Patent US4960169A successfully refreshed from Google Patents.
US4960169A
Expired / Lapsed
US
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Baffle for tubular heat exchanger header
Assignee: Modine Manufacturing Co
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Filing: 1989-06-20
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Granted: 1990-10-02
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Expires: 2009-06-20
Abstract
Abstract The locating problems of endwise insertion of baffles into tubular heat exchanger headers and/or weakness problems resulting from slotting tubular heat exchanger headers for receipt of baffles are avoided in a heat exchanger including opposed headers 10, 12, at least one of which is a header tube 12 having a plurality of slots 26, 30 in a side thereof. A plurality of generally parallel tubes 14 extend between the headers 10, 12 and enter an associated one of the slots 26, 30, while a baffle is located in the header tube 12 and divides the same into two discrete sections and includes a collar 40 about an end 28 of one of the parallel tubes 14.
Inventors
- 👤 Dennis Granetzke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:52
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; F28F9/0202; F28F9/0204; F28F9/0209; F28F9/0212; Y; Y10; Y10S; Y10S165/00; Y10S165/454; Y10S165/471; Y10S165/481; Y10S165/482
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
59 words
A heat exchanger including: opposed headers, at least one of which is a header tube having a plurality of slots in a side thereof; a plurality of generally parallel tubes extending slots; and a baffle in said header tube dividing the same into discrete sections and having a collar disposed about an end of one of said parallel tubes.
Claim 2
Dependent Claim
59 words
A heat exchanger including: opposed headers, at least one of which is a header tube having a plurality of slots in a side thereof; a plurality of generally parallel tubes extending slots; and a baffle in said header tube dividing the same into discrete sections and having a collar disposed about an end of one of said parallel tubes.
Claim 3
Dependent Claim
20 words
The heat exchanger of claim 1 wherein said collar is additionally located in the slot receiving said one parallel tube.
Claim 4
Dependent Claim
57 words
The heat exchanger of claim 1 wherein said baffle is a tube piece having a first section with an internal configuration of substantially the same size and shape as the external configuration as said end of said one parallel tube, a second opposite and collapsed section and a third, open section intermediate said first and second sections.
Claim 5
Dependent Claim
18 words
The heat exchanger of claim 3 wherein said parallel tubes and said tube pieces are flattened in cross-section.
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) | 1993-10-01 | 1994-04-02 | 1994-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-01 | 1998-04-02 | 1998-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-01 | 2002-04-02 | 2002-10-02 | $7700.00 | Window Closed / Lapsed |