Patent US3793937A successfully refreshed from Google Patents.
US3793937A
Expired / Lapsed
US
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Liquid treatment and extraction apparatus
Assignee: Individual
•
Filing: 1971-10-13
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Granted: 1974-02-26
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Expires: 1991-10-13
Abstract
Abstract Apparatus and method for treating food and other products with volatile fluorocarbons employing liquid seals to prevent loss of fluorocarbon vapor.
Inventors
- 👤 S Lipoma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:10
CPC Classifications
A; A23; A23B; A23B5/00; A23B5/04; A23B5/05; A23B5/055; A23B2/00; A23B2/70; A23B2/704; A23B2/725; A23B2/729; A23B2/80; A23B2/85; A23B2/88; A23B7/00; A23B7/04; A23B7/0408; A23L; A23L19/00; A23L19/10; A23L19/12; A23L19/18; F; F25; F25D; F25D9/00; F25D9/005
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
39 words
The apparatus of claim 1 wherein said contact vessel is equipped with cooling means in the vapor space thereof to condense vapor of fluorocarbon and return it to the body of liquid fluorocarbon at the bottom of the vessel.
Claim 2
Dependent Claim
70 words
The apparatus of claim 2 wherein the entry and exit means each includes a sloping portion connected to the respective inlet and outlet of the contact vessel, the slope of each such section being downwardly from the respective inlet and outlet whereby condensed vapor escaping from the respective liquid seals flows back into the respective seal, and each such portion is also provided wiTh cooling means to condense such vapor.
Claim 3
Dependent Claim
13 words
The apparatus of claim 3 wherein the liquid of each seal is water.
Claim 4
Dependent Claim
15 words
The apparatus of claim 3 wherein the liquid of each seal is a fatty oil.
Claim 5
Dependent Claim
77 words
The apparatus of claim 5 wherein the oil seal associated with the entry means is provided with heating means to effect cooking of a food product constituting the solid substance to be treated and the contact vessel is adapted to extract oil from such solid substance, and said contact vessel is equipped with means for removing liquid fluorocarbon, purifying the same by separation of the dissolved oil from the fluorocarbon liquid, and recycling of the fluorocarbon liquid.
Claim 6
Dependent Claim
26 words
The apparatus of claim 6 wherein the apparatus is also provided with means for recycling separated oil to the oil seal associated with the entry means.
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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |