Patents by Inventor Pasquale Columbo Bondi

Pasquale Columbo Bondi 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).

  • Spool type metering valve
    Patent number: 4114857
    Abstract: In a flow metering valve of the type in which flow through the outlet ports is regulated as a function of spool displacement and the measured pressure difference across the outlet port, valve accuracy is greatly improved by providing a ducted chamber through the valve casing to communicate with the valve interior such that upstream pressure at the outlet is measured internal to the valve. This arrangement prevents the hydraulic losses associated with the internals of the valve from generating erroneous pressure measurements.
    Type: Grant
    Filed: October 28, 1976
    Date of Patent: September 19, 1978
    Assignee: General Electric Company
    Inventor: Pasquale Columbo Bondi