Patent US3360416A successfully refreshed from Google Patents.
US3360416A
Expired / Lapsed
US
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Rotary sealing devices for effecting transverse seals
Assignee: Pratt Manufacturing Corp
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Filing: 1964-07-08
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Granted: 1967-12-26
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Expires: 1984-07-08
Abstract
No abstract record available.
Inventors
- 👤 Richard H Cochrane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:28
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/80; B29C66/81; B29C66/816; B29C66/8161; B29C66/82; B29C66/822; B29C66/8221; B29C66/83; B29C66/834; B29C66/8351; B29C66/83511; B29C66/83517; B29C66/84; B29C66/841; B29C66/8412; B29C66/851; B29C66/8511; B29C66/90; B29C66/98; B29C2795/00; B29C2795/002; B29C66/8222; B29C66/8223
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
IN APPARATUS FOR EFFECTING TRANVERSE SEALS AT PREDETERMINED LONGITUDINALLY SPACED LOCATIONS ON A CONTINUOUS MULTI-PLY WEB OF MATERIAL WHEREIN THERE IS A SEALING ROTOR HAVING SPACED SEALING STATIONS FORMING ITS PERIPHERY; MEANS SUPPORTING SAID STATIONS FOR MOVEMENT RADIALLY OF SAID ROTOR; MEANS FOR EFFECTING SAID RADIAL MOVEMENT TO VARY THE PERIPHERAL DISTANCE BETWEEN SEALING STATIONS AND THE EFFECTIVE DIAMETER OF THE ROTOR; FLEXIBLE BELT MEANS COOPERABLE WITH THE OUTSIDE OF THE WEB AS IT PASSES AROUND THE ROTOR FOR APPLYING SEALING PRESSURE THERETO THROUGHOUT THE SEALING OPERATION; AND MEANS FOR SUPPORTING AND GUIDING SAID FLEXIBLE BELT MEANS, SAID SUPPORTING AND GUIDING MEANS INCLUDING A DELIVERY ROLLER POSITIONED FOR COACTION WITH THE ROTOR, A TAKE OFF ROLLER POSITIONED FOR COACTION WITH THE ROTOR, AND SWINGABLE ARMS SUPPORTING SAID DELIVERY AND TAKE OFF ROLLERS, AND A COMMON MEANS FOR SWINGING SAID ARMS SIMULTANEOUSLY TO CONTROL THE POSITION OF THE ROLLERS IN ACCORDANCE WITH THE ADJUSTED DIAMETER OF THE SEALING ROTOR.
Claim 2
Dependent Claim
158 words
IN APPARATUS FOR EFFECTING TRANVERSE SEALS AT PREDETERMINED LONGITUDINALLY SPACED LOCATIONS ON A CONTINUOUS MULTI-PLY WEB OF MATERIAL WHEREIN THERE IS A SEALING ROTOR HAVING SPACED SEALING STATIONS FORMING ITS PERIPHERY; MEANS SUPPORTING SAID STATIONS FOR MOVEMENT RADIALLY OF SAID ROTOR; MEANS FOR EFFECTING SAID RADIAL MOVEMENT TO VARY THE PERIPHERAL DISTANCE BETWEEN SEALING STATIONS AND THE EFFECTIVE DIAMETER OF THE ROTOR; FLEXIBLE BELT MEANS COOPERABLE WITH THE OUTSIDE OF THE WEB AS IT PASSES AROUND THE ROTOR FOR APPLYING SEALING PRESSURE THERETO THROUGHOUT THE SEALING OPERATION; AND MEANS FOR SUPPORTING AND GUIDING SAID FLEXIBLE BELT MEANS, SAID SUPPORTING AND GUIDING MEANS INCLUDING A DELIVERY ROLLER POSITIONED FOR COACTION WITH THE ROTOR, A TAKE OFF ROLLER POSITIONED FOR COACTION WITH THE ROTOR, AND SWINGABLE ARMS SUPPORTING SAID DELIVERY AND TAKE OFF ROLLERS, AND A COMMON MEANS FOR SWINGING SAID ARMS SIMULTANEOUSLY TO CONTROL THE POSITION OF THE ROLLERS IN ACCORDANCE WITH THE ADJUSTED DIAMETER OF THE SEALING ROTOR.
References Cited (Backward Citations)
US2815063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |