Patent US3342220A successfully refreshed from Google Patents.
US3342220A
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Weft changing apparatus
Assignee: Elitex Sdruzeni Podniku Textilniho Strojirenstvi
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Filing: 1965-09-01
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Granted: 1967-09-19
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Expires: 1985-09-01
Abstract
No abstract record available.
Inventors
- 👤 Bartosek Vladimir
- 👤 Janousek Vilem
- 👤 Rotrekl Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:55
CPC Classifications
D; D03; D03D; D03D45/00; D03D45/20; C; C09; C09J; C09J7/00; C09J7/10; D03D47/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
WEFT CHANGING APPARATUS FOR SUPPLYING DIFFERENT WEFT THREADS TO A LOOM, COMPRISING, IN COMBINATION, A SET OF THREAD GUIDES FOR GUIDING SAID DIFFERENT THREADS, RESPECTIVELY; SUPPORT MEANS FOR GUIDING EACH OF SAID THREAD GUIDES BETWEEN AN INOPERATIVE POSITION AND A FEEDING POSITION FOR FEEDING THE RESPECTIVE THREAD TO A WEFT INSERTING MEANS, CONTROL MEANS INCLUDING BIASSING MEANS AND RECIPROCATING MECHANICAL MEANS FOR HOLDING SAID THREAD GUIDES IN SAID FEEDING POSITION AND FOR MOVING SAID THREAD GUIDES TO SAID INOPERATIVE POSITION; A SET OF BLOCKING MEANS FOR BLOCKING MOVEMENT OF SAID THREAD GUIDES, RESPECTIVELY, FROM SAID INOPERATIVE POSITION TO SAID FEEDING POSITION; AND SELECTIVELY ACTUATED MEANS FOR OPERATING ONE SELECTED BLOCKING MEANS TO RELEASE THE RESPECTIVE SELECTED THREAD GUIDE FOR MOVEMENT BY SAID BIASING MEANS TO SAID FEEDING POSITION.
Claim 2
Dependent Claim
128 words
WEFT CHANGING APPARATUS FOR SUPPLYING DIFFERENT WEFT THREADS TO A LOOM, COMPRISING, IN COMBINATION, A SET OF THREAD GUIDES FOR GUIDING SAID DIFFERENT THREADS, RESPECTIVELY; SUPPORT MEANS FOR GUIDING EACH OF SAID THREAD GUIDES BETWEEN AN INOPERATIVE POSITION AND A FEEDING POSITION FOR FEEDING THE RESPECTIVE THREAD TO A WEFT INSERTING MEANS, CONTROL MEANS INCLUDING BIASSING MEANS AND RECIPROCATING MECHANICAL MEANS FOR HOLDING SAID THREAD GUIDES IN SAID FEEDING POSITION AND FOR MOVING SAID THREAD GUIDES TO SAID INOPERATIVE POSITION; A SET OF BLOCKING MEANS FOR BLOCKING MOVEMENT OF SAID THREAD GUIDES, RESPECTIVELY, FROM SAID INOPERATIVE POSITION TO SAID FEEDING POSITION; AND SELECTIVELY ACTUATED MEANS FOR OPERATING ONE SELECTED BLOCKING MEANS TO RELEASE THE RESPECTIVE SELECTED THREAD GUIDE FOR MOVEMENT BY SAID BIASING MEANS TO SAID FEEDING POSITION.
References Cited (Backward Citations)
US1474416A
Cited
US2814315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |