Patent US3728511A successfully refreshed from Google Patents.
US3728511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control with rotor and shaft assembly
Assignee: Duracell Inc USA
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Filing: 1972-01-31
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Granted: 1973-04-17
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Expires: 1992-01-31
Abstract
Abstract A control having a rotor and shaft assembly anchored together to prevent axial separation and relative rotation between the shaft and the rotor.
Inventors
- 👤 L George
- 👤 E Hauenstine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:17
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/14
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
66 words
In a control means wherein electrical contacts carried by a rotor engage resistance paths upon rotation of said rotor; a means coupling said rotor to a shaft means comprising: fluke anchoring means carried by said shaft means engaging a shaft retaining cavity in said rotor and displacing at least a portion thereof so as to axially retain said fluke anchoring means within said shaft retaining cavity.
Claim 2
Dependent Claim
66 words
In a control means wherein electrical contacts carried by a rotor engage resistance paths upon rotation of said rotor; a means coupling said rotor to a shaft means comprising: fluke anchoring means carried by said shaft means engaging a shaft retaining cavity in said rotor and displacing at least a portion thereof so as to axially retain said fluke anchoring means within said shaft retaining cavity.
Claim 3
Dependent Claim
18 words
A control means according to claim 1 wherein said shaft retaining cavity is a bore of said rotor.
Claim 4
Dependent Claim
20 words
A control means according to claim 1 wherein said fluke anchoring means includes a flared section of said shaft means.
Claim 5
Dependent Claim
19 words
In a control means according to claim 3 wherein said flared section of said shaft means is a cone.
Claim 6
Dependent Claim
27 words
In a control means according to claim 3 wherein said flared section terminates in a sharp step providing a resistance of axial movement in a predetermined direction.
Claim 7
Dependent Claim
20 words
In a control means according to claim 1 wherein said displacement of said shaft retaining cavity is by cold flow.
Claim 8
Dependent Claim
26 words
In a control means according to claim 1 wherein said rotor is a plastic material which tends to return to its prior condition upon said displacement.
Claim 9
Dependent Claim
35 words
In a control means according to claim 1 wherein said shaft retaining cavity includes flat portions cooperating with corresponding flat portions of said shaft means to prevent relative rotation between said rotor and shaft means.
Claim 10
Dependent Claim
27 words
In a control means according to claim 2 wherein said shaft means further includes a bearing head means at one end thereof and extending beyond said bore.
Claim 11
Dependent Claim
84 words
In a control means wherein electrical contacts carried by a rotor engage resistance paths upon rotation of said rotor; a means coupling said rotor to a shaft means comprising; fluke anchoring means carried by said shaft means engaging a shaft retaining cavity in said rotor and displacing at least a portion thereof so as to axially retain said fluke anchoring means within said cavity, and a head at one end thereof extending beyond a bore of said rotor adjacent a face of said rotor.
Claim 12
Dependent Claim
84 words
In a control means wherein electrical contacts carried by a rotor engage resistance paths upon rotation of said rotor; a means coupling said rotor to a shaft means comprising; fluke anchoring means carried by said shaft means engaging a shaft retaining cavity in said rotor and displacing at least a portion thereof so as to axially retain said fluke anchoring means within said cavity, and a head at one end thereof extending beyond a bore of said rotor adjacent a face of said rotor.
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) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |