Patents by Inventor Jonathan K. Marin

Jonathan K. Marin 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).

  • Universal retrofit valve actuator and system
    Patent number: 5735456
    Abstract: An actuator has a drive gear set to interact with a driven lug to rotate the lug and whatever the lug is fixed to. The actuator must be separately anchored to interact with the lug. The drive gear and the lug have cams that are spaced apart, so that when the lug is fixed to an object which is off its linear axis, there is play in the gear relationship to allow rotation to function. In a system with an actuator, such as a thermostat, temperature can be controlled by turning a valve on a radiator on and off. End of travel is sensed by a current surge stopping the acutation. The system is ideal to operate radiators in a steam heat system.
    Type: Grant
    Filed: September 7, 1994
    Date of Patent: April 7, 1998
    Assignee: The Steam-O-Stat Company
    Inventors: Jonathan K. Marin, James R. Pope, Richard C. Steele, Ronald R. Bilodeau, Jr.