US4684160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door security device
Assignee: Individual
•
Filing: 1985-08-14
•
Granted: 1987-08-04
•
Expires: 2005-08-14
Abstract
Abstract A door security device (1) consisting of a substantially trapezoidal plate (4) residing parallel to the plane of the door and an integrally formed lip (6) which is permanently affixed to door frame structural member (2). A door strike reinforcement tube (10) extends perpendicularly from plate (4) and is aligned with door lock striker (25) such that any force applied to the door (15) is resisted by the entire plate reinforcing device. A plurality of strike plate reinforcement extensions (10a) may also be used with multiple lock mechanisms.
Inventors
- 👤 Gordon J. Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:53
CPC Classifications
E; E05; E05B; E05B15/00; E05B15/02; E05B15/0205; Y; Y10; Y10T; Y10T292/00; Y10T292/68
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
186 words
A method of securing a door which resides along the same plane as the adjacent wall, comprising the steps of: (a) affixing a plate to a wall support member adjacent to the door, the plate being formed as a trapezoid having a short parallel side, the plate having a lip formed integrally along the short parallel side; (b) attaching the lip to the wall by means of threaded fasteners passing through mounting holes within the lip; (c) affixing a striker channel to the plate, the striker channel being formed as a polyhedron, the polyhedron extending perpendicularly from the plate such that the striker channel is aligned with an existing strike plate which mates with an existing door lock plunger, the striker channel having a length sufficient to permit the strike plate to be interconnected with the plate, the plate being attached to a wall support member, the wall support member also serving as the foundation for the door jamb; and (d) closing the door such that an existing lock plunger passes through an existing strike plate in an existing door jamb, thereby engaging the striker channel.
Claim 2
Independent Claim
186 words
A method of securing a door which resides along the same plane as the adjacent wall, comprising the steps of: (a) affixing a plate to a wall support member adjacent to the door, the plate being formed as a trapezoid having a short parallel side, the plate having a lip formed integrally along the short parallel side; (b) attaching the lip to the wall by means of threaded fasteners passing through mounting holes within the lip; (c) affixing a striker channel to the plate, the striker channel being formed as a polyhedron, the polyhedron extending perpendicularly from the plate such that the striker channel is aligned with an existing strike plate which mates with an existing door lock plunger, the striker channel having a length sufficient to permit the strike plate to be interconnected with the plate, the plate being attached to a wall support member, the wall support member also serving as the foundation for the door jamb; and (d) closing the door such that an existing lock plunger passes through an existing strike plate in an existing door jamb, thereby engaging the striker channel.
Claim 3
Dependent Claim
174 words
A door security device comprising a plate affixed to a wall support member adjacent to a door which resides along the same plane as the wall, the plate being formed as a traperzoid having a short parallel side, the plate having a lip formed integrally along the short parallel side; the lip being attached to the wall by means of threaded fasteners passing through mounting holes within the lip; a striker channel affixed to the plate, the striker channel being formed as a polyhedron, the polyhedron extending perpendicularly from the plate such that the striker channel is aligned with a strike plate which mates with an existing door lock plunger, the striker channel having a length sufficient to permit the strike plate to be interconnected with the plate, the plate being attached to a wall support member, the wall support member also serving as the foundation door the door jamb; and wherein, when the door is closed, said lock plunger passes through said strike plate in said door jamb, thereby engaging the striker channel.
Claim 4
Dependent Claim
174 words
A door security device comprising a plate affixed to a wall support member adjacent to a door which resides along the same plane as the wall, the plate being formed as a traperzoid having a short parallel side, the plate having a lip formed integrally along the short parallel side; the lip being attached to the wall by means of threaded fasteners passing through mounting holes within the lip; a striker channel affixed to the plate, the striker channel being formed as a polyhedron, the polyhedron extending perpendicularly from the plate such that the striker channel is aligned with a strike plate which mates with an existing door lock plunger, the striker channel having a length sufficient to permit the strike plate to be interconnected with the plate, the plate being attached to a wall support member, the wall support member also serving as the foundation door the door jamb; and wherein, when the door is closed, said lock plunger passes through said strike plate in said door jamb, thereby engaging the striker channel.
Claim 5
Dependent Claim
29 words
The door security device of claim 2, wherein the striker channel is mounted substantially perpendicular to the flat plate, the striker channel having a length of approximately 11/2 inches.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-03 | 1991-02-02 | 1991-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-03 | 1995-02-02 | 1995-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-03 | 1999-02-02 | 1999-08-04 | $7700.00 | Window Closed / Lapsed |