Patent US5209289A successfully refreshed from Google Patents.
US5209289A
Expired / Lapsed
US
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Lanced ruffled turbulizer
Assignee: Robinson Fin Machines Inc
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Filing: 1991-12-02
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Granted: 1993-05-11
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Expires: 2011-12-02
Abstract
Abstract A heat exchanger combines a lanced fin surface with a ruffled fin surface to create a lanced ruffled turbulizer. The lanced ruffled turbulizer combines the turbulence generated by lancing the heat transfer or turbulizer surface to the deflection forces on the fluid stream generated by a ruffled turbulizer to improve the thermal performance of the heat exchanger.
Inventors
- 👤 Frederick W. Haushalter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:01
CPC Classifications
F; F28; F28F; F28F3/00; F28F3/02; F28F3/025; F28F13/00; F28F13/06; F28F13/12
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
123 words
A turbulizer comprising: a plurality of connecting interposing lines of fin forming a corrugated pattern and generated from a flat sheet of metal, said plurality of connecting interposing lines of fin defining a repeating corrugated pattern including, a first section approximately parallel to a horizontal and situated in a horizontal plane, a section approximately parallel to said horizontal and lying in said horizontal plane, a third section sloping downward at a first angle from a first top corner of said second section toward a first bottom corner of a successive occurrence of said first section, and a fourth section sloping upward at a second angle from a second bottom corner of said first section toward a second top corner of said second section.
Claim 2
Dependent Claim
123 words
A turbulizer comprising: a plurality of connecting interposing lines of fin forming a corrugated pattern and generated from a flat sheet of metal, said plurality of connecting interposing lines of fin defining a repeating corrugated pattern including, a first section approximately parallel to a horizontal and situated in a horizontal plane, a section approximately parallel to said horizontal and lying in said horizontal plane, a third section sloping downward at a first angle from a first top corner of said second section toward a first bottom corner of a successive occurrence of said first section, and a fourth section sloping upward at a second angle from a second bottom corner of said first section toward a second top corner of said second section.
Claim 3
Dependent Claim
18 words
A turbulizer as claimed in claim 1 wherein said first angle and said second angle are substantially equal.
Claim 4
Dependent Claim
18 words
A turbulizer as claimed in claim 1 wherein said repeating corrugated pattern defines a lanced ruffled fin surface.
Claim 5
Dependent Claim
20 words
A turbulizer as claimed in claim 1 wherein said third and fourth sections are partially offset from said first section.
Claim 6
Dependent Claim
20 words
A turbulizer as claimed in claim 1 wherein said third and forth sections are partially offset from said second section.
Claim 7
Dependent Claim
35 words
A turbulizer comprising: a plurality of connecting interposing lines of fin having a surface, and means for simultaneously lancing and ruffling said plurality of connecting interposing lines of fin to define a repeating corrugated pattern.
Claim 8
Dependent Claim
35 words
A turbulizer comprising: a plurality of connecting interposing lines of fin having a surface, and means for simultaneously lancing and ruffling said plurality of connecting interposing lines of fin to define a repeating corrugated pattern.
Claim 9
Dependent Claim
20 words
A turbulizer as claimed in claim 6 wherein said means for simultaneously lancing and ruffling said fin surface comprises tooling.
Claim 10
Dependent Claim
18 words
A turbulizer as claimed in claim 6 wherein said repeating corrugated pattern comprises a lanced ruffled fin surface.
Claim 11
Independent Claim
127 words
A method for creating a turbulizer comprising the steps of: generating a continuous length of fin from a flat sheet of metal, said fin having a surface and further having a plurality of connecting interposing lines of fin; and defining a repeating corrugated pattern on said surface including, a first section approximately parallel to a horizontal and situated in a horizontal plane, a second section approximately parallel to said horizontal and lying in said horizontal plane, a third section sloping downward at a first angle from a top corner of said second section toward a bottom corner of said first section, and a fourth section sloping upward at a second angle from said bottom corner of said first section toward a top corner of said second section.
Claim 12
Independent Claim
127 words
A method for creating a turbulizer comprising the steps of: generating a continuous length of fin from a flat sheet of metal, said fin having a surface and further having a plurality of connecting interposing lines of fin; and defining a repeating corrugated pattern on said surface including, a first section approximately parallel to a horizontal and situated in a horizontal plane, a second section approximately parallel to said horizontal and lying in said horizontal plane, a third section sloping downward at a first angle from a top corner of said second section toward a bottom corner of said first section, and a fourth section sloping upward at a second angle from said bottom corner of said first section toward a top corner of said second section.
Claim 13
Dependent Claim
18 words
A method as claimed in claim 9 wherein said first angle and said second angle are substantially equal.
Claim 14
Dependent Claim
18 words
A method as claimed in claim 9 wherein said repeating corrugated pattern defines a lanced ruffled fin surface.
Claim 15
Dependent Claim
20 words
A method as claimed in claim 9 wherein said third and fourth sections are partially offset from said first section.
Claim 16
Dependent Claim
20 words
A method as claimed in claim 9 wherein said third and fourth sections are partially offset from said second section.
Claim 17
Independent Claim
130 words
A method for creating a turbulizer comprising the steps of: generating a plurality of connecting interposing lines of fin having a surface, a nd simultaneously lancing and ruffling said plurality of connecting interposing lines of fin to define a repeating corrugated pattern by, forming a first section approximately parallel to a horizontal and situated in a horizontal plane; forming a second section approximately parallel to said horizontal and lying in said horizontal plane; forming a third section sloping downward at a first angle from a first top corner of said second section toward a first bottom corner of said first section; and forming a fourth section sloping upward at a second angle from a second bottom corner of said first section toward a second top corner of said second section.
Claim 18
Independent Claim
130 words
A method for creating a turbulizer comprising the steps of: generating a plurality of connecting interposing lines of fin having a surface, a nd simultaneously lancing and ruffling said plurality of connecting interposing lines of fin to define a repeating corrugated pattern by, forming a first section approximately parallel to a horizontal and situated in a horizontal plane; forming a second section approximately parallel to said horizontal and lying in said horizontal plane; forming a third section sloping downward at a first angle from a first top corner of said second section toward a first bottom corner of said first section; and forming a fourth section sloping upward at a second angle from a second bottom corner of said first section toward a second top corner of said second section.
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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) | 1996-05-10 | 1996-11-09 | 1997-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-10 | 2000-11-09 | 2001-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-10 | 2004-11-09 | 2005-05-11 | $7700.00 | Window Closed / Lapsed |