Patents by Inventor Jerold W. Bushong

Jerold W. Bushong 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).

  • Hearing aid ear piece having disposable compressible polymeric foam sleeve
    Patent number: 4880076
    Abstract: Detachably secured to the ear piece of a hearing aid is a user-disposable sleeve comprising soft polymeric retarded recovery foam that can be compressed to be freely insertable into a person's ear canal and then allowed to recover to become wedged in the canal. The sleeve preferably includes a flexible, elongated plastic duct over which the foam fits, and the duct is formed with a screw thread of a rigid plastic which mates with a screw thread on the ear piece for easy attachment and removal. The external surface of the foam preferably is substantially cylindrical and can be formed with flutes to provide venting of the user's ear.
    Type: Grant
    Filed: December 5, 1986
    Date of Patent: November 14, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Carl S. Ahlberg, Davis W. Chamberlin, Jerold W. Bushong, Robert J. Oliveira, Vasant V. Kolpe