US4763727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel heat exchanger
Assignee: Mahle Behr GmbH and Co KG
•
Filing: 1986-12-10
•
Granted: 1988-08-16
•
Expires: 2006-12-10
Abstract
Abstract A panel heat exchanger is provided that has a plate made of a heat-conducting material and at least one pipe connected with it, this pipe having a meandering shape, and through which a heat exchange medium flows. The plate is provided with slots the width of which is adapted to the diameter of the pipe. The pipe is inserted into the slots approximately flush with the plate and is held by deformations extending transversely to its longitudinal axis at the slot edges in a form-fitting way.
Inventors
- 👤 Walter Kreuzer
- 👤 Kurt Bubeck
- 👤 Karl H. Staffa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:17
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/14; F28F1/22; B; B21; B21D; B21D53/00; B21D53/02; B21D53/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49366; Y10T29/49368
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
89 words
A panel heat exchanger comprising: heat conducting plate means having slot means therein which extend between oppositely facing planar surface sections of the plate means; and pipe means for carrying heat exchange medium, said pipe means including tubular wall means disposed in the slot means with tubular wall portions extending outwardly of the slot means beyond both planar surface sections of the plate means, said pipe means being secured to the plate means by deformation of the tubular wall means clampingly engaging the plate means at the slot means.
Claim 2
Dependent Claim
89 words
A panel heat exchanger comprising: heat conducting plate means having slot means therein which extend between oppositely facing planar surface sections of the plate means; and pipe means for carrying heat exchange medium, said pipe means including tubular wall means disposed in the slot means with tubular wall portions extending outwardly of the slot means beyond both planar surface sections of the plate means, said pipe means being secured to the plate means by deformation of the tubular wall means clampingly engaging the plate means at the slot means.
Claim 3
Dependent Claim
25 words
A panel heat exchanger according to claim 1, wherein said slot means have a width that is smaller than a diameter of the pipe means.
Claim 4
Dependent Claim
21 words
A panel heat exchanger according to claim 2, wherein the deformations have creases that overlap opposite edges of said slot means.
Claim 5
Dependent Claim
45 words
A panel heat exchanger according to claim 3, wherein the slot means end spaced from edges of the plate means and wherein at least two connecting ends of said pipe means are led out of the plane of the plate means bent at right angles.
Claim 6
Dependent Claim
24 words
A panel heat exchanger according to claim 4, wherein the pipe means has a serpentine shape with straight legs extending parallel to one another.
Claim 7
Dependent Claim
43 words
A panel heat exchanged according to claim 5, wherein at least a portion of said slot means are parallel slots, and wherein said pipe means has connecting bends which extend out of the plane of the plate means bent at approximately right angles.
Claim 8
Dependent Claim
21 words
A panel heat exchanger according to claim 6, wherein the creases are provided continuously on both sides of the plate means.
Claim 9
Dependent Claim
51 words
A panel heat exchanger according to claim 4, wherein the slot means are interrupted by transverse webs which are deformed in a semicircular shape by insertion of the pipe means, and wherein said pipe means has creases only on a side of the plate means that is opposite the transverse webs.
Claim 10
Dependent Claim
26 words
A panel heat exchanger according to claim 4, wherein the deformations are provided along the pipe means at discrete points which are separated from one another.
Claim 11
Dependent Claim
35 words
A panel heat exchanger according to claim 9, wherein the adjacent deformations are arranged alternately on one or the other side of the pipe means that projects out of the plane of the plate means.
Claim 12
Dependent Claim
42 words
A panel heat exchanger according to claim 10, wherein the pipe means has a serpentine shape and the slot means has a corresponding serpentine shape, and wherein bends of the pipe means are received approximately flush to the plane of the plate.
References Cited (Backward Citations)
CA496027A
Cited
US1737759A
Cited
GB348358A
Cited
DE575272C
Cited
US2171790A
Cited
US2567716A
Cited
US2666981A
Cited
US2722732A
Cited
US2823522A
Cited
US2913806A
Cited
US2877631A
Cited
FR1171814A
Cited
US3258204A
Cited
FR1498525A
Cited
US3460613A
Cited
US3827485A
Cited
US3858647A
Cited
US4122830A
Cited
GB1530925A
Cited
US4182013A
Cited
US4149524A
Cited
JPS5772737A
Cited
DE8304603U1
Cited
DE3308329A1
Cited
EP0157370A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-16 | 1992-02-15 | 1992-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-16 | 1996-02-15 | 1996-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-16 | 2000-02-15 | 2000-08-16 | $7700.00 | Window Closed / Lapsed |