US3282383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Free-fall safety brake
Assignee: Triax Co
•
Filing: 1964-06-30
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Granted: 1966-11-01
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Expires: 1984-06-30
Abstract
No abstract record available.
Inventors
- 👤 Anthony R Chasar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:58
CPC Classifications
B; B66; B66B; B66B5/00; B66B5/02; B66B5/16; B66B5/18; B66B5/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A FREE-FALL SAFETY BRAKE FOR AN ELEVATOR STRUCTURE, THE STRUCTURE HAVING HOISTING MEANS AND BEING DISPOSED CLOSELY ADJACENT TO A VERTICAL, FIXED COLUMN; SAID POCKET COMPRISING MEANS PROVIDING AN UPWARDLY TAPERED POCKET HAVING AN OPEN SIDE ADJACENT TO ONE SIDE OF THE COLUMN; MEANS PROVIDING A LATERALLY TAPERED POCKET HAVING ITS LARGER END OPEN AND DISPOSED ADJACENT TO THE OTHER SIDE OF THE COLUMN; SAID MEANS PROVIDING SAID POCKETS BEING MOUNTED ON A SINGLE BASE MEMBER; MEANS LATERALLY SHIFTABLY MOUNTING SAID MEMBER TO THE ELEVATOR STRUCTURE IN USE; A WHEEL LOOSELY DISPOSED IN THE BOTTOM OF SAID UPWARDLY TAPERED POCKET AND NORMALLY SPACED FROM THE COLUMN; A GENERALLY HORIZONTAL BAR DISPOSED IN SAID LATERALLY TAPERED POCKET AND NORMALLY SPACED FROM SAID COLUMN; MEANS CONNECTING SAID BRAKE TO THE HOISTING MEANS;
Claim 2
Dependent Claim
130 words
A FREE-FALL SAFETY BRAKE FOR AN ELEVATOR STRUCTURE, THE STRUCTURE HAVING HOISTING MEANS AND BEING DISPOSED CLOSELY ADJACENT TO A VERTICAL, FIXED COLUMN; SAID POCKET COMPRISING MEANS PROVIDING AN UPWARDLY TAPERED POCKET HAVING AN OPEN SIDE ADJACENT TO ONE SIDE OF THE COLUMN; MEANS PROVIDING A LATERALLY TAPERED POCKET HAVING ITS LARGER END OPEN AND DISPOSED ADJACENT TO THE OTHER SIDE OF THE COLUMN; SAID MEANS PROVIDING SAID POCKETS BEING MOUNTED ON A SINGLE BASE MEMBER; MEANS LATERALLY SHIFTABLY MOUNTING SAID MEMBER TO THE ELEVATOR STRUCTURE IN USE; A WHEEL LOOSELY DISPOSED IN THE BOTTOM OF SAID UPWARDLY TAPERED POCKET AND NORMALLY SPACED FROM THE COLUMN; A GENERALLY HORIZONTAL BAR DISPOSED IN SAID LATERALLY TAPERED POCKET AND NORMALLY SPACED FROM SAID COLUMN; MEANS CONNECTING SAID BRAKE TO THE HOISTING MEANS;
References Cited (Backward Citations)
US1389867A
Cited
US3215231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |