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US3678769A
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Eccentric and knee lever drive for mechanical control elements
Assignee: Holzer Patent AG
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Filing: 1970-10-19
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Granted: 1972-07-25
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Expires: 1990-10-19
Abstract
Abstract A device for the gradual movement of a mechanical control element as a cam disk or roller having an energy accumulator that can be charged by an engine and which upon discharge moves the control element by mechanical means.
Inventors
- 👤 Walter K Holzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:29
CPC Classifications
F; F16; F16H; F16H31/00; F16H31/003; F16H31/004; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1508; Y10T74/1511; Y10T74/1526; Y10T74/1553; Y10T74/1555
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
84 words
A device for the gradual movement of a mechanical control element, especially a cam disc, comprising a cocking lever mounted for movement about a pivot point at one end, a pawl drive element connected at one end to said cocking lever for pivotal movement at a predetermined distance from said pivot point, an energy accumulator for the device, means for energizing said accumulator so that, during a discharge of energy, pivotal movement of said pawl drive element is accelerated to move said cam disc.
Claim 2
Independent Claim
84 words
A device for the gradual movement of a mechanical control element, especially a cam disc, comprising a cocking lever mounted for movement about a pivot point at one end, a pawl drive element connected at one end to said cocking lever for pivotal movement at a predetermined distance from said pivot point, an energy accumulator for the device, means for energizing said accumulator so that, during a discharge of energy, pivotal movement of said pawl drive element is accelerated to move said cam disc.
Claim 3
Dependent Claim
28 words
The device according to claim 1 wherein said energy accumulator comprises a spring element fixed at one end and connected to said cocking lever at its other end.
Claim 4
Dependent Claim
26 words
The device according to claim 1 wherein an eccentric disc is provided at said cocking lever one end, said pawl drive member being pivotally connected thereto.
Claim 5
Dependent Claim
23 words
The device according to claim 1 wherein the interconnection of said cocking lever and said pawl drive element constitutes a toggle lever arrangement.
Claim 6
Dependent Claim
28 words
The device according to claim 1 wherein said energy accumulator comprises a spring element fixed at end and cooperating with said pawl drive element at its other end.
References Cited (Backward Citations)
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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 |