US3695140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cottering device
Assignee: FOWLER KNOBBE AND MARTENS
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Filing: 1970-03-23
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Granted: 1972-10-03
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Expires: 1990-03-23
Abstract
Abstract A cottering device for securing elements on a shaft made of a single length of resilient material formed to a circular shape with a diametrical straight portion extending from one extremity of the circular portion and intersecting the circular portion at a point on the periphery opposite the extremity essentially on the line of the diameter of the circle. Provision is made for rendering the device unsusceptible to being dislodged by vibration or pressure from the elements secured by the device, without the need for permanent bending of the device to lock it in place.
Inventors
- 👤 Robert L Noble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:20
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/02; F16B39/10; F16B21/00; F16B21/10; F16B21/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
234 words
An apparatus for securing elements on bored shafts comprising: a shaft having a bore therethrough adjacent one end of said shaft; and a cottering device, formed from a single length of resilient material, comprising: a portion formed to describe the periphery of a geometrical surface and capable of circumscribing said shaft; a unitary straight portion extending from one extremity of said geometrical portion, intersecting with and extending past said geometrical portion at a point on the periphery of said geometrical portion opposite said one extremity, and terminating in a free end portion; means for allowing said geometrical portion to pass over said one end of said shaft during insertion of said unitary straight portion into said bore; and means for allowing said geometrical portion to pass from one side of said free end portion of said unitary straight portion entirely to the opposite side of said free end portion after said unitary straight portion is inserted through the bore of said shaft, for locking said cottering device on said bored shaft with said geometrical portion interposed between said free end portion and the elements to be secured, said means comprising, in Combination, the resilience of said geometrical portion and the shortness of said diametrical portion, said resilience returning said geometrical portion to a circumscribing relationship with said bored shaft after said geometrical portion has passed to said opposite side of said free end portion.
Claim 2
Independent Claim
234 words
An apparatus for securing elements on bored shafts comprising: a shaft having a bore therethrough adjacent one end of said shaft; and a cottering device, formed from a single length of resilient material, comprising: a portion formed to describe the periphery of a geometrical surface and capable of circumscribing said shaft; a unitary straight portion extending from one extremity of said geometrical portion, intersecting with and extending past said geometrical portion at a point on the periphery of said geometrical portion opposite said one extremity, and terminating in a free end portion; means for allowing said geometrical portion to pass over said one end of said shaft during insertion of said unitary straight portion into said bore; and means for allowing said geometrical portion to pass from one side of said free end portion of said unitary straight portion entirely to the opposite side of said free end portion after said unitary straight portion is inserted through the bore of said shaft, for locking said cottering device on said bored shaft with said geometrical portion interposed between said free end portion and the elements to be secured, said means comprising, in Combination, the resilience of said geometrical portion and the shortness of said diametrical portion, said resilience returning said geometrical portion to a circumscribing relationship with said bored shaft after said geometrical portion has passed to said opposite side of said free end portion.
Claim 3
Dependent Claim
27 words
An apparatus as defined in claim 1 wherein said portion formed to describe the periphery of a geometrical surface circumscribes a 360* arc of said bored shaft.
Claim 4
Dependent Claim
50 words
An apparatus as defined in claim 2 additionally comprising: means secured to the other extremity of said geometrical portion for removably attaching said other extremity to said unitary straight portion near said one extremity of said geometrical portion to prohibit said geometrical portion for inadvertently passing over said straight portion.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |