US3946171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple pushbutton switch assembly for telephone sets and the like
Assignee: Nortel Networks Ltd
•
Filing: 1974-06-17
•
Granted: 1976-03-23
•
Expires: 1994-06-17
Abstract
Abstract For telephone sets and similar forms of apparatus in which pushbuttons are mounted more or less flush with the outside surface and actuated by pivoting, a series of such pushbuttons are mounted on a shaft secured in a housing. The pushbuttons are mounted on the shaft at one end and at the other end rest on pushbutton switch mechanisms. Each button is identical and interchangeable. Locating formations on buttons and housing interengage to locate the pushbuttons. The switch mechanisms are spring loaded and urge pushbuttons to a non-actuated position. Indicator windows for removable and interchangeable indicators can be provided.
Inventors
- 👤 Gerd Kuhfus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:30
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/23; H01; H01H; H01H21/00; H01H21/02; H01H21/18; H01H21/22; H01H9/00; H01H9/18; H01H2223/00; H01H2223/034; H01H2223/0345
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
187 words
A push button switch assembly for pushbutton actuation of switches, comprising: a housing, an aperture in said housing, and a plurality of pushbuttons pivotally mounted in said aperture, each of said pushbuttons of rectangular plan form and including pivotting means at a rear end, the pushbuttons extending side-by-side in said apertures; parallel spaced apart ribs in said housing, said ribs extending one along each side of said aperture and normal to and away from an outer surface of the housing; a shaft extending through said ribs on said housing and through said pivotting means on each of said push-buttons, and locating means on each of said pushbuttons to locate each button relative to the housing in a direction corresponding to the pivotal movement of the pushbutton, a plurality of switches in said housing beneath said pushbuttons, a switch beneath each pushbutton, each switch including a movable member and resilient means biasing said movable member into contact with an under surface of the related pushbutton, and said movable member biasing said pushbutton to an initial position having a top surface flush with a top surface of said housing.
Claim 2
Dependent Claim
187 words
A push button switch assembly for pushbutton actuation of switches, comprising: a housing, an aperture in said housing, and a plurality of pushbuttons pivotally mounted in said aperture, each of said pushbuttons of rectangular plan form and including pivotting means at a rear end, the pushbuttons extending side-by-side in said apertures; parallel spaced apart ribs in said housing, said ribs extending one along each side of said aperture and normal to and away from an outer surface of the housing; a shaft extending through said ribs on said housing and through said pivotting means on each of said push-buttons, and locating means on each of said pushbuttons to locate each button relative to the housing in a direction corresponding to the pivotal movement of the pushbutton, a plurality of switches in said housing beneath said pushbuttons, a switch beneath each pushbutton, each switch including a movable member and resilient means biasing said movable member into contact with an under surface of the related pushbutton, and said movable member biasing said pushbutton to an initial position having a top surface flush with a top surface of said housing.
Claim 3
Dependent Claim
38 words
An assembly as claimed in claim 1, said locating means on each pushbutton comprising a formation on a forward end of the pushbutton and adapted to engage with a formation on said housing in an upward, nonoperated position.
Claim 4
Dependent Claim
24 words
An assembly as claimed in claim 1, each pushbutton including a recess in an upper surface thereof, and an indicator positioned in said recess.
Claim 5
Dependent Claim
80 words
An assembly as claimed in claim 1, said housing comprising a cover for a telephone set, said cover including a top web portion and a front flange, said web portion and front flange having a curved profile, in cross-section, at the junction of web and flange, said aperture in said housing formed at a forward position in said web portion and extending into said front flange, said pushbuttons having a curved front portion to match the profile of said cover.
References Cited (Backward Citations)
US2491168A
Cited
US2790859A
Cited
US2966559A
Cited
US2821582A
Cited
US2944120A
Cited
US3179756A
Cited
US3155806A
Cited
DE1490542A1
Cited
US3659061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-23 | 1979-09-22 | 1980-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-23 | 1983-09-22 | 1984-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-23 | 1987-09-22 | 1988-03-23 | $7700.00 | Window Closed / Lapsed |