Patent US2818341A successfully refreshed from Google Patents.
US3736741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for securing an electrical cell in a timepiece movement
Assignee: Rolex SA
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Filing: 1971-11-04
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Granted: 1973-06-05
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Expires: 1991-11-04
Abstract
Abstract An electrical cell is secured in a trough shaped housing in a plate of a timepiece movement by a device located at the periphery of the housing. Said device comprises at least one member such as a washer with a cut-away edge held by means of a screw which moves it, from a rest position in which the cell is free, downwardly and inwardly into the housing to an operative position biting into the wall of the cell which is firmly held against a contact in the housing.
Inventors
- 👤 D Paratte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:09
CPC Classifications
G; G04; G04C; G04C10/00; H; H01; H01M; H01M50/00; H01M50/20; H01M50/204; H01M50/207; H01M50/216; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
155 words
In a timepiece comprising a frame part having a generally trough shaped housing for an electrical cell, and means for securing the cell in the housing, the improvement wherein said securing means comprise at least one member movable between a rest position at the periphery of the housing and an operative cell-securing position in which a cell-engaging part of the member protrudes laterally into said housing, said at least one member being of a relatively harder material than the casing of a cell for use in the timepiece, said cell-engaging part of the member being shaped to penetrate into the casing of a cell in the housing when the member is moved to the operative position, actuating means for simultaneously (a) moving the member from the rest to the operative position and (b) moving the cell-engaging part of the member generally downwards into the housing, and means for holding said member in the operative position.
Claim 2
Dependent Claim
155 words
In a timepiece comprising a frame part having a generally trough shaped housing for an electrical cell, and means for securing the cell in the housing, the improvement wherein said securing means comprise at least one member movable between a rest position at the periphery of the housing and an operative cell-securing position in which a cell-engaging part of the member protrudes laterally into said housing, said at least one member being of a relatively harder material than the casing of a cell for use in the timepiece, said cell-engaging part of the member being shaped to penetrate into the casing of a cell in the housing when the member is moved to the operative position, actuating means for simultaneously (a) moving the member from the rest to the operative position and (b) moving the cell-engaging part of the member generally downwards into the housing, and means for holding said member in the operative position.
Claim 3
Dependent Claim
54 words
A timepiece according to claim 1, in which said actuating means comprise at least one screw threadably engageable in a bore in said frame part adjacent to the periphery of said housing, a trunco-conical actuating surface engageable with said member being formed on one of said screw and the frame part adjacent said bore.
Claim 4
Dependent Claim
108 words
A timepiece according to claim 1, in which said member is formed by a washer having a large base, a small base, and a trunco-conical face, a section of the washer being cut away to form a chord-like cell-engaging edge making an acute angle with said small base, and a central hole through said washer ; said washer being housed, when in an operative position, in a recess in said frame part surrounding said bore and with said cell-engaging edge protruding into said housing ; said screw having a shank of lesser diameter than said hole in the washer and a head of greater diameter than said hole.
Claim 5
Dependent Claim
99 words
A timepiece according to claim 1, in which said actuating means comprise a screw threadably engageable in a bore in said frame part adjacent to the periphery of said housing, said screw having a generally cylindrical head comprising a cut-away section which cut-away section is flush with the wall of said housing in a given angular position of said screw when engaged in said bore, the cylindrical lateral surface on the non cut-away part of said head carrying an helical edge which protrudes laterally into said housing for other angular positions of said screw when engaged in said bore.
References Cited (Backward Citations)
US3597913A
Cited
US3608304A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |