US3226955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for feeding yarn to a knitting machine
Assignee: LAWSON ENGINEERING Co
•
Filing: 1963-04-25
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Granted: 1966-01-04
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Expires: 1983-04-25
Abstract
No abstract record available.
Inventors
- 👤 Robert H Lawson
- 👤 John B Lawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:05
CPC Classifications
D; D04; D04B; D04B15/00; D04B15/38; D04B15/54; D04B15/58; D04B15/48; D04B15/488
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
IN A CIRCULAR KNITTING MACHINE, THE COMBINATION COMPRISING A NEEDLE CYLINDER, A COMPLEMENT OF NEEDLES OPERATIVELY MOUNTED IN SAID CYLINDER, AND MEANS OUTSIDE THE NEEDLE CIRCLE PROVIDED WITH A YARN GUIDE OPENING DISPOSED SO THAT YARN PASSING THROUGH SAID OPENING APPROACHES SAID NEEDLES ALONG A LINE SUBSTANTIALLY TANGENT TO THE NEEDLE CIRCLE.
Claim 2
Dependent Claim
140 words
IN COMBINATION WITH A KNITTING MACHINE HAVING STITCH CONTROL CAMS AND A NEEDLE CYLINDER SHIFTABLE RELATIVE TO EACH OTHER AXIALLY OF THE NEEDLE CYLINDER FOR VARYING THE STITCH LENGTH THEREBY TO EFFECTIVELY FASHION THE WORK, A YARN FEEDER FOR POSITIVELY DELIVERING YARN TO THE NEEDLES OF THE MACHINE INCLUDING A SPOOL WITH PARTS ANGULARLY MOVABLE RELATIVE TO EACH OTHER, A PLURALITY OF ELEMENTS RADIALLY SHIFTABLE IN RESPONSE TO SAID MOVEMENT FOR VARYING THE EFFECTIVE DIAMETER OF SAID SPOOL AND THEREBY THE RATE OF YARN FEED, AND SPOOL CONTROL MEANS OPERABLE IN PREDETERMINED TIMED RELATION TO SAID AXIAL SHIFTING MOVEMENT OF THE NEEDLE CYLINDER RELATIVE TO THE STITCH CONTROL CAMS FOR VARYING THE ANGULAR RELATION BETWEEN SAID PARTS THEREBY TO VARY THE EFFECTIVE DIAMETER OF SAID SPOOL AND THEREBY THE RATE OF YARN DELIVERY AS REQUIRED TO EFFECTIVELY FASHION THE WORK.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |