Method of forming a mounting for a tank cover
AssigneeZip Heaters (Aust) Pty Ltd
InventorsRaymond D. Massey, Vincent Di Santo
Life of this patent
Estimating the term…
Abstract
A method of forming mounting for an inspection cover or similar in a sheet metal tank wherein threaded fasteners such as machine screws are inserted in holes burst in the sheet metal around the edges of the opening in the tank wall. The burst metal portions are then pressed into the thread of the screws to hold the screws in place as studs for the mounting of the cover. A reinforcing flange is simultaneously pressed into the sheet metal around the periphery of the opening.
Claims5
A method of forming a mounting for an inspection cover or the like in a sheet metal tank, said method comprising the steps of forming the desired opening in the sheet metal wall of said tank, bursting a plurality of holes through said sheet metal around the periphery of said opening, inserting headed, threaded fasteners into said holes so that the headed portions thereof lie on the opposite side of said sheet metal from the burst portions of said holes supporting said headed portions of said fasteners, pressing said burst portions inwardly to engage the threaded portions of said fasteners and pressing a reinforcing flange in said sheet metal around the periphery of said openings.
Dependencies are inferred from the claim text.