Middleville Tool and Die Company

R. T. London Company

Douglas Michael Johnson

Robert Leroy Middleton, Jr

Robert Edward Leedy

Gregory J Winer

John A Nobel

The invention includes a method, and a component made according to the method having at least one thread pattern formed thereon from a stamping method. The invention includes a tubular member comprising a body having a wall formed from a wrapped sheet of stock to define an interior wall and an exterior wall, a seam in the wall defining a first and second end of the wrapped sheet of stock, and a thread pattern stamped on the exterior wall. The method comprises the steps of forming a blank from sheet of stock having a first surface. A thread pattern is formed onto the first surface while in a substantially sheet-like form. A bending operation then forms the sheet stock into a tubular member such that the thread pattern, located on the tube's external surface, is substantially aligned about its circumference.

Method for making threaded tube

A unique tubular work piece is disclosed along with a novel method and apparatus for manufacturing tubular work pieces from sheet metal stock lighter and stronger structures with less waste and less cost than prior methods.

Stamped tubular member and method and apparatus for making same

A pin channel is formed from a unitary piece of sheet material into a U-shape with integral support posts adapted to support a hanger. The support posts are formed from bosses shaped in the sheet material with no assembly of parts or pieces.

Growing community of inventors

Dorr, MI, United States of America

Douglas Michael Johnson