Patents by Inventor Rudolph L. Chase

Rudolph L. Chase 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).

  • Outside air circulation system for walk-in coolers
    Patent number: 5144816
    Abstract: The air circulation system includes a fan unit for discharging filtered ambient air below a predetermined temperature into a walk-in cooler through a damper and exhausting warm air out of the walk-in cooler through a damper by using a discharge fan with the supply fan and discharge fan being controlled by an accustat. The fans, inlet filter and damper are incorporated into a generally rectangular housing that can be easily installed in a wall of a walk-in cooler or other similar enclosure with the air supply being ducted if desired.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: September 8, 1992
    Inventor: Rudolph L. Chase