Patents by Inventor Rodney L. Spilde

Rodney L. Spilde 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).

  • Ventilation system including vent controller apparatus
    Patent number: 5147244
    Abstract: A ventilation system for a building wherein first and second opposing doors are mounted adjacent an opening into the building. Each of the first and second doors include an axis of rotation parallel to each other and parallel to a major surface of each door. A bracket member is pivotally attached to the building for rotation about a first axis which is transverse to each axis of rotation of the first and second doors. Linkage structure is provided for connecting the bracket member to each of the first and second doors such that rotation of the bracket member about the first axis opens and closes the first and second doors. The linkage structure includes link rods connecting the bracket to the first and second doors. A three dimensional ball and socket joint is provided at each end of the first and second link rods to connect the link rods to the bracket and to the respective doors.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: September 15, 1992
    Inventor: Rodney L. Spilde
  • Emergency ventilation system
    Patent number: 4832260
    Abstract: An apparatus and method for controlling emergency ventilation of a liverstock building comprising an environment sensor (12), air operated trip mechanism (14), and a source(10) of compressed air. The trip mechanism (14) is connected to open or close doors, windows or other sources of ventilation in the building in response to the presence or absence of the compressed air. Upon sensing a deviation from a prescribed ventilation norm, the environmental sensor (12) controls application of the compressed air to the trip mechanism (14) via solenoid valves (24, 30) to reverse the state of the building ventilation, i.e., to close the ventilation source if open, or to open the ventilation source if closed.
    Type: Grant
    Filed: July 23, 1987
    Date of Patent: May 23, 1989
    Inventor: Rodney L. Spilde
  • Livestock confinement building wall-vent controller
    Patent number: 4534278
    Abstract: A pneumatic wall-vent closer for use in a thermal-pneumatic automatic temperature control system. The system is used to maintain constant temperature in livestock confinement buildings. The wall-vent closer attaches between the sill of a wall-vent in a confinement building and the wall-vent. As the temperature in the confinement building varies, the pneumatic wall-vent closer automatically opens and closes the wall vents to allow more or less air into the confinement building to maintain a pre-set stable temperature.
    Type: Grant
    Filed: June 9, 1983
    Date of Patent: August 13, 1985
    Inventor: Rodney L. Spilde