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US4169619A Expired / Lapsed US ⏱️ 0.0 years remaining

Portable security lock

Assignee: Individual
•
Filing: 1978-06-19
•
Granted: 1979-10-02
•
Expires: 1998-06-19
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Abstract

Abstract A portable, lightweight security lock for doors comprising an elongate movable abutment member and an elongate catch member pivotally secured thereto. The abutment member has a laterally extending abutment portion for disposition in proximity with the door surface when such door is closed; the elongate catch member has a laterally extending catch portion which is insertable into the latch socket of a door jam. In a preferred embodiment the elongate movable abutment member includes a resilient pad on its forward surface, this to accommodate tolerances and deviations thereof in actual casement and lock installations. The elongate movable abutment member and elongate catch member are provided with inter-cooperating dog and teeth means which inter-engage selectively, depending upon the door installation involved, this so that need not be present pivotal movement between the two members when the movable abutment member is to be released from engagement with the door. Upon longitudinal withdrawal, however, the abutment member is pivotal with respect to the elongate catch member so as to allow for free door opening.

Inventors

  • 👤 James H. McCracken

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 17:34
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/18; E05C19/182; Y; Y10; Y10T; Y10T292/00; Y10T292/37; Y10T292/373; Y10T292/379; Y10T292/391; Y10T292/394

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 153 words
A portable security lock for doors, their latches and latch sockets, including, in combination: first and second individually unitary elongate members mutually disposed in slidable engagement, said elongate members having oppositely and laterally extending forward foot portions, one of said foot portions having adhered thereto a fixed, forwardly facing, resilient abutment pad means for rearwardly biasing said one foot portion and its elongate member when said pad means engages an external, closed door, one of said elongate members being provided with an elongate slot having a series of detent notches, the remaining elongate member having a laterally extending dog slideably disposed in said slot and constructed to be releasably disposed in and, by virtue of said resilient paid means, resiliently pressed against a side of a respective one of said notches, that elongate member provided said resilient pad means having an integral lateral finger tab, and means for securing said elongate members together.
Claim 2
Dependent Claim 153 words
A portable security lock for doors, their latches and latch sockets, including, in combination: first and second individually unitary elongate members mutually disposed in slidable engagement, said elongate members having oppositely and laterally extending forward foot portions, one of said foot portions having adhered thereto a fixed, forwardly facing, resilient abutment pad means for rearwardly biasing said one foot portion and its elongate member when said pad means engages an external, closed door, one of said elongate members being provided with an elongate slot having a series of detent notches, the remaining elongate member having a laterally extending dog slideably disposed in said slot and constructed to be releasably disposed in and, by virtue of said resilient paid means, resiliently pressed against a side of a respective one of said notches, that elongate member provided said resilient pad means having an integral lateral finger tab, and means for securing said elongate members together.
Claim 3
Dependent Claim 19 words
The structure of claim 1 wherein said securing means comprises an elongate member retention abutment contiguous with said dog.
Claim 4
Dependent Claim 21 words
The structure of claim 1 wherein said elongate members are provided with means for relesably securing them in mutually aligned disposition.
Claim 5
Dependent Claim 22 words
The structure of claim 1 wherein said resilient pad means is disposed rearwardly of said foot portion of the remaining elongate member.

References Cited (Backward Citations)

US866681A Cited
US910431A Cited
US1061629A Cited
US1147459A Cited
US1176859A Cited
US1290560A Cited
US1947773A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-10-01 1983-04-02 1983-10-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-10-01 1987-04-02 1987-10-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-10-01 1991-04-02 1991-10-02 $7700.00 Window Closed / Lapsed

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