Patent US3845635A successfully refreshed from Google Patents.
US3845635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase-separating spray header
Assignee: Union Carbide Industrial Gases Technology Corp
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Filing: 1972-10-24
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Granted: 1974-11-05
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Expires: 1992-10-24
Abstract
Abstract Apparatus for selectively dispensing liquid phase cryogen from a two phase cryogenic fluid, and process therefor, comprising: 1. AT LEAST ONE LIQUID SPRAY NOZZLE FOR DIRECTING A SPRAY OF LIQUID CRYOGEN UPON THE PRODUCTS TO BE REFRIGERATED, 2. AT LEAST ONE VAPOR VENTING NOZZLE FOR DIRECTING SUBSTANTIALLY ALL OF THE VAPOR PHASE CRYOGEN INTO THE SURROUNDING ATMOSPHERE, AND 3. MANIFOLD MEANS CONNECTED TO A SOURCE OF CRYOGENIC FLUID FOR CONVEYING SAID CRYOGENIC FLUID TO THE LIQUID AND VAPOR NOZZLES. The respective inlet ports of the liquid spray nozzle and the vapor venting nozzle are located in the lower and upper sections, respectively, of the manifold means. The equivalent cross-sectional area of the discharge orifice of the vapor venting nozzle is from about 1/3-2/3 of the corresponding area of the discharge orifice of the liquid spray nozzle.
Inventors
- 👤 W Perkins
- 👤 M Marchese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:58
CPC Classifications
F; F25; F25D; F25D3/00; F25D3/10; F17; F17C; F17C9/00; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0352; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
185 words
Apparatus for selectively dispensing liquidphase cryogen from a two-phase cryogenic fluid onto products to be refrigerated passing beneath said apparatus, comprising in combination: 1. at least one liquid spray nozzle having an inlet port and a discharge rate-controlling orifice for directing a spray of liquid cryogen upon the products to be refrigerated, 2. manifold means for conveying said two-phase cryogenic fluid to said spray nozzle, said manifold means being connected to a source of cryogenic fluid and having an upper and a lower section, said inlet port of said liquid spray nozzle being located in the lower section of said manifold means, and 3. at least one vapor venting nozzle for continuously directing substantially all of the vapor phase cryogen into the surrounding atmosphere, said vapor venting nozzle having an inlet port located in the upper section of said manifold means, and a discharge rate controlling orifice communicating with the surrounding atmosphere, the equivalent cross-sectional area of the discharge orifice of said vapor venting nozzle being from about 1/3 - 2/3 of the equivalent cross-sectional area of the discharge orifice of said liquid spray nozzle.
Claim 2
Dependent Claim
185 words
Apparatus for selectively dispensing liquidphase cryogen from a two-phase cryogenic fluid onto products to be refrigerated passing beneath said apparatus, comprising in combination: 1. at least one liquid spray nozzle having an inlet port and a discharge rate-controlling orifice for directing a spray of liquid cryogen upon the products to be refrigerated, 2. manifold means for conveying said two-phase cryogenic fluid to said spray nozzle, said manifold means being connected to a source of cryogenic fluid and having an upper and a lower section, said inlet port of said liquid spray nozzle being located in the lower section of said manifold means, and 3. at least one vapor venting nozzle for continuously directing substantially all of the vapor phase cryogen into the surrounding atmosphere, said vapor venting nozzle having an inlet port located in the upper section of said manifold means, and a discharge rate controlling orifice communicating with the surrounding atmosphere, the equivalent cross-sectional area of the discharge orifice of said vapor venting nozzle being from about 1/3 - 2/3 of the equivalent cross-sectional area of the discharge orifice of said liquid spray nozzle.
Claim 3
Dependent Claim
50 words
manifold means for conveying said two-phase cryogenic fluid to said spray nozzle, said manifold means being connected to a source of cryogenic fluid and having an upper and a lower section, said inlet port of said liquid spray nozzle being located in the lower section of said manifold means, and
Claim 4
Dependent Claim
50 words
manifold means for conveying said two-phase cryogenic fluid to said spray nozzle, said manifold means being connected to a source of cryogenic fluid and having an upper and a lower section, said inlet port of said liquid spray nozzle being located in the lower section of said manifold means, and
Claim 5
Dependent Claim
33 words
The spray header of claim 1 wherein the vertical separation, as viewed axially along the manifold, between said vapor nozzle inlet port and said liquid nozzle inlet port is at least 1/4 inch.
Claim 6
Dependent Claim
36 words
The spray header of claim 1 wherein the equivalent cross-sectional area of the discharge orifice of the vapor venting nozzle is about one-half of the corresponding area of the discharge orifice of the liquid spray nozzle.
Claim 7
Dependent Claim
81 words
at least one vapor venting nozzle for continuously directing substantially all of the vapor phase cryogen into the surrounding atmosphere, said vapor venting nozzle having an inlet port located in the upper section of said manifold means, and a discharge rate controlling orifice communicating with the surrounding atmosphere, the equivalent cross-sectional area of the discharge orifice of said vapor venting nozzle being from about 1/3 - 2/3 of the equivalent cross-sectional area of the discharge orifice of said liquid spray nozzle.
Claim 8
Dependent Claim
81 words
at least one vapor venting nozzle for continuously directing substantially all of the vapor phase cryogen into the surrounding atmosphere, said vapor venting nozzle having an inlet port located in the upper section of said manifold means, and a discharge rate controlling orifice communicating with the surrounding atmosphere, the equivalent cross-sectional area of the discharge orifice of said vapor venting nozzle being from about 1/3 - 2/3 of the equivalent cross-sectional area of the discharge orifice of said liquid spray nozzle.
Claim 9
Dependent Claim
25 words
The spray header of claim 1 wherein the liquid nozzle and the vapor nozzle are mounted at the bottom and top, respectively, of the manifold.
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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |