US3640107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Key-controlled locks
Assignee: Individual
•
Filing: 1969-12-08
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Granted: 1972-02-08
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Expires: 1989-12-08
Abstract
Abstract A key-operated combination lock having a locking latch operated by a pivotable handle. Movably secured to the handle is a slidable bolt control element which constitutes the main closing element. The bolt control element is locked by the penetration of a number of bolt pins through the bolt control element and into perforations which house drive pins of varied sizes in a fixed base. The bolt control element may only be moved after the insertion of a key having a plurality of grooves which coincide with the drive pins into the keyway between the clasp and the fixed frame.
Inventors
- 👤 Noel Litvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:32
CPC Classifications
E; E05; E05B; E05B35/00; E05B35/007; E05B27/00; E05B27/0028; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5296; Y10T70/5319; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/752; Y10T70/7531; Y10T70/778; Y10T70/7791; Y10T70/7842; Y10T70/7859
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
266 words
A key controlled lock having a locking bolt to be controlled by a key having a plurality of grooves of varied predetermined depths comprising, in combination, a fixed base having a channel defined on one side thereof, a keyway and at least three perforations defined nonlinearly within said fixed base, said perforations opening into the keyway and the channel defined in said fixed base, a bolt control element movable with respect to and operatively connected to said bolt and movably secured within said channel and having a plurality of bolt pin receiving bores adapted to correspond to said plurality of perforations when said bolt control element is in locked position, a plurality of bolt pins slidably secured within said bores and a corresponding plurality of driver pins having varied predetermined lengths slidably secured within said perforations such that when said bolt control element is locked, said bolt pins are depressed from said bores into said perforations and said driver pins are biased into contact with the surface of said keyway, such that when said key is inserted in said keyway, said plurality of grooves of varied predetermined depths in said key correspond with each of said driver pins respectively and counterbias each of said driver pins and said bolt pins to cause each juncture between each of sAid bolt pins and said driver pins to be positioned at the interface of said bolt control element and said channel for allowing said bolt control element to be moved in said channel without opposition from said bolt pins or said driver pins and without movement of said key.
Claim 2
Dependent Claim
266 words
A key controlled lock having a locking bolt to be controlled by a key having a plurality of grooves of varied predetermined depths comprising, in combination, a fixed base having a channel defined on one side thereof, a keyway and at least three perforations defined nonlinearly within said fixed base, said perforations opening into the keyway and the channel defined in said fixed base, a bolt control element movable with respect to and operatively connected to said bolt and movably secured within said channel and having a plurality of bolt pin receiving bores adapted to correspond to said plurality of perforations when said bolt control element is in locked position, a plurality of bolt pins slidably secured within said bores and a corresponding plurality of driver pins having varied predetermined lengths slidably secured within said perforations such that when said bolt control element is locked, said bolt pins are depressed from said bores into said perforations and said driver pins are biased into contact with the surface of said keyway, such that when said key is inserted in said keyway, said plurality of grooves of varied predetermined depths in said key correspond with each of said driver pins respectively and counterbias each of said driver pins and said bolt pins to cause each juncture between each of sAid bolt pins and said driver pins to be positioned at the interface of said bolt control element and said channel for allowing said bolt control element to be moved in said channel without opposition from said bolt pins or said driver pins and without movement of said key.
Claim 3
Dependent Claim
64 words
The combination of claim 1 including, means within said bores for biasing said bolt pins against said driver pins such that when said bolt control element is in locked position, said bolt pins forcibly penetrate into said perforations in said base and bias said driver pins against the surface of said keyway to prevent any movement of said bolt control element in said channel.
Claim 4
Dependent Claim
19 words
The apparatus of claim 2 wherein said means for biasing comprise a compression spring in each of said bores.
Claim 5
Dependent Claim
76 words
The combination lock of claim 1 wherein said key is a planar plate having chamfered ends and wherein said grooves defined on one surface of said plate cooperate with said driver pins to determine the operative run of each of said driver pins so that when the key is inserted into the keyway, the juncture between said driver pins and said bolt pins is coplanar with the surface between said bolt control element and said channel.
Claim 6
Dependent Claim
30 words
The apparatus of claim 1 wherein said bolt control element comprises a bar railed in guides as a runner traversing a run from the locked position to the unlocked position.
Claim 7
Dependent Claim
80 words
The apparatus of claim 1 including a lever having an operating handle pivotally secured to said base, a resistance arm coupled to said bolt control element at one end and secured to the pivot end of said operating handle at the other end, and an operating arm having a first end secured to said pivot end and a second end coupled to the bolt, such that when said handle is moved, said control element and said bolt are also moved.
Claim 8
Dependent Claim
41 words
The apparatus as set forth in claim 6 including a secondary bolt for said lock operatively connected to the bolt of said lock such that when the handle is moved and said bolt is operated, said secondary bolt is also operated.
Claim 9
Dependent Claim
16 words
The apparatus of claim 1 wherein said keyway has a rectilinear opening for receiving said key.
Claim 10
Dependent Claim
40 words
The apparatus as set forth in claim 1 wherein said key includes at least one abutment means defined thereon for limiting the penetration of said key in the keyway such that said key may be precisely positioned within the keyway.
Claim 11
Dependent Claim
73 words
The apparatus as set forth in claim 1 including at least nine of the perforations aligned in three columns, at least nine of the bolt pin receiving bores adapted to correspond to said nine perforations when the bolt control element is locked and including at least nine of the bolt pins slidably secured within the bores and at least nine of the driver pins having varied predetermined lengths slidably secured within the perforations.
Claim 12
Dependent Claim
47 words
The apparatus as set forth in claim 1 wherein said key includes a first plurality of grooves on one end of the key and a second plurality of grooves on the other end of said key such that said key may be reversibly inserted in the keyway.
Claim 13
Dependent Claim
18 words
The apparatus as set forth in claim 1 wherein said bolt control element is remote from said bolt.
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) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |