Duct canister for carrying and storing sections of a flexible duct used with portable ventilators

Description

FIG. 1 is a front and right side perspective view of a duct canister for carrying and storing sections of a flexible duct used with portable ventilators, showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The fragmentary criss-cross pattern shown on the front strip in FIGS. 1, 2, and 3, is shown partially for ease of illustration, and is understood to extend throughout the strip.

Referenced Cited
U.S. Patent Documents
D135677 May 1943 Hastert
D247196 February 7, 1978 Mikosz
D283758 May 13, 1986 Stewart et al.
3263806 August 1966 Ring
4379359 April 12, 1983 Young
Patent History
Patent number: D329895
Type: Grant
Filed: Jun 18, 1990
Date of Patent: Sep 29, 1992
Assignee: Coppus Engineering Corporation (Millbury, MA)
Inventor: Mark S. Chumsae (Shrewsbury, MA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Law Firm: Samuels, Gauthier & Stevens
Application Number: 7/539,676
Classifications
Current U.S. Class: Vent, Ductwork, Or Element Thereof (D23/393); D 3/301