US4318557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latching mechanism
Assignee: Hartwell Corp
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Filing: 1979-10-09
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Granted: 1982-03-09
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Expires: 1999-10-09
Abstract
Abstract A latching mechanism having a keeper, a mounting bushing, and an engaging member adapted to engage the keeper. A first compression link is adapted to pivot about the mounting bushing and a second compression link is pivotally connected both with the first compression link and the engaging member. A plane between the mounting bushing and the pivotal connection between the engaging member and the second compression link defines a load line. The connection between the first and second compression links is adapted to be moved from an initial or secured position adjacent the engaging member and on one side of the load line to a released or unlatched position spaced apart from the engaging member and on the opposite side of the load line.
Inventors
- 👤 William R. Bourne
- 👤 Raymond E. Harmon
- 👤 Bernard W. Henrichs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:36
CPC Classifications
B; B64; B64D; B64D29/00; B64D29/06; E; E05; E05C; E05C19/00; E05C19/10; E05C19/12; E05C19/14; Y; Y10; Y10S; Y10S292/00; Y10S292/31; Y10T; Y10T292/00; Y10T292/08; Y10T292/0911; Y10T292/0913; Y10T292/0914; Y10T292/0917
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
157 words
A latching mechanism comprising: a keeper; a mounting bushing; an engaging member adapted to engage said keeper; a first compression link for pivoting about said mounting bushing; and a second compression link pivotally connected both with said first compression link at a first moving pivot, and said engaging member at a second moving pivot, wherein a plane between said mounting bushing and said second moving pivot defines a load line and the first moving pivot between said first and second compression links is adapted to be moved from an initial or secured position adjacent said engaging member and/or one side of said load line to a released or unlatched position spaced apart from said engaging member and on the opposite side of said load line, wherein said mounting bushing is in slidable contact with said engaging member and thus controls the movement of the second moving pivot as the engaging member is in engagement with said keeper.
Claim 2
Dependent Claim
157 words
A latching mechanism comprising: a keeper; a mounting bushing; an engaging member adapted to engage said keeper; a first compression link for pivoting about said mounting bushing; and a second compression link pivotally connected both with said first compression link at a first moving pivot, and said engaging member at a second moving pivot, wherein a plane between said mounting bushing and said second moving pivot defines a load line and the first moving pivot between said first and second compression links is adapted to be moved from an initial or secured position adjacent said engaging member and/or one side of said load line to a released or unlatched position spaced apart from said engaging member and on the opposite side of said load line, wherein said mounting bushing is in slidable contact with said engaging member and thus controls the movement of the second moving pivot as the engaging member is in engagement with said keeper.
Claim 3
Dependent Claim
40 words
The mechanism claimed in claim 1 further including a biasing means positioned about said connection between said first and second compression links, urging said mounting bushing away from a handle connected to either of said first or second compression links.
Claim 4
Dependent Claim
28 words
The mechanism claimed in claim 1 where a biasing means is positioned about said first moving pivot and urges said engaging member into sliding contact with said bushing.
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) | 1985-03-08 | 1985-09-07 | 1986-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-08 | 1989-09-07 | 1990-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-08 | 1993-09-07 | 1994-03-09 | $7700.00 | Window Closed / Lapsed |