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:
Jun. 14, 2016
Filed:
Apr. 07, 2009
Alan James Caughley, Christchurch, NZ;
Alan James Caughley, Christchurch, NZ;
Callaghan Innovation, Lower Hutt, NZ;
Abstract
A drive system for driving a diaphragm pressure wave generator comprising opposed first and second diaphragms () that are each coupled at or toward opposite ends of a reciprocally moveable drive piston (). The drive system comprises an operable actuator () that generates a reciprocating motion output having a low force and long stroke. The drive system also comprises a hydraulic amplifier that is operatively coupled between the actuator and the drive piston, the hydraulic amplifier being arranged to convert the reciprocating motion output from the actuator into an amplified output having a higher force and shorter stroke, and apply the amplified output to the drive piston () to cause the drive piston and opposed diaphragms () to reciprocate and generate waves.