US3619019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable length compensating lever latch handle mechansim
Assignee: Collins Radio Co
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Filing: 1969-12-22
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Granted: 1971-11-09
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Expires: 1989-12-22
Abstract
Abstract A cam-lock handle to facilitate insertion, extraction, and holddown functions between a demountable equipment or device and its container or mounting base includes an operational variable pivot point assembly for the handle by means of which the mechanical advantage of the handle may be varied to optimize handle functions and ready adjustment for variations in equipment lengths is permitted.
Inventors
- 👤 Casswell C Hepker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:14
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/46; E05B63/00; E05B63/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
182 words
A cam latching handle mechanism for facilitating translational movement between a first handle carrying member and a second member carrying a locking pin member, said handle comprising arcuate camming lobe means operably engageable in hooklike fashion with said locking pin member, said handle handle carrying a pivot pin extending transverse the direction of said translational movement and received in first pin receiving means fixed to said second member and second receiving means associated with said handle, whereby rotation of said handle member about said pivot pin axis effects a predetermined camming relationship between said handle member and said locking pin member, and adjustment means carried on said handle and in cooperative engagement with said second receiving means for selectively varying the lever arm distance between said handle pivot pin axis and said locking pin member by translating the position of said second pivot pin receiving means along a position axis which is substantially coextensive with the direction of translational movement between said first and second members when the longitudinal axis of said handle is positioned substantially transverse said direction of translational movement.
Claim 2
Dependent Claim
182 words
A cam latching handle mechanism for facilitating translational movement between a first handle carrying member and a second member carrying a locking pin member, said handle comprising arcuate camming lobe means operably engageable in hooklike fashion with said locking pin member, said handle handle carrying a pivot pin extending transverse the direction of said translational movement and received in first pin receiving means fixed to said second member and second receiving means associated with said handle, whereby rotation of said handle member about said pivot pin axis effects a predetermined camming relationship between said handle member and said locking pin member, and adjustment means carried on said handle and in cooperative engagement with said second receiving means for selectively varying the lever arm distance between said handle pivot pin axis and said locking pin member by translating the position of said second pivot pin receiving means along a position axis which is substantially coextensive with the direction of translational movement between said first and second members when the longitudinal axis of said handle is positioned substantially transverse said direction of translational movement.
Claim 3
Dependent Claim
156 words
A mechanism as defined in claim 1 wherein said arcuate camming lobe means comprises first and second camming lobes within the confines of which said locking pin member is receivable, each of said camming lobes being selectively positionable into camming relationship with said locking pin member upon rotation of said handle member about said pivot pin, said first and second camming lobes being formed such that rotation of said handle member in a first direction about said pivot pin effects a communicating relationship between a first one of said camming lobes and said locking pin member to translate said first member in a first direction with respect to said second member and rotation of said handle member in an opposite direction about said pivot pin effects a communicating relationship between the second one of said camming lobes and said locking pin member to translate first member in the opposite direction with respect to said second member.
Claim 4
Dependent Claim
91 words
A mechanism as defined in claim 1 wherein said pivot pin second receiving means comprises a substantially rectangular block slidably confined in a through-slot formed in said handle member said through slot being coextensive with said pivot pin position axis, a lead screw member received in threaded engagement with said block, the longitudinal axis of said lead screw member being coextensive with said pivot pin position axis and means for selectively rotating said lead screw with respect to said handle member to effect translation of said block along said position axis.
Claim 5
Dependent Claim
47 words
A mechanism as defined in claim 3 wherein said means for rotating comprises a torque knob affixed to an operator accessible end of said lead screw member, the application of a predetermined torque to said torque kNob effecting slippage between said knob and said lead screw member.
Claim 6
Dependent Claim
64 words
A mechanism as defined in claim 1 wherein the face of said camming lobe means is formed with a locking pin engaging surface of arcuate cross section having a predetermined radius, said locking pin member being formed with a decreasing radius from the transverse extremes thereof to the central portion to define a spherical radius less than the radius of said camming lobe means.
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) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |