US3901058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High security lock and hasp
Assignee: Individual
•
Filing: 1974-04-01
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Granted: 1975-08-26
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Expires: 1994-04-01
Abstract
Abstract A high security lock to secure the eyes of a hasp and keeper. The lock is formed of a housing of short cylindrical shape and a rear closure plate, in locked breech-lock engagement, which together define a cavity to receive and enclose the hasp and keeper eyes. The housing contains a locking bolt in a transverse trough and contains two lock cores in separate chambers. One core is operable by a key inserted through a front access opening and drives a pivoted lever to actuate the bolt. The other core fits through an opening in the closure plate and blocks breech lock release. The openings and cavities of the housing open to the rear and are shaped to be formed by die cores, so that both the housing and closure may be made as castings requiring a minimum of machining. The lock and the hasp and keeper assembly interact to give high security. The lock encloses and closely embraces the eyes of the hasp and keeper and lies close against the pads of the hasp and keeper. The lock presents a rounded front surface to impede forceful attack, and shroud plates overlying the pads closely surround the rear edge of the lock. The shrouds and plates of the hasp meet those of the keeper at a separation plane offset from that of the eyes and of the door and its jamb.
Inventors
- 👤 Walter E Best
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:13
CPC Classifications
E; E05; E05B; E05B67/00; E05B67/36; Y; Y10; Y10T; Y10T70/00; Y10T70/30; Y10T70/333; Y10T70/40; Y10T70/413; Y10T70/437; Y10T70/439
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
187 words
A lock for locking a hasp eye and keeper eye projecting in adjacent parallel relation from the face of door structure and having aligned transverse shackle-receiving apertures, comprising: a housing having rear openings and a rear closure for such housing, said housing and closure together forming a rearwardopen cavity to receive the projecting hasp and keeper eyes, said housing having a transverse trough-shaped slideway formed in its rear face in intersecting relation with said cavity and rearwardly open to receive a bolt therein, a bolt retained in said slideway by said closure and movable between a locking position across said cavity to lock the eyes therein and a retracted release position, a core chamber formed in said housing for the reception, from the rear, of an actuating lock core having a rotatable key plug, a key opening formed at the front of said chamber to admit a key to said plug, and actuating means connecting the bolt for actuation by said key plug and mounted for assembly from the rear of the housing and enclosure by said closure, and retaining means for securing the closure in place.
Claim 2
Dependent Claim
187 words
A lock for locking a hasp eye and keeper eye projecting in adjacent parallel relation from the face of door structure and having aligned transverse shackle-receiving apertures, comprising: a housing having rear openings and a rear closure for such housing, said housing and closure together forming a rearwardopen cavity to receive the projecting hasp and keeper eyes, said housing having a transverse trough-shaped slideway formed in its rear face in intersecting relation with said cavity and rearwardly open to receive a bolt therein, a bolt retained in said slideway by said closure and movable between a locking position across said cavity to lock the eyes therein and a retracted release position, a core chamber formed in said housing for the reception, from the rear, of an actuating lock core having a rotatable key plug, a key opening formed at the front of said chamber to admit a key to said plug, and actuating means connecting the bolt for actuation by said key plug and mounted for assembly from the rear of the housing and enclosure by said closure, and retaining means for securing the closure in place.
Claim 3
Dependent Claim
50 words
A lock as in claim 1 in which said housing and closure having rotatably-engaged retaining means therebetween for securing the closurE in place, and a blocking element inserted in aligned openings in said housing and closure to prevent relative rotation of the closure and housing to disengage said retaining means.
Claim 4
Dependent Claim
45 words
A lock as in claim 1 in which said actuating means includes a pivoted lever having its free end engaged with the bolt, and a crank engaged therewith and operable by the key plug to swing the lever and thereby advance and retract the bolt.
Claim 5
Dependent Claim
25 words
A lock as in claim 3 in which the lever is mounted and swingable in a shallow cavity formed between the housing and the closure.
Claim 6
Dependent Claim
39 words
A lock as in claim 3 in which said actuating means includes a throw member operable by said key plug and rotatable at the rear of said core chamber and having a crank thereon engaged with said pivoted lever.
Claim 7
Dependent Claim
68 words
A lock as in claim 2 in which said actuating means comprises a lever pivoted to said housing and extending across the rear face thereof into engagement with said bolt, and a throw member actuated by said key plug and forming a crank engaged with said lever to pivot the same and thereby actuate the bolt, said closure overlying the lever and retaining the same in operating position.
Claim 8
Dependent Claim
55 words
A lock as in claim 2 in which said aligned openings in said housing and closure are shaped to receive a retaining lock core, and said blocking element is a lock core inserted therein and having a key-operated retaining lug engageable with a portion of said housing or closure to retain the core in place.
Claim 9
Dependent Claim
55 words
A lock as in claim 6 in which said aligned openings in said housing and closure are shaped to receive a retaining lock core, and said locking element is a lock core inserted therein and having a key-operated retaining lug engageable with a portion of said housing or closure to retain the core in place.
Claim 10
Dependent Claim
107 words
A lock as in claim 7 in which said rotatably-engaged retaining means comprises breech locking lugs on said housing and closure, engageable by limited rotation of the closure from an insertion position to a locked position in the housing, said closure having a projection thereon extending into the housing opening which receives the retaining lock core to form a shoulder therein for engagement by said core-retaining lug, said housing opening being shaped to allow entry of said projection into said opening in insertion position of the closure and swinging movement of the projection therein to its operative position upon rotation of the closure to its locked position.
Claim 11
Dependent Claim
37 words
A lock as in claim 1 in which the openings, cavity, and chambers in the housing are open to the rear so as to be formed by withdrawable cores, and the housing is formed as a casting.
Claim 12
Dependent Claim
37 words
A lock as in claim 9 in which the openings, cavity, and chambers in the housing are open to the rear so as to be formed by withdrawable cores, and the housing is formed as a casting.
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) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |