Damper for round duct
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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.
Type: Grant
Filed: May 22, 2002
Date of Patent: Jun 24, 2003
Assignee: Snyder National Corporation (Canton, OH)
Inventor: Darryl L. Snyder (Canton, OH)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: Robert A. Delhanty
Attorney, Agent or Law Firm: Sand & Sebolt
Application Number: 29/161,143