US4360060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollowed plate for a heat exchanger with fluid flow tubes
Assignee: Valeo SE
•
Filing: 1981-06-03
•
Granted: 1982-11-23
•
Expires: 2001-06-03
Abstract
Abstract A hollowed plate for a heat exchanger with fluid flow tubes, formed with holes into which are engaged and tightly fitted the ends of tubes of the exchanger, and being of general bulging or deflected shape, for improving the compressive strength of said hollowed plate, particularly in a radiator for the cooling circuit of a motor vehicle engine.
Inventors
- 👤 Pierre Collgon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:48
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; F28F9/0219; F28F9/0224; F28F9/0226; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/053; F28D1/05316; F28D1/05333; F28F2225/00; F28F2225/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
94 words
A hollowed tube plate for a heat exchanger having at least a water box and fluid flow tubes, the ends of which are to be engaged and tightly fitted in holes of the tube plate, said tube plate comprising: U-shaped edges provided for tight mounting on edges of the water box; a central portion of a substantially plane shape in which are formed the holes for the fitting of the tube ends; and slanting planes connecting said plane central position with said U-shaped edges, so that the tube plate has a deflected general shape.
Claim 2
Dependent Claim
94 words
A hollowed tube plate for a heat exchanger having at least a water box and fluid flow tubes, the ends of which are to be engaged and tightly fitted in holes of the tube plate, said tube plate comprising: U-shaped edges provided for tight mounting on edges of the water box; a central portion of a substantially plane shape in which are formed the holes for the fitting of the tube ends; and slanting planes connecting said plane central position with said U-shaped edges, so that the tube plate has a deflected general shape.
Claim 3
Dependent Claim
19 words
A hollowed plate according to claim 1, wherein said plate is deflected on the side of the tube nest.
Claim 4
Dependent Claim
37 words
A hollowed plate according to claim 1, wherein the edges of said holes form cylindrical collars and said collars have top portions at a level below the level of the non deflected edges portions of said plate.
Claim 5
Dependent Claim
19 words
A hollowed plate according to claim 3, wherein the top portions of said collars are at the same level.
Claim 6
Dependent Claim
18 words
A hollowed plate according to claim 3, wherein the top portions of said collars are at different levels.
Claim 7
Dependent Claim
36 words
A hollowed plate according to claim 1, wherein the edges of said holes form cylindrical collars and said collars have their top portions at the same level as the non deflected edge portions of said plate.
Claim 8
Dependent Claim
27 words
A hollowed plate according to claim 6, wherein said collars are surrounded by annular shoulders formed by folded portions of the plate and forming said top portions.
Claim 9
Dependent Claim
13 words
A hollowed plate according to claim 7, wherein said shoulders have touching edges.
Claim 10
Dependent Claim
21 words
A hollowed plate according to claim 7, wherein two transversely adjacent shoulders are connected to each other via a plane portion.
Claim 11
Dependent Claim
23 words
A hollowed plate according to claim 9, wherein said plane portion is at the same level as the top portion of said shoulders.
Claim 12
Dependent Claim
16 words
A hollowed plate according to claim 7, wherein the edges of said shoulders are not touching.
Claim 13
Dependent Claim
25 words
A hollowed plate according to claim 11, wherein said plane portion is at a lower level than that of the top portions of said shoulders.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-22 | 1986-05-24 | 1986-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-22 | 1990-05-24 | 1990-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-22 | 1994-05-24 | 1994-11-23 | $7700.00 | Window Closed / Lapsed |