US3736016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock guard for trailer doors
Assignee: Individual
•
Filing: 1971-12-06
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Granted: 1973-05-29
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Expires: 1991-12-06
Abstract
Abstract The lock guard includes an enclosure secured to one of pivoted double doors on a trailer. The enclosure projects beyond the edge of the one door and encloses a pair of hasps when the doors lie in a closed position. An access opening is provided through the bottom wall of the enclosure to facilitate locking and unlocking a padlock joining the hasps. A second opening is provided through the upper wall of the enclosure in registry with the bottom access opening. The standard locking cam rod for trailer doors extends through these openings.
Inventors
- 👤 C G Garvey
- 👤 H Mccoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:13
CPC Classifications
E; E05; E05B; E05B67/00; E05B67/38; Y; Y10; Y10S; Y10S292/00; Y10S292/29; Y10T; Y10T292/00; Y10T292/31; Y10T70/00; Y10T70/40; Y10T70/413; Y10T70/487; Y10T70/493; Y10T70/498
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
136 words
A lock guard for use on a vehicle having a swinging door with a generally vertically extending rod cooperable with keepers to retain the door in a closed position, the door including a lock cooperable with a pair of locking members to lock the door in the closed position comprising: an enclosure having top, bottom, front and end walls, means for securing said enclosure to the door in position substantially overlying the locking members and lock, said enclosure having an opening through one of said walls providing for access to the lock within the enclosure and a second opening through another of said walls for receiving the retaining rod, said openings being sized to limit access within said enclosure such that the lock cannot be forced by insertion of levers or the like through said opening.
Claim 2
Dependent Claim
136 words
A lock guard for use on a vehicle having a swinging door with a generally vertically extending rod cooperable with keepers to retain the door in a closed position, the door including a lock cooperable with a pair of locking members to lock the door in the closed position comprising: an enclosure having top, bottom, front and end walls, means for securing said enclosure to the door in position substantially overlying the locking members and lock, said enclosure having an opening through one of said walls providing for access to the lock within the enclosure and a second opening through another of said walls for receiving the retaining rod, said openings being sized to limit access within said enclosure such that the lock cannot be forced by insertion of levers or the like through said opening.
Claim 3
Dependent Claim
41 words
A lock guard according to claim 1 wherein said first and second openings are located in the respective vertically spaced walls of said enclosure in vertical registry one with the other whereby the rod is receivable through both of said openings.
Claim 4
Dependent Claim
21 words
A lock guard according to claim 1 wherein said securing means includes a pair of angle brackets welded to said enclosure.
Claim 5
Dependent Claim
17 words
A lock guard according to claim 2 wherein said second opening is smaller than said first opening.
Claim 6
Dependent Claim
51 words
A lock guard according to claim 1 in combination with said vehicle, said vehicle mounting said swinging door and said rod, said locking members comprising a pair of hasps respectively secured to said swinging door and said vehicle, said enclosure encompassing said hasps when said door lies in a closed position.
Claim 7
Dependent Claim
76 words
A lock guard according to claim 5 wherein said vehicle has a second swinging door cooperable with said first mentioned door, the other of said hasps being carried by said second door, said enclosure being carried by said first door and projecting beyond its edge to overlie said second door, the projecting portion of said enclosure being open on its rear side to receive said other hasp when said doors are swung to a closed position.
Claim 8
Dependent Claim
36 words
A lock guard according to claim 1 wherein said access opening is no greater than 12 square inches with a dimension thereof from one side of the opening to the other being at least 3 inches.
Claim 9
Dependent Claim
135 words
A lock guard for use on a vehicle having a door and a lock cooperable with a pair of locking members carried by the vehicle frame and the door respectively for locking the door to the frame in the closed position comprising: an enclosure having top, bottom, front and end walls, meaNs for securing said enclosure to one of the door and vehicle frame in position substantially overlying the locking members and lock, said enclosure having an opening through one of said walls providing for access to the lock within the enclosure and a second opening through another of said walls for receiving one of the locking members, said openings being sized to limit access within said enclosure such that the lock cannot be forced by insertion of levers or the like through said opening.
Claim 10
Dependent Claim
135 words
A lock guard for use on a vehicle having a door and a lock cooperable with a pair of locking members carried by the vehicle frame and the door respectively for locking the door to the frame in the closed position comprising: an enclosure having top, bottom, front and end walls, meaNs for securing said enclosure to one of the door and vehicle frame in position substantially overlying the locking members and lock, said enclosure having an opening through one of said walls providing for access to the lock within the enclosure and a second opening through another of said walls for receiving one of the locking members, said openings being sized to limit access within said enclosure such that the lock cannot be forced by insertion of levers or the like through said opening.
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) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |