US3075714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for automatically loading and changing bobbins
Assignee: Compagnie de Saint Gobain SA
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Filing: 1957-11-15
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Granted: 1963-01-29
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Expires: 1977-11-15
Abstract
No abstract record available.
Inventors
- 👤 Perraut Jean Marcel
- 👤 Michel Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:31
CPC Classifications
B; B65; B65H; B65H67/00; B65H67/04; B65H67/0405; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
AN APPARATUS FOR AUTOMATICALLY CHANGING BOBBINS UPON THE COMPLETION OF WINDING OF A STRAND THEREON COMPRISING A SUPPORTING FRAME, MEANS AT ONE END OF SAID FRAME FOR STORING AN EMPTY BOBBIN AT AN ELEVATED LEVEL, A RAMP TILTABLY MOUNTED ON SAID FRAME FOR ACCOMMODATING A SPINDLE CARRYING A CYLINDRICAL BOBBIN ONTO WHICH THE STRAND IS ADAPTED TO BE WOUND, A PLATE MOUNTED ON SAID FRAME HAVING AN UPWARDLY EXTENDING RESTRAINING SLOT FOR ONE END OF SAID SPINDLE, A ROTARY DRUM MOUNTED ON SAID FRAME IN FRICTIONAL CONTACT WITH SAID LAST-MENTIONED BOBBIN FOR IMPARTING ROTARY MOVEMENT THERETO, MEANS RESPONSIVE TO THE BOBBIN ATTAINING A PREDETERMINED DIAMETER AND THE CONSEQUENT TILTING OF THE RAMP TO A PREDETERMINED DEGREE WHEREUPON SAID SPINDLE MOVES BEYOND SAID SLOT, TO EJECT SAID COMPLETELY WOUND BOBBIN DOWN SAID RAMP WHILE RUPTURING THE STRAND THEREFROM AND TO RELEASE SAID EMPTY BOBBIN FOR POSITIONING ADJACENT TO SAID ROTARY DRUM FOR WINDING OF THE STRAND THEREONTO, AND BLOWING MEANS ACTING IN THE FIELD OF THE RUPTURED STRAND TO AUTOMATICALLY ENTRAIN THE ONCOMING PORTION OF SAID STRAND ONTO SAID EMPTY BOBBIN TO INITIATE THE WINDING OF THE STRAND THEREON.
Claim 2
Independent Claim
188 words
AN APPARATUS FOR AUTOMATICALLY CHANGING BOBBINS UPON THE COMPLETION OF WINDING OF A STRAND THEREON COMPRISING A SUPPORTING FRAME, MEANS AT ONE END OF SAID FRAME FOR STORING AN EMPTY BOBBIN AT AN ELEVATED LEVEL, A RAMP TILTABLY MOUNTED ON SAID FRAME FOR ACCOMMODATING A SPINDLE CARRYING A CYLINDRICAL BOBBIN ONTO WHICH THE STRAND IS ADAPTED TO BE WOUND, A PLATE MOUNTED ON SAID FRAME HAVING AN UPWARDLY EXTENDING RESTRAINING SLOT FOR ONE END OF SAID SPINDLE, A ROTARY DRUM MOUNTED ON SAID FRAME IN FRICTIONAL CONTACT WITH SAID LAST-MENTIONED BOBBIN FOR IMPARTING ROTARY MOVEMENT THERETO, MEANS RESPONSIVE TO THE BOBBIN ATTAINING A PREDETERMINED DIAMETER AND THE CONSEQUENT TILTING OF THE RAMP TO A PREDETERMINED DEGREE WHEREUPON SAID SPINDLE MOVES BEYOND SAID SLOT, TO EJECT SAID COMPLETELY WOUND BOBBIN DOWN SAID RAMP WHILE RUPTURING THE STRAND THEREFROM AND TO RELEASE SAID EMPTY BOBBIN FOR POSITIONING ADJACENT TO SAID ROTARY DRUM FOR WINDING OF THE STRAND THEREONTO, AND BLOWING MEANS ACTING IN THE FIELD OF THE RUPTURED STRAND TO AUTOMATICALLY ENTRAIN THE ONCOMING PORTION OF SAID STRAND ONTO SAID EMPTY BOBBIN TO INITIATE THE WINDING OF THE STRAND THEREON.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |