Insulation injection hole plug

Description

FIG. 1 is a reduced bottom perspective view of the insulation injection hole plug showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a side elevational view taken from the right side as seen in FIG. 2;

FIG. 4 is a side elevational view taken from the right side as viewed in FIG. 3;

FIG. 5 is a top plan view.

The left side, as viewed in FIG. 2, is identical to the right side as shown in FIG. 3, and the left side, as shown in FIG. 3, is identical to the right side, as shown in FIG. 4.

Referenced Cited
U.S. Patent Documents
4137680 February 6, 1979 Doonan
Patent History
Patent number: D261357
Type: Grant
Filed: Jul 28, 1978
Date of Patent: Oct 20, 1981
Inventor: R. Dean Doonan (Montezuma, IA)
Primary Examiner: B. J. Bullock
Law Firm: Zarley, McKee, Thomte, Voorhees & Sease
Application Number: 5/929,210
Classifications
Current U.S. Class: D/8499; D/9452
International Classification: D0899; D0907;