Air duct

- Seiho International, Inc.
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Description

FIG. 1 is a perspective view taken from the front, top and right side of the air duct showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front elevational view thereof, the rear elevational view being a mirror image to the front elevational view;

FIG. 5 is a right side elevational view thereof, the left side elevational view being a mirror image to the right side elevational view; and,

FIG. 6 is a top plan view thereof with the small diameter cylinder inside the air duct turned 90 degrees;

FIG. 7 is a top plan view thereof with the large diameter cylinder inside the air duct turned 90 degrees; and,

FIG. 8 is a vertical cross sectional front view of the air duct taken along line 8--8 in FIG. 1.

Referenced Cited
U.S. Patent Documents
2616355 November 1952 McCabe et al.
4241789 December 30, 1980 Froseh
5211605 May 18, 1993 Shiga et al.
Patent History
Patent number: D393709
Type: Grant
Filed: May 10, 1996
Date of Patent: Apr 21, 1998
Assignee: Seiho International, Inc. (Pasadena, CA)
Inventor: Keisuke Nishizawa (San Marino, CA)
Primary Examiner: Lisa Lichtenstein
Law Firm: Koda and Androlia
Application Number: 0/54,235
Classifications
Current U.S. Class: Circular (D23/390); Circular Grille (D23/382); Arched Or Curved Top (D23/391)
International Classification: 2304;