Patents by Inventor Edgar C. Ray

Edgar C. Ray 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).

  • Chemical feed system
    Patent number: 5419836
    Abstract: A chemical feed system for use in industrial fluid systems is disclosed. The system comprises a fluid source, containers for storing additives, pumps for proportionally dispensing the additives, and a filter to remove unwanted matter from the fluid stream. The invention is partially applicable to poultry drinking water systems.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: May 30, 1995
    Assignee: Nalco Chemical Company
    Inventors: Edgar C. Ray, Randal J. Meyer
  • Electrical outlet safety device
    Patent number: 4618740
    Abstract: Disclosed is an aesthetically pleasing, inexpensive safety device that protects children from electrical shock from electrical outlets that have, or do not have, devices connected thereto. The safety device adhesively secures an impermeable cover over an unused electrical outlet to prevent the insertion of foreign objects by a child. In outlets with an electrical appliance connected, the impermeable cover is removed and the safety device holds the electrical plug to the electrical receptacle, preventing partial removal of the plug.
    Type: Grant
    Filed: November 6, 1985
    Date of Patent: October 21, 1986
    Inventors: Edgar C. Ray, William A. Kohl