Patent US4239950A successfully refreshed from Google Patents.
US4239950A
Expired / Lapsed
US
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Pushbutton switch
Assignee: ITT Inc
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Filing: 1979-02-28
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Granted: 1980-12-16
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Expires: 1999-02-28
Abstract
Abstract A pushbutton switch of the type utilizing contact blades. The blades are the fixed contacts of the switch and consist of a U-shaped contact part and a straight connecting part joined therewith. The connecting part extends through an opening in the base of the U-shaped contact part and projects from opposite sides of the switch housing. Accordingly, the respective parts can be made of different materials and in an inexpensive and simple manner.
Inventors
- 👤 Klaus Hinze
- 👤 Klaus B. Wisskirchen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:26
CPC Classifications
H; H01; H01H; H01H15/00; H01H15/02; H01H15/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
140 words
A pushbutton switch comprising, in combination: a longitudinally extending housing having at least a pair of cavities therein for receiving fixed contacts; a slider movably mounted in said housing and in the longitudinal direction of said housing; a pair of longitudinally spaced U-shaped fixed contacts respectively fixedly mounted in said cavities, each of said U-shaped fixed contacts having a base portion engaging the bottom of the respective cavity and having at least one slot in said base portion for receiving a blade contact therein; a U-shaped movable contact mounted to said slider for receiving and conductively engaging one leg of said U-shaped fixed contacts between the pair of legs of said U-shaped movable contact; and, a pair of blade contacts respectively extending through and conductively engaging said slot of said U-shaped contacts and extending beyond the housing in opposite directions.
Claim 2
Dependent Claim
140 words
A pushbutton switch comprising, in combination: a longitudinally extending housing having at least a pair of cavities therein for receiving fixed contacts; a slider movably mounted in said housing and in the longitudinal direction of said housing; a pair of longitudinally spaced U-shaped fixed contacts respectively fixedly mounted in said cavities, each of said U-shaped fixed contacts having a base portion engaging the bottom of the respective cavity and having at least one slot in said base portion for receiving a blade contact therein; a U-shaped movable contact mounted to said slider for receiving and conductively engaging one leg of said U-shaped fixed contacts between the pair of legs of said U-shaped movable contact; and, a pair of blade contacts respectively extending through and conductively engaging said slot of said U-shaped contacts and extending beyond the housing in opposite directions.
Claim 3
Dependent Claim
54 words
The switch according to claim 1, wherein each of said U-shaped fixed contacts includes a pair of slots each of said slots being adjacent to one leg of said U-shaped fixed contacts so that the respective one of said blade contacts may extend through either one of said slots of said pair of slots.
Claim 4
Dependent Claim
21 words
The switch according to claim 2, wherein the material of said blades is different than the material of said fixed contacts.
References Cited (Backward Citations)
US1857487A
Cited
FR32100E
Cited
FR1321503A
Cited
US3801875A
Cited
US4016377A
Cited
US3947391A
Cited
US4122317A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-16 | 1984-06-16 | 1984-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-16 | 1988-06-16 | 1988-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-16 | 1992-06-16 | 1992-12-16 | $7700.00 | Window Closed / Lapsed |