US3284987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing device
Assignee: HICKORY FOUNDRY AND MACHINE CO
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Filing: 1963-03-18
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Granted: 1966-11-15
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Expires: 1983-03-18
Abstract
No abstract record available.
Inventors
- 👤 Carl L Sigmon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:18
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/24; B29C65/30; B29C65/305; B29C65/74; B29C65/745; B29C65/7453; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/43121; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81427; B29C66/81431; B29C66/8145; B29C66/81457; B29C66/816; B29C66/8161; B29C66/82; B29C66/822; B29C66/8221; B29C66/8227; B29C66/824; B29C66/8242; B29C66/83; B29C66/832; B29C66/8324; B29C66/84; B29C66/841; B29C66/8412; B29C66/849; B29C66/87; B29C66/874; B29C66/8746; B65; B65B; B65B51/00; B65B51/10; B65B51/14; B65B51/146; B29C66/818; B29C66/8187; B29C66/81871
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
153 words
AN AUTOMATIC SEALING MACHINE FOR HEAT SEALING AND TRIMMING ENDS OF THERMOPLASTIC BAGS COMPRISING AN INCLINED BAG SUPPORTING SLIDEWAY, A HEAT SEALING AND TRIMMING ELEMENT ACTING TRANSVERSELY OF SAID SLIDEWAY AND MOVABLE BETWEEN A BAG SEALING AND TRIMMING POSITION AT SAID SLIDEWAY FOR SEALING AND TRIMMING THE ENDS OF BAGS AND AN INOPERATIVE POSITION SPACED FROM SAID SLIDEWAY, AN ADDITIONAL HEAT SEALING ELEMENT ASSOCIATED FOR MOVEMENT WITH SAID HEAT SEALING AND TRIMMING ELEMENT FOR ADDITIONALLY SEALING SAID BAGS INWARDLY OF THEIR TRIMMED ENDS, AUTOMATIC MEANS FOR MOVING SAID HEAT SEALING AND TRIMMING ELEMENT AND SAID ADDITIONAL HEAT SEALING ELEMENT BETWEEN SAID SEALING POSITION AND SAID INOPERATIVE POSITION, GATE MEANS ASSOCIATED WITH SAID SLIDEWAY AT A SPACING FROM SAID HEAT SEALING AND TRIMMING ELEMENT TO RETAIN BAGS IN POSITION FOR SEALING AND BEING OPENABLE TO ALLOW SEALED BAGS TO CONTINUE DOWN SAID SLIDEWAY, AND GATE OPERATING MEANS FOR OPENING AND CLOSING SAID GATE MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |