Patents by Inventor Mark E. Hollan

Mark E. Hollan 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 agent injection system for fire fighting equipment
    Patent number: 4234044
    Abstract: A fire fighting pump apparatus adapted for remote control wherein a chemi additive is injected into the system and utilized in conjunction with water. The device is provided with an automatic self-cleaning circuit wherein water can circulate through the chemical agent injection pump, and the system is also so designed that the chemical agent injection pump will not be inadvertently operated dry.
    Type: Grant
    Filed: September 27, 1978
    Date of Patent: November 18, 1980
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Mark E. Hollan, John J. Bayles