Patents Assigned to Windward Products, Inc.
  • Crawl space ventilator system
    Patent number: 4953450
    Abstract: A method, system and apparatus for venting the foundation of a building having a space provided below the floor of the building. Such space is ventilated by exhausting air from the space and drawing air into the space, only after sundown and before sunrise. In the preferred form, a photocell is utilized to set the system into operation by energizing a timer switch which, after it becomes dark as determined by such photocell, a ventilating fan is actuated for a predetermined time and for a predetermined time interval before sunrise.
    Type: Grant
    Filed: September 6, 1989
    Date of Patent: September 4, 1990
    Assignee: Windward Products, Inc.
    Inventor: Paul D. Remondino