Patents by Inventor Richard L. Helmick

Richard L. Helmick 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).

  • Rotary compressor with pulsation minimizing discharge
    Patent number: 5597287
    Abstract: Fluent material is discharged with a radial velocity component from outlet orts of a positive displacement compressor for flow through a continuous volute passage to a receiver. The volute passage has a flow path geometry arranged to both minimize pulsations of the fluent material delivered to the receiver and optimize operation of the compressor.
    Type: Grant
    Filed: August 16, 1995
    Date of Patent: January 28, 1997
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Richard L. Helmick