Coupling device for construction material

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Description

FIG. 1 is a front, top and left side perspective view of a coupling device for construction material showing my new design in full lines with the broken lines showing of environmental association matter being for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is an enlarged front, bottom and left side perspective view of the coupling device for construction material;

FIG. 3 is a front, bottom and right side perspective view of the coupling device for construction material;

FIG. 4 is an enlarged left side elevational view of the coupling device for construction material;

FIG. 5 is a front elevational view of the coupling device for construction material;

FIG. 6 is a back elevational view of the coupling device for construction material;

FIG. 7 is a top plan view of the coupling device for construction material;

FIG. 8 is a bottom plan view of the coupling device for construction material; and,

FIG. 9 is a right side elevational view of the coupling device for construction material.

Referenced Cited
U.S. Patent Documents
1402438 January 1922 Nichols
2617502 November 1952 Kessler
3966337 June 29, 1976 Crawford
5059056 October 22, 1991 Banthia et al.
5746325 May 5, 1998 Lee
Patent History
Patent number: D419055
Type: Grant
Filed: Jun 9, 1999
Date of Patent: Jan 18, 2000
Inventor: Robert J. Monson (St. Paul, MN)
Primary Examiner: Holly Baynham
Application Number: 0/106,219
Classifications
Current U.S. Class: D/8382
International Classification: 0808;