication date
FR2160515B2 (en)	1979-02-02
FR2160515A2 (en)	1973-06-29
AU455620B2 (en)	1974-11-21
DE2251676A1 (en)	1973-05-24
NL7214592A (en)	1973-05-22
JPS4863637A (en)	1973-09-04
AU4784372A (en)	1974-04-26
US3714611A (en)	1973-01-30
IT970930B (en)	1974-04-20
CA984051A (en)	1976-02-17
GB1346128A (en)	1974-02-06

Similar Documents

Publication	Publication Date	Title
IT998796B (en)	1976-02-20	KEY LOCK WITH BUTTON OPERATION
NL164404C (en)	1980-12-15	KEYBOARD SWITCHING.
DK143007C (en)	1981-10-19	KEY SWITCH
FR2326083A1 (en)	1977-04-22	TOUCH KEY
AR193849A1 (en)	1973-05-31	A SWITCHING MECHANISM
CH536518A (en)	1973-04-30	Keypad key switch
BE814420Q (en)	1974-08-16	KEYPAD SWITCH
SE382279B (en)	1976-01-19	ELECTRIC KEYBOARD SWITCH.
IT975383B (en)	1974-07-20	KEY-OPERATED ELECTRICAL SWITCH OR DISCONNECTOR
ES181396Y (en)	1974-03-01	ELECTRIC SWITCH.
NL7509584A (en)	1976-02-16	KEY SWITCH SYSTEM.
IT953653B (en)	1973-08-10	KEYBOARD WITH SWITCHES A WITH MULTIPLE KEYS
CH557588A (en)	1974-12-31	KEY SWITCH.
CH549835A (en)	1974-05-31	KEYPAD KEY SWITCH.
ES211879Y (en)	1976-11-01	A LIMIT SWITCH.
NL7408664A (en)	1975-01-07	KEYBOARD SWITCH.
IT949087B (en)	1973-06-11	KEY SWITCH
NL7410303A (en)	1975-02-04	KEY SELECTOR SWITCH FOR TELEPHONE DEVICES.
NL7405669A (en)	1975-02-18	MAGNETIC KEY SWITCH.
CH558991A (en)	1975-02-14	ELECTRONIC TOUCH SWITCH.
CH551114A (en)	1974-06-28	DAMPENESS ELECTRONIC SWITCH.
CH556100A (en)	1974-11-15	SWITCH FOR SUPPRACONDUCTOR CIRCUIT.
AR200879A1 (en)	1974-12-27	KEY SWITCH
ES176710Y (en)	1973-04-01	ELECTRIC SWITCH.
NL147907B (en)	1975-11-17	CALL COUNTER SWITCH.

Legal Events

Date	Code	Title	Description
1978-07-14	PLZ	Patent of addition ceased