Patent US2019395A successfully refreshed from Google Patents.
Patent US3935939A successfully refreshed from Google Patents.
US4455093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Timer mechanism for rental equipment
Assignee: Individual
•
Filing: 1982-08-25
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Granted: 1984-06-19
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Expires: 2002-08-25
Abstract
Abstract A controlling device adapted particularly for use with rental equipment wherein it is desired to control or limit the time of operation of the rented equipment. The unit comprises a spring-wound motor which will wind down upon expiration of the rental time and cause a switch to open to thus cause a cessation of operation of the rented equipment. A key is employed for effecting the rotation of one of a plurality of arms which will in turn actuate an arm extending from a counting mechanism which will indicate the amount of time the rented equipment has been previously paid for by the rentor of the equipment.
Inventors
- 👤 Brenda R. Bowen
- 👤 Gaylon D. Griffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:05
CPC Classifications
G; G04; G04F; G04F3/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
134 words
A timer mechanism for rental equipment comprising a housing for said timer mechanism, a support plate mounted in said housing, a spring operated timer mechanism mounted on said support plate, a shaft extending from said timer mechanism, a rotor mounted for rotation on said shaft, a plurality of arms mounted for rotation with said rotor, an indicator mounted in said housing, a counter arm mounted on said indicator, a partially hollow key adapted to extend over said shaft, said rotor traveling downwardly along said shaft upon application of a downward force on said key, said arms on said rotor engaging said counter arm on said indicator when said rotor is in a depressed position and upon rotation of said key, said indicator will indicate the time interval for which the equipment has been rented.
Claim 2
Dependent Claim
134 words
A timer mechanism for rental equipment comprising a housing for said timer mechanism, a support plate mounted in said housing, a spring operated timer mechanism mounted on said support plate, a shaft extending from said timer mechanism, a rotor mounted for rotation on said shaft, a plurality of arms mounted for rotation with said rotor, an indicator mounted in said housing, a counter arm mounted on said indicator, a partially hollow key adapted to extend over said shaft, said rotor traveling downwardly along said shaft upon application of a downward force on said key, said arms on said rotor engaging said counter arm on said indicator when said rotor is in a depressed position and upon rotation of said key, said indicator will indicate the time interval for which the equipment has been rented.
Claim 3
Dependent Claim
21 words
The structure recited in claim 1 wherein a spring means is interposed between said spring operated timer mechanism and said rotor.
Claim 4
Dependent Claim
23 words
The structure recited in claim 1 wherein said housing is mounted within the casing surrounding some of the components of the rental equipment.
Claim 5
Dependent Claim
14 words
The structure recited in claim 1 wherein a detent is provided on said rotor.
Claim 6
Dependent Claim
27 words
The structure recited in claim 4 wherein said key is provided with a projection for engaging with said detent when said rotor is in a depressed position.
References Cited (Backward Citations)
US2415911A
Cited
US2679302A
Cited
FR1138328A
Cited
US3390519A
Cited
US4205520A
Cited
US4287964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-19 | 1987-12-19 | 1988-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-19 | 1991-12-19 | 1992-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-19 | 1995-12-19 | 1996-06-19 | $7700.00 | Window Closed / Lapsed |