US3913299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for enveloping and treating substances
Assignee: Alfa Laval AB
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Filing: 1974-05-13
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Granted: 1975-10-21
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Expires: 1994-05-13
Abstract
Abstract A substance being conveyed through a treatment zone is treated substantially uniformly, while enclosed in an envelope, by an apparatus comprising means for continuously supplying to said zone a tube of flexible material which is to constitute said envelope, and means for continuously filling the tube with substance to be treated, the tube being moved through said zone.
Inventors
- 👤 Lennart Arvid Stenstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:00
CPC Classifications
B; B65; B65B; B65B9/00; B65B9/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
123 words
Apparatus for heat treatment and packing of a liquid, which comprises means forming a heat treatment zone, means for continuously supplying a tube of flexible material for passage through said zone, a device for continuously filling the tube with liquid, said zone including a portion adapted to give a thin ribbon-like form to the tube passing therethrough, means for passing the liquid-filled tube through the heat treatment zone at a predetermined velocity while moving the liquid through said zone and within the tube at a velocity greater than said tube velocity, thereby providing rapid and uniform heat treatment of the liquid, and means acting on the liquid-filled tube passing from the heat treatment zone for closing and sealing the tube at spaced intervals.
Claim 2
Dependent Claim
123 words
Apparatus for heat treatment and packing of a liquid, which comprises means forming a heat treatment zone, means for continuously supplying a tube of flexible material for passage through said zone, a device for continuously filling the tube with liquid, said zone including a portion adapted to give a thin ribbon-like form to the tube passing therethrough, means for passing the liquid-filled tube through the heat treatment zone at a predetermined velocity while moving the liquid through said zone and within the tube at a velocity greater than said tube velocity, thereby providing rapid and uniform heat treatment of the liquid, and means acting on the liquid-filled tube passing from the heat treatment zone for closing and sealing the tube at spaced intervals.
Claim 3
Dependent Claim
53 words
The apparatus of claim 1, wherein said tube and liquid moving means include a plurality of members which engage the tube in sequence to compress the tube during its movement, said members being movable relative to the tube during said engagement and thereby moving the liquid within the tube at said greater velocity.
Claim 4
Dependent Claim
52 words
The apparatus of claim 2, wherein said tube and liquid moving means also include a plurality of rollers and an endless ribbon driven around said rollers, said ribbon engaging the tube opposite said members to move the tube relative to said zone, said members acting to compress the tube against said ribbon.
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) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |