US3625802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging apparatus
Assignee: Automated Machinery Systems Inc
•
Filing: 1969-11-25
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Granted: 1971-12-07
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Expires: 1989-11-25
Abstract
Abstract Sealing apparatus which comprises a pair of rollers mounted for receiving a plurality of sheets of thermoplastic film therebetween, means for driving at least one of said rollers to advance said thermoplastic sheets therepast, and means for heating one of said rollers to apply fusing heat to said sheets of thermoplastic film.
Inventors
- 👤 Jack C Schniepp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:10
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; B29C65/00; B29C65/02; B29C65/18; B29C65/24; B29C65/30; B29C65/305; B29C66/004; B29C66/0042; B29C66/40; B29C66/41; B29C66/43; B29C66/81; B29C66/812; B29C66/8122; B29C66/8126; B29C66/81261; B29C66/82; B29C66/822; B29C66/8221; B29C66/824; B29C66/8242; B29C66/84; B29C66/849; B65; B65B; B65B51/00; B65B51/10; B65B51/16; B29C65/78; B29C65/7802; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/83417; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1054; Y10T156/12; Y10T156/1313; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1715; Y10T156/172
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
22 words
Apparatus according to claim 11, wherein said diverging angle defined by the two second pairs of rollers is between 5* and 10*.
Claim 2
Dependent Claim
56 words
Apparatus according to claim 1, wherein said mean means for rotating said second pair of rollers includes a sprocket or the like mounted on one of said first pair of rollers, a sprocket or the like mounted on one of said second pair of rollers and a chain or the like mounted over the two sprockets.
Claim 3
Dependent Claim
41 words
Apparatus according to claim 1, wherein the guide means and the first and second pairs of rollers on each side of the packaging machine are movable toward and away from each other to seal the sides of packages of different widths.
References Cited (Backward Citations)
US2660218A
Cited
US2767941A
Cited
US3065121A
Cited
US3028294A
Cited
US3243487A
Cited
US3355337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |