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:
Jan. 10, 1989
Filed:
Jun. 03, 1987
Applicant:
Inventors:
E Dale Hartley, Malibu, CA (US);
F Scott Hartley, Camarillo, CA (US);
Assignee:
Product Research And Development, Anaheim, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ; F01B / ;
U.S. Cl.
CPC ...
417222 ; 91475 ; 92 122 ;
Abstract
An apparatus for moving a fluid medium comprising a positive displacement member movable to move the fluid medium and a drive mechanism adapted to be driven by a motor for driving the positive displacement member to move the fluid medium. The drive mechanism includes a driving member, a driven member, a resilient coupling and a wobble plate for driving the positive displacement member. The angle of the wobble plate is adjustable by varying the relative angular position of a driving member and a driven member.