US3178794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for coiling continuous filament yarn and yarn produced thereby
Assignee: Turbo Machine Co
•
Filing: 1962-01-04
•
Granted: 1965-04-20
•
Expires: 1982-01-04
Abstract
No abstract record available.
Inventors
- 👤 George A Carruthers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:56
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
109 words
THE METHOD OF DEFORMING A CONTINUOUS FILAMENT YARN WHICH COMPRISES THE STEPS OF PROJECTING THE YARN AXIALLY BETWEEN A PAIR OF PARALEL ROLLS AT LEAST ONE OF WHICH IS NOT GREATER THAN 1/4" IN DIAMETER INTO A SPACE DEFINED BY A PAIR OF PARALLEL OPPOSED GUIDE SURFACES SPACED APART BETWEEN ONE AND TWO TIMES THE RADIUS OF SAID LAST MENTIONED ROLL AND INTO IMPINGEMENT WITH AN OBSTRUCTION DISPOSED IN SAID SPACE TO THEREBY FORM THE YARN FILAMENT INTO A SUBSTANTIALLY UNIFORM HELICAL COIL HAVING A DIAMETER SUBSTANTIALLY EQUAL TO THE SPACING OF SAID GUIDE SURFACES AND WHILE THE YARN IS SO COILED SUBJECTING IT TO A STRESS RELIEVING OPERATION.
Claim 2
Independent Claim
109 words
THE METHOD OF DEFORMING A CONTINUOUS FILAMENT YARN WHICH COMPRISES THE STEPS OF PROJECTING THE YARN AXIALLY BETWEEN A PAIR OF PARALEL ROLLS AT LEAST ONE OF WHICH IS NOT GREATER THAN 1/4" IN DIAMETER INTO A SPACE DEFINED BY A PAIR OF PARALLEL OPPOSED GUIDE SURFACES SPACED APART BETWEEN ONE AND TWO TIMES THE RADIUS OF SAID LAST MENTIONED ROLL AND INTO IMPINGEMENT WITH AN OBSTRUCTION DISPOSED IN SAID SPACE TO THEREBY FORM THE YARN FILAMENT INTO A SUBSTANTIALLY UNIFORM HELICAL COIL HAVING A DIAMETER SUBSTANTIALLY EQUAL TO THE SPACING OF SAID GUIDE SURFACES AND WHILE THE YARN IS SO COILED SUBJECTING IT TO A STRESS RELIEVING OPERATION.
Claim 3
Dependent Claim
106 words
APPARATUS FOR COILING FILAMENTARY MATERIAL WHICH COMPRISES A PAIR OF PARALLEL SUBSTANTIALLY TANGENTIAL FEED ROLLS AT LEAST ONE OF WHICH IS NOT GREATER THEN 1/4" IN DIAMETER AND MEANS PRESENTING RELATIVELY NON-YIELDING PLANE SURFACES DISPOSED ADJACENT THE NIP OF THE ROILLS PARALLEL TO THEIR PLANE OF TANGENCY AND SPACED APART BETWEEN ONE AND TWO TIMES THE RADIUS OF SAID LAST MENTIONED ROLL RESPECTIVELY ENGAGING THE ROLLS FOR FRICTIONALLY RETAINING ADJACENT THE ROLL NIP A MASS OF THE MATERIAL AFTER PASSING SAID NIP TO THEREBY CAUSE THE SUCCEEDING MATERIAL TO FORM A HELICAL COIL, THE DIAMETER OF WHICH IS SUBSTANTIALLY EQUAL TO THE SPACING OF SAID SURFACES.
Claim 4
Dependent Claim
106 words
APPARATUS FOR COILING FILAMENTARY MATERIAL WHICH COMPRISES A PAIR OF PARALLEL SUBSTANTIALLY TANGENTIAL FEED ROLLS AT LEAST ONE OF WHICH IS NOT GREATER THEN 1/4" IN DIAMETER AND MEANS PRESENTING RELATIVELY NON-YIELDING PLANE SURFACES DISPOSED ADJACENT THE NIP OF THE ROILLS PARALLEL TO THEIR PLANE OF TANGENCY AND SPACED APART BETWEEN ONE AND TWO TIMES THE RADIUS OF SAID LAST MENTIONED ROLL RESPECTIVELY ENGAGING THE ROLLS FOR FRICTIONALLY RETAINING ADJACENT THE ROLL NIP A MASS OF THE MATERIAL AFTER PASSING SAID NIP TO THEREBY CAUSE THE SUCCEEDING MATERIAL TO FORM A HELICAL COIL, THE DIAMETER OF WHICH IS SUBSTANTIALLY EQUAL TO THE SPACING OF SAID SURFACES.
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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) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |