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:
Jul. 31, 1990
Filed:
Jan. 18, 1990
James S Renner, Milford, OH (US);
MK-Ferguson Company, Cleveland, OH (US);
Abstract
The invention provides a portable welding or cutting shield to assist in preventing welding or burning by-products from contaminating or damaging the inside surfaces of a pipe. The portable welding shield comprises a shield assembly for capturing the by-products released within and traveling along the length of the pipe, a leg assembly for supporting the shield assembly within the pipe and a splatter target that extends upwardly from the shield assembly. The leg assembly includes fixed first and second legs, and an adjustable third leg. The adjustable leg includes a screw actuator that allows the length of the leg to be radially adjusted so as to allow the leg assembly to be brought in and out of engagement with the inside diameter of the pipe. The shield assembly includes multiple flexible pieces of flame resistant fabric sandwiched between a top and a bottom pair of semi-circular plates. The pieces of fabric have a diameter greater than that of the inner diameter of the pipe such that the fabric contacts substantially the entire inside diameter of the pipe at a particular location along the length of the pipe. The semi-circular plates are capable of folding inwardly upon themselves so as to facilitate the insertion of the shield assembly within the pipe. Located above the shield assembly is a splatter target. The splatter target serves to capture by-products traveling across the inside diameter of the pipe.