US4453062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pushbutton switch and integral lamp for telephone dials
Assignee: Nortel Networks Ltd
•
Filing: 1982-12-16
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Granted: 1984-06-05
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Expires: 2002-12-16
Abstract
Abstract A combined pushbutton and lamp for a telephone dial has two housings connected together to form an enclosure for a lamp and a switch. A pivoted pushbutton is mounted on the housings, with a center part over the lamp, pivot members on one side of the center part fitting on pivots or one of the housings and a lever extending on the other side of the center part and actuating the switch. A bezel member snaps over the center part of the pushbutton and holds it assembled to the housings. The lamp extends up into the center part of the pushbutton which has restricted movement, the lever amplifying this movement to actuate the switch.
Inventors
- 👤 Michael Brown
- 👤 David W. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:15
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/23; H01; H01H; H01H13/00; H01H13/02; H01H13/023
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
104 words
A pushbutton switch and integral lamp for telephone dials comprising: first and second housing members connected together, to form an enclosure; two spring terminals mounted in one of said housing members and extending across to the other of said housing members; a lamp positioned and held between said spring terminals; a switch positioned and held between said housing members; a pushbutton pivotally mounted on a top surface of one of said housing members and including a lever extending over said switch for actuation of said switch on depression of said pushbutton; and a part of said pushbutton being translucent and extending over said lamp.
Claim 2
Dependent Claim
104 words
A pushbutton switch and integral lamp for telephone dials comprising: first and second housing members connected together, to form an enclosure; two spring terminals mounted in one of said housing members and extending across to the other of said housing members; a lamp positioned and held between said spring terminals; a switch positioned and held between said housing members; a pushbutton pivotally mounted on a top surface of one of said housing members and including a lever extending over said switch for actuation of said switch on depression of said pushbutton; and a part of said pushbutton being translucent and extending over said lamp.
Claim 3
Dependent Claim
103 words
A switch as claimed in claim 12, the first housing member comprising two webs extending forward and rearward respectively from a laterally extending web connecting a rear end of the forward web and a front end of the rearward web; the webs offset in parallel planes; a further laterally extending web at the forward end of said forward web overlapping the forward end of the second housing member; and a rib at the end of the further laterally extending web engaged in a recess in the forward end of said second housing member, to hold said housing members together at a front end.
Claim 4
Dependent Claim
49 words
A switch as claimed in claim 2, including a hooked projection at a rear end of said second housing member; an aperture in said rearwardly extending web of said first housing member, said hooked projection engaged through said aperture to retain said housing members together at a rear end.
Claim 5
Dependent Claim
31 words
A switch as claimed in claim 2, including a pivot member extending on each side of the rearwardly extending portion of said first housing, said pushbutton mounted on said pivot members.
Claim 6
Dependent Claim
45 words
A switch as claimed in claim 4, said pushbutton comprising a central part; a rearwardly extending web having bosses on either side and slots in said bosses, said slots fitted over said pivot members; said lever on said pushbutton extending forward from said central part.
Claim 7
Dependent Claim
40 words
A switch as claimed in claim 5, said central part of said pushbutton projecting upward, for engagement by a user, and a bezel member fitted over said central part, the central part extending through an aperture in said bezel member.
Claim 8
Dependent Claim
91 words
A switch as claimed in claim 6, said bezel member including two legs extending downward at a rear end, said legs extending down outside said housing members, and two further legs extending down at a front end of the bezel member, said further legs extending down on either side of said lever inside said housing members, said further legs each including an outwardly projecting rib at its lower end, said ribs engaging in recesses on the inside of each housing member to retain said bezel member and said pushbutton in position.
Claim 9
Dependent Claim
28 words
A switch as claimed in claim 5, said central part of said pushbutton hollow, said lamp positioned beneath said central part and extending upward into said central part.
Claim 10
Dependent Claim
38 words
A switch as claimed in claim 2, including two projections extending from an inner surface of said forwardly extending portion of said first housing, said projections extending into apertures in said switch to position and hold said switch.
Claim 11
Dependent Claim
42 words
A switch as claimed in claim 1, said two spring terminals mounted at one end in said first housing, the opposite ends of said spring terminals positioned in an aperture in said second housing, said aperture restricting separation of said spring terminals.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |