Patents by Inventor Trevor D. Coltrin

Trevor D. Coltrin 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).

  • Central vacuum cleaning system
    Patent number: 11311158
    Abstract: A central vacuum cleaning system having a floor level debris pickup valve preferably mounted in the bottom of a cabinet and connected to a tubular conduit of a vacuum producing unit by a connection assembly. The connection assembly includes a flexible and expandable hose having a pair of end connectors. Each end connector preferably is a bayonet connector. The hose is connected at one end to the rigid tubular conduit of the central vacuum system and the other end connector is pulled through an opening formed in the cabinet by expanding the hose. The expandable hose enables the pickup valve to be attached easily to the other end of the hose, after which the hose is retracted back into a restricted space below the cabinet bottom wall and the pickup valve then attached to the cabinet.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: April 26, 2022
    Assignee: Coltrin Central Vacuum Systems, Inc.
    Inventors: Cory G. Coltrin, Trevor D. Coltrin, Darrell V. Nieschwitz, Greg A. Calderone, Shawn C. Metz
  • Central vacuum cleaning system
    Patent number: 10405713
    Abstract: A central vacuum cleaning system having a floor level debris pickup valve preferably mounted in the bottom of a cabinet and connected to a tubular conduit of a vacuum producing unit by a connection assembly. The connection assembly includes a flexible and expandable hose having a pair of end connectors. Each end connector preferably is a bayonet connector. The hose is connected at one end to the rigid tubular conduit of the central vacuum system and the other end connector is pulled through an opening formed in the cabinet by expanding the hose. The expandable hose enables the pickup valve to be attached easily to the other end of the hose, afterwhich the hose is retracted back into a restricted space below the cabinet bottom wall and the pickup valve then attached to the cabinet.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: September 10, 2019
    Assignee: Coltrin Central Vacuum Cleaning Systems, Inc.
    Inventors: Trevor D. Coltrin, Darrell V. Nieschwitz, Cory G. Coltrin, Greg A. Calderone, Shawn C. Metz