Patents by Inventor Willard G. Sylvester

Willard G. Sylvester 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: 4000520
    Abstract: Described is an improved headgear support of the internal suspension system type for supporting the head in spaced relation within a rigid headpiece. The improvement comprises an elongated nape strap disposed adjacent the rear portion of the headpiece for contacting the nape of the wearer's neck. Each end of the nape strap is disposed adjacent respective opposite sides of the headpiece. Means are provided for tensioning the nape strap and for locking the nape strap in a tensioned state so that the wearer's head can be locked within the headpiece between the suspension and the nape strap. In one embodiment of the invention, the tensioning and locking means comprises a lever arm-ratchet bar assembly and in another embodiment, the tensioning and locking means comprises a spool assembly.
    Type: Grant
    Filed: March 21, 1975
    Date of Patent: January 4, 1977
    Assignee: Arthur D. Little, Inc.
    Inventors: Noel A. Svendsen, Willard G. Sylvester