US3825702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Operating mechanism for twenty four hour cycle digital timer
Assignee: Nidec Precision Corp
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Filing: 1973-01-17
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Granted: 1974-07-23
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Expires: 1993-01-17
Abstract
Abstract A timer mechanism for a clock or the like arranged, in order to have the switch opening and closing operations performed accurately and reliably at preset times, so that a clutch operating member, which is held in operable condition by cooperative action of a timer setting member and clutch cam member, is released by cooperative action of a clutch controlling member rotating being synchronized with the minute shaft of the clock device and of a clutch control transmitting member.
Inventors
- 👤 K Murata
- 👤 K Wakabayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:36
CPC Classifications
G; G04; G04C; G04C23/00; G04C23/14; G04C23/16
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
234 words
A timer mechanism for a clock or the like comprising a body frame, a minute shaft rotatably supported by said body frame, an hour shaft rotatably mounted on said minute shaft, a timer setting member rotatably mounted on said hour shaft and having time graduations engraved on the peripheral surface and also having at least one recess formed on its side face, a clutch cam member mounted on said hour shaft and having at least one protuberance engageable with said recess of said timer setting member formed on its side face, a clutch operating member rotatably supported on said body frame and, engaged with said clutch cam member, a connecting member rotatably supported on said clutch operating member, a switch arranged adjacent to said connecting member and capable of being operated by said connecting member, a connecting piece made of resilient material connected to said connecting member, clutch control transmitting member rotatably supported on said body frame and engageable with said connecting piece, and a clutch controlling member fixedly mounted on said minute shaft and having on the peripheral surface a plural number of notches engageable with said clutch control transmitting member, said switch being operated by said connecting member when said protuberance of said clutch cam member engages with said recess of said timer setting member and said clutch control transmitting member engages with one of said notches of said clutch control member.
Claim 2
Dependent Claim
234 words
A timer mechanism for a clock or the like comprising a body frame, a minute shaft rotatably supported by said body frame, an hour shaft rotatably mounted on said minute shaft, a timer setting member rotatably mounted on said hour shaft and having time graduations engraved on the peripheral surface and also having at least one recess formed on its side face, a clutch cam member mounted on said hour shaft and having at least one protuberance engageable with said recess of said timer setting member formed on its side face, a clutch operating member rotatably supported on said body frame and, engaged with said clutch cam member, a connecting member rotatably supported on said clutch operating member, a switch arranged adjacent to said connecting member and capable of being operated by said connecting member, a connecting piece made of resilient material connected to said connecting member, clutch control transmitting member rotatably supported on said body frame and engageable with said connecting piece, and a clutch controlling member fixedly mounted on said minute shaft and having on the peripheral surface a plural number of notches engageable with said clutch control transmitting member, said switch being operated by said connecting member when said protuberance of said clutch cam member engages with said recess of said timer setting member and said clutch control transmitting member engages with one of said notches of said clutch control member.
Claim 3
Dependent Claim
34 words
A timer mechanism for a clock or the like according to claim 1 wherein said time graduations are provided with ten-minutes intervals and said notches are provided in six in number being equally spaced.
Claim 4
Dependent Claim
21 words
A timer mechanism for a clock or the like according to claim 1 wherein said connecting piece is a plate spring.
Claim 5
Dependent Claim
228 words
A timer mechanism for a clock or the like comprising a body frame, a minute shaft rotatably supported by said body frame, an hour shaft rotatably mounted on said minute shaft, a timer setting member rotatably mounted on said hour shaft and having time graduations engraved on the peripheral surface and also having at least one recess formed on its side face, a clutch cam member mounted on said hour shaft and having at least one protuberance engageable with said recess of said timer setting member formed on its side face, a clutch operating member rotatably supported on said body frame and engaged with said clutch cam member, a switch arranged adjacent to said clutch operating member and capable of being operated by said clutch operating member, a connecting piece made resilient material connected to said clutch operating member, a clutch control transmitting member rotatably supported on said body frame and engageable with said connecting piece, and a clutch controlling member fixedly mounted on said minute shaft and having on the peripheral surface a plural number of notches engageable with said clutch control transmitting member, said switch being operated by said clutch operating member when said protuberance of said clutch cam member engages with said recess of said timer setting member and said clutch control transmitting member engages with one of said notches of said clutch control member.
Claim 6
Dependent Claim
228 words
A timer mechanism for a clock or the like comprising a body frame, a minute shaft rotatably supported by said body frame, an hour shaft rotatably mounted on said minute shaft, a timer setting member rotatably mounted on said hour shaft and having time graduations engraved on the peripheral surface and also having at least one recess formed on its side face, a clutch cam member mounted on said hour shaft and having at least one protuberance engageable with said recess of said timer setting member formed on its side face, a clutch operating member rotatably supported on said body frame and engaged with said clutch cam member, a switch arranged adjacent to said clutch operating member and capable of being operated by said clutch operating member, a connecting piece made resilient material connected to said clutch operating member, a clutch control transmitting member rotatably supported on said body frame and engageable with said connecting piece, and a clutch controlling member fixedly mounted on said minute shaft and having on the peripheral surface a plural number of notches engageable with said clutch control transmitting member, said switch being operated by said clutch operating member when said protuberance of said clutch cam member engages with said recess of said timer setting member and said clutch control transmitting member engages with one of said notches of said clutch control member.
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) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |