Patent US3790726A successfully refreshed from Google Patents.
US3790726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cam operated electrical timer assembly with improved contact and associated peripheral rib cam
Assignee: Duracell Inc USA
•
Filing: 1972-06-12
•
Granted: 1974-02-05
•
Expires: 1992-06-12
Abstract
Abstract A timer switch utilizing a modular stacked configuration and a switching arrangement wherein one each of a pair of switch blades are responsive to a pair of cam surfaces separated by a peripheral rib of a single cam.
Inventors
- 👤 W Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:52
CPC Classifications
G; G04; G04F; G04F3/00; G04F3/06
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
40 words
A timer according to claim 1 wherein said motor is disc shaped and said gear train and switch are each substantially enclosed in a disc shaped housing to provide a motor disc, a gear train disc, and a switch disc.
Claim 2
Dependent Claim
25 words
A timer switch according to claim 2 wherein said motor disc, said gear train disc and said switch disc are axialy stacked and fastened together.
Claim 3
Dependent Claim
30 words
A timer according to claim 3 wherein said discs are stacked together to provide an assembly, having a height which is less than that of a diameter of said discs.
Claim 4
Dependent Claim
16 words
A timer according to claim 2 wherein said switch disc is thinner than said motor disc.
Claim 5
Dependent Claim
17 words
A timer according to claim 2 wherein said switch disc is thinner than said gear train disc.
References Cited (Backward Citations)
US1645720A
Cited
US3478181A
Cited
US3652814A
Cited
US3553720A
Cited
US3679988A
Cited
US3699277A
Cited
US3700839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |