Patents by Inventor Peter D. Halstead

Peter D. Halstead 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).

  • Fitting and retention system for headgear
    Patent number: 5381560
    Abstract: A system for fitting headgear, such as a bicycle helmet, to the head of a user without requiring fit or sizing pads. The fit system includes an elongate fitting structure having a middle portion and a pair of opposed ends. The opposed ends are attached to the headgear in a tensioned state so that the middle portion surrounds at least a portion of the occipital protuberance and the tension in the strap maintains the headgear closely adjacent the cranium. In addition, compatible retention systems are disclosed for helping to maintain the helmet on the head of the user.
    Type: Grant
    Filed: March 23, 1993
    Date of Patent: January 17, 1995
    Assignee: PDH Corporation
    Inventor: Peter D. Halstead
  • Protective helmet with self-contained air pump
    Patent number: 5083320
    Abstract: A protective helmet having an outer shell and an inner liner is disclosed. The liner includes a plurality of air compartments interconnected by a number of air channels. A self-contained, tactile actuatable air pump is mounted to the helmet so as to be carried thereby even when the helmet is in use.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: January 28, 1992
    Assignee: Athletic Helmet, Inc.
    Inventor: Peter D. Halstead