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. 07, 1998
Filed:
Apr. 22, 1996
Paul L Morris, Overland Park, KS (US);
Other;
Abstract
An improved torch assembly (10) designed for use in the formation of roof lap joints even in cold weather is provided which includes an elongated handle (12) having a low profile torch head assembly (17) secured thereto. The assembly (17) has a drag shoe (14) adapted to receive a torch head (16) and direct combustion products through a rearward outlet opening (54). Minimal torch head assembly height is provided so as to avoid cracking of stiff lap weld material during cold weather use, and is achieved through use of an elongated, rectangular in cross-section torch head (16) which fits between upper and lower walls (24, 32) forming a part of shoe (14); the head (16) has a number of large area air inlets (74) owing to its rectangular configuration, allowing generation of sufficient heat to give lap welds of high integrity. In an alternative configuration, a carriage assembly (76) is coupled with the torch head assembly (17) for supporting a roll (77) of roofing material above the torch head (16).