Gripper for installing and removing a sign holder

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Description

FIG. 1 is a perspective view of the gripper for installing and removing a sign holder of my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof; the opposite side being a mirror image thereof;

FIG. 4 is a side view thereof, the opposite side being a mirror image thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view of a modification of the gripper for installing and removing a sign holder of FIG. 1;

FIG. 8 is a front elevational view of FIG. 7;

FIG. 9 is a rear elevational view of FIG. 7;

FIG. 10 is a side elevational view of FIG. 7; the opposite side being a mirror image thereof;

FIG. 11 is a top plan view of FIG. 7; and,

FIG. 12 is a bottom plan view of FIG. 7.

Referenced Cited
U.S. Patent Documents
D234678 April 1975 Jellinek
D253088 October 9, 1979 Levin
D297103 August 9, 1988 Parish, Sr.
D335249 May 4, 1993 Hopkins
D340392 October 19, 1993 Axelsson
3953065 April 27, 1976 Shannon, Jr.
3958318 May 25, 1976 Crosa
3972104 August 3, 1976 Partin et al.
4564165 January 14, 1986 Grant et al.
5188332 February 23, 1993 Callas
Other references
  • Sign-EEZ Publication--Callas Enterprises, Inc. (Date Unknown).
Patent History
Patent number: D399397
Type: Grant
Filed: Jan 27, 1997
Date of Patent: Oct 13, 1998
Inventor: Michael T. Callas (Tonka Bay, MN)
Primary Examiner: Martie Thompson
Law Firm: Burd, Bartz & Gutenkauf
Application Number: 0/65,384
Classifications
Current U.S. Class: D 8/51
International Classification: 0805;