US3285114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doffing device with trigger actuated cutter means
Assignee: Fiber Industries Inc
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Filing: 1965-06-21
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Granted: 1966-11-15
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Expires: 1985-06-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Elisha Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:20
CPC Classifications
B; B65; B65H; B65H54/00; B65H54/70; B65H54/71; B65H54/86; B65H2701/00; B65H2701/30; B65H2701/31; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/6472; Y10T83/869; Y10T83/8776; Y10T83/8782
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
AN APPARATUS FOR DOFFING OR STRINGING-UP OF YARN COMPRISING IN COMBINATION A VACUUM HOSE AND A CUTTING DEVICE ATTACHED TO THE EXTREMITY OF SAID VACUUM HOSE, SAID CUTTING DEVICE CONTAINING AN APERTURE FOR THE PASSAGE OF YARN AND MEANS TO PROVIDE AN AIR OPENING TO A VACUUM SOURCE THROUGH SAID VACUUM HOSE COMPRISING A KNIFE BLADE OF SUFFICIENT SIZE LOCATED IN SAID CUTTING DEVICE SO THAT SAID BLADE CAN COMPLETELY COVER SAID APERTURE, A LEVER PIVOTALLY ATTACHED TO SAID KNIFE BLADE FOR MOVING SAID BLADE TO EXPOSED SAID APERTURE, RESILIENT MEANS LOCATED IN SUCH POSITION TO PLACE SAID KNIFE BLADE UNDER TENSION WHEN SAID BLADE IS IN A POSITION EXPOSING SAID APERTURE TO THE ATMOSPHERE A COCKING MECHANISM FOR SAID LEVER TO MAINTAIN SAID KNIFE BLADE IN A POSITION FOR EXPOSURE OF SAID APERTURE, AND A TRIGGER MECHANISM WHICH RELEASES SAID COCKING MECHANISM WHICH IN TURN RELEASES SAID LEVER PERMITTING SAID RESILIENT MEANS TO FORCE SAID KNIFE BLADE TO CUT SAID YARN PASSING THROUGH SAID APERTURE AND COVER SAID APERTURE TO CLOSE OFF THE VACUUM SOURCE TO THE ATMOSPHERE.
Claim 2
Independent Claim
179 words
AN APPARATUS FOR DOFFING OR STRINGING-UP OF YARN COMPRISING IN COMBINATION A VACUUM HOSE AND A CUTTING DEVICE ATTACHED TO THE EXTREMITY OF SAID VACUUM HOSE, SAID CUTTING DEVICE CONTAINING AN APERTURE FOR THE PASSAGE OF YARN AND MEANS TO PROVIDE AN AIR OPENING TO A VACUUM SOURCE THROUGH SAID VACUUM HOSE COMPRISING A KNIFE BLADE OF SUFFICIENT SIZE LOCATED IN SAID CUTTING DEVICE SO THAT SAID BLADE CAN COMPLETELY COVER SAID APERTURE, A LEVER PIVOTALLY ATTACHED TO SAID KNIFE BLADE FOR MOVING SAID BLADE TO EXPOSED SAID APERTURE, RESILIENT MEANS LOCATED IN SUCH POSITION TO PLACE SAID KNIFE BLADE UNDER TENSION WHEN SAID BLADE IS IN A POSITION EXPOSING SAID APERTURE TO THE ATMOSPHERE A COCKING MECHANISM FOR SAID LEVER TO MAINTAIN SAID KNIFE BLADE IN A POSITION FOR EXPOSURE OF SAID APERTURE, AND A TRIGGER MECHANISM WHICH RELEASES SAID COCKING MECHANISM WHICH IN TURN RELEASES SAID LEVER PERMITTING SAID RESILIENT MEANS TO FORCE SAID KNIFE BLADE TO CUT SAID YARN PASSING THROUGH SAID APERTURE AND COVER SAID APERTURE TO CLOSE OFF THE VACUUM SOURCE TO THE ATMOSPHERE.
References Cited (Backward Citations)
US3241234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |