Patent US3285209A successfully refreshed from Google Patents.
US3285209A
Expired / Lapsed
US
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Revolving door safety system
Assignee: Individual
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Filing: 1965-02-12
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Granted: 1966-11-15
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Expires: 1985-02-12
Abstract
No abstract record available.
Inventors
- 👤 Pace Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:30
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/90; E05; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
IN AN ENCLOSURE HAVING A REVOLVING DOOR FOR THE ENTRANCE AND EXIT OF THE GENERAL PUBLIC, A REMOTE CONTROL DOOR LOCK AND RELEASE SYSTEM COMPRISING, (A) A REVOLVING DOOR INCLUDING A CENTRAL SUPPORTING COLUMN, (B) AN ENCLOSURE ABOVE SAID DOOR AND DISPOSED TO RECEIVE AND SUPPORT THE COLUMN AT THE UPPER EXTREMITY THEREOF, (C) A SLOTTED CAM PLATE WITHIN SAID ENCLOSURE AND SUPPORTED BY SAID COLUMN AND DISPOSED TO ROTATE THEREWITH IN A PREDETERMINED POSITION, (D) MEANS INCLUDING A PAIR OF SOLENOIDALLY REMOTELY OPERATED INTERACTING ELONGATED PLUNGER MECHANISMS EACH SUPPORTED BY SAID ENCLOSURE, ONE OF SID MECHANISMS INTERCEPTING SAID CAM PLATE ALONG THE SLOTTED PORTION THEREOF IN RESPONSE TO SAID DOOR LOCK REMOTE CONTROL ACTUATING THE OTHER SOLENOID OPERATED MECHANISM TO LOCK THE DOOR IN A PREDETERMINED POSITION, SAID OTHER PLUNGER MECHANISM BEING DISPOSED TO INTERACT WITH THE FIRST PLUNGER MECHANISM IN RESPONSE TO THE DOOR RELEASE CONTROL FOR ACTUATING THE SOLENOID OF SAID FIRST PLUNGER TO PERMIT THE RELEASE OF SAID FIRST PLUNGER FROM THE SLOTTED CAM PLATE AND THEREBY UNLOCK THE DOOR TO PERMIT ANOTHER CYCLE OF OPERATION.
Claim 2
Dependent Claim
180 words
IN AN ENCLOSURE HAVING A REVOLVING DOOR FOR THE ENTRANCE AND EXIT OF THE GENERAL PUBLIC, A REMOTE CONTROL DOOR LOCK AND RELEASE SYSTEM COMPRISING, (A) A REVOLVING DOOR INCLUDING A CENTRAL SUPPORTING COLUMN, (B) AN ENCLOSURE ABOVE SAID DOOR AND DISPOSED TO RECEIVE AND SUPPORT THE COLUMN AT THE UPPER EXTREMITY THEREOF, (C) A SLOTTED CAM PLATE WITHIN SAID ENCLOSURE AND SUPPORTED BY SAID COLUMN AND DISPOSED TO ROTATE THEREWITH IN A PREDETERMINED POSITION, (D) MEANS INCLUDING A PAIR OF SOLENOIDALLY REMOTELY OPERATED INTERACTING ELONGATED PLUNGER MECHANISMS EACH SUPPORTED BY SAID ENCLOSURE, ONE OF SID MECHANISMS INTERCEPTING SAID CAM PLATE ALONG THE SLOTTED PORTION THEREOF IN RESPONSE TO SAID DOOR LOCK REMOTE CONTROL ACTUATING THE OTHER SOLENOID OPERATED MECHANISM TO LOCK THE DOOR IN A PREDETERMINED POSITION, SAID OTHER PLUNGER MECHANISM BEING DISPOSED TO INTERACT WITH THE FIRST PLUNGER MECHANISM IN RESPONSE TO THE DOOR RELEASE CONTROL FOR ACTUATING THE SOLENOID OF SAID FIRST PLUNGER TO PERMIT THE RELEASE OF SAID FIRST PLUNGER FROM THE SLOTTED CAM PLATE AND THEREBY UNLOCK THE DOOR TO PERMIT ANOTHER CYCLE OF OPERATION.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |