US2606850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing machine and method
Assignee: Shellmar Products Corp
•
Filing: 1949-12-03
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Granted: 1952-08-12
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Expires: 1969-12-03
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Piazze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:11
CPC Classifications
B; B65; B65B; B65B51/00; B65B51/10; B65B51/24; B29; B29C; B29C65/00; B29C65/02; B29C65/14; B29C65/1429; B29C65/1445; B29C65/1448; B29C65/78; B29C65/7858; B29C65/7861; B29C65/787; B29C65/7873; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/137; B29C66/348; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/43121; B29C66/80; B29C66/81; B29C66/816; B29C66/8161; B29C66/818; B29C66/8181; B29C66/81815; B29C66/8182; B29C66/81821; B29C66/83; B29C66/836; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/834; B29C66/8341; B29C66/83421; B29C66/83423; B29L; B29L2031/00; B29L2031/712; B29L2031/7128
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN A BAG TOP SEALING MACHINE, MEANS FOR CONVEYING A FILLED BAG IN A SUBSTANTIALLY HORIZONTAL DIRECTION WITH THE BAG IN UPRIGHT POSITION AND ITS OPEN TOP UPPERMOST, MEANS FOR BRINGING OPPOSITE WALLS OF THE TOP OF THE BAG INTO FLAT FOLDED RELATION, COOLING BANDS MOUNTED FOR HORIZONTAL MOVEMENT AND ARRANGED TO ENGAGE THE BAG TOP WITH A RELATIVELY NARROW PORTION THEREOF PROJECTING ABOVE THE UPPER EDGES OF SAID BANDS, AND A RADIANT HEATING ELEMENT ARRANGED IN GENERALLY PARALLEL VERTICALLY SPACED RELATION TO THE UPPER EDGES OF SAID BANDS WHEREBY THE PROJECTING PORTION ONLY OF SAID BAG TOP IS FUSED INTO A BEAD-LIKE FORMATION UPON BEING CONVEYED BENEATH SAID HEATING ELEMENT.
Claim 2
Dependent Claim
111 words
IN A BAG TOP SEALING MACHINE, MEANS FOR CONVEYING A FILLED BAG IN A SUBSTANTIALLY HORIZONTAL DIRECTION WITH THE BAG IN UPRIGHT POSITION AND ITS OPEN TOP UPPERMOST, MEANS FOR BRINGING OPPOSITE WALLS OF THE TOP OF THE BAG INTO FLAT FOLDED RELATION, COOLING BANDS MOUNTED FOR HORIZONTAL MOVEMENT AND ARRANGED TO ENGAGE THE BAG TOP WITH A RELATIVELY NARROW PORTION THEREOF PROJECTING ABOVE THE UPPER EDGES OF SAID BANDS, AND A RADIANT HEATING ELEMENT ARRANGED IN GENERALLY PARALLEL VERTICALLY SPACED RELATION TO THE UPPER EDGES OF SAID BANDS WHEREBY THE PROJECTING PORTION ONLY OF SAID BAG TOP IS FUSED INTO A BEAD-LIKE FORMATION UPON BEING CONVEYED BENEATH SAID HEATING ELEMENT.
References Cited (Backward Citations)
US2133716A
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US2224017A
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US2236685A
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US2289618A
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US2392695A
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US2524584A
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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) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |