Patent US4164857A successfully refreshed from Google Patents.
US4164857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plugless pin tumbler cylinder
Assignee: Individual
•
Filing: 1977-04-07
•
Granted: 1979-08-21
•
Expires: 1997-04-07
Abstract
Abstract A cylinder which does not have a plug but has selectors and cooperating pin tumblers controlled thereby under influence of a key which is thrust rectilinearly into the key way and which selectors are actuated by a bolt or the like.
Inventors
- 👤 Joseph M. Genakis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:57
CPC Classifications
E; E05; E05B; E05B27/00; E05B27/0028; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/752; Y10T70/7531; Y10T70/7757; Y10T70/778; Y10T70/7791; Y10T70/7802
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
181 words
A plugless cylinder lock comprising: a lock housing means defining a plurality of parallel pinways and a keyway communicating therewith; a locking selector rectilinearly movable in said housing between open and closed positions in a direction transverse to said pinways; a pin disposed in each of said pinways and each movable from locking positions to a selective release position by engagement with a properly bitted key in said keyway, said housing means preventing movement of said pins in the direction of movement of said selector, and said pins and said selector being shaped and arranged to engage and prevent said movement of said selector with said pins in said locking positions and to disengage so as to permit said movement of said selector with said pins in said release positions, said pins and said selector being further shaped and arranged to engage in response to movement of said selector out of said open position and thereby prevent said movement of said pins; and means for moving said selector into said open position upon insertion of a proper key in said keyway.
Claim 2
Dependent Claim
181 words
A plugless cylinder lock comprising: a lock housing means defining a plurality of parallel pinways and a keyway communicating therewith; a locking selector rectilinearly movable in said housing between open and closed positions in a direction transverse to said pinways; a pin disposed in each of said pinways and each movable from locking positions to a selective release position by engagement with a properly bitted key in said keyway, said housing means preventing movement of said pins in the direction of movement of said selector, and said pins and said selector being shaped and arranged to engage and prevent said movement of said selector with said pins in said locking positions and to disengage so as to permit said movement of said selector with said pins in said release positions, said pins and said selector being further shaped and arranged to engage in response to movement of said selector out of said open position and thereby prevent said movement of said pins; and means for moving said selector into said open position upon insertion of a proper key in said keyway.
Claim 3
Dependent Claim
32 words
The plugless cylinder of claim 1 wherein said engagement between said pins and said selector in response to movement of said selector out of said closed position occurs along substantially planar surfaces.
Claim 4
Dependent Claim
50 words
The plugless cylinder of claim 2 wherein said selector comprises an elongated body portion and fin portions extending therefrom, each of said pins comprise cylindrical surfaces interrupted by a plurality of spaced apart slots substantially parallel to said fins, and said engagements occur between said fin portions and said slots.
Claim 5
Dependent Claim
17 words
The plugless cylinder of claim 3 wherein said slots extend around the entire periphery of said pins.
Claim 6
Dependent Claim
43 words
The plugless cylinder of claim 3 wherein said slots in each of said pins comprise one slot of a depth that accommodates movement therethrough of said fin portions and other slots of a lesser depth that prevents movement therethrough of said fin portions.
Claim 7
Dependent Claim
23 words
The plugless cylinder of claim 1 wherein said housing retains a pair of said selectors that straddle and engage said plurality of pins.
Claim 8
Dependent Claim
17 words
The plugless cylinder of claim 6 wherein said slots extend around the entire periphery of said pins.
References Cited (Backward Citations)
US1234369A
Cited
US1527336A
Cited
US1758620A
Cited
US2003086A
Cited
US2505494A
Cited
US2620645A
Cited
US3640107A
Cited
US3780548A
Cited
US4006615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-08-20 | 1983-02-19 | 1983-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-08-20 | 1987-02-19 | 1987-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-08-20 | 1991-02-19 | 1991-08-21 | $7700.00 | Window Closed / Lapsed |