US3786471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Security maintenance system
Assignee: Individual
•
Filing: 1971-04-05
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Granted: 1974-01-15
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Expires: 1991-04-05
Abstract
Abstract A security maintenance system includes an area keyport adjacent a locked barrier at the entrance of a restricted area with a master console disposed remote from the area keyport. The master console has a plurality of individual master keyports. Coded key means are provided for insertion into the area keyport and a master keyport. Scanning means are provided for the master console in conjunction with comparison means between the area keyport and master keyports for cyclically scanning the keyports and inactivating the locked barrier to permit entry to the restricted area when the area keyport and master keyport have identical coded key means inserted therein.
Inventors
- 👤 H Hochman
- 👤 D Hogan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:44
CPC Classifications
G; G07; G07C; G07C9/00; G07C9/00174; G07C9/00571; E; E05; E05B; E05B47/00; E05B47/0046; E05B47/0047; E05B49/00; E05B49/002; E05B49/004; G07C9/00896; G07C9/00904; G07C9/20; G07C9/27; Y; Y10; Y10S; Y10S70/00; Y10S70/17; Y10T; Y10T70/00; Y10T70/60; Y10T70/625
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
186 words
A security maintenance system for controlling entrance to and monitoring conditions at a restricted area comprising a locked barrier at the entrance to the area, a monitor station at the area for monitoring a plurality of conditions therein, an area keyport as an integral part of said monitor station, actuating means between said area keyport and said locked barrier, master console means disposed remote from said area keyport, said master console means having at least one master keyport, coded key means for insertion into said area and said master keyports, scanning means between said area keyport and said master console means for cyclically scanning said keyports in a time cycle of a plurality of phases to detect if at least one of a plurality of conditions exist at said area during phases of continuously repeated time cycle, one of said conditions being the presence of proper key means in said area keyport, and said scanning means initiating said actuating means for inactivating said locked barrier to permit entrance to the area when said area keyport and said master keyport have proper corresponding coded means inserted therein.
Claim 2
Dependent Claim
186 words
A security maintenance system for controlling entrance to and monitoring conditions at a restricted area comprising a locked barrier at the entrance to the area, a monitor station at the area for monitoring a plurality of conditions therein, an area keyport as an integral part of said monitor station, actuating means between said area keyport and said locked barrier, master console means disposed remote from said area keyport, said master console means having at least one master keyport, coded key means for insertion into said area and said master keyports, scanning means between said area keyport and said master console means for cyclically scanning said keyports in a time cycle of a plurality of phases to detect if at least one of a plurality of conditions exist at said area during phases of continuously repeated time cycle, one of said conditions being the presence of proper key means in said area keyport, and said scanning means initiating said actuating means for inactivating said locked barrier to permit entrance to the area when said area keyport and said master keyport have proper corresponding coded means inserted therein.
Claim 3
Dependent Claim
32 words
A system as set forth in claim 1 including bypass means whereby said scanning means by-passes later phases in a cycle when the presence of proper corresponding coded key means is detected.
Claim 4
Dependent Claim
22 words
A system as set forth in claim 1 wherein one of the conditions is the detection of a malfunction in said system.
Claim 5
Dependent Claim
43 words
A system as set forth in claim 1 wherein said actuating means includes power operated lock means set in an unlocking condition upon detection of a proper corresponding coded key means to periodically draw power only during its phase of the time cycle.
Claim 6
Dependent Claim
47 words
A system as set forth in claim 1 wherein there are a plurality of restricted areas with an area keyport and at least one master keyport for each area, said scanning means cyclically scanning each of the areas with each scanning cycle being divided into time phases.
Claim 7
Dependent Claim
51 words
A system as set forth in claim 5 wherein a set of master keyporTs are incorporated in said master console means corresponding to a single area keyport for permitting entrance to the area upon detection of proper corresponding coded key means in said area keyport and any of said master keyports.
Claim 8
Dependent Claim
19 words
A system as set forth in claim 5 wherein said master console means is a single master console unit.
Claim 9
Dependent Claim
32 words
A system as set forth in claim 6 wherein said plurality of areas are grouped into sets and at least one of the master keyports individually corresponding to a set of areas.
Claim 10
Dependent Claim
24 words
A system as set forth in claim 6 wherein said coded key means comprises a disposable non-conductive card having a pattern of holes therein.
Claim 11
Dependent Claim
39 words
A system as set forth in claim 6 including alarm means actuated by said scanning means when an object is inserted in said area keyport which does not match one of the coded key means in said master keyport.
Claim 12
Dependent Claim
18 words
A system as set forth in claim 10 wherein said scanning means includes comparison means and multiplex means.
Claim 13
Dependent Claim
34 words
A system as set forth in claim 1 including stimulus sensing means at the restricted area, and stimulus indicating means remote from its area for indicating predetermined conditions sensed by said stimulus sensing means.
Claim 14
Dependent Claim
94 words
A system as set forth in claim 12 wherein each keyport includes a housing, a slot in said housing, a plurality of pairs of electrically conductive spring fingers urged toward each other for making electrical contact, each coded key means being an insulative card sized to fit into said slot and between the fingers of said pairs of spring fingers, and said card having a pattern of holes therethrough to permit a corresponding arrangement of spring fingers to contact each other through said holes while the remaining spring fingers are insulated from each other.
Claim 15
Dependent Claim
23 words
A system as set forth in claim 1 wherein each card is made of a disposable non-conductive material with holes being arranged therein.
Claim 16
Dependent Claim
112 words
A system as set forth in claim 14 wherein said locked barrier is a door, a lock on said door, said lock including a latch bolt and a night latch, a door jamb, a housing in said door jamb, a strike plate over said housing disposed in the path of movement of said bolt and said night latch, an opening in said strike plate for permitting both said bolt and said night latch to enter said housing, locking means in said housing for maintaining said night latch retracted, and unlocking means in said housing responsive to said comparison means for inactivating said locking means to permit said night latch to be extended.
Claim 17
Dependent Claim
57 words
A system as set forth in claim 15 wherein said locking means comprises a latch plate abutting against said night latch, said latch plate having a shoulder, a locking lever engaged with said shoulder for holding said plate against said night latch, and said unlocking means being an electromagnet for moving said lever away from said shoulder.
Claim 18
Dependent Claim
28 words
A system as set forth in claim 16 wherein an angle shaped member is disposed between said lever and said electromagnet for controlling the position of said lever.
Claim 19
Dependent Claim
22 words
A system as set forth in claim 16 including inactivating means for mechanically removing said latch plate from against said night latch.
Claim 20
Dependent Claim
61 words
A system as set forth in claim 1 wherein each keyport includes a housing, a slot in said housing, a plurality of insulated non-conductive finger-like protrusions in said hosing adjacent said slot, and each coded key means being a card for causing electrical contact to be made by an arrangement of said protrusions upon insertion of said card into said slot.
Claim 21
Dependent Claim
39 words
A system as set forth in claim 1 including alarm means actuated by said scanning means when an object is inserted in said area keyport which does not match one of the coded key means in said master keyport.
Claim 22
Dependent Claim
18 words
A system as set forth in claim 1 wherein said scanning means includes comparison means and multiplex means.
Claim 23
Dependent Claim
34 words
A system as set forth in claim 1 including stimulus sensing means at the restricted area, and stimulus indicating meAns remote from its area for indicating predetermined conditions sensed by said stimulus sensing means.
Claim 24
Dependent Claim
111 words
A system as set forth in claim 1 wherein said locked barrier is a door, a lock on said door, said lock including a latch bolt and a night latch, door jamb, a housing in said door jamb, a strike plate over said housing disposed in the path of movement of said bolt and said night latch, an opening in said strike plate for permitting both said bolt and said night latch to enter said housing, locking means in said housing for maintaining said night latch retracted, and unlocking means in said housing responsive to said comparison means for inactivating said locking means to permit said night latch to be extended.
Claim 25
Dependent Claim
15 words
A system as set forth in claim 19 wherein said protrusions are switch actuating means.
Claim 26
Dependent Claim
118 words
A security maintenance system for controlling entrance to a restricted area comprising a locked barrier at the entrance to the area, an area keyport, actuating means between said area keyport and said locked barrier, a plurality of master keyports corresponding to and remote from said area keyport, coded key means for insertion into each of said area and said master keyports, sampling means between said area keyport and its master keyports for sampling said area keyport with respect to each of its master keyports and initiating said actuating means for inactivating said locked barrier to permit entrance to the area when said area keyport and one of its master keyports have proper corresponding coded key means inserted therein.
Claim 27
Dependent Claim
118 words
A security maintenance system for controlling entrance to a restricted area comprising a locked barrier at the entrance to the area, an area keyport, actuating means between said area keyport and said locked barrier, a plurality of master keyports corresponding to and remote from said area keyport, coded key means for insertion into each of said area and said master keyports, sampling means between said area keyport and its master keyports for sampling said area keyport with respect to each of its master keyports and initiating said actuating means for inactivating said locked barrier to permit entrance to the area when said area keyport and one of its master keyports have proper corresponding coded key means inserted therein.
Claim 28
Dependent Claim
130 words
A security maintenance system for controlling entrance to a plurality of restricted areas comprising a locked barrier at the entrance to each of the areas, an area keyport at each of the areas, actuating means between each of said area keyports and its locked barrier, a master console disposed remote from said area keyports, said master console having a single master keyport corresponding to a set of said area keyports, coded key means for insertion into said master and said set of area keyports, sampling means between said area keyports and said master keyport for sampling said keyports and initiating said actuating means for inactivating a locked barrier to permit entrance to its area when its area keyport and said master keyport have proper corresponding coded key means inserted therein.
Claim 29
Dependent Claim
130 words
A security maintenance system for controlling entrance to a plurality of restricted areas comprising a locked barrier at the entrance to each of the areas, an area keyport at each of the areas, actuating means between each of said area keyports and its locked barrier, a master console disposed remote from said area keyports, said master console having a single master keyport corresponding to a set of said area keyports, coded key means for insertion into said master and said set of area keyports, sampling means between said area keyports and said master keyport for sampling said keyports and initiating said actuating means for inactivating a locked barrier to permit entrance to its area when its area keyport and said master keyport have proper corresponding coded key means inserted therein.
Claim 30
Dependent Claim
22 words
A system as set forth in claim 26 including a further set of area keyports and a further master keyport corresponding thereto.
Claim 31
Dependent Claim
98 words
In a method for controlling entrance to and monitoring conditions at a restricted area having a locked barrier at the entrance to the area and an area keyport at the area the improvement comprising cyclically scanning the area keyport and at least one master keyport corresponding thereto but remote therefrom, the scanning cycle beng divided into a plurality of time phases to detect if at least one of a plurality of conditions exist at the area including the presence of a proper key means in the area keyport and the corresponding master keyport, and continuously repeating the cycle.
Claim 32
Dependent Claim
98 words
In a method for controlling entrance to and monitoring conditions at a restricted area having a locked barrier at the entrance to the area and an area keyport at the area the improvement comprising cyclically scanning the area keyport and at least one master keyport corresponding thereto but remote therefrom, the scanning cycle beng divided into a plurality of time phases to detect if at least one of a plurality of conditions exist at the area including the presence of a proper key means in the area keyport and the corresponding master keyport, and continuously repeating the cycle.
Claim 33
Dependent Claim
45 words
In the method of claim 28 wherein there are a plurality of master keyports corresponding to each area keyport, and individual phases of each cycle including detecting if a proper corresponding coded key means are in the area keyport with respect to each master keyport.
Claim 34
Dependent Claim
21 words
In the method of claim 29 including by-passing later phases of a cycle when proper corresponding coded key means are detected.
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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |