Duct offset elbow

Description

FIG. 1 is a top perspective view of a duct offset elbow showing our new design;

FIG. 2 is a side elevational view thereof, the opposite side being a mirror image of the side shown;

FIG. 3 is an end elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is an elevational view taken from the end opposite that shown in FIG. 3; and,

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D33258 September 1900 Kelly
D335174 April 27, 1993 Anderson et al.
925762 June 1909 Eager
2086007 July 1937 Tompkins
2131804 October 1938 Holub
2348455 May 1944 Daudelin
2392220 January 1946 Bruhn et al.
2823703 February 1958 Nusser, Jr.
3185506 May 1965 Szlashta
5121948 June 16, 1992 Anderson et al.
5145217 September 8, 1992 Anderson et al.
Patent History
Patent number: D342130
Type: Grant
Filed: Jan 31, 1992
Date of Patent: Dec 7, 1993
Assignee: Builder's Best, Inc. (Jacksonville, TX)
Inventors: Charles B. Anderson (Jacksonville, TX), Charles R. Kenrick (Spring Lake, MI)
Primary Examiner: James R. Largen
Law Firm: Price, Heneveld, Cooper, DeWitt & Litton
Application Number: 7/829,721