Patent US3851751A successfully refreshed from Google Patents.
US3851751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming, filling and sealing packages
Assignee: RA Jones and Co Inc
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Filing: 1972-04-26
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Granted: 1974-12-03
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Expires: 1992-04-26
Abstract
Abstract Continuous motion apparatus for forming, filling and sealing pouches in which a web of material is folded longitudinally upon itself, transversely sealed at spaced locations, cut into individual pouches and carried by vacuum carriers through opening, filling, sealing and depositing into product buckets of a cartoner. The pouches are conveyed in part by an endless chain having a plurality of vacuum operated devices spaced along the chain with tubing serially interconnecting the vacuum devices and means for applying vacuum to the devices over at least a portion of their excursion.
Inventors
- 👤 W Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:50
CPC Classifications
B; B65; B65B; B65B3/00; B65B3/02; B65B43/00; B65B43/26; B65B43/30
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
98 words
Conveyor apparatus comprising, an endless chain, means for driving said chain in an endless path, a plurality of valve bodies mounted on said chain in spaced relation, vacuum operated devices carried by said bodies and operable by said bodies upon evacuation of said bodies to support articles, tubing serially interconnecting said bodies and forming an endless path for evacuating all valve bodies, and means including a vacuum source whose location is fixed relative to the path of said chain for engaging said bodies sequentially to apply vacuum to said bodies over at least a portion of their excursion.
Claim 2
Dependent Claim
98 words
Conveyor apparatus comprising, an endless chain, means for driving said chain in an endless path, a plurality of valve bodies mounted on said chain in spaced relation, vacuum operated devices carried by said bodies and operable by said bodies upon evacuation of said bodies to support articles, tubing serially interconnecting said bodies and forming an endless path for evacuating all valve bodies, and means including a vacuum source whose location is fixed relative to the path of said chain for engaging said bodies sequentially to apply vacuum to said bodies over at least a portion of their excursion.
Claim 3
Dependent Claim
61 words
A conveyor according to claim 1 further comprising, at least two sprockets, said chain passing over said sprockets in an endless path, a spider having a plurality of arms connected to a vacuum source and mounted on one of said sprockets for rotation therewith, said arms being engageable with said valve bodies to evacuate said bodies as each passes said spider.
References Cited (Backward Citations)
US3191522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |