Combined cutting and piercing tool for opening a caulking tube

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Description

FIG. 1 is a plan view of the combined cutting and piercing tool for opening a caulking tube showing my new design;

FIG. 2 is a front and, alternatively a back view of the combined cutting and piercing tool for opening a caulking tube;

FIG. 3 is a right side and alternatively, a left side view of the combined cutting and piercing tool for opening a caulking tube;

FIG. 4 is a bottom end view of the combined cutting and piercing tool for opening a caulking tube; and

FIG. 5 is a sectional view of the combined cutting and piercing tool for opening a caulking tube taken along lines 5--5 in FIG. 2.

Referenced Cited
U.S. Patent Documents
D31812 November 1899 Barnes
D38192 August 1906 Sommer
D46869 January 1915 Newhall
D230563 March 1974 Stahel
D298409 November 8, 1988 Sugiyama
2701820 February 1955 Marth
Patent History
Patent number: D323451
Type: Grant
Filed: Sep 19, 1988
Date of Patent: Jan 28, 1992
Inventor: George E. Preston (Mt. Clemens, MI)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Monica A. Hannon
Application Number: 7/246,282
Classifications
Current U.S. Class: D 8/98; D/8105