US3820765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray type heat exchanger
Assignee: Individual
•
Filing: 1972-05-10
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Granted: 1974-06-28
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Expires: 1992-05-10
Abstract
Abstract A heat exchanger is provided with a heat exchange assembly comprising separate sheets attached to supporting bars. The supporting bars are secured together and form a lattice suspended on spring-loaded rods, which makes it possible to adjust the size of gaps for passage of liquid. Alternative embodiments of means for securing the sheets of the heat exchange assembly to the rods are described.
Inventors
- 👤 Nikolaevich Purtov Kvan
- 👤 N Trofimov
- 👤 M Zhdanov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:22
CPC Classifications
F; F28; F28F; F28F25/00; F28F25/02; F28F25/08; F28F25/087; F28C; F28C1/00; Y; Y02; Y02B; Y02B30/00; Y02B30/70
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
132 words
A spray-type heat exchanger comprising a housing; mutually parallel supporting bars equally spaced in said housing, said bars forming a lattice; longitudinal and transverse beams disposed in said housing and securing said support bars together; a sheet heat exchange assembly vertically arranged in said housing and including sheets, each sheet being attached to a respective support bar; intermediate bars disposed above said supporting bars in said housing in such a manner as to define gaps between said supporting bars and said intermediate bars to ensure liquid flow therethrough; beams rigidly fixed inside said housing and supporting said intermediate bars; and spring-loaded rods rigidly fixed in said housing and supporting said lattice of supporting bars in suspended relation to provide for adjustment of the gap between said supporting bars and said intermediate bars.
Claim 2
Dependent Claim
132 words
A spray-type heat exchanger comprising a housing; mutually parallel supporting bars equally spaced in said housing, said bars forming a lattice; longitudinal and transverse beams disposed in said housing and securing said support bars together; a sheet heat exchange assembly vertically arranged in said housing and including sheets, each sheet being attached to a respective support bar; intermediate bars disposed above said supporting bars in said housing in such a manner as to define gaps between said supporting bars and said intermediate bars to ensure liquid flow therethrough; beams rigidly fixed inside said housing and supporting said intermediate bars; and spring-loaded rods rigidly fixed in said housing and supporting said lattice of supporting bars in suspended relation to provide for adjustment of the gap between said supporting bars and said intermediate bars.
Claim 3
Dependent Claim
28 words
A heat exchanger according to claim 1, wherein the intermediate bars each include a porous envelope to ensure uniform gaps between said intermediate bars and said supporting bars.
Claim 4
Dependent Claim
58 words
A heat exchanger according to claim 1, comprising rolls with eccentrics disposed above the upper ends of the rods carrying the lattice of the supporting bars, said rolls and said eccentrics being positioned to move the rods to increase the size of gaps between the intermediate and supporting bars up to a value necessary for washing said gaps.
Claim 5
Dependent Claim
52 words
A heat exchanger according to claim 2, wherein the supporting bars are hollow and provided with longitudinal slots on the lower surface thereof, the ends of the sheets of the heat exchange assembly including two wedge-shaped interconnected straps disposed on both sides of each sheet, said straps being inserted into said slots.
Claim 6
Dependent Claim
40 words
A heat exchanger according to claim 2, wherein said supporting bars are hollow and are provided with rectangular slots equally spaced along the axis of the bar, the edge of each sheet including L-shaped laminar straps inserted into said slots.
Claim 7
Dependent Claim
34 words
A heat exchanger according to claim 2, wherein the lower end of the supporting bar includes clamps equally spaced along the axis of the bar to receive a sheet of the heat exchange assembly.
Claim 8
Dependent Claim
30 words
A heat exchanger according to claim 2, wherein said supporting bar includes collars having arms, each sheet of the heat exchange assembly being secured under the bar between said arms.
Claim 9
Dependent Claim
37 words
A heat exchanger according to claim 1 wherein said beams are composite members including upper and lower connected parts, said supporting bars being supported by said upper parts, said upper parts being constructed of a resilient material.
Claim 10
Dependent Claim
28 words
A heat exchanger according to claim 1 comprising externally actuated means acting on said spring-loaded rods to adjust the gap between the supporting bars and said intermediate bars.
Claim 11
Dependent Claim
28 words
A heat exchanger according to claim 1 comprising means secured to said longitudinal and transverse beams and to said housing to partition the housing outside the supporting bars.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |