Patents by Inventor Herbert H. Speas

Herbert H. Speas 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).

  • Publication number: 20150321836
    Abstract: A receiver is disclosed. The receiver includes a housing. The housing defines a fluid inlet and a fluid outlet. The fluid inlet and the fluid outlet are positioned at opposing ends of the housing. The receiver also includes a piston. The piston includes a head portion positioned at the fluid inlet. The piston also includes a rod portion. The rod portion extends from the head portion towards the fluid outlet. The receiver further includes a plate positioned within the housing and surrounding the rod portion. The plate includes through holes provided therein. The receiver includes a spring mounted on the rod portion. The spring is configured to bias a movement of the piston with respect to the housing. Further, the plate and the head portion of the piston define an adjustable volume therebetween. The volume is adjusted based on the movement of the piston with respect to the housing.
    Type: Application
    Filed: May 7, 2014
    Publication date: November 12, 2015
    Applicant: Caterpillar Inc.
    Inventor: Herbert H. Speas
  • Publication number: 20150068618
    Abstract: A valve is provided. A body of the valve is configured to receive a supply of fluid. The body includes an inlet. A chamber is defined within the body. A seat member is disposed within the chamber. The seat member includes apertures defining a fluid flow path from the inlet into the chamber. A plunger is disposed through the body and in fluid communication with the chamber. The plunger includes a tubular wall defining a conduit therethrough. A float is attached to a distal end of the plunger. The plunger and the float are configured to move relative to the body and the seat member between an open position and a closed position. The apertures in the seat member are positioned radially outward of the tubular wall of the plunger.
    Type: Application
    Filed: September 9, 2013
    Publication date: March 12, 2015
    Applicant: Caterpillar Inc.
    Inventor: Herbert H. Speas