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:
Aug. 05, 1986
Filed:
Apr. 02, 1984
Joseph H Hoffman, Plano, TX (US);
Resource Engineering and Manufacturing Corp., Tulsa, OK (US);
Abstract
A self propelled airless grit blast machine that travels on and along a pipeline pipe as it continuously blast cleans the outside of the pipe in advance of pipe coating and/or wrapping. The airless grit blast machine is mounted on a carriage having rollers some of which are driven for controlled driven advance along the pipe being shot grit blast cleaned. A shot grit blast cabinet with a plurality of motor driven airless blast wheels surrounds the pipe being grit blast cleaned in substantially a self contained unit also including a grit elevator system, air wash separator system, shot grit storage hopper, abrasive shot grit retaining seals, abrasive flow controls, and an operator platform with a control panel. An umbilical cord extends to the machine from auxillary equipment including a power generator and dust collector located on a tracked vehicle or on an equipment sled pulled behind a side boom equipped tractor used to walk pipe and hold the pipe in an elevated state as the pipe is being worked along the pipeline right of way.