Patent US3558400A successfully refreshed from Google Patents.
US3558400A
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Apparatus and process for making rolls of bags
Assignee: JAMES T HASTINGS
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Filing: 1967-11-16
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Granted: 1971-01-26
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Expires: 1987-11-16
Abstract
Abstract THE MACHINE CONSISTS OF (A) A ROTATING DRUM AROUND WHICH TUBES OF POLYETHYLENE STOCK ARE LED AND HEATED AT INTERVALES TO SEAL THE TUBES INTO SEPARATE BAGS, (B) A PERFORATOR FOR MAKING LINES OF PERFORATIONS ADJACENT THE SEALS, (C) A SEPARATOR FOR TEARING A LINE OF PERFORATIONS OCCASIONALLY TO FORM STRIPS OF BAGS OF A DESIRED LENGTH, AND (D) A MECHANISM FOR WINDING EACH LENGTH OF BAGS ONTO A ROLL, (E) AN ELECTROSTATIC DEVICE BEING EMPLOYED TO AID STARTING OF EACH NEW BAG LENGTH ON A ROLL.
Inventors
- 👤 Steven J Horvath
- 👤 Willard O Burgoon
- 👤 James T Hastings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:44
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/349; B26; B26D; B26D7/00; B26D7/26; B26D7/2628; B26F; B26F1/00; B26F1/18; B26F1/20; B29C65/00; B29C65/02; B29C65/18; B29C65/22; B29C65/221; B29C65/222; B29C65/223; B29C65/228; B29C66/004; B29C66/0042; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/432; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81427; B29C66/81431; B29C66/818; B29C66/8181; B29C66/81811; B29C66/8187; B29C66/81871; B29C66/82; B29C66/822; B29C66/8221; B29C66/824; B29C66/8242; B29C66/83; B29C66/834; B29C66/8351; B29C66/83511; B29C66/83517; B29C66/90; B29C66/92; B29C66/924; B29C66/9241; B65; B65H; B65H19/00; B65H19/22; B65H19/2207; B65H19/2215; B65H19/28; B26D2007/2685; B29C65/24; B29C65/30; B29C65/305; B29C65/38; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/81411; B29C66/81415; B29C66/81417; B29C66/8341; B29C66/83421; B29C66/83431; B29C66/83433; B29K; B29K2995/00; B29K2995/0012; B29K2995/0013; B31; B31B; B31B2155/00; B31B2155/003; B31B2160/00; B31B2160/10; B31B2170/00; B31B70/00; B31B70/02; B31B70/022; B31B70/024; B31B70/60; B31B70/64; B31B70/645; B31B70/649; B31B70/74; B31B70/92; B31B70/94; B31B70/942; B31B70/946; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/414; B65H2301/41419; B65H2301/41421; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1737
Claims Analysis
Total Claims: 0
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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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |