US3704460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained alarm lock with tamper-proof interlocked casing formed from extrusion
Assignee: Individual
•
Filing: 1970-08-18
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Granted: 1972-11-28
•
Expires: 1990-08-18
Abstract
Abstract An integral self-contained, key-operated alarm lock, the major portion of the casing for which can be made from two longitudinally slidably tongued-groove interlocking channel extrusions, has an electronic alarm circuit composed of a finger on-off switch, a striker proximity switch, a bolt position switch and a latching switch which holds the alarm on when it has been activated, until properly shut off.
Inventors
- 👤 Stanley William Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:11
CPC Classifications
E; E05; E05B; E05B45/00; E05B45/06; E05B45/08; E05B45/083; E05B45/086; E05B17/00; E05B17/0054
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
246 words
In a self-contained alarm lock assembly having a casing containing a key-operated cylinder lock and an internal alarm system and adapted to be mounted on a closure member, and a striker adapted to be mounted on the jamb associated with said closure member and mating with and retaining the bolt of said lock when the same is in a locked position, the improvement comprising an alarm circuit within said casing, including: 1. an internal power supply 2. an alarm, operating from said power supply and in electrical combination therewith 3. a bolt switch actuated by said cylinder lock and adapted to be ''''on'''' when said bolt is in said striker, and otherwise to be ''''off'''' 4. a striker switch in said closure member actuatable by movement of said closure member relative to said striker and adapted to be ''''off'''' when said closure member is fully seated in said jamb, and otherwise to be ''''on,'''' and 5. a latching switch in electrical combination with a coil to hold a circuit including said power source and said alarm in closed position to actuate said alarm, said latching switch adapted to be ''''on'''' once said alarm is activated, and otherwise to be ''''off'''' and once ''''on'''' to remain so until said bolt switch is placed in the ''''off'''' position, said alarm circuit being adapted to when said lock is in the locked position, and said closure member is Moved slightly ajar, turn said striker switch ''''on,'''' activating said alarm.
Claim 2
Dependent Claim
246 words
In a self-contained alarm lock assembly having a casing containing a key-operated cylinder lock and an internal alarm system and adapted to be mounted on a closure member, and a striker adapted to be mounted on the jamb associated with said closure member and mating with and retaining the bolt of said lock when the same is in a locked position, the improvement comprising an alarm circuit within said casing, including: 1. an internal power supply 2. an alarm, operating from said power supply and in electrical combination therewith 3. a bolt switch actuated by said cylinder lock and adapted to be ''''on'''' when said bolt is in said striker, and otherwise to be ''''off'''' 4. a striker switch in said closure member actuatable by movement of said closure member relative to said striker and adapted to be ''''off'''' when said closure member is fully seated in said jamb, and otherwise to be ''''on,'''' and 5. a latching switch in electrical combination with a coil to hold a circuit including said power source and said alarm in closed position to actuate said alarm, said latching switch adapted to be ''''on'''' once said alarm is activated, and otherwise to be ''''off'''' and once ''''on'''' to remain so until said bolt switch is placed in the ''''off'''' position, said alarm circuit being adapted to when said lock is in the locked position, and said closure member is Moved slightly ajar, turn said striker switch ''''on,'''' activating said alarm.
Claim 3
Dependent Claim
12 words
an alarm, operating from said power supply and in electrical combination therewith
Claim 4
Dependent Claim
12 words
an alarm, operating from said power supply and in electrical combination therewith
Claim 5
Dependent Claim
7 words
The alarm lock of claim 1 wherein:
Claim 6
Dependent Claim
16 words
said bolt switch is a magnetic reed switch, and said bolt includes a magnet associated therewith,
Claim 7
Dependent Claim
16 words
said bolt switch is a magnetic reed switch, and said bolt includes a magnet associated therewith,
Claim 8
Dependent Claim
25 words
a bolt switch actuated by said cylinder lock and adapted to be ''''on'''' when said bolt is in said striker, and otherwise to be ''''off''''
Claim 9
Dependent Claim
25 words
a bolt switch actuated by said cylinder lock and adapted to be ''''on'''' when said bolt is in said striker, and otherwise to be ''''off''''
Claim 10
Dependent Claim
89 words
The alarm lock of claim 1 wherein said casing comprising two front and back longitudinally slidably interlocking channel sections, the back one thereof being adapted to be mounted on said closure member and to retain the actuator and external cylinder of said cylinder lock, and the front one thereof being adapted to retain the actuator-interlock of said cylinder lock, the whole being adapted to prevent the front section from being removed from the back section unless the interior cylinder assembly of said cylinder lock is operated with a key.
Claim 11
Dependent Claim
39 words
a striker switch in said closure member actuatable by movement of said closure member relative to said striker and adapted to be ''''off'''' when said closure member is fully seated in said jamb, and otherwise to be ''''on,'''' and
Claim 12
Dependent Claim
39 words
a striker switch in said closure member actuatable by movement of said closure member relative to said striker and adapted to be ''''off'''' when said closure member is fully seated in said jamb, and otherwise to be ''''on,'''' and
Claim 13
Dependent Claim
39 words
The alarm lock of claim 3 wherein said casing is sealed at the ends with end plates mating therewith and held with flush press fitted pins positioned both longitudinally and perpendicularly to the major axis of said channel members.
Claim 14
Dependent Claim
17 words
said striker switch is a magnetic reed switch, and said striker includes a magnet associated therewith, and
Claim 15
Dependent Claim
17 words
said striker switch is a magnetic reed switch, and said striker includes a magnet associated therewith, and
Claim 16
Dependent Claim
26 words
said latching switch is a magnetic reed switch disposed in a coil operating from power flowing to said alarm, and said alarm is an audible horn.
Claim 17
Dependent Claim
26 words
said latching switch is a magnetic reed switch disposed in a coil operating from power flowing to said alarm, and said alarm is an audible horn.
Claim 18
Dependent Claim
90 words
a latching switch in electrical combination with a coil to hold a circuit including said power source and said alarm in closed position to actuate said alarm, said latching switch adapted to be ''''on'''' once said alarm is activated, and otherwise to be ''''off'''' and once ''''on'''' to remain so until said bolt switch is placed in the ''''off'''' position, said alarm circuit being adapted to when said lock is in the locked position, and said closure member is Moved slightly ajar, turn said striker switch ''''on,'''' activating said alarm.
Claim 19
Dependent Claim
90 words
a latching switch in electrical combination with a coil to hold a circuit including said power source and said alarm in closed position to actuate said alarm, said latching switch adapted to be ''''on'''' once said alarm is activated, and otherwise to be ''''off'''' and once ''''on'''' to remain so until said bolt switch is placed in the ''''off'''' position, said alarm circuit being adapted to when said lock is in the locked position, and said closure member is Moved slightly ajar, turn said striker switch ''''on,'''' activating said alarm.
Claim 20
Dependent Claim
92 words
The alarm lock of claim 1 wherein said striker includes a member extending downwardly therethrough perpendicular to the axis of movement of said bolt and disposed to the outside of said bolt in the direction of opening, said member normally helping to retain said bolt in the locked position, the openings in said striker to receive said member permitting said member to be displaced when said alarm lock is sufficiently forced and to thereafter permit sufficient movement to cause activation of said striker switch without dislodgement of said striker from said jamb.
Claim 21
Dependent Claim
13 words
The alarm lock of claim 5, wherein said member comprises a shear pin.
Claim 22
Dependent Claim
19 words
The alarm lock of claim 5, wherein said member comprises at least one element resiliently urged toward said bolt.
References Cited (Backward Citations)
US2615083A
Cited
US2660632A
Cited
US3011163A
Cited
US3353383A
Cited
US3537094A
Cited
US3444546A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-28 | 1976-05-29 | 1976-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-28 | 1980-05-29 | 1980-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-28 | 1984-05-29 | 1984-11-28 | $7700.00 | Window Closed / Lapsed |