US4416087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door frame reinforcer
Assignee: Individual
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Filing: 1981-09-29
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Granted: 1983-11-22
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Expires: 2001-09-29
Abstract
Abstract A door jamb reinforcer is disclosed which comprises at least one, and preferably two or more, reinforcing rods which are positioned internally along the depth of a door jamb adjacent the area of the bolt receiver or striker plate. The rods are used in conjunction with a brace bar which is positioned adjacent the striker plate, and extends above and below it on the edge of the door jamb. With the use of the bar and reinforcing rods of this invention, a door jamb's shear and tensile strength is increased to prevent the jamb from being splintered and broken during a potential forced entry.
Inventors
- 👤 Paritosh K. Ghatak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:53
CPC Classifications
E; E05; E05B; E05B15/00; E05B15/02; E05B15/0205; E06; E06B; E06B1/00; E06B1/04; E06B1/52; E06B5/00; E06B5/10; E06B5/11; E06B5/113; Y; Y10; Y10T; Y10T292/00; Y10T292/79
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
In a door frame, including, generally, a door jamb including a stop attached to an upright stud, and a striker plate or other bolt receiver means on said jamb, jamb reinforcing means comprising: (a) a rigid brace bar located longitudinally proximate the edge of said jamb adjacent said bolt receiver; and (b) at least two reinforcing rods positioned through said brace bar transversely into said jamb at a generally right angle thereto, said rods being of a length sufficient to span said jamb for a distance about at least two thirds the depth of the door frame; and, (c) nuts, one each mounted on said interior rod ends.
Claim 2
Dependent Claim
108 words
In a door frame, including, generally, a door jamb including a stop attached to an upright stud, and a striker plate or other bolt receiver means on said jamb, jamb reinforcing means comprising: (a) a rigid brace bar located longitudinally proximate the edge of said jamb adjacent said bolt receiver; and (b) at least two reinforcing rods positioned through said brace bar transversely into said jamb at a generally right angle thereto, said rods being of a length sufficient to span said jamb for a distance about at least two thirds the depth of the door frame; and, (c) nuts, one each mounted on said interior rod ends.
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) | 1986-11-21 | 1987-05-23 | 1987-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-21 | 1991-05-23 | 1991-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-21 | 1995-05-23 | 1995-11-22 | $7700.00 | Window Closed / Lapsed |