US3632269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Appratus for producing a plastic net product
Assignee: Johnson and Johnson
•
Filing: 1969-02-14
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Granted: 1972-01-04
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Expires: 1989-02-14
Abstract
Abstract A method and apparatus for producing a plastic net product from a thermoplastic film wherein the film is embossed while at an elevated temperature with an embossing roll having a resilient surface and the film is removed from the resilient embossing surface while simultaneously being cooled and drafted.
Inventors
- 👤 Peter L Doviak
- 👤 Frank Kalwaites
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:38
CPC Classifications
B; B29; B29C; B29C55/00; B29C55/02; B29C55/10; B29C55/12; B29C55/14; B29C55/146; B29C48/00; B29C48/03; B29C48/13; B29C48/25; B29C48/30; B29D; B29D28/00; B29C48/07; B29C48/08; B29L; B29L2028/00; Y; Y10; Y10S; Y10S264/00; Y10S264/47
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
123 words
Apparatus for producing plastic net from thermoplastic film comprising: a first rotatable roll rotating at a first peripheral linear speed, means for heating said first rotatable roll, a second rotatable roll having a resilient, embossed surface in contact with said first rotatable roll and having its axis parallel to said first rotatable roll, said second rotatable roll rotating at a peripheral linear speed less than the peripheral linear speed of the first rotatable roll, means for applying pressure to the rotatable rolls whereby film passing between the rolls is embossed and gripped by said second rotatable roll and means for removing the embossed film from the second rotatable roll while simultaneously increasing the speed of the film in the direction of its length.
References Cited (Backward Citations)
US2514213A
Cited
US2748863A
Cited
US3137893A
Cited
US3007207A
Cited
US3072961A
Cited
US2957200A
Cited
US3085292A
Cited
US3129457A
Cited
US3137746A
Cited
US3208100A
Cited
US3365352A
Cited
US3430291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |