Patent US3801144A successfully refreshed from Google Patents.
US3801144A
Expired / Lapsed
US
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Mechanical and electrical control system for a door panic control device
Assignee: Individual
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Filing: 1972-02-24
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Granted: 1974-04-02
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Expires: 1992-02-24
Abstract
Abstract A system for controlling both mechanically and electrically a panic control device for a door. The panic control device is operable to retract a pair of bolts movably mounted in the door. A main solenoid has a plunger connected to the linkages which connect the panic control device to the bolts. By moving the plunger of the main solenoid, the linkages are moved to retract the bolts. An electrical switch is connected between a source of electrical energy and the main solenoid and has an actuating arm movable by the linkages. Initial downward movement of the panic control device causes the linkages to actuate the switch thereby connecting the main solenoid to a source of electrical energy and allowing the main solenoid to complete the retraction of the bolts. A second solenoid has its plunger connected to a dogging mechanism which is provided with a stop positionable adjacent the panic crash bar. Operation of the second solenoid prevents outward movement of the panic crash bar thereby insuring that the bolts remain in the retracted position even though the main solenoid is deactivated.
Inventors
- 👤 R Diehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:55
CPC Classifications
E; E05; E05B; E05B47/00; E05B47/02; E05B47/023; E05B47/0001; E05B47/0002; E05B47/06; E05B47/0603; E05B65/00; E05B65/10; E05B65/1046; E05B65/106; E05B65/1066; E05B65/108; E05B2047/0007; E05B2047/0008; E05B47/0003; E05B47/0004; E05B65/1006; E05B65/1093; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0908; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5159
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
157 words
An apparatus for a door having a panic crash bar and linkages operably connecting said bar to a locking bolt of the door whereby moving said bar toward the door causes said bolt to be retracted unlocking the door comprising: electrical control means connected to said linkages and operable to retract said bolt unlocking the door; electrical monitor means mounted to said door operable to indicate movement of said bolt by said bar; said electrical control means includes a main solenoid mounted to said door with a movable plunger connected and operative to move said linkages to retract said bolt and with a main solenoid actuating switch located remotely from the door to connect said main solenoid with a source of electrical energy; an assist switch mounted to said door with actuating means movable by initial movement of said bar and operable to connect said solenoid to said source of electrical energy to finish retracting said bolt.
Claim 2
Independent Claim
157 words
An apparatus for a door having a panic crash bar and linkages operably connecting said bar to a locking bolt of the door whereby moving said bar toward the door causes said bolt to be retracted unlocking the door comprising: electrical control means connected to said linkages and operable to retract said bolt unlocking the door; electrical monitor means mounted to said door operable to indicate movement of said bolt by said bar; said electrical control means includes a main solenoid mounted to said door with a movable plunger connected and operative to move said linkages to retract said bolt and with a main solenoid actuating switch located remotely from the door to connect said main solenoid with a source of electrical energy; an assist switch mounted to said door with actuating means movable by initial movement of said bar and operable to connect said solenoid to said source of electrical energy to finish retracting said bolt.
Claim 3
Dependent Claim
64 words
The apparatus of claim 1 and further comprising: a dogging mechanism mounted to said door having a first movable stop; and, a dogging solenoid mounted in said door having switch means operable to connect said dogging solenoid to a source of electrical energy, said dogging solenoid having a second plunger movable to position said stop against said bar preventing outward movement of said bar.
Claim 4
Dependent Claim
52 words
The apparatus of claim 2 wherein: said mechanism includes a dogging lug and a movable plate, said movable plate is slidably mounted in said door and is movable against said lug to keep said lug in the retracted position, said lug is connected to and between said second plunger and said stop.
Claim 5
Dependent Claim
68 words
The apparatus of claim 3 wherein: said door has another locking bolt operably connected to said bar by links whereby both bolts may be simultaneously retracted by moving said bar toward the door and further comprising: a cam rotatably mounted to said door and pivotally connected to said links; and wherein: said actuating means of said assist switch is an arm with an end engaged with said cam.
Claim 6
Dependent Claim
24 words
The apparatus of claim 4 wherein: said monitor means includes an indicator light connected between said assist switch and said source of Electrical energy.
Claim 7
Dependent Claim
59 words
The apparatus of claim 5 and further comprising: a rack slidably mounted in said door; a lockable gear rotatably mounted to said door and in meshing engagement with said rack so that rotation of said gear in one direction causes said rack to move against a portion of said panic crash bar locking said bolts in the retracted position.
Claim 8
Independent Claim
93 words
An apparatus for a door having a panic crash bar and linkages operably connecting said bar to a locking bolt of the door whereby moving said bar toward the door causes said bolt to be retracted unlocking the door comprising: electrical control means connected to said linkages and operable to retract said bolt unlocking the door; and, an assist switch mounted to said door with actuating means movable by initial movement of said bar and operable to connect said electrical control means to a source of electrical energy to finish retracting said bolt.
Claim 9
Independent Claim
93 words
An apparatus for a door having a panic crash bar and linkages operably connecting said bar to a locking bolt of the door whereby moving said bar toward the door causes said bolt to be retracted unlocking the door comprising: electrical control means connected to said linkages and operable to retract said bolt unlocking the door; and, an assist switch mounted to said door with actuating means movable by initial movement of said bar and operable to connect said electrical control means to a source of electrical energy to finish retracting said bolt.
Claim 10
Dependent Claim
63 words
The apparatus of claim 7 and further comprising: a dogging mechanism mounted to said door having a first movable stop; and, a dogging solenoid mounted in said door having switch means operable to connect said dogging solenoid to a source of electrical energy, said dogging solenoid having a plunger movable to position said stop against said bar preventing outward movement of said bar.
Claim 11
Dependent Claim
51 words
The apparatus of claim 8 wherein: said mechanism includes a dogging lug and a movable plate, said movable plate is slidably mounted in said door and is movable against said lug to keep said lug in the retracted position, said lug is connected to and between said plunger and said stop.
Claim 12
Dependent Claim
33 words
The apparatus of claim 9 wherein: said door has another locking bolt operably connected to said bar by links whereby both bolts may be simultaneously retracted by moving said bar toward the door.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |