Patents by Inventor Brian J. Hassemer

Brian J. Hassemer 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).

  • Battery pack retention system and apparatus therefor
    Patent number: 5366826
    Abstract: The system includes a battery charger (300) and a battery pack (100). Upon insertion of the battery pack (100) into a retention area (303) of the battery charger (300), a battery pack channel (101) and a corresponding battery charger rail (305) align the battery pack electrical contacts (201) with the electrical contacts (309) of the battery charger. In order to ensure that a reliable electrical connection is made between the two sets of contacts (201, 309), a compliance rib (501) is disposed within the channel (101) of the battery pack (100). The compliance rib (501) creates an interference between the rail (305) and the channel (101), consequently, creating a force against the rail. The interference is calculated to create a sufficient force in combination with the force created by the weight of the battery pack (100) such that the force of the battery pack meets or exceeds the force created by the set of electrical contacts in the battery charger.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: November 22, 1994
    Assignee: Motorola, Inc.
    Inventors: Timothy P. McCormick, Brian J. Hassemer