Patents by Inventor David A. Hogrewe, Jr.

David A. Hogrewe, Jr. 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).

  • Fastener construction
    Patent number: 5360304
    Abstract: A locknut including a body having a stud receiving inner surface and an outer surface having a ridge with a shoulder and a cylindrical portion next to the shoulder, an O-ring mounted on the cylindrical portion, a shroud having a cylindrical portion which overlies the cylindrical portion of the nut and engages the O-ring on the cylindrical portion of the nut and conceals it when a shoulder on the cylindrical portion of the shroud is in engagement with the shoulder on the ridge of the nut. The cylindrical portion of the nut has an axial length which is greater than the cylindrical portion of the shroud so that the end of the nut protrudes beyond the end of the shroud when the above-mentioned shoulders are in engagement. A bolt having a head containing structure such as described above relative to the locknut.
    Type: Grant
    Filed: May 11, 1993
    Date of Patent: November 1, 1994
    Assignee: McGard, Inc.
    Inventors: David F. Notaro, David A. Hogrewe, Jr.