Patents by Inventor John R. Taft

John R. Taft 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).

  • Patent number: 4666117
    Abstract: A low profile shelf lock of improved construction is disclosed for securing shelves in cabinets and the like. The shelf lock includes a body portion formed of a bottom half and a top half resiliently joined thereto at an angle and defining a rectangular window. A resilient crescent-shaped protrusion is formed in the top half of the body portion and defines a shelf-engaging semicircular edge that extends substantially along the upper length of the window. A shelf support extends from the bottom half of the body portion in a direction normal thereto and flush with the bottom of the window. One or more reinforcing webs support the bottom of the shelf support to the bottom half of the body portion. A post extends from the bottom half of the body portion in a direction normal thereto but opposite to that of the shelf support and for a distance about one half of the shelf support. Preferably the post is fluted. Preferably, the angle between the top half and the bottom half of the body portion is about nine degrees.
    Type: Grant
    Filed: October 9, 1985
    Date of Patent: May 19, 1987
    Assignee: P.X. Industries, Inc.
    Inventor: John R. Taft
  • Patent number: 4392780
    Abstract: A vertical rotatable shaft is fitted with sets of radial arms extending from it to which are connected the leading edges of vanes rotatable about that member as axis. The vanes have sheets of flexbile material so that they may act like sails under pressure of the wind. A cam track, machined in a horizontal surface of a planar member just adjacent and outside the path of the vanes, guides the trailing edges of the vanes so that as the shaft rotates, the vanes are oriented about their axes to reach, run and tack before the wind. The member having the surface defining the cam track is attached to a tail assembly that orients the cam track to the wind direction. The inner assembly, which is pinned to the shaft makes a power rotor. The outer assembly which is free to rotate independently of the shaft is a cam cage.
    Type: Grant
    Filed: April 11, 1978
    Date of Patent: July 12, 1983
    Inventor: John R. Taft