US4154014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetically actuable safety apparatus for preventing unauthorized actuation of a touch-operable device
Assignee: Individual
•
Filing: 1977-03-24
•
Granted: 1979-05-15
•
Expires: 1997-03-24
Abstract
Abstract An apparatus for selectively blocking movement of a part of a device employing said apparatus which is particularly useful in preventing the unauthorized firing of a weapon or removal of screw caps or operation of other touch actuated devices. The apparatus typically comprises a magnetically actuable member mounted to a resilient material which material is mounted to the device for selectively disposing the magnetically actuable member in a conflicting relationship for blocking movement of the part. Magnetic means is provided from without the device and juxtaposed the magnetically-actuable member for attracting or repelling the member out of the blocking relationship with the part whereby the part is free to move.
Inventors
- 👤 Joseph E. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:39
CPC Classifications
F; F41; F41A; F41A17/00; F41A17/06; F41A17/063
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
88 words
A safety apparatus for preventing the unauthorized operation of a weapon having a movable part, which apparatus comprises: a spring having a first end secured to said weapon; a magnetically actuable member disposed on the second end of said spring, said spring biasing said magnetically actuable member in a conflicting relationship with said part for blocking movement of said part; and magnetic means from without said weapon for overcoming the bias of said spring thereby deflecting said magnetically actuable member so that said part is free to move.
Claim 2
Dependent Claim
88 words
A safety apparatus for preventing the unauthorized operation of a weapon having a movable part, which apparatus comprises: a spring having a first end secured to said weapon; a magnetically actuable member disposed on the second end of said spring, said spring biasing said magnetically actuable member in a conflicting relationship with said part for blocking movement of said part; and magnetic means from without said weapon for overcoming the bias of said spring thereby deflecting said magnetically actuable member so that said part is free to move.
Claim 3
Dependent Claim
29 words
An apparatus as in claim 1 further characterized by said magnetic means being formed in the shape of a ring to be worn by the user of said weapon.
Claim 4
Dependent Claim
19 words
An apparatus as in claim 2 further characterized by said ring being operative to repel said magnetically actuable member.
Claim 5
Dependent Claim
19 words
An apparatus as in claim 2 further characterized by said ring being operative to attract said magnetically actuable member.
Claim 6
Dependent Claim
14 words
An apparatus as in claim 1 further characterized by said weapon comprising a pistol.
Claim 7
Dependent Claim
29 words
An apparatus as in claim 5 further characterized by said magnetic means being formed in the shape of a ring to be worn by the user of said pistol.
Claim 8
Dependent Claim
14 words
An apparatus as in claim 1 further characterized by said weapon being shoulder mountable.
Claim 9
Dependent Claim
43 words
An apparatus as in claim 1 further characterized by said weapon having a trigger and a cylinder for holding cartridges to be fired by said weapon and said part comprising a cylinder rotation linkage member operative in response to movement of said trigger.
Claim 10
Dependent Claim
60 words
An apparatus as in claim 8 further characterized by a first end of said magnetically actuable member being disposed on said spring and a second end thereof including an arm with a restrictor, said restrictor being disposed in a conflicting relationship with said cylinder rotation linkage for blocking movement of said cylinder rotation linkage thereby preventing rotation of said cylinder.
Claim 11
Dependent Claim
40 words
An apparatus as in claim 9 further characterized by said cylinder rotation linkage forming a mechanical coupling between said trigger and said cylinder and said linkage having a notch formed therein and said restrictor being disposed for engaging said notch.
Claim 12
Dependent Claim
49 words
An apparatus as in claim 9 further characterized by said cylinder having a plurality of projections on one end thereof, and said projections forming a part of said cylinder rotation linkage and said restrictor being disposed in a conflicting relationship with said projections for blocking movement of said linkage.
Claim 13
Dependent Claim
97 words
An apparatus as in claim 1 further characterized by said weapon having a trigger, a cylinder for holding cartridges to be fired by said weapon and the cylinder having a plurality of notches formed in one end thereof, and a cylinder rotation linkage forming a mechanical coupling between said trigger and said cylinder, and said magnetically actuable member having a first end thereof disposed on said spring and a second end of said member having an arm with a restrictor, said restrictor being disposed in a position for engaging said notches for blocking movement of said part.
Claim 14
Dependent Claim
48 words
An apparatus as in claim 1 further characterized by said weapon having a trigger and a trigger protector with a projection formed thereon, said magnetically actuable member being disposed on a portion of said trigger in a conflicting relationship with said projection, for blocking movement of said trigger.
Claim 15
Dependent Claim
15 words
An apparatus as in claim 1 further characterized by said weapon comprising a toy pistol.
References Cited (Backward Citations)
US3978604A
Cited
US4067132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-14 | 1982-11-13 | 1983-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-14 | 1986-11-13 | 1987-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-14 | 1990-11-13 | 1991-05-15 | $7700.00 | Window Closed / Lapsed |