Damper for round duct

Description

FIG. 1 is a perspective view of a first embodiment of the damper for round duct showing my new design.

FIG. 2 is a top plan view of the damper for round duct of FIG. 1.

FIG. 3 is an end view of FIG. 2.

FIG. 4 is a perspective view of a second embodiment for a damper for round duct showing my new design.

FIG. 5 is a top plan view of the damper for round duct of FIG. 4.

FIG. 6 is a front elevation view of FIG. 5.

FIG. 7 is a right side view of FIG. 5; the left side being a mirror image thereof.

FIG. 8 is a rear view of FIG. 5.

FIG. 9 is a bottom plan view of FIG. 5.

FIG. 10 is a perspective view of a third embodiment for a damper for round duct showing my new design.

FIG. 11 is a top plan view of the damper for round duct of FIG. 10.

FIG. 12 is a front elevation view of FIG. 11.

FIG. 13 is a right side view of FIG. 11; the left side being a mirror image thereof.

FIG. 14 is a rear view of FIG. 11.

FIG. 15 is a bottom plan view of FIG. 11.

FIG. 16 is a perspective view of a fourth embodiment for a damper for round duct showing my new design.

FIG. 17 is a top plan view of the damper for round duct of FIG. 16.

FIG. 18 is a front elevation view of FIG. 17.

FIG. 19 is a right side view of FIG. 17; the left side being a mirror image thereof.

FIG. 20 is a rear view of FIG. 17.

FIG. 21 is a bottom plan view of FIG. 17.

FIG. 22 is a perspective view of a fifth embodiment for a damper for round duct showing my new design.

FIG. 23 is a top plan view of the damper for round duct of FIG. 22.

FIG. 24 is a front elevation view of FIG. 23.

FIG. 25 is a right side view of FIG. 23; the left side being a mirror image thereof.

FIG. 26 is a rear view of FIG. 23; and,

FIG. 27 is a bottom plan view of FIG. 23.

The dashed lines form no part of the claimed invention.

Claims

The ornamental design for a damper for round duct, as shown and described.

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Inventors:	Snyder; Darryl L. (Canton, OH)
Assignee:	Snyder National Corporation (Canton, OH)
Appl. No.:	D/161,143
Filed:	May 22, 2002

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Current U.S. Class:	D23/388
Current International Class:	2304
Field of Search:	;D23/386-390,393,327,354,412,499 ;52/95,473 ;416/244R,447R ;D25/152,153,155 ;454/250,237,275-277,309,310-312,315,317

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References Cited [Referenced By]

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U.S. Patent Documents

D86776	April 1932	Klomparens
D165983	February 1952	Kennedy
3577654	May 1971	Marley
4335647	June 1982	Timmons
D317819	June 1991	Sello
D372775	August 1996	Schuler
D437405	February 2001	Schrank

Primary Examiner: Zarfas; Louis S.
Assistant Examiner: Delhanty; Robert A.
Attorney, Agent or Firm: Sand & Sebolt