Combined erectable hydraulic drilling rig and transport trailer

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Description

FIG. 1 is a left side perspective view of a combined erectable hydraulic drilling rig and transport trailer showing my new design;

FIG. 2 is a right side perspective view thereof;

FIG. 3 is a left side elevational view with the drilling rig in transport position and the deck surrounding the top portion of the rig removed for ease of illustration, the opposite side being substantially identical.

The undisclosed bottom of the combined erectable hydraulic drilling rig and transport trailer is plain and unornamented.

Referenced Cited
U.S. Patent Documents
D244190 May 3, 1977 Swartz et al.
D253535 November 27, 1979 Schmidt et al.
3887017 June 1975 Frederick
4312413 January 26, 1982 Loftis
4371041 February 1, 1983 Becker et al.
Patent History
Patent number: D282368
Type: Grant
Filed: Jun 6, 1983
Date of Patent: Jan 28, 1986
Inventor: Albert W. Smith (Tyler, TX)
Primary Examiner: B. J. Bullock
Assistant Examiner: Suzanne N. Gitlin
Law Firm: Shlesinger, Arkwright, Garvey & Fado
Application Number: 6/501,135