External ring clamp

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Description

FIG. 1 is a perspective view of an external ring clamp showing my new design.

FIG. 2 is a side elevational view of FIG. 1, the opposite side being a mirror image thereof.

FIG. 3 is a bottom plan view of FIG. 1; and

FIG. 4 is a right end elevational view of FIG. 1.

Referenced Cited
U.S. Patent Documents
3996650 December 14, 1976 Tonn
Other references
  • Fullman Manufacturing Co. Bulletin No. 54A, A.I.A. File 31-C-71, Parallel Type Double Safety Grip Clamp.
Patent History
Patent number: D251109
Type: Grant
Filed: Aug 26, 1976
Date of Patent: Feb 20, 1979
Inventor: Walter D. Kirkland (Walnut Creek, CA)
Primary Examiner: James M. Gandy
Application Number: 5/718,191
Classifications
Current U.S. Class: D/8395; D/8396
International Classification: D0808;