US3553059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat sealing apparatus
Assignee: SPX Flow Technology Systems Inc
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Filing: 1968-12-04
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Granted: 1971-01-05
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Expires: 1988-12-04
Abstract
Abstract ARTICLES, EITHER SINGLY OR IN GROUPS, ARE WRAPPED BY ADVANCING THE ARTICLES ALONGL A PATH INTO ONE SIDE OF A CURTAIN OF THE WRAPPING MATERIAL TO DRAW THE MATERIAL ACROSS THE LEAD AND AT LEAST PARTIALLY ALONG THE TOP AND BOTTOM SIDES OF THE ARTICLES. OVERLAPPING PORTIONS OF THE CURTAIN ARE THEN BROUGHT TOGETHER CLOSELY ADJACENT THE TRIAL SIDE OF THE ARTICLE, AND THE OVERLAPPING PORTIONS ARE SEVERED AND SEALED AT OPPOSITE SIDES OF THE SEVERANCE BY JAWS. THE JAWS HAVE AN INTERMEDIATE SEALING JAW AND SPACED CLAMPING JAWS AT OPPOSITE SIDES OF THE SEALING JAW SUPPORTED FOR LIMITED MOVEMENT RELATIVE TO THE SEALING JAW AND RELATIVE TO EACH OTHER.
Inventors
- 👤 Roger H Stohlquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:38
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/81; B29C66/816; B29C66/8161; B29C65/00; B29C65/02; B29C65/18; B29C65/22; B29C65/221; B29C65/222; B29C65/228; B29C65/229; B29C65/24; B29C65/30; B29C65/74; B29C65/743; B29C65/7433; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/343; B29C66/3432; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/70; B29C66/73; B29C66/737; B29C66/7371; B29C66/73711; B29C66/73713; B29C66/73715; B29C66/812; B29C66/8126; B29C66/81262; B29C66/81263; B29C66/814; B29C66/8141; B29C66/81411; B29C66/81415; B29C66/81419; B29C66/81421; B29C66/81422; B29C66/81427; B29C66/8145; B29C66/81457; B29C66/818; B29C66/8187; B29C66/81871; B29C66/82; B29C66/822; B29C66/8221; B29C66/8226; B29C66/83; B29C66/834; B29C66/8351; B29C66/83531; B29C66/83533; B29C66/71; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2023/10; B29K2023/12; B29K2027/00; B29K2027/06; B29K2101/00; B29K2101/12; B29K2995/00; B29K2995/0037; B29K2995/0049; B29K2995/005; B29K2995/0053; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1054; Y10T156/12; Y10T156/1313
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |