US3259479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making curly composite fibers
Assignee: Owens Corning
•
Filing: 1962-06-22
•
Granted: 1966-07-05
•
Expires: 1982-06-22
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Tiede
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:35
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/02; C03B37/022; C03B37/023; C03B37/075; C03B37/0753; D; D02; D02G; D02G1/00; D02G1/18; C03B2203/00; C03B2203/02; C03B2203/06; C03C; C03C2213/00; C03C2213/04; Y; Y10; Y10S; Y10S425/00; Y10S425/217; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2924; Y10T428/2925; Y10T428/2933; Y10T428/2964
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
THE METHOD OF MAKING A CURLY COMPOSITE TEXTILE FIBER COMPRISING THE STEPS OF SELECTING TWO COMPARTIBLE HEAT SOFTENABLE MATERIALS HAVNG COEFFICIENTS OF EXPANSION SUFFICIENTLY DIFFERENT SO THAT COMBINATION OF SAID MATERIALS INTO A FIBER IN AN ADHERED SIDE-BY-SIDE RELATION WHILE IN A MOLTEN STATE WILL ON COOLING CAUSE THE FIBER TO CURL BACK ON ITSELF TO FORM A SERIES OF LOOPS ALONG THE LENGTH OF THE FIBER TO IMPART A GENERALLY HELICAL CONFIGURATION THERETO; FLOWING MOLTEN FORMS OF EACH OF SAID MATERIALS FROM SEPARATE ORIFICES INTO A COMMON FIBER FORMING CONE IN CONTACT WITH EACH OTHER IN A SIDE-BY-SIDE RELATION; ATTENUATING SAID COMMON FIBER FORMING CONE INTO A TEXTILE FIBER THEREBY MAINTAINING, IN COMBINATION WITH THE SURFACE TENSION OF THE COMMON STREAM THUS FORMED, THE ALIGNMENT OF SAID MATERIALS IN SAID SIDE-BY-SIDE RELATION DURING SOLIDIFICATION THAT WAS ESTABLISHED AT CONTACT IN SAID FIBER FORMING CONE; AND COOLING SAID ATTENUATED TEXTILE FIBER TO CAUSE SAID DIFFERENT COEFFICIENTS OF EXPANSION TO CURL THE FIBER BACK ON ITSELF TO FORM A SERIES LOOPS.
Claim 2
Independent Claim
170 words
THE METHOD OF MAKING A CURLY COMPOSITE TEXTILE FIBER COMPRISING THE STEPS OF SELECTING TWO COMPARTIBLE HEAT SOFTENABLE MATERIALS HAVNG COEFFICIENTS OF EXPANSION SUFFICIENTLY DIFFERENT SO THAT COMBINATION OF SAID MATERIALS INTO A FIBER IN AN ADHERED SIDE-BY-SIDE RELATION WHILE IN A MOLTEN STATE WILL ON COOLING CAUSE THE FIBER TO CURL BACK ON ITSELF TO FORM A SERIES OF LOOPS ALONG THE LENGTH OF THE FIBER TO IMPART A GENERALLY HELICAL CONFIGURATION THERETO; FLOWING MOLTEN FORMS OF EACH OF SAID MATERIALS FROM SEPARATE ORIFICES INTO A COMMON FIBER FORMING CONE IN CONTACT WITH EACH OTHER IN A SIDE-BY-SIDE RELATION; ATTENUATING SAID COMMON FIBER FORMING CONE INTO A TEXTILE FIBER THEREBY MAINTAINING, IN COMBINATION WITH THE SURFACE TENSION OF THE COMMON STREAM THUS FORMED, THE ALIGNMENT OF SAID MATERIALS IN SAID SIDE-BY-SIDE RELATION DURING SOLIDIFICATION THAT WAS ESTABLISHED AT CONTACT IN SAID FIBER FORMING CONE; AND COOLING SAID ATTENUATED TEXTILE FIBER TO CAUSE SAID DIFFERENT COEFFICIENTS OF EXPANSION TO CURL THE FIBER BACK ON ITSELF TO FORM A SERIES LOOPS.
References Cited (Backward Citations)
US1720547A
Cited
US1731260A
Cited
US1873866A
Cited
US1920366A
Cited
US1919259A
Cited
US2052269A
Cited
US2313296A
Cited
US2233597A
Cited
US2331945A
Cited
US2264245A
Cited
US2947027A
Cited
US2772518A
Cited
US2783590A
Cited
US2919970A
Cited
US2949633A
Cited
US3019078A
Cited
US2992517A
Cited
US3063094A
Cited
US3074256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |