US3572063A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tamper-proof seal retaining locks
Assignee: Master Lock Co LLC
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Filing: 1969-09-08
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Granted: 1971-03-23
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Expires: 1989-09-08
Abstract
Abstract For goods or materials which are shipped or stored under seal there is provided a key-actuated lock formed on one wall with a channel plate having an opening therein registering with the keyway of the lock. The channel plate is adapted to hold over the lock keyway and in guarding relation thereto, a portion of a sealing element. As long as the sealing element remains intact and in position it is impossible for a tamperer to gain unauthorized access to the lock keyway. However, if the seal should be removed or broken, thus giving visual evidence of tampering, the lock must, nevertheless, be illegally opened to give a tamperer access to the protected goods, thereby providing double security.
Inventors
- 👤 Daniel J Foote
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:27
CPC Classifications
E; E05; E05B; E05B67/00; E05B67/06; E05B67/22; E05B67/24; E05B39/00; E05B39/02; Y; Y10; Y10T; Y10T70/00; Y10T70/40; Y10T70/413; Y10T70/485; Y10T70/70; Y10T70/7441; Y10T70/7915; Y10T70/7955; Y10T70/80; Y10T70/8027; Y10T70/8216; Y10T70/8243
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
95 words
In a lock having a laminated body with an element of a lock mechanism actuator extending through an end lamination plate of the body in a normally exposed condition, the combination of: a channel plate secured to said body in underlying relation to said end lamination plate and conforming to the latter in size and proportion and having an outwardly offset midportion with an opening therein in outwardly spaced relation to the lock mechanism actuator; and a seal held by the offset midportion of said channel plate in covering relation to the lock mechanism actuator.
Claim 2
Dependent Claim
95 words
In a lock having a laminated body with an element of a lock mechanism actuator extending through an end lamination plate of the body in a normally exposed condition, the combination of: a channel plate secured to said body in underlying relation to said end lamination plate and conforming to the latter in size and proportion and having an outwardly offset midportion with an opening therein in outwardly spaced relation to the lock mechanism actuator; and a seal held by the offset midportion of said channel plate in covering relation to the lock mechanism actuator.
Claim 3
Dependent Claim
43 words
The combination recited in claim 1 wherein the exposed element of the lock mechanism actuator is a keyway and the seal is an elongated strip looped over the offset midportion of said channel plate with the ends of the strip permanently secured together.
Claim 4
Dependent Claim
41 words
The combination recited in claim 1 wherein the lock is a shackle-equipped padlock with the shackle projecting from a wall of the body opposite that formed by said channel plate, the shackle having a tamper resisting guard mounted within its outline.
Claim 5
Dependent Claim
75 words
The combination recited in claim 1 wherein the seal is a bored disc lodged in the opening in the midportion of the channel plate with a U-shaped securing element having one of its legs extended through a bore in said disc and having its other leg transversely underlying the outer face of the offset midportion of said channel plate, with means for securing together the free ends of the legs of said U-shaped securing element.
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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) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |