US5056590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plate heat exchanger
Assignee: CHERRY-BURRELL Corp 2400 SIXTH STREET SW CEDAR RAPIDS IA 52406 A CORP OF IA
•
Filing: 1990-03-30
•
Granted: 1991-10-15
•
Expires: 2010-03-30
Abstract
Abstract Heat exchanger plates for stacked flat plate heat exchangers include tapered collars for alignment of one plate relative to another in the stack. The tapered collar extends from the major surface portion of the plate and is tapered so as to have a constricted free end. The collar of one plate receive a collar of a neighboring plates as the plates of the stack are internested one in another. The collars are wedgingly engaged one in another to provide accurate alignment of the heat exchanger plates.
Inventors
- 👤 John C. Bohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:57
CPC Classifications
F; F28; F28F; F28F3/00; F28F3/08; F28F3/083; F28F2280/00; F28F2280/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
136 words
A heat exchanger plate apparatus, comprising: a body having opposed ends and first and second opposed major surfaces; edge means at an end of said body defining a recess for receiving guide bar means, said edge means and including a bottom portion intermediate a pair of opposed side portions; passageway means in said plate for the passage of fluid therethrough; tapered collar means surrounding at least a part of said recess, extending outwardly from said first major surface, having a first end adjacent said first major surface and an opposed free end, said collar means tapered inwardly toward said recess from said first end to said free end; and said collar means defines a passageway for receiving at least part of a collar means of another heat exchanger plate, so as to be wedgingly engaged therewith.
Claim 2
Dependent Claim
136 words
A heat exchanger plate apparatus, comprising: a body having opposed ends and first and second opposed major surfaces; edge means at an end of said body defining a recess for receiving guide bar means, said edge means and including a bottom portion intermediate a pair of opposed side portions; passageway means in said plate for the passage of fluid therethrough; tapered collar means surrounding at least a part of said recess, extending outwardly from said first major surface, having a first end adjacent said first major surface and an opposed free end, said collar means tapered inwardly toward said recess from said first end to said free end; and said collar means defines a passageway for receiving at least part of a collar means of another heat exchanger plate, so as to be wedgingly engaged therewith.
Claim 3
Dependent Claim
161 words
A heat exchanger plate apparatus, comprising: a body having opposed ends and first and second opposed major surfaces; edge means at an end of said body defining a recess for receiving guide bar means; passageway means in said plate for the passage of fluid therethrough, said passageway means comprising open channels in said body opening toward a similar adjacent plate apparatus and forming a fluid-tight seal therewith when the tapered collar means of the plate apparatus is wedgingly engaged with the adjacent plate apparatus; tapered collar means surrounding at least a part of said recess, extending outwardly from said first major surface, having a first end adjacent said first major surface and an opposed free end, said collar means tapered inwardly toward said recess from said first end to said free end thereof; and said collar means defines a passageway for receiving at least part of a collar means of another heat exchanger plate, so as to be wedgingly engaged therewith.
Claim 4
Dependent Claim
161 words
A heat exchanger plate apparatus, comprising: a body having opposed ends and first and second opposed major surfaces; edge means at an end of said body defining a recess for receiving guide bar means; passageway means in said plate for the passage of fluid therethrough, said passageway means comprising open channels in said body opening toward a similar adjacent plate apparatus and forming a fluid-tight seal therewith when the tapered collar means of the plate apparatus is wedgingly engaged with the adjacent plate apparatus; tapered collar means surrounding at least a part of said recess, extending outwardly from said first major surface, having a first end adjacent said first major surface and an opposed free end, said collar means tapered inwardly toward said recess from said first end to said free end thereof; and said collar means defines a passageway for receiving at least part of a collar means of another heat exchanger plate, so as to be wedgingly engaged therewith.
Claim 5
Independent Claim
14 words
The apparatus of claim I wherein said bottom portion has a generally trapezoidal configuration.
Claim 6
Dependent Claim
14 words
The apparatus of claim 2 wherein said edge means includes generally triangular side portions.
Claim 7
Dependent Claim
13 words
The apparatus of claim 4 wherein said side portions have converging free ends.
Claim 8
Dependent Claim
17 words
The apparatus of claim 4 wherein said side portions extend at generally right angles to the body.
Claim 9
Dependent Claim
23 words
The apparatus of claim 2 wherein said edge means includes side portions which have generally shaped ends adjacent said first major body surface.
Claim 10
Dependent Claim
17 words
The apparatus of claim 7 wherein the side portions terminate adjacent a peripheral edge of said body.
Claim 11
Dependent Claim
18 words
The apparatus of claim 7 wherein the side portions terminate remote from a peripheral edge of said body.
Claim 12
Dependent Claim
103 words
A heat exchanger plate apparatus, comprising: a body having opposed ends and first and second opposed major surfaces; edge means at an end of said body defining a recess for receiving guide bar means; passageway means in said plate for the passage of fluid therethrough; tapered channel means surrounding said recess, extending outwardly from said first major surface, having a first cross-sectional size thereat, a free end of reduced size remote from said first major surface, a tapered outer alignment surface and an inner camming surface for wedgingly engaging the alignment surface of an adjacent plate entering the channel means through said recess.
Claim 13
Dependent Claim
103 words
A heat exchanger plate apparatus, comprising: a body having opposed ends and first and second opposed major surfaces; edge means at an end of said body defining a recess for receiving guide bar means; passageway means in said plate for the passage of fluid therethrough; tapered channel means surrounding said recess, extending outwardly from said first major surface, having a first cross-sectional size thereat, a free end of reduced size remote from said first major surface, a tapered outer alignment surface and an inner camming surface for wedgingly engaging the alignment surface of an adjacent plate entering the channel means through said recess.
References Cited (Backward Citations)
US2601974A
Cited
US2610834A
Cited
US2616671A
Cited
GB1298240A
Cited
DE2741712A1
Cited
US4781248A
Cited
US4804040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-10-14 | 1995-04-15 | 1995-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-14 | 1999-04-15 | 1999-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-14 | 2003-04-15 | 2003-10-15 | $7700.00 | Window Closed / Lapsed |