Patents by Inventor David G. EOFF

David G. EOFF 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).

  • Waterproof pump enclosure and system including same
    Patent number: 9932981
    Abstract: The present invention is directed to a pump and motor assembly assembled in a waterproof enclosure with external threaded connections for pump suction and discharge. The motor can be directly connected to a flexible coupling to a bi-rotational internal gear pump, having self-adjusting mechanical seals and cast iron housing. The pump and motor assembly can be mounted on a sliding base for easy access. Flex hoses can be used to connect pump suction and discharge to couplings attached to the pump enclosure. A discriminating leak detector can be installed at the low point of the pump enclosure to detect and annunciate the presence of oil and/or water.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: April 3, 2018
    Assignee: Preferred Utilities Manufacturing Corporation
    Inventors: Dennis W. Cosgrove, David G. Eoff, Salvatore A. Mola
  • WATERPROOF PUMP ENCLOSURE AND SYSTEM INCLUDING SAME
    Publication number: 20150247497
    Abstract: The present invention is directed to a pump and motor assembly assembled in a waterproof enclosure with external threaded connections for pump suction and discharge. The motor can be directly connected to a flexible coupling to a bi-rotational internal gear pump, having self-adjusting mechanical seals and cast iron housing. The pump and motor assembly can be mounted on a sliding base for easy access. Flex hoses can be used to connect pump suction and discharge to couplings attached to the pump enclosure. A discriminating leak detector can be installed at the low point of the pump enclosure to detect and annunciate the presence of oil and/or water.
    Type: Application
    Filed: February 27, 2015
    Publication date: September 3, 2015
    Inventors: Dennis W. COSGROVE, David G. EOFF, Salvatore A. MOLA