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US4517814A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for continuous direct treatment of products by means of a fluid cooling medium

Assignee: John Bean Technologies AB
•
Filing: 1984-01-04
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Granted: 1985-05-21
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Expires: 2004-01-04
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Abstract

Abstract An apparatus for continuous direct treatment of products by means of a fluid cooling medium comprises a chamber adapted to permit passage of the products. According to the invention this chamber is provided in its bottom plane with two slots spaced from each other in the direction of movement, to which slots the fluid cooling medium is adapted to be supplied in such a way that curtains will be formed at the slots, said curtains defining, together with sidewalls arranged on the sides of the bottom plane, a liquid bed formed of the fluid cooling medium on the bottom plane. The conveying means for the product consists of a perforate endless conveyor belt adapted to travel along the bottom plane of the chamber for moving the product through the liquid bed in order to effect the direct treatment of the product by means of the fluid cooling medium.

Inventors

  • 👤 Sven O. Rothstein

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 10:40
CPC Classifications
F; F25; F25D; F25D3/00; F25D3/10; F25D3/11

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 103 words
Apparatus for continuous direct treatment of products by means of a fluid cooling medium, said apparatus comprising a chamber having means therein for forming a liquid bed of the fluid cooling medium and having means for moving the products through the liquid bed in order to effect direct treatment of the products by the fluid cooling medium, said means for forming said liquid bed comprising a supporting surface beneath the bed, sidewall surfaces at opposite sides of the bed, and means for providing substantially vertically directed curtains of the fluid cooling medium at the ends of the bed for retaining the bed therebetween.
Claim 2
Dependent Claim 103 words
Apparatus for continuous direct treatment of products by means of a fluid cooling medium, said apparatus comprising a chamber having means therein for forming a liquid bed of the fluid cooling medium and having means for moving the products through the liquid bed in order to effect direct treatment of the products by the fluid cooling medium, said means for forming said liquid bed comprising a supporting surface beneath the bed, sidewall surfaces at opposite sides of the bed, and means for providing substantially vertically directed curtains of the fluid cooling medium at the ends of the bed for retaining the bed therebetween.
Claim 3
Dependent Claim 38 words
Apparatus as claimed in claim 1, wherein said means for providing curtains of said fluid cooling medium at the ends of the bed comprises means for ejecting fluid cooling medium upwardly through respective slots in said supporting surface.
Claim 4
Dependent Claim 30 words
Apparatus as claimed in claim 1, wherein said means for moving said products through the liquid bed comprises a perforate endless conveyor belt disposed to travel along said supporting surface.
Claim 5
Dependent Claim 26 words
Apparatus as claimed in claim 1, further comprising means disposed beneath said supporting surface for collecting fluid cooling medium that flows off of said supporting surface.

References Cited (Backward Citations)

US2287825A Cited
US2677248A Cited
US3114248A Cited
US3115756A Cited
US3512370A Cited
US3611737A Cited
SE362949B Cited
US3605427A Cited
US3605428A Cited
US3871186A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-05-20 1988-11-19 1989-05-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-05-20 1992-11-19 1993-05-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-05-20 1996-11-19 1997-05-21 $7700.00 Window Closed / Lapsed

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