Patent US3146744A successfully refreshed from Google Patents.
US3146744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary shuttle
Assignee: United Shoe Machinery Corp
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Filing: 1961-09-18
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Granted: 1964-09-01
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Expires: 1981-09-18
Abstract
No abstract record available.
Inventors
- 👤 Bradshaw Robert William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:55
CPC Classifications
D; D05; D05B; D05B57/00; D05B57/08; D05B57/10; D05B57/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A ROTARY SHUTTLE ASSEMBLY COMPRISING A TRUE SHUTTLE, A LOCKING THREAD HOUSING DISPOSED WITHIN AND ABOUT WHICH THE SHUTTLE CARRIES EACH NEEDLE LOOP WHILE PASSING ITSELF THERETHROUGH, THREAD TENSIONING MEANS ON THE HOUSING TO MAINTAIN TENSION IN THAT PORTION OF THE LOCKING THREAD EXTENDING THROUGH THE WORK, MEANS ON THE HOUSING OFFSET FROM THE AXIS THEREOF FOR ENGAGING SAID THREAD PORTION TO PREVENT ROTATION OF THE HOUSING DURING ROTATION OF THE SHUTTLE AND A COMPLETE ROW OF EVENLY SPACED BALL BEARINGS BETWEEN THE SHUTTLE AND THE THREAD CASE TO PERMIT THE SHUTTLE TO ROTATE FREELY ABOUT THE THREAD CASE WITHOUT OTHERWISE REQUIRING THE HOUSING TO BE RESTRAINED AGAINST ROTATION, IN COMBINATION WITH A THREAD GUIDE MOUNTED IN THE LOCKING THREAD HOUSING EXTENDING ALONG THE CENTRAL AXIS OF THE BALL BEARING SUBSTANTIALLY AT A MIDPOSITION IN THE HOUSING TO KEEP TENSION ON THE LOCKING THREAD UNIFORM AND TO REDUCE THE LIKELIHOOD OF SNARLING.
Claim 2
Dependent Claim
152 words
A ROTARY SHUTTLE ASSEMBLY COMPRISING A TRUE SHUTTLE, A LOCKING THREAD HOUSING DISPOSED WITHIN AND ABOUT WHICH THE SHUTTLE CARRIES EACH NEEDLE LOOP WHILE PASSING ITSELF THERETHROUGH, THREAD TENSIONING MEANS ON THE HOUSING TO MAINTAIN TENSION IN THAT PORTION OF THE LOCKING THREAD EXTENDING THROUGH THE WORK, MEANS ON THE HOUSING OFFSET FROM THE AXIS THEREOF FOR ENGAGING SAID THREAD PORTION TO PREVENT ROTATION OF THE HOUSING DURING ROTATION OF THE SHUTTLE AND A COMPLETE ROW OF EVENLY SPACED BALL BEARINGS BETWEEN THE SHUTTLE AND THE THREAD CASE TO PERMIT THE SHUTTLE TO ROTATE FREELY ABOUT THE THREAD CASE WITHOUT OTHERWISE REQUIRING THE HOUSING TO BE RESTRAINED AGAINST ROTATION, IN COMBINATION WITH A THREAD GUIDE MOUNTED IN THE LOCKING THREAD HOUSING EXTENDING ALONG THE CENTRAL AXIS OF THE BALL BEARING SUBSTANTIALLY AT A MIDPOSITION IN THE HOUSING TO KEEP TENSION ON THE LOCKING THREAD UNIFORM AND TO REDUCE THE LIKELIHOOD OF SNARLING.
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |