US3157440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous raw material feeding arrangements for spinning machines
Assignee: Nihon Spindle Manufacturing Co Ltd
•
Filing: 1962-01-22
•
Granted: 1964-11-17
•
Expires: 1982-01-22
Abstract
No abstract record available.
Inventors
- 👤 Hijiya Kenji
- 👤 Nakano Yasuhiro
- 👤 Kaino Ichisaburo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:57
CPC Classifications
D; D01; D01G; D01G23/00; D01G23/02; D01G23/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A FIBROUS MATERIAL FEEDING MEANS COMPRISING A DUCT, THROUGH WHICH SAID FIBROUS MATERIAL IS CONVEYED BY MEANS OF AN AIR STREAM, AND A RESISTING BLOCK POSITIONED AT A BRANCHING POINT OF SAID DUCT TO RECEIVING MEANS SO AS TO DIRECT A PORTION OF SAID MATERIAL TO SAID RECEIVING MEANS, SAID RESISTING BLOCK HAVING A CONTINUOUS FRONT WALL ON THE SIDE OF AIR-FIBER IMPINGEMENT AND BEING POSITIONED AT AN INTERMEDIATE CROSS-SECTION OF SAID DUCT SO AS TO DEFLECT AIR WHILE DEFINING UPPER AND LOWER CHANNELS FOR FLUID FLOW ABOUT SAID RESISTING BLOCK AND DEFINING A SUBSIDIARY PASSAGE COMMUNICATING SAID DUCT WITH SAID RECEIVING MEANS ALONG THE REAR WALL OF SAID RESISTING BLOCK.
Claim 2
Dependent Claim
111 words
A FIBROUS MATERIAL FEEDING MEANS COMPRISING A DUCT, THROUGH WHICH SAID FIBROUS MATERIAL IS CONVEYED BY MEANS OF AN AIR STREAM, AND A RESISTING BLOCK POSITIONED AT A BRANCHING POINT OF SAID DUCT TO RECEIVING MEANS SO AS TO DIRECT A PORTION OF SAID MATERIAL TO SAID RECEIVING MEANS, SAID RESISTING BLOCK HAVING A CONTINUOUS FRONT WALL ON THE SIDE OF AIR-FIBER IMPINGEMENT AND BEING POSITIONED AT AN INTERMEDIATE CROSS-SECTION OF SAID DUCT SO AS TO DEFLECT AIR WHILE DEFINING UPPER AND LOWER CHANNELS FOR FLUID FLOW ABOUT SAID RESISTING BLOCK AND DEFINING A SUBSIDIARY PASSAGE COMMUNICATING SAID DUCT WITH SAID RECEIVING MEANS ALONG THE REAR WALL OF SAID RESISTING BLOCK.
References Cited (Backward Citations)
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Cited
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US1729527A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |