US3724888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring-biased latching detent
Assignee: Micro and Precision Mouldings Cheltenham Ltd
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Filing: 1971-03-24
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Granted: 1973-04-03
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Expires: 1991-03-24
Abstract
Abstract An assembly such as a door catch has two relatively movable members, one of the members having a projecting resilient arm and the other having a ramp-like surface along which the arm travels. The result is that the resilient arm deflects during relative movement of the members in one direction and the flexing of the arm produces a return force acting between the members and in the opposite direction.
Inventors
- 👤 M James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:29
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/06; E05C19/063; E05C19/066; Y; Y10; Y10S; Y10S292/00; Y10S292/38; Y10T; Y10T292/00; Y10T292/08; Y10T292/0876; Y10T292/0878
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
77 words
An assembly of two relatively movable members wherein one of the members has a projecting resilient arm and the other has a concave ramp-like surface along which the arm travels with resultant deflection thereof during relative movement of the members in one direction, said deflection comprising inward flexing of the arm during said movement in said one direction, the flexing of the resilient arm producing a return force acting between the members and in the opposite direction.
Claim 2
Dependent Claim
77 words
An assembly of two relatively movable members wherein one of the members has a projecting resilient arm and the other has a concave ramp-like surface along which the arm travels with resultant deflection thereof during relative movement of the members in one direction, said deflection comprising inward flexing of the arm during said movement in said one direction, the flexing of the resilient arm producing a return force acting between the members and in the opposite direction.
Claim 3
Dependent Claim
77 words
An assembly of two relatively movable members wherein one of the members has a projecting resilient arm and the other has a convex ramp-like surface along which the arm travels with resultant deflection thereof during relative movement of the members in one direction, said deflection comprising outward flexing of the arm during said movement in said one direction, the flexing of the resilient arm producing a return force acting between the members and in the opposite direction.
Claim 4
Dependent Claim
77 words
An assembly of two relatively movable members wherein one of the members has a projecting resilient arm and the other has a convex ramp-like surface along which the arm travels with resultant deflection thereof during relative movement of the members in one direction, said deflection comprising outward flexing of the arm during said movement in said one direction, the flexing of the resilient arm producing a return force acting between the members and in the opposite direction.
Claim 5
Dependent Claim
136 words
A two-part door catch comprising a housing member of generally annular tubular form, an inner catch member slidably mounted telescopically within the housing member, the catch member being retained captive within the housing member and urged to a resting position where it projects from an open end of the housing member which, towards its other end, is formed with an internal curvate ramp-like surface engaged by a projecting resilient arm of the catch member, so that on inward movement of the catch member into the housing member the arm travels along the surface such that the portion thereof in engagement with said ramp-like surface is caused to follow an arcuate path and the resultant flexing of the arm provides a return force acting between the members to urge the catch member back to said resting position.
Claim 6
Dependent Claim
136 words
A two-part door catch comprising a housing member of generally annular tubular form, an inner catch member slidably mounted telescopically within the housing member, the catch member being retained captive within the housing member and urged to a resting position where it projects from an open end of the housing member which, towards its other end, is formed with an internal curvate ramp-like surface engaged by a projecting resilient arm of the catch member, so that on inward movement of the catch member into the housing member the arm travels along the surface such that the portion thereof in engagement with said ramp-like surface is caused to follow an arcuate path and the resultant flexing of the arm provides a return force acting between the members to urge the catch member back to said resting position.
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) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |