Patent US3921541A successfully refreshed from Google Patents.
US3921541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote controlled strong box assembly and latch therefor
Assignee: Viking Fire Protection Ltd
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Filing: 1973-07-30
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Granted: 1975-11-25
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Expires: 1993-07-30
Abstract
Abstract A strong box unit adapted to be used as a single unit or as part of a multi-unit assembly and having a latch particularly adapted to be remote controlled and to defeat the attempts to gain unauthorized access to the contents of the strong boxes. A latch adapted to require both manual and remote actuation to open a door of a strong box. The latch is adapted to be operated by an electromechanical means energized by a delay circuit arranged to cancel, if desired, a delay cycle which has been started. A strong box constructed to conceal all the moving parts inside thereof and having a door with no apparent hinge. In the multiunit assembly, a remote control is provided with a manual selector switch which is arranged to be connected to open anyone of a number of strong boxes.
Inventors
- 👤 Guy Chartrand
- 👤 Aulniers Jacques Des
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:19
CPC Classifications
E; E05; E05G; E05G5/00; E05G5/006; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5889; Y10T70/5912; Y10T70/5973
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
192 words
A strong box assembly for the protection of valuables comprising a strong enclosure structure having a door aperture, a door structure mounted on said enclosure structure and arranged to close said door aperture, a latch means mounted onto one of said structure to releasably lock said door structure in closed position, a remote-controlled actuating means positioned inside said enclosure structure, engaging said latch means, and constructed and arranged to be operated from a remote location outside said enclosure structure, a manual actuating means operatively connected to said remote-controlled latch means, projecting exteriorly of said enclosure structure, and constructed and arranged to be manually operated to complete unlatching of said door and wherein the other of said structures has a notch, one of said latch means and notch has a step and actuation of said remote-controlled actuating means causes said latch means to take an intermediate retracted position into which said step is operatively engaged and arranged to retain said door in a partially open position, and said manual actuating means is constructed and arranged to further retract said latch means to clear said notch and release said door structure for complete opening.
Claim 2
Dependent Claim
192 words
A strong box assembly for the protection of valuables comprising a strong enclosure structure having a door aperture, a door structure mounted on said enclosure structure and arranged to close said door aperture, a latch means mounted onto one of said structure to releasably lock said door structure in closed position, a remote-controlled actuating means positioned inside said enclosure structure, engaging said latch means, and constructed and arranged to be operated from a remote location outside said enclosure structure, a manual actuating means operatively connected to said remote-controlled latch means, projecting exteriorly of said enclosure structure, and constructed and arranged to be manually operated to complete unlatching of said door and wherein the other of said structures has a notch, one of said latch means and notch has a step and actuation of said remote-controlled actuating means causes said latch means to take an intermediate retracted position into which said step is operatively engaged and arranged to retain said door in a partially open position, and said manual actuating means is constructed and arranged to further retract said latch means to clear said notch and release said door structure for complete opening.
Claim 3
Dependent Claim
133 words
A strong box assembly as defined in claim 1, wherein guide tracks are provided along opposite side edges of said door aperture, said door is slidably mounted in engagement with said guide tracks and said notch is formed into the inner side of said door, said latcH means includes a plunger, a first spring engaging said plunger and biasing the latter away from said door structure, a cam movably carried by said enclosure structure, engaging said plunger to move the latter and operatively connected to said remote-controlled actuating means, and a second spring biasing said cam to a position in which said cam locks said plunger into full engagement with said notch, said remote-controlled actuating means, when actuated, moving said cam against the bias of said second spring to a plunger unlocking position.
Claim 4
Dependent Claim
126 words
A strong box assembly as defined in claim 1, wherein said enclosure structure is provided with guide tracks arranged along opposite edges of said door aperture to extend upwardly when said enclosure structure is operatively mounted, said door structure slidably engages said guide tracks and is arranged to open under gravity upon release of said latch means, said notch is a first notch formed near the lower end of said door structure, the latter has a second notch formed near the upper end of said door structure and extending into the inner side thereof and said plunger is arranged to engage into said first notch to lock said door structure in closed position, and into said second notch to retain said door structure in open position.
Claim 5
Dependent Claim
50 words
A strong box assembly as defined in claim 2, wherein said means to further retract said latch means includes a handle attached to said plunger projecting and accessible outside said enclosure structure, for further retraction of said plunger and complete opening of said door structure relative to said enclosure structure.
Claim 6
Dependent Claim
51 words
A strong box assembly as defined in claim 4, wherein said plunger is slidably mounted to engage into said notch, said handle is rigidly fixed to said plunger, said enclosure structure has a slot through an outside wall thereof, said handle is displaceable into said slot for actuation of said plunger.
Claim 7
Dependent Claim
29 words
A strong box assembly as defined in claim 5, further including a guard wall between said cam and said slot to prevent access to said cam through said slot.
Claim 8
Dependent Claim
157 words
A strong box assembly as defined in claim 5, wherein a bracket forming a bore for said plunger is fixed inside said enclosure structure, said plunger is mounted into said bore for reciprocating movement to and fro relative to said door structure, said plunger has a rod portion having a free end extending therefrom, away from said door structure, said cam is pivoted adjacent said free end of said rod portion, said first spring is tensioned between said rod portion and said enclosure and is arranged to bias said plunger away from said door structure and to apply said rod portion against said cam, a rod is connected to said cam and to said remote-controlled actuating means to be displaced by the latter, said cam has its pivot in alignment with said rod portion and has a partially circular cam face coaxial with said pivot and engaging said rod portion in the locking position of said cam.
Claim 9
Dependent Claim
163 words
A strong box assembly for the protection of valuables comprising a strong enclosure structure having a door aperture, a door structure mounted on said enclosure structure and arranged to close said door aperture, a latch means mounted onto one of said structures to releasably lock said door structure in closed position, a remote-controlled actuating means positioned inside said enclosure structure, engaging said latch means, and constructed and arranged to be operated from a remote location outside said enclosure structure, a manual actuating means operatively connected to said remote-controlled latch means, projecting exteriorly of said enclosure structure, and constructed and arranged to be manually operated to complete unlatching of said door and wherein said door structure is provided with a slot therethrough for the insertion of valuables and said enclosure structure includes a rear panel which is attached to said enclosure structure by inside fasteners constructed and arranged to be released by a tool inserted through said slot when said door structure is closed.
Claim 10
Dependent Claim
163 words
A strong box assembly for the protection of valuables comprising a strong enclosure structure having a door aperture, a door structure mounted on said enclosure structure and arranged to close said door aperture, a latch means mounted onto one of said structures to releasably lock said door structure in closed position, a remote-controlled actuating means positioned inside said enclosure structure, engaging said latch means, and constructed and arranged to be operated from a remote location outside said enclosure structure, a manual actuating means operatively connected to said remote-controlled latch means, projecting exteriorly of said enclosure structure, and constructed and arranged to be manually operated to complete unlatching of said door and wherein said door structure is provided with a slot therethrough for the insertion of valuables and said enclosure structure includes a rear panel which is attached to said enclosure structure by inside fasteners constructed and arranged to be released by a tool inserted through said slot when said door structure is closed.
Claim 11
Dependent Claim
75 words
A strong box assembly as defined in claim 8, wherein said enclosure structure includes a transverse partition extending inside thereof in inwardly spaced relationship relative to said rear panel, the latter has internally threaded bosses rigidly fixed on the inside thereof and facing said transverse partition, the latter has apertures therethrough and said fasteners include screws rotatably retained by said enclosure structure and arranged to engage and be threaded into said bosses by said tool.
Claim 12
Dependent Claim
136 words
A strong box assembly as defined in claim 1, wherein said remote-controlled actuating means is an electro-mechanical actuating means and further comprising a control circuit connected to said electromechanical actuating means and including a delay circuit and manual delay cycle control means connected to one another and constructed and arranged to cause said delay circuit to produce a predetermined delay cycle and to produce operation of said remote-controlled actuating means to open said door after said predetermined delay cycle and wherein said manual delay cycle control means includes a key switch connected to said delay circuit to control energization thereof and to place the same in readiness to produce a delay cycle, and a delay cycle initiating switch connected to said delay circuit and constructed and arranged to cause the latter to start a delay cycle.
Claim 13
Dependent Claim
65 words
A strong box assembly as defined in claim 10, wherein a door-operated switch is mounted onto said enclosure structure and arranged to be actuated by said door structure between a door-open and a door-closed positions, a first and a second indicating lamps and said door-operated switch are connected to said delay circuit and arranged to indicate the open-door and a delay cycle producing conditions respectively.
Claim 14
Dependent Claim
38 words
A strong box assembly as defined in claim 11, wherein said key switch and said first and second indicating lamps are mounted onto a remote control unit connected to said delay circuit for remote operation of said door.
Claim 15
Dependent Claim
66 words
A strong box assembly as defined in claim 10, further including other strong enclosures each having a door, a latch means, and a remote-controlled actuating means defining a plurality of strong box units, said manual delay cycle control means includes a manual selector switch having sets of contacts arranged to select one of said units and to operate the remote-controlled actuating means of said one unit.
Claim 16
Dependent Claim
78 words
A strong box assembly as defined in claim 13, wherein a door-operated switch is mounted into each enclosure structure in association with the corresponding door thereof to be actuated by the same between a door-open and a door-closed positions, a first and a second indicating lamps are provided for each strong box unit and with the corresponding door-operated switch are connected to said delay circuit and arranged to indicate the open-door and a delay cycle producing conditions respectively.
References Cited (Backward Citations)
US1485388A
Cited
US1805759A
Cited
US3016968A
Cited
US3113447A
Cited
US3504511A
Cited
US3596484A
Cited
US3587486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |