Rock anchor

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Description

FIG. 1 is a perspective view of a rock anchor showing my new design;

FIG. 2 is a front side view thereof, the rear being a mirror image;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
D245224 August 2, 1977 Bowers
D270365 August 30, 1983 Hawk
2863177 December 1958 Nelson et al.
3937436 February 10, 1976 Stewart
4473332 September 25, 1984 Sturdy
Foreign Patent Documents
0286554 January 1965 AUX
Patent History
Patent number: D287460
Type: Grant
Filed: Sep 28, 1984
Date of Patent: Dec 30, 1986
Assignee: Tie Down Engineering, Inc. (Atlanta, GA)
Inventor: Charles J. MacKarvich (Atlanta, GA)
Primary Examiner: B. J. Bullock
Attorney: James R. Haller
Application Number: 6/655,244
Classifications
Current U.S. Class: D/8388; D/8356; D21/255