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:
Dec. 29, 1998
Filed:
Dec. 13, 1996
John G Searle, Cannock, GB;
Rolls-Royce PLC, London, GB;
Abstract
Variable amplitude, linear reciprocation of an output ram is produced by converting rotary motion into linear motion using a swash plate connected by a bending element to drive a crank. The rotary prime mover and swash plate are mounted on a pivotable frame so as the axial throw of the swash plate is determined by the angular offset of the rotational axes of the swash plate and crank. When the axes are coincident the throw, and therefore the ram stroke, is zero but progressive angular displacement produces a progressively increased stroke. Thus, the frequency of reciprocation is determined by the angular speed of the prime mover, and the stroke is controllably variable between maximum and zero.