Patents by Inventor Carlos T. San Luis

Carlos T. San Luis 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: 5674129
    Abstract: A shield assembly for a power take-off shaft protruding from a tractor has first and second generally vertical, laterally spaced side plates adapted to be positioned on opposite lateral sides of the shaft. A cover extends between the side plates and is adapted to be positioned above the shaft. The cover is pivotable about a horizontal pivot axis and movable in a generally linear direction between a first pivoting position and a second linearly displaced pivoting position. A positioning member is disposed on one of the cover and the first side plate, and first and second stops are disposed on the other of the cover and the first side plate. The first stop and positioning member are spaced approximately the same radial distance from the horizontal pivot axis when the cover is in the first pivoting position, and the second stop and positioning member being spaced approximately the same radial distance from the horizontal pivot axis when the cover is in the second linearly displaced pivoting position.
    Type: Grant
    Filed: June 9, 1995
    Date of Patent: October 7, 1997
    Assignee: Case Corporation
    Inventors: Stephen E. Burns, Carlos T. San Luis
  • Patent number: 4862971
    Abstract: A sway limiting apparatus for a tractor hitch assembly including draft links which are vertically movable between a lower operative position and an upper transport position. The sway limiting apparatus includes a telescopic linkage assembly whose operative effectiveness in limiting lateral sway of the hitch assembly is controlled by a cam defining a cam profile. The cam profile and the linkage assembly cooperate to normally control lateral sway of the hitch assembly as a function of the vertical position of a draft link relative to the horizontal.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: September 5, 1989
    Assignee: J. I. Case Company
    Inventors: Joseph A. Azzarello, Carlos T. San Luis, Gerald L. Wagenbach
  • Patent number: 4398745
    Abstract: A claw hitch for a lower link of a three point tractor linkage comprising a self-locking mechanism with over-center spring biased lever lockingly engageable with a ball of an implement coupling rod.
    Type: Grant
    Filed: June 1, 1981
    Date of Patent: August 16, 1983
    Assignee: International Harvester Co.
    Inventors: Joseph A. Azzarello, Carlos T. San Luis