Talk:Chadwell O'Connor

Fluid Head Invention
Australian engineers Bob and Eric Miller developed a tripod fluid head for smooth panning and tilting of "cinematograph machines" and instruments in the 1940s and filed a patent in 1946.

Australian patent 130,757

Application date: 5th December 1946

Published: 21st August 1947

Accepted: 4th January 1949

US2459040 A

Publication date: Jan 11, 1949

Filing date: Nov 12, 1947

Priority date: Dec 5, 1946

"'The tripod head of this invention consists of two members each rotatable in a cylinder... Both cylinders are charged with a grease or liquid (referred to hereinafter as “liquid') which surrounds the members and permits a free and regular movement of the members without chatter.'"

In 1952, six years after Miller's patent priority date, O'Connor demonstrated his own fluid head to Walt Disney, and filed his patent eight years after Miller's.

US2905421 A

Publication date: Sep 22, 1959

Filing date: Mar 29, 1954

Priority date: Mar 29, 1954

Is there any reliable information that O'Connor invented his fluid head before 1946? — Preceding unsigned comment added by Crētus (talk • contribs) 10:55, 25 June 2015 (UTC)