Patents by Inventor Andy Kirby

Andy Kirby has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • ADJUSTABLE PILOT-ACTUATED VALVE
    Publication number: 20130105014
    Abstract: An adjustable pilot—actuated valve (230) is provided. The adjustable pilot—actuated valve (230) comprises a housing (331) forming a valve chamber (332), a first piston chamber (338), and a second piston chamber (340). The adjustable pilot—actuated valve (230) further includes a valve spool (333) movable within the valve chamber (332). A first piston (334) is movable within the first piston chamber (338) and includes a first side (334a) and a second side (334b) with the second side (334b) coupled to the valve spool (333). A second piston (335) is movable within the second piston chamber (340) and includes a first side (335a) and a second side (335b) with the second side (335b) coupled to the valve spool (333).
    Type: Application
    Filed: July 11, 2011
    Publication date: May 2, 2013
    Applicant: Norgren Limited
    Inventors: Jonathan Brooks, Andy Kirby