Patents by Inventor Adelmo Marrucci

Adelmo Marrucci 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).

  • Remotely-actuated dual-pressure relief valve
    Patent number: 9410633
    Abstract: A relief valve assembly includes an actuating assembly, a relief valve, and a check valve. The actuating assembly includes a housing forming a cylinder, and a pilot piston within the cylinder. The relief valve includes a housing forming opposed first and second blind bores, a relief valve piston within the first bore and carrying a relief valve member, and a first spring acting between the pilot piston and the relief valve piston to bias the relief valve member toward a valve seat to close the valve seat. A pilot pressure is selectively applied to move the pilot piston toward the first spring to selectively increase the relief pressure of the relief valve from a first relief pressure to a second relief pressure. The check valve includes a check valve member within the second blind bore, a second spring biasing the check valve member away the second blind bore.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: August 9, 2016
    Assignee: Industrias Marrucci Ltda.
    Inventor: Adelmo Marrucci
  • Remotely-Actuated Dual-Pressure Relief Valve
    Publication number: 20160053906
    Abstract: A relief valve assembly includes an actuating assembly, a relief valve, and a check valve. The actuating assembly includes a housing forming a cylinder, and a pilot piston within the cylinder. The relief valve includes a housing forming opposed first and second blind bores, a relief valve piston within the first bore and carrying a relief valve member, and a first spring acting between the pilot piston and the relief valve piston to bias the relief valve member toward a valve seat to close the valve seat. A pilot pressure is selectively applied to move the pilot piston toward the first spring to selectively increase the relief pressure of the relief valve from a first relief pressure to a second relief pressure. The check valve includes a check valve member within the second blind bore, a second spring biasing the check valve member away the second blind bore.
    Type: Application
    Filed: August 25, 2014
    Publication date: February 25, 2016
    Applicant: Industrias Marrucci Ltda
    Inventor: Adelmo Marrucci