US4814561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic member for supporting a key top in a push button switch construction
Assignee: Sharp Corp
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Filing: 1983-11-03
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Granted: 1989-03-21
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Expires: 2003-11-03
Abstract
Abstract An elastic key top construction for supporting a key top comprising a key top push or support section on which the key top is mounted, a projection disposed below the key top support section, a first movable wall integral with the key top support section and the projection for connecting the key top support section to the projection while allowing relative movement to each, a second movable wall integral with the key top support section, the second movable wall being connected to a installment support member of the key top construction so as to allow up/down movement of the key top support section in respect to the base member.
Inventors
- 👤 Hiroshi Kawasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:17
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/70; H01H13/702; H01H2215/00; H01H2215/004; H01H2227/00; H01H2227/022
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
105 words
A push button configuration comprising a key top support section, a projection disposed below said key top support section, a first movable wall which connects said key top support section to said projection while allowing relative movement thereto, and a second movable wall for connecting said key top support section to a base member via an installment member, said installment member being provided with extrusion elements which strengthen said installment member said projection having an upper face portion which defines a concave section having a depth about twice the thickness of said first movable wall and a diameter smaller than a diameter of said projection.
Claim 2
Dependent Claim
105 words
A push button configuration comprising a key top support section, a projection disposed below said key top support section, a first movable wall which connects said key top support section to said projection while allowing relative movement thereto, and a second movable wall for connecting said key top support section to a base member via an installment member, said installment member being provided with extrusion elements which strengthen said installment member said projection having an upper face portion which defines a concave section having a depth about twice the thickness of said first movable wall and a diameter smaller than a diameter of said projection.
Claim 3
Dependent Claim
20 words
The push button configuration of claim 1, further including a conductive member on a bottom face portion of said projection.
Claim 4
Dependent Claim
31 words
The push button configuration of claim 1, wherein said integral projection, first and second movable walls, key top support section and installment member including said extrusions are made of elastic rubber.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-20 | 1992-09-19 | 1993-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-20 | 1996-09-19 | 1997-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-20 | 2000-09-19 | 2001-03-21 | $7700.00 | Window Closed / Lapsed |