Heat exchanger fin

Description

FIG. 1 is a perspective view of our new design for a heat exchanger fin installed with an array of heat exchanger fins in a heat exchanger for a tankless water heater;

FIG. 2 is a top front perspective view of our new design for a heat exchanger fin;

FIG. 3 is a bottom back perspective view thereof;

FIG. 4 is a left elevation view thereof;

FIG. 5 is a right elevation view thereof;

FIG. 6 is a front elevation view thereof;

FIG. 7 is a back elevation view thereof;

FIG. 8 is a top plan view thereof; and,

FIG. 9 is a bottom view thereof.

The broken lines shown in the figures illustrate the environment in which the heat exchange fin is installed and form no part of the claimed design.

Claims

CLAIM The ornamental design for a heat exchanger fin, as shown and described.

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Inventors:	Mahajan; Govinda (Montgomery, AL), Bacellar; Daniel (Silver Spring, MD)
Applicant:	Name City State Country Type Rheem Manufacturing Company Atlanta GA US
Assignee:	Rheem Manufacturing Company (Atlanta, GA)
Appl. No.:	D/663,004
Filed:	September 11, 2018

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Current U.S. Class:	D13/179
Current International Class:	1303
Field of Search:	;D13/179,182 ;D26/113,138,141 ;D8/394,354

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References Cited [Referenced By]

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U.S. Patent Documents

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5582244	December 1996	Helms et al.
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9638476	May 2017	Kerler et al.
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D819578	June 2018	Su
D858466	September 2019	Vance
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2016/0273850	September 2016	Okamoto et al.
2017/0276440	September 2017	Kenworthy
2019/0285359	September 2019	Mahajan

Foreign Patent Documents

	102121798		Jul 2011		CN
	102121798		Jul 2011		CN
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	2866698		Aug 2005		FR
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	63210596		Sep 1988		JP
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Other References

Oak Fin Dies, Fin Advertisement, First cached Jan. 24, 2017. (https://www.burroak.com/documents/machines/OAK_Fin_Dies.pdf) (Year: 2017). cited by examiner . HTPM, "Fins", Cached on Aug. 20, 2018. (http://www.wx-hi-tech.com/product.asp?id=3) (Year: 2018). cited by examiner . Office Action and Search Report for Chilean Patent Appln. N.degree. 2019-00638 dated Jan. 14, 2020 (12 pages). cited by applicant . Tiwari S, et al. Heat Transfer Enhancement in Cross-flow Heat Exchangers using Oval Tubes and Multiple Delta Winglets. International Journal of Heat and Mass Transfer. 2003;(46):2841-2856. ISSN 0017-9310. cited by applicant . Perez et at; An Experimental Study of Heat Transfer Enhancement using Vortex Generators in a Finned Elliptical Tube; Ingenieria Energetica, 2016:XXXVII(3):165-175, Sep./Dec., ISSN 1815-5901. cited by applicant.

Primary Examiner: Rivas; April
Attorney, Agent or Firm: Troutman Pepper Hamilton Sanders LLP

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