US3109764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing mechanism for packaging machines
Assignee: Kleer-Pak Machinery and Packaging Inc
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Filing: 1961-01-09
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Granted: 1963-11-05
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Expires: 1981-01-09
Abstract
No abstract record available.
Inventors
- 👤 Natelli Mario
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:38
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; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/432; B29C66/81; B29C66/814; B29C66/8141; B29C66/81433; B29C66/816; B29C66/8167; B29C66/8169; B65; B65B; B65B51/00; B65B51/10; B65B51/16; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/133
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
HEAT SEALING MECHANISM FOR PACKAGING MACHINERY COMPRISING PARALLEL SPACED SHAFTS, MEANS FOR HEATING AT LEAST ONE OF SAID SHAFTS, AND SEALING RINGS ON EACH SHAFT IN SUBSTANTIAL ALIGNMENT AND OPPOSING RELATIONSHIP WITH ONE ANOTHER AND ADAPTED TO FRICTIONALLY ENGAGE PACKAGING MATERIAL BETWEEN THEM FOR PRESSURE SEALING PURPOSES WHEN SAID SHAFTS ARE ROTATED, SAID RINGS BEING RELATIVELY NARROW WITH RESPECT TO SAID SHAFTS, THE RINGS ON ONE OF SAID SHAFTS BEING FIXED AND IMMOVABLE THEREON, THE RINGS ON THE OPPOSING SHAFT BEING RADIALLY MOVABLE THERON UNDER THE PRESSURE OF THE OPPOSING RING, BOTH RINGS BEING OF RIGID, HEAT-CONDUCTIVE MATERIAL, AND MEANS FOR SUPPORTING SAID RADIALLY MOVABLE RING ON SAID SHAFT.
Claim 2
Dependent Claim
109 words
HEAT SEALING MECHANISM FOR PACKAGING MACHINERY COMPRISING PARALLEL SPACED SHAFTS, MEANS FOR HEATING AT LEAST ONE OF SAID SHAFTS, AND SEALING RINGS ON EACH SHAFT IN SUBSTANTIAL ALIGNMENT AND OPPOSING RELATIONSHIP WITH ONE ANOTHER AND ADAPTED TO FRICTIONALLY ENGAGE PACKAGING MATERIAL BETWEEN THEM FOR PRESSURE SEALING PURPOSES WHEN SAID SHAFTS ARE ROTATED, SAID RINGS BEING RELATIVELY NARROW WITH RESPECT TO SAID SHAFTS, THE RINGS ON ONE OF SAID SHAFTS BEING FIXED AND IMMOVABLE THEREON, THE RINGS ON THE OPPOSING SHAFT BEING RADIALLY MOVABLE THERON UNDER THE PRESSURE OF THE OPPOSING RING, BOTH RINGS BEING OF RIGID, HEAT-CONDUCTIVE MATERIAL, AND MEANS FOR SUPPORTING SAID RADIALLY MOVABLE RING ON SAID SHAFT.
References Cited (Backward Citations)
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Cited
US2262325A
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US2385583A
Cited
US2374504A
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US2466030A
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US2893468A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |