Patent US3332638A successfully refreshed from Google Patents.
US3332638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractor device with brake
Assignee: DUPLEX Inc
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Filing: 1965-08-26
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Granted: 1967-07-25
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Expires: 1985-08-26
Abstract
No abstract record available.
Inventors
- 👤 James B Jessup
- 👤 Walter T Matthews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:43
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/34; B65H75/38; B65H75/44; B65H75/4418; B65H75/4428; B65H75/4434; B65H75/4436; B65H75/4442; E; E05; E05F; E05F3/00; E05F3/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
A RETRACTOR COMPRISING: A HOUSING AN AXLE MOUNTED IN SAID HOUSING FOR MOVEMENT LATERALLY OF THE AXLE AXIS; A ROTATABLE CABLE DRUM JOURNALED ON SAID AXLE; A FLEXIBLE MEMBER HAVING ONE END ATTACHED TO SAID CABLE DRUM AND ITS FREE END EXTENDING FROM SAID HOUSING; A SPIRAL SPRING WITHIN SAID HOUSING ROTATABLY BIASING SAID CABLE DRUM TO WIND SAID FLEXIBLE MEMBER AROUND ITS PERIPHERY; A ROTATABLE BRAKE DRUM JOURNALED ON SAID AXLE; A RATCHET MEANS DISPOSED SO AS TO LOCK SAID CABLE DRUM AND BRAKE DRUM TOGETHER ONLY WHEN SAID CABLE DRUM IS ROTATED IN THE DIRECTION TO WIND SAID FLEXIBLE MEMBER AROUND SAID CABLE DRUM; A BRAKE BAND SURROUNDING SAID BRAKE DRUM; MOUNTING MEANS FOR SAID BRAKE BAND DISPOSED IN SAID HOUSING IN A POSITION WHEREBY TENSION ON SAID FLEXIBLE MEMBER IMPARTED BY UNWINDING THE SAME MOVES SAID AXLE LATERALLY IN A DIRECTION TO CAUSE, SAID BRAKE BAND TO BEAR AGAINST THE PERIPHERY OF SAID BRAKE DRUM SO AS TO CREATE FRICTIONAL ENGAGEMENT BETWEEN SAID BRAKE BAND AND BRAKE DRUM IN PROPORTION TO THE AMOUNT OF TENSION ON SAID FLEXIBLE MEMBER.
Claim 2
Dependent Claim
182 words
A RETRACTOR COMPRISING: A HOUSING AN AXLE MOUNTED IN SAID HOUSING FOR MOVEMENT LATERALLY OF THE AXLE AXIS; A ROTATABLE CABLE DRUM JOURNALED ON SAID AXLE; A FLEXIBLE MEMBER HAVING ONE END ATTACHED TO SAID CABLE DRUM AND ITS FREE END EXTENDING FROM SAID HOUSING; A SPIRAL SPRING WITHIN SAID HOUSING ROTATABLY BIASING SAID CABLE DRUM TO WIND SAID FLEXIBLE MEMBER AROUND ITS PERIPHERY; A ROTATABLE BRAKE DRUM JOURNALED ON SAID AXLE; A RATCHET MEANS DISPOSED SO AS TO LOCK SAID CABLE DRUM AND BRAKE DRUM TOGETHER ONLY WHEN SAID CABLE DRUM IS ROTATED IN THE DIRECTION TO WIND SAID FLEXIBLE MEMBER AROUND SAID CABLE DRUM; A BRAKE BAND SURROUNDING SAID BRAKE DRUM; MOUNTING MEANS FOR SAID BRAKE BAND DISPOSED IN SAID HOUSING IN A POSITION WHEREBY TENSION ON SAID FLEXIBLE MEMBER IMPARTED BY UNWINDING THE SAME MOVES SAID AXLE LATERALLY IN A DIRECTION TO CAUSE, SAID BRAKE BAND TO BEAR AGAINST THE PERIPHERY OF SAID BRAKE DRUM SO AS TO CREATE FRICTIONAL ENGAGEMENT BETWEEN SAID BRAKE BAND AND BRAKE DRUM IN PROPORTION TO THE AMOUNT OF TENSION ON SAID FLEXIBLE MEMBER.
References Cited (Backward Citations)
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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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |