Ductwork clamp

Description

FIG. 1 is a perspective view of the ductwork clamp embodying the design of the present invention;

FIG. 2 is a front end elevational view thereof;

FIG. 3 is a rear end elevational view thereof;

FIG. 4 is a side elevational view thereof, the side opposite being a mirror image of the side shown in FIG. 4;

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

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D286369 October 28, 1986 Hahn
D321633 November 19, 1991 Rigney
2970798 February 1961 Fritchle et al.
3861663 January 1975 Strickland
4600174 July 15, 1986 Gosse
4838584 June 13, 1989 Dierksmeier
4889299 December 26, 1989 Sarton
Patent History
Patent number: D342006
Type: Grant
Filed: Apr 24, 1992
Date of Patent: Dec 7, 1993
Inventors: Steve Schrock (Sycamore, IL), Terry W. Fleetwood (Sycamore, IL)
Primary Examiner: Alan P. Douglas
Assistant Examiner: J. H. Musgrove
Attorney: Terry M. Gernstein
Application Number: 7/873,059
Classifications
Current U.S. Class: D 8/72