US3303547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cross stretching machine for nonwoven webs
Assignee: Johnson and Johnson
•
Filing: 1964-12-01
•
Granted: 1967-02-14
•
Expires: 1984-12-01
Abstract
No abstract record available.
Inventors
- 👤 Kalwaites Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:33
CPC Classifications
D; D06; D06C; D06C3/00; D02; D02J; D02J1/00; D02J1/18; D04; D04H; D04H1/00; D04H1/70; D04H1/72; D04H1/736; D06C3/10; D06C2700/00; D06C2700/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A MACHINE FOR CROSS-STRETCHING FIBROUS WEBS COMPRISING: FIRST AND SECOND SPACED APART ROTATABLE ROLLS, A NARROWN WIDTH ENDLESS BELT EXTENDING IN A SERIES OF ADJACENT FLIGHTS BETWEEN SAID ROLLS, SAID FLIGHTS FOLLOWING DIVERGENT PATHS AS THEY EXTEND FROM THE FIRST ROLL TO THE SECOND ROLL AND CONVERGENT PATHS AS THEY RETURN FROM THE SECOND ROLL TO THE FIRST ROLL, SAID FLIGHTS HAVING PINS EXTENDING FROM THE SURFACE THEREOF, A THIRD ROLL IN CONTACT WITH SAID CONVERGENT FLIGHTS TO APPLY UNIFORM TENSION TO ALL FLIGHTS AND MEANS FOR DRIVING ONE OF SAID ROLLS WHEREBY A FIBROUS WEB PASSING FROM SAID FIRST ROLL TO SAID SECOND ROLL IS CROSSSTRETCHED UNDER UNIFORM TENSION.
Claim 2
Dependent Claim
110 words
A MACHINE FOR CROSS-STRETCHING FIBROUS WEBS COMPRISING: FIRST AND SECOND SPACED APART ROTATABLE ROLLS, A NARROWN WIDTH ENDLESS BELT EXTENDING IN A SERIES OF ADJACENT FLIGHTS BETWEEN SAID ROLLS, SAID FLIGHTS FOLLOWING DIVERGENT PATHS AS THEY EXTEND FROM THE FIRST ROLL TO THE SECOND ROLL AND CONVERGENT PATHS AS THEY RETURN FROM THE SECOND ROLL TO THE FIRST ROLL, SAID FLIGHTS HAVING PINS EXTENDING FROM THE SURFACE THEREOF, A THIRD ROLL IN CONTACT WITH SAID CONVERGENT FLIGHTS TO APPLY UNIFORM TENSION TO ALL FLIGHTS AND MEANS FOR DRIVING ONE OF SAID ROLLS WHEREBY A FIBROUS WEB PASSING FROM SAID FIRST ROLL TO SAID SECOND ROLL IS CROSSSTRETCHED UNDER UNIFORM TENSION.
References Cited (Backward Citations)
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Cited
US2627159A
Cited
GB923963A
Cited
US2974393A
Cited
US3095998A
Cited
US3110063A
Cited
US3153816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |