US4453751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strike plate support system
Assignee: Individual
•
Filing: 1982-02-16
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Granted: 1984-06-12
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Expires: 2002-02-16
Abstract
Abstract A securing mechanism and method for a conventional door frame strike support structure, which substantially increases the holding strength of the strike and mounting assembly. The mechanism comprises two support members that are secured and concealed within the frame jamb structure behind the strike plate in a horizontal position parallel to the body of the strike plate, and with transverse interconnecting threaded means to adjustably secure the strike plate. The final assembly is ready to act with a high degree of mechanical resistance in direct opposition to any external force applied against the door. The strike support system is versatile, being adaptable to various existing designs of strike plates and deadbolt keeper plates and even for different levels of tensile strength.
Inventors
- 👤 William J. Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:55
CPC Classifications
E; E05; E05B; E05B15/00; E05B15/02; E05B15/0205; Y; Y10; Y10T; Y10T292/00; Y10T292/68
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
123 words
A securing mechanism for a doorjamb strike plate or bolt keeper with holes for securing means, the system comprising: (a) A pair of similar elongated strike support members, each provided with: (i) means for being secured within the doorjamb horizontally behind a location where a strike plate or bolt keeper is to be secured and in a plane parallel to that of the body of the strike plate or bolt keeper, and (ii) threaded aperture means through the longitudinal axis of the member; and (b) screw means to pass through the holes of the strike plate or bolt keeper and be threadably engaged by the aperture means to secure the strike plate to the strike support members at the location on the doorjamb.
Claim 2
Dependent Claim
123 words
A securing mechanism for a doorjamb strike plate or bolt keeper with holes for securing means, the system comprising: (a) A pair of similar elongated strike support members, each provided with: (i) means for being secured within the doorjamb horizontally behind a location where a strike plate or bolt keeper is to be secured and in a plane parallel to that of the body of the strike plate or bolt keeper, and (ii) threaded aperture means through the longitudinal axis of the member; and (b) screw means to pass through the holes of the strike plate or bolt keeper and be threadably engaged by the aperture means to secure the strike plate to the strike support members at the location on the doorjamb.
Claim 3
Dependent Claim
70 words
A securing mechanism according to claim 1 wherein the strike support members each consist of an elongated wood screw having a thread section, a head for receiving a driving tool to enable its insertion into its position into the doorjamb, and a straight body section between the head and thread section in which body section the aperture means is transversely centered through the longitudinal axis of the strike support members.
Claim 4
Dependent Claim
19 words
A mechanism according to claim 2 wherein the head is of hexagonal form to receive a hexagonal nut driver.
Claim 5
Dependent Claim
12 words
A mechanism according to claim 2 wherein the body section is cylindrical.
Claim 6
Dependent Claim
43 words
A mechanism according to claim 2 wherein two or more similar threaded apertures are provided in each strike support member, the apertures being spaced from each other in the body section and oriented, with respect to each other's axis, as different angular positions.
Claim 7
Dependent Claim
28 words
A mechanism according to claim 5 wherein two similar apertures are provided in each strike support member, and the axes of the apertures are perpendicular to each other.
Claim 8
Dependent Claim
51 words
A mechanism according to claim 6 wherein the apertures in each strike support member are spaced a distance from each other which distance is relative to the thread pitch of the thread section of that support member whereby the horizontal position apertures, and hence of the strike plate, is closely adjustable.
Claim 9
Dependent Claim
58 words
A mechanism according to claim 1 further provided with adjustment means to fit between the inner surface of the strike plate and the strike support member to provide a surface flush with that of the jamb surface upon which the strike plate is to fit, against which the screw means may tighten the strike plate when in position.
Claim 10
Dependent Claim
21 words
A mechanism according to claim 8 wherein the adjustment means comprises washers through which the screw means fit when in position.
Claim 11
Dependent Claim
13 words
A mechanism according to claim 1 wherein the screw means comprise machine screws.
Claim 12
Dependent Claim
25 words
A mechanism according to claim 1 or 2 further comprising a conventional strike plate comprising a latch receiving hole and vertically spaced screw receiving holes.
References Cited (Backward Citations)
US1869815A
Cited
US2743953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-12 | 1987-12-12 | 1988-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-12 | 1991-12-12 | 1992-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-12 | 1995-12-12 | 1996-06-12 | $7700.00 | Window Closed / Lapsed |