US3679850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch clock
Assignee: Mannesmann VDO AG
•
Filing: 1970-11-16
•
Granted: 1972-07-25
•
Expires: 1990-11-16
Abstract
Abstract A switch clock, comprising a dial train indicating the time, and at least two switching contacts. A cam means actuates the switching contacts. A switch device contains the cam means. A clockwork and a motor, respectively, drive the cam disk of the dial train. An adjusting means is provided for adjusting the switching times. An adjusting disc carries the switching contacts and engages the adjusting means by means of a drive. A rotary switch means comprises a switch shaft provided for adjusting the various operative states of the switch device, and a gear is mounted on the shaft of the rotary switch means and at least directly engages the adjusting disc, wherein the gear is capable of being actuated by means of teeth disposed on a smaller portion of its periphery by turning the adjusting disc.
Inventors
- 👤 Friedrich Arzt
- 👤 Paul Hofert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:51
CPC Classifications
G; G04; G04C; G04C23/00; G04C23/14; G04C23/16
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
126 words
A switch clock, having a time indicating dial train, comprising a switch device including a cam disc, at least two switching contacts, operated by said cam disc, and the latter being adapted to be driven by a clockwork, a setting shaft setting the switching timing of said cam disc, an adjusting disc carrying said switching contacts and engaging said setting shaft by means of a drive, a rotary switch comprising a switch shaft for adjusting the various operative states of said switch device, and a shaft, a gear mounted on said shaft and at least directly engaging said adjusting disc, said gear having at least one tooth over a small part of the periphery, and said rotary switch being operable by rotation of said adjusting disc.
Claim 2
Dependent Claim
126 words
A switch clock, having a time indicating dial train, comprising a switch device including a cam disc, at least two switching contacts, operated by said cam disc, and the latter being adapted to be driven by a clockwork, a setting shaft setting the switching timing of said cam disc, an adjusting disc carrying said switching contacts and engaging said setting shaft by means of a drive, a rotary switch comprising a switch shaft for adjusting the various operative states of said switch device, and a shaft, a gear mounted on said shaft and at least directly engaging said adjusting disc, said gear having at least one tooth over a small part of the periphery, and said rotary switch being operable by rotation of said adjusting disc.
Claim 3
Dependent Claim
24 words
The switch clock, as set forth in claim 1, wherein said rotary switch comprises a two armed shoe sliding over corresponding of said contacts.
Claim 4
Dependent Claim
28 words
The switch clock, as set forth in claim 2, wherein said shoe and said gear engage each other freely rotatably about a small angle relative to each other.
Claim 5
Dependent Claim
21 words
The switch clock, as set forth in claim 1, wherein said gear is rotatably mouNted spring biased in both turning directions.
Claim 6
Dependent Claim
35 words
The switch clock, as set forth in claim 4, wherein said gear is connected to a fixed point by means of a spring, radially applying at the non-toothed portion of the periphery of said gear.
Claim 7
Dependent Claim
38 words
The switch clock, as set forth in claim 1, which includes a disc being secured to said shaft of said rotary switch, and visible in a recess of a dial plate, for indicating the respectively set operative states.
References Cited (Backward Citations)
US2755424A
Cited
US3040227A
Cited
US3096407A
Cited
US3095485A
Cited
US3312925A
Cited
US3225151A
Cited
US3270448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |