US4383709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-shim safety device for preventing wrongful disengagement of door latches
Assignee: Holiday Inns Inc
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Filing: 1980-06-19
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Granted: 1983-05-17
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Expires: 2000-06-19
Abstract
Abstract Improved safety device for installation on door jambs in hotels, motels and the like to prevent the use of shim-type devices for unauthorized entry into guest rooms, wherein the device comprises a right angled strip of metal, to be secured to the door jamb opposite the free end of the door when the door is in the closed position, the device having a portion adapted to lap against the outer side of the door, so as to provide maximum resistance to insertion of a shim or similar article between door and lapped portion, thus preventing penetration far enough to disengage the latch bolt from the striker plate aperture in which it is engaged in the normal, locked position.
Inventors
- 👤 Thomas O. Ronan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:34
CPC Classifications
E; E05; E05B; E05B17/00; E05B17/20; E05B17/2003; Y; Y10; Y10T; Y10T292/00; Y10T292/68; Y10T292/79
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
143 words
In combination with structure defining a jamb and stop rail for a door, guard means to prevent insertion of shim-like articles between the jamb, rail and door, said guard device comprising an elongated strip of relatively rigid material having a substantially planar, longitudinal face interposed between first and second longitudinal margins, one of said margins having integral means for firm attachment to said jamb, the other of said margins having an integral longitudinal extension with a free edge extending lengthwise thereof, said extension being contoured to form a bulge-like border with said free edge being generally in-turned, said a first layer of foam-like resilient material affixed to said face to be compressed when said device is mounted on said jamb and the door is closed, and a second layer of foam-like resilient material affixed to the jamb in juxtaposition with said first layer.
Claim 2
Dependent Claim
143 words
In combination with structure defining a jamb and stop rail for a door, guard means to prevent insertion of shim-like articles between the jamb, rail and door, said guard device comprising an elongated strip of relatively rigid material having a substantially planar, longitudinal face interposed between first and second longitudinal margins, one of said margins having integral means for firm attachment to said jamb, the other of said margins having an integral longitudinal extension with a free edge extending lengthwise thereof, said extension being contoured to form a bulge-like border with said free edge being generally in-turned, said a first layer of foam-like resilient material affixed to said face to be compressed when said device is mounted on said jamb and the door is closed, and a second layer of foam-like resilient material affixed to the jamb in juxtaposition with said first layer.
Claim 3
Dependent Claim
13 words
The combination of claim 1 wherein said first layer comprises an adhesive foam.
Claim 4
Dependent Claim
153 words
In combination with structure defining a door jamb and stop rail for receiving a door wherein said jamb has a door end confronting face and said rail has a door side confronting face, anti-shim means for preventing insertion of shim-like articles between said door, jamb and rail, said anti-shim means comprising: an elongated strip of relatively rigid material that includes a smooth planar face portion and a longitudinal bulge-like portion forming a longitudinal border thereof, said strip being rigidly connected to said structure with said face portion extending in perpendicular relation to said end confronting face beyond said rail and in confronting relation to said door side, said bulge-like portion being integral of said planar face portion and having a surface region disposed slightly out of the plane of said planar face portion to be engageable with said door side prior to any engagement between said door side and said planar face portion.
Claim 5
Dependent Claim
153 words
In combination with structure defining a door jamb and stop rail for receiving a door wherein said jamb has a door end confronting face and said rail has a door side confronting face, anti-shim means for preventing insertion of shim-like articles between said door, jamb and rail, said anti-shim means comprising: an elongated strip of relatively rigid material that includes a smooth planar face portion and a longitudinal bulge-like portion forming a longitudinal border thereof, said strip being rigidly connected to said structure with said face portion extending in perpendicular relation to said end confronting face beyond said rail and in confronting relation to said door side, said bulge-like portion being integral of said planar face portion and having a surface region disposed slightly out of the plane of said planar face portion to be engageable with said door side prior to any engagement between said door side and said planar face portion.
Claim 6
Dependent Claim
18 words
The combination of claim 3 wherein said jamb and rail include recessed regions for receiving said strip .
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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) | 1986-05-16 | 1986-11-15 | 1987-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-16 | 1990-11-15 | 1991-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-16 | 1994-11-15 | 1995-05-17 | $7700.00 | Window Closed / Lapsed |