Patent US5876345A successfully refreshed from Google Patents.
Patent US3899648A successfully refreshed from Google Patents.
US3899648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nodally operated push-button switch
Assignee: Alps Alpine Co Ltd
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Filing: 1974-03-13
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Granted: 1975-08-12
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Expires: 1994-03-13
Abstract
Abstract A snap-action operable push-button switch has a metal contact of rectangular shape having a pair of rectangular holes at both sides of a central stripe integrally formed therewith, the central stripe being bent toward one side thereof and the metal contact also having a pair of rectangular resilient contact pieces integrally extended therefrom in a size smaller than the size of the rectangular holes.
Inventors
- 👤 Taneo Murata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:57
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/70; H01H13/7006; H01H5/00; H01H5/04; H01H5/18; H01H5/22; H01H13/702; H01H13/703; H01H2205/00; H01H2205/016; H01H2205/024; H01H2211/00; H01H2211/006; H01H2223/00; H01H2223/034; H01H2223/054; H01H2229/00; H01H2229/022; H01H2229/024; H01H2229/032; H01H2233/00; H01H2233/01; H01H2233/014; H01H2233/05; H01H2233/058; H01H2233/07; H01H2233/074; H01H2235/00; H01H2235/002; H01H2235/008
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
77 words
A nodally operable push-button switch comprising a case, and a flexible conducting metal plate, said plate having a normally curved central stripe and a pair of rectangular holes at both sides of said central stripe integrally formed therewith and also having a pair of resilient contact pieces integrally extended therefrom smaller than the size of the holes, and opposite side edges of said metal plate being drawn so that they are shorter than the said central stripe.
Claim 2
Dependent Claim
77 words
A nodally operable push-button switch comprising a case, and a flexible conducting metal plate, said plate having a normally curved central stripe and a pair of rectangular holes at both sides of said central stripe integrally formed therewith and also having a pair of resilient contact pieces integrally extended therefrom smaller than the size of the holes, and opposite side edges of said metal plate being drawn so that they are shorter than the said central stripe.
Claim 3
Dependent Claim
34 words
A nodally operable push-button switch as set forth in claim 1, further comprising a lever mounted slidably into said case, and a resilient means disposed between the said curved central stripe and said lever.
Claim 4
Dependent Claim
76 words
A nodally operable push-button switch as set forth in claim 2, further comprising a printed circuit substrate having stationary contacts, and a frame, said case having legs with claws integrally projected therefrom said claws being engaged with holes provided in said printed circuit substrate, said lever being slidably inserted into said case, and an insulating plate provided on said printed circuit substrate and having a pair of rectangular holes formed therethrough for contacting said stationary contacts.
Claim 5
Dependent Claim
242 words
A nodally operable push-button switch as set forth in claim 1, further comprising a printed circuit substrate having a plurality of stationary contacts, a frame having a plurality of holes aligned in a manner crossing at right angles with each other, a plurality of cases each having legs, each of said legs having claw portion for engaging with said printed circuit substrate, a lever slidably inserted into said case, a movable contacting plate disposed at the bottom of said case, said contacting plate having a central strip with a bent portion and having a pair of rectangular holes at both sides of central stripe integrally formed therewith and also having a pair of rectangular resilient contact pieces integrally extended therefrom which are smaller than the size of the holes, and opposite side edges of said metal plate being drawn to be shorter than the central stripe of said metal plate, an insulating plate having a pair of rectangular holes for contacting the stationary contacts provided on said printed circuit substrate, said lever having a spring hole, a resilient material inserted between the spring holes of said lever and the bent portion of said movable contacting plate to form an operating unit, a plurality of said operating units mounted to said printed circuit substrate and said frame, and a plurality of knobs with mounting shafts engaged with the holes of said levers, said levers being slidably inserted into the holes of said frame.
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) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |