Patents by Inventor Darwin L. Gwin

Darwin L. Gwin 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).

  • Supercharger vent
    Patent number: 5281116
    Abstract: An intake manifold (18) of an engine (10) includes a Roots-type supercharger (26) having rotors (28,29) driven by timing gears (72,74) disposed in a gear chamber (62) having a self contained oil supply and vent 98. The vent is formed in an input drive shaft (52) of the supercharger. The vent embodiments of FIGS. 2-4 include a radially extending passage opening into gear chamber (62) and effective to sling oil mist back into the gear chamber.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: January 25, 1994
    Assignee: Eaton Corporation
    Inventor: Darwin L. Gwin