Patents by Inventor W. Norman Shade

W. Norman Shade 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).

  • Valve poppets and valve seats for high-speed reciprocating compressor capacity unloaders
    Patent number: 11781664
    Abstract: An improved unloader valve assembly for a high-speed reciprocating compressor includes improved poppets and valve seat designs. The improved poppets and valve seats are useful for reducing or eliminating poppet leakage and high impact stresses on the sealing surfaces of the poppets, and are especially intended for use with high-speed reciprocating compressors operating at 1000 rpm and higher. A control chamber spacer plate for creating a control pressure chamber within the unloader valve assembly, and a valve seat cushioning plate for reducing stress on the head ends of the poppets are also described.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: October 10, 2023
    Assignee: ACI SERVICES, INC.
    Inventors: W. Norman Shade, David W. Legg
  • VALVE POPPETS AND VALVE SEATS FOR HIGH-SPEED RECIPROCATING COMPRESSOR CAPACITY UNLOADERS
    Publication number: 20210332902
    Abstract: An improved unloader valve assembly for a high-speed reciprocating compressor includes improved poppets and valve seat designs. The improved poppets and valve seats are useful for reducing or eliminating poppet leakage and high impact stresses on the sealing surfaces of the poppets, and are especially intended for use with high-speed reciprocating compressors operating at 1000 rpm and higher. A control chamber spacer plate for creating a control pressure chamber within the unloader valve assembly, and a valve seat cushioning plate for reducing stress on the head ends of the poppets are also described.
    Type: Application
    Filed: April 20, 2021
    Publication date: October 28, 2021
    Inventors: W. Norman Shade, David W. Legg