Tapered traction stud

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Description

FIG. 1 is a top plan view of a tapered traction stud, showing our new design according to the present invention;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view as viewed in FIG. 1, the rear elevational view viewing a mirror image; and,

FIG. 4 is a side elevational view taken from the right side of FIG. 1, it being understood that the left hand elevational opposite side view is a mirror image thereof.

Referenced Cited
U.S. Patent Documents
D305222 December 26, 1989 Geib
D392925 March 31, 1998 Staszak
3766956 October 1973 Ruane et al.
3934632 January 27, 1976 Kalpin et al.
Patent History
Patent number: D423428
Type: Grant
Filed: Jun 4, 1999
Date of Patent: Apr 25, 2000
Assignee: International Engineering and Manufacturing Inc. (Hope, MI)
Inventors: James Musselman (Hope, MI), Robert Musselman (Hope, MI), Mark Musselman (Hope, MI)
Primary Examiner: Robert M. Spear
Attorney: John J. Swartz
Application Number: 0/106,014
Classifications
Current U.S. Class: D12/154
International Classification: 1215;