US3116587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doffing mechanism
Assignee: Willcox and Gibbs Sewing Machine Co
•
Filing: 1962-12-19
•
Granted: 1964-01-07
•
Expires: 1982-12-19
Abstract
No abstract record available.
Inventors
- 👤 Buis Edwin O Du
- 👤 Edward L Cucksey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:22
CPC Classifications
D; D01; D01H; D01H9/00; D01H9/02; D01H9/08; D01H9/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A POP-UP DOFFING DEVICE FOR BREAKING THE DRIVING CONNECTION TO AN DOFFING WOUND BOBBINS FROM A ROW OF PARALLEL SPINDLES ON A TEXTILE MACHINE COMPRISING DOFFING MEANS, MEANS MOUNTING THE DOFFING MEANS TO MOVE ALONG SAID ROW OF PARALLEL SPINDLES TO REMOVE WOUND BOBBINS FROM SAID SPINDLES, SAID DOFFING MEANS INCLUDING AND EJECTOR ELEMENT ADAPTED TO BE LOCATED BELOW THE WOUND BOBBIN AND NORMALLY URGED BY SPRING MEANS TO A RAISED POSITION, MEANS HOLDING SAID EJECTOR ELEMENT IN SAID POSITION BELOW THE BOBBIN AND AGAINST THE ACTION OF THE SPRING MEANS, AND CAM MEANS CONTROLLED BY THE POSITION OF THE SPINDLE FOR POSITIVELY MOVING SAID EJECTOR ELEMENT UPWARDLY TO BREAK THE DRIVE BETWEEN THE BOBBIN AND SPINDLE AND THEREAFTER RELEASING THE LAST-NAMED MEANS WHEREBY SAID SPRING MOVES THE EJECTOR ELEMENT REPIDLY UPWARD TO EJECT THE WOUND BOBBIN FROM THE SPINDLE.
Claim 2
Dependent Claim
140 words
A POP-UP DOFFING DEVICE FOR BREAKING THE DRIVING CONNECTION TO AN DOFFING WOUND BOBBINS FROM A ROW OF PARALLEL SPINDLES ON A TEXTILE MACHINE COMPRISING DOFFING MEANS, MEANS MOUNTING THE DOFFING MEANS TO MOVE ALONG SAID ROW OF PARALLEL SPINDLES TO REMOVE WOUND BOBBINS FROM SAID SPINDLES, SAID DOFFING MEANS INCLUDING AND EJECTOR ELEMENT ADAPTED TO BE LOCATED BELOW THE WOUND BOBBIN AND NORMALLY URGED BY SPRING MEANS TO A RAISED POSITION, MEANS HOLDING SAID EJECTOR ELEMENT IN SAID POSITION BELOW THE BOBBIN AND AGAINST THE ACTION OF THE SPRING MEANS, AND CAM MEANS CONTROLLED BY THE POSITION OF THE SPINDLE FOR POSITIVELY MOVING SAID EJECTOR ELEMENT UPWARDLY TO BREAK THE DRIVE BETWEEN THE BOBBIN AND SPINDLE AND THEREAFTER RELEASING THE LAST-NAMED MEANS WHEREBY SAID SPRING MOVES THE EJECTOR ELEMENT REPIDLY UPWARD TO EJECT THE WOUND BOBBIN FROM THE SPINDLE.
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) | 1967-01-06 | 1967-07-08 | 1968-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-06 | 1971-07-08 | 1972-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-06 | 1975-07-08 | 1976-01-07 | $7700.00 | Window Closed / Lapsed |