Patents by Inventor John C. Bartz

John C. Bartz 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).

  • Patent number: 5623893
    Abstract: A first adjustment arrangement facilitates adjustment of a plenum in a first direction of movement relative to a fan axis and a second adjustment arrangement facilitates adjustment of a shroud in a second direction of movement transverse the first direction of movement. A plurality of fasteners secures the adjusted plenum to the radiator and a plurality of fasteners secures the adjusted shroud to the plenum. A pilot arrangement supports and guides the shroud on the plenum during adjustment and maintains the shroud in position during fastening of the shroud to the plenum.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: April 29, 1997
    Assignee: Caterpillar Inc.
    Inventors: John C. Bartz, Brian S. Howard, Randall G. Peck
  • Patent number: 5499674
    Abstract: The design and assembly of past modular cooling systems required that cooling modules with different fluids be separated, lowering the efficiency of the system. The present invention overcomes this problem by providing a modular cooling system with a plurality of cooling modules, one of which is a hydraulic oil cooler. The cooling modules are connected to a bottom tank which has a top plate with a pair of openings 64,68 therethrough in each cooling module location so that fluid communication is established between the plurality of cooling modules and the bottom tank. However, fluid communication is blocked between the hydraulic oil cooler module and the bottom tank by inserting a plug in the openings so that fluid within the bottom tank is not leaked to the atmosphere. This results in the ability to mount the hydraulic oil cooler module on the bottom tank along with the remaining plurality of cooling modules having a different fluid therein.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: March 19, 1996
    Assignee: Caterpillar Inc.
    Inventors: John C. Bartz, Paul J. Byrne