US3780548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical coded trick lock
Assignee: GL DIRECTZIA KBUMP PRI SGNS
•
Filing: 1972-10-30
•
Granted: 1973-12-25
•
Expires: 1992-10-30
Abstract
Abstract The present invention relates to a lock with a plurality of working cy1inders, either a relatively small or large number, controlled by a punched tape through a thin slit, or by a key that is dissembled into its elemental parts, which lock is safe against any of the contemporary methods of forced unlocking.
Inventors
- 👤 I Anastasov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:07
CPC Classifications
E; E05; E05B; E05B35/00; E05B35/007; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/752; Y10T70/7531
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
91 words
A mechanical coded trick lock, wherein there is provided a magazine having a base with a plurality of holes and having placed therein pins, said pins being supported by springs whose opposite ends lay on a grating, and wherein under said magazine a coding block is mounted, including an upper matrix, lower matrix and the grid located between the two matrixes, said plurality of holes of the coding block containing cylinders supported by the springs whereby the mechanical coded trick lock is brOught into operation by inserting into it a key.
Claim 2
Dependent Claim
91 words
A mechanical coded trick lock, wherein there is provided a magazine having a base with a plurality of holes and having placed therein pins, said pins being supported by springs whose opposite ends lay on a grating, and wherein under said magazine a coding block is mounted, including an upper matrix, lower matrix and the grid located between the two matrixes, said plurality of holes of the coding block containing cylinders supported by the springs whereby the mechanical coded trick lock is brOught into operation by inserting into it a key.
Claim 3
Dependent Claim
33 words
A mechanical coded trick lock of claim 1, wherein the slits of said grid are narrower than the diameters of said cylinders and wider than the diameter of the necks of said cylinders.
Claim 4
Dependent Claim
17 words
A mechanical coded trick lock of claim 1, wherein the necks of the blocking cylinders are upwards.
Claim 5
Dependent Claim
21 words
A mechanical coded trick lock of claim 1, wherein said key is a plate with punched holes, forming a code combination.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |