The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 1993
Filed:
Nov. 29, 1991
Milburn L Hart, Tulsa, OK (US);
Commercial Resins Company, Tulsa, OK (US);
Abstract
The invention is a spray coating machine for applying a protective coating to a pipe or pipeline as the machine travels down the pipe. The invention has a two piece yoke which separates at the top and bottom to enable it to be fitted around the pipe. Each of the two pieces of the yoke serve as a track on which a spray gun moves, one spray gun flexibly mounted on each of the two pieces of the yoke. The two spray guns are aimed at the pipe and are moved up and down opposite each other by means of a gear belt driven mechanism. The spray guns are controlled so that they spray during only one direction of travel and are turned off as they travel in the opposite direction.