Patent US4296779A successfully refreshed from Google Patents.
US4296779A
Expired / Lapsed
US
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Turbulator with ganged strips
Assignee: Individual
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Filing: 1979-10-09
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Granted: 1981-10-27
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Expires: 1999-10-09
Abstract
Abstract An improved turbulator unit for insertion in a heat exchanger tube with the turbulator having a plurality of elongated strips of metal each formed of a series of alternating deflection panels successively joined together by substantially triangular bridging portions with the strips being ganged together and anchored substantially on the axis of the tube by alternate ones of the bridging portions and the other bridging sections being disposed adjacent the inner wall of the tube.
Inventors
- 👤 Ronald H. Smick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:38
CPC Classifications
F; F28; F28G; F28G3/00; F28F; F28F13/00; F28F13/06; F28F13/12; B; B01; B01F; B01F25/00; B01F25/40; B01F25/42; B01F25/43; B01F25/431; B01F25/4315; B01F25/43151
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
110 words
An improved turbulator unit for insertion in a heat exchanger tube having substantially straight longitudinal internal walls, comprising, in combination, a plurality of elongated turbulator strips of metal each formed of a series of alternately angling and oppositely tilting deflection panels successively joined together by substantially triangular bridging portions, said strips being ganged together with every other one of said triangular bridging portions of opposing ones of said strips being disposed and anchored substantially on the axis of the heat exchanger tube and the other ones of said triangular bridging portions of each turbulator strip disposed with the apexes thereof directed toward and adjacent the inner wall of said tube.
Claim 2
Dependent Claim
110 words
An improved turbulator unit for insertion in a heat exchanger tube having substantially straight longitudinal internal walls, comprising, in combination, a plurality of elongated turbulator strips of metal each formed of a series of alternately angling and oppositely tilting deflection panels successively joined together by substantially triangular bridging portions, said strips being ganged together with every other one of said triangular bridging portions of opposing ones of said strips being disposed and anchored substantially on the axis of the heat exchanger tube and the other ones of said triangular bridging portions of each turbulator strip disposed with the apexes thereof directed toward and adjacent the inner wall of said tube.
Claim 3
Dependent Claim
49 words
An improved turbulator as defined in claim 1 including four of said elongated strips attached by said every other one of said bridging sections to a web extending longitudinally along the axis of said tube such that said turbulator has a generally X-shaped configuration when viewed from the end.
Claim 4
Dependent Claim
19 words
An improved turbulator as defined in claim 2 wherein said elongated strips are disposed in upper and lower pairs.
Claim 5
Dependent Claim
29 words
An improved turbulator as defined in claim 3 wherein said upper pair of strips are attached to said web in longitudinally staggered relation to said lower pair of strips.
Claim 6
Dependent Claim
19 words
An improved turbulator as defined in claim 2 wherein the ends of said strips are attached to said web.
Claim 7
Dependent Claim
51 words
An improved turbulator as defined in claim 3 wherein the ends of one pair of said strips are attached to said web and the ends of the other pair of said strips are secured to bracket means supported by the next adjacent bridging portion of the strips of said one pair.
Claim 8
Dependent Claim
39 words
An improved turbulator as defined in claim 6 wherein said bracket means is in the form of an inverted generally U-shaped bracket, the legs of which are supported by the bridging portions of the strips of said one pair.
Claim 9
Dependent Claim
22 words
An improved turbulator as defined in claim 1 including means for attaching said turbulator in end-to-end relation to another of said turbulators.
Claim 10
Dependent Claim
38 words
An improved turbulator as defined in claim 1 including two of said elongated strips attached to each other at alternate ones of said triangular bridging portions with said attached bridging portions being inverted with respect to each other.
Claim 11
Dependent Claim
23 words
An improved turbulator as defined in claim 9 wherein said turbulator appears generally as a tall, narrow parallelogram when viewed from the end.
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) | 1984-10-26 | 1985-04-27 | 1985-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-26 | 1989-04-27 | 1989-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-26 | 1993-04-27 | 1993-10-27 | $7700.00 | Window Closed / Lapsed |