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. 14, 1997
Filed:
Jul. 25, 1995
Applicant:
Inventor:
William H Lynn, Kohler, WI (US);
Assignee:
Thomas Industries Inc., Sheboygan, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417539 ; 417269 ;
Abstract
A fluid pumping apparatus is disclosed in which wobble pistons are rigidly connected to arms of a swashplate that is rotatably mounted on bearings which are mounted on a drive shaft. The axis of the bearings is at an acute angle to the axis of the shaft. The wobble pistons move within cylinders whose bores are parallel to the axis of the shaft. Two or more pistons and cylinders are arranged symmetrically about the shaft axis, and cylinder-piston combinations are mounted at opposite ends of a through shaft.