Patents by Inventor Wilbur R. Adams

Wilbur R. Adams 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).

  • Cold weather breathing mask
    Patent number: 4905686
    Abstract: A lightweight face mask for heating surrounding air to be inhaled by a user includes a thin cup-shaped inner shell and an outer shell spaced from and surrounding the inner shell, the inner and outer shells defining a preheating chamber therebetween through which air passes in a counter-current flow pattern before entering a user breathing space inside the inner shell. The mask may include an electric heating element and battery power supply for additionally heating air entering the user breathing space.
    Type: Grant
    Filed: January 12, 1988
    Date of Patent: March 6, 1990
    Assignee: Simulators Limited, Inc.
    Inventor: Wilbur R. Adams
  • Prefabricated pavement devices
    Patent number: 4813811
    Abstract: The invention is directed to a prefabricated composite pavement device comprising a shaped pavement mixture portion bonded to a support portion and a method and apparatus for making the same.
    Type: Grant
    Filed: June 23, 1987
    Date of Patent: March 21, 1989
    Assignee: Simulators Limited, Inc.
    Inventor: Wilbur R. Adams
  • Child resistant buckle for seat belt restraints
    Patent number: 4791711
    Abstract: A child resistant buckle for seat belt restraints comprising a two-part buckle in which the female part, or part containing the release button, has a multi-part release button which can only be operated by a full size hand. A smaller, child's hand, having smaller fingers and thumbs, will not normally apply simultaneous pressure to all of the parts of the release button, which must be actuated simultaneously to release the other part of the buckle.
    Type: Grant
    Filed: November 27, 1987
    Date of Patent: December 20, 1988
    Assignee: Simulators Limited, Inc.
    Inventor: Wilbur R. Adams
  • Roadway warning system
    Patent number: 4790684
    Abstract: A warning system for multi-lane roadways comprising a group of strips placed longitudinally across only the left-most lane of the roadway as referenced by a person facing in the designated direction of traffic flow.
    Type: Grant
    Filed: July 16, 1987
    Date of Patent: December 13, 1988
    Assignee: Simulators Limited, Inc.
    Inventor: Wilbur R. Adams