US3148495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for doffing spinning frames
Assignee: FLAKTAIR Inc
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Filing: 1961-01-18
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Granted: 1964-09-15
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Expires: 1981-01-18
Abstract
No abstract record available.
Inventors
- 👤 Jr James F King
- 👤 Donald A Sloan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:53
CPC Classifications
D; D01; D01H; D01H9/00; D01H9/02; D01H9/08; D01H9/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A DEVICE FOR SUCCESSIVELY DOFFING BOBBINS FROM A ROW OF UPRIGHT SPINDLES SUPPORTED UPON A MACHINE COMPRISING A LIFTER ARM MOVABLE INTO A POSITION TO ENGAGE EACH INDIVIDUAL BOBBIN, THE FRONT END OF SAID LIFTER ARM BEING ENGAGABLE WITH SAID BOBBIN AND THE REAR END THEREOF BEING PIVOTALLY MOUNTED ABOUT A HORIZONTAL AXIS FOR PIVOTAL MOVEMENT OF SAID LIFTER ARM IN A VERTICAL PLANE, A LEVER MOUNTED FOR PIVOTAL MOVEMENT ABOUT A HORIZONTAL AXIS AND LOCATED BELOW SAID LIFTER ARM AND ENGAGED WITH THE UNDERSIDE OF SAID LIFTER ARM, A LATCH MECHANISM FOR HOLDING SAID LEVER IN A LATCHED POSITION, SPRING MEANS, MEANS LOADING SAID SPRING MEANS TO ESTABLISH A POTENTIAL BOBBIN LIFT-OFF FORCE WHICH IS APPLIED IN AN UPWARD DIRECTION AGAINST SAID LEVER WHEN IN SAID LATCHED POSITION, AND MEANS RELEASING SAID LATCH MECHANISM WHEN THE FORCE ESTABLISHED IN SAID SPRING MEANS REACHES A PREDETERMINED MAGNITUDE TO THEREBY EFFECT A RELEASE OF SAID LEVER AND SIMULTANEOUS APPLICATION OF THE FORCE ESTABLISHED IN SAID SPRING MEANS THROUGH SAID LEVER TO SAID LIFTER ARM AND THENCE TO A BOBBIN ENGAGED BY THE LATTER IN THE FORM OF AN UPWARD IMPACT.
Claim 2
Independent Claim
189 words
A DEVICE FOR SUCCESSIVELY DOFFING BOBBINS FROM A ROW OF UPRIGHT SPINDLES SUPPORTED UPON A MACHINE COMPRISING A LIFTER ARM MOVABLE INTO A POSITION TO ENGAGE EACH INDIVIDUAL BOBBIN, THE FRONT END OF SAID LIFTER ARM BEING ENGAGABLE WITH SAID BOBBIN AND THE REAR END THEREOF BEING PIVOTALLY MOUNTED ABOUT A HORIZONTAL AXIS FOR PIVOTAL MOVEMENT OF SAID LIFTER ARM IN A VERTICAL PLANE, A LEVER MOUNTED FOR PIVOTAL MOVEMENT ABOUT A HORIZONTAL AXIS AND LOCATED BELOW SAID LIFTER ARM AND ENGAGED WITH THE UNDERSIDE OF SAID LIFTER ARM, A LATCH MECHANISM FOR HOLDING SAID LEVER IN A LATCHED POSITION, SPRING MEANS, MEANS LOADING SAID SPRING MEANS TO ESTABLISH A POTENTIAL BOBBIN LIFT-OFF FORCE WHICH IS APPLIED IN AN UPWARD DIRECTION AGAINST SAID LEVER WHEN IN SAID LATCHED POSITION, AND MEANS RELEASING SAID LATCH MECHANISM WHEN THE FORCE ESTABLISHED IN SAID SPRING MEANS REACHES A PREDETERMINED MAGNITUDE TO THEREBY EFFECT A RELEASE OF SAID LEVER AND SIMULTANEOUS APPLICATION OF THE FORCE ESTABLISHED IN SAID SPRING MEANS THROUGH SAID LEVER TO SAID LIFTER ARM AND THENCE TO A BOBBIN ENGAGED BY THE LATTER IN THE FORM OF AN UPWARD IMPACT.
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |