Apparatus for sealing lap joints of fusible roofing sheets
OwnerJohn N. Langinventor
Life of this patent
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Abstract
A burner that has flat upper and lower walls connected by side walls and a front end wall is provided with a fuel inlet for connection to a fuel source and with an open rear end. A device is connected to one side of the burner for inserting it between the overlapping layers of a lap joint of fusible roofing sheets for sliding it forward along the joint while flame issues from the rear end of the burner to fuse the overlapping layers together. Preferably, a roller follows the burner to press the hot layers of the joint together. A second burner may be provided which is opposite hand to the first burner and which is held in an elevated position as long as the first burner is in operating position.
Claims12
Apparatus for sealing lap joints of fusible roofing sheets, said apparatus comprising a burner having substantially flat upper and lower walls connected by side walls and a front end wall, the burner having a fuel inlet and an open rear end, a conduit for connecting said inlet to a fuel source, and means connected to one side of the burner for inserting it between the overlapping layers of a lap joint and for sliding it forward along the joint while flame heats said upper and lower walls and issues from the rear end of the burner to fuse said overlapping layers together, said fuel inlet being located in the front end of the bruner side wall at said one side of the burner.
Dependencies are inferred from the claim text.