Patents by Inventor Michael D. Obermeyer

Michael D. Obermeyer 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).

  • Thermally efficient, liquid cooled housing for dynamoelectric machine
    Patent number: 5623175
    Abstract: An annular, cast housing for a dynamoelectric machine defines a single internal, circumferential, liquid coolant circulation passage having a main portion of flat, rectangular cross-section having a width extending axially across the housing and a length extending circumferentially around a majority of the housing and, at opposite ends of the main portion, transitional portions narrowing in width from opposite axial sides so that the transitional portions pass each other on the narrowing sides and smoothly convert from the flat, rectangular cross-section to a circular cross-section. The transitional portions end in conduits substantially aligned with each other and oriented in substantially opposite directions.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: April 22, 1997
    Assignee: General Motors Corporation
    Inventors: Jeffrey J. Ronning, Michael D. Obermeyer