Patents by Inventor Alexander P. Krstovic

Alexander P. Krstovic 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).

  • Vehicle oil drainage apparatus and method
    Patent number: 5285824
    Abstract: An oil drainage catch pan (A) having an open top (10) for receiving used engine oil drained therein has a reservoir (B) on one end of the pan with a discharge spout (C) and a container (D) connected by a coupling (E) to the spout. After collecting the used oil in the catch pan, the catch pan is tilted causing the used oil to flow to the reservoir and drain through the spout into the container for containment and transport to a suitable location.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: February 15, 1994
    Inventor: Alexander P. Krstovic
  • Curved stairway and method
    Patent number: 5058339
    Abstract: A curved stairway is illustrated wherein the usual wooden components, including the stringers A, are provided with steel reinforcement, including metallic stringers B provided with cross bracing D and E in order to provide a composite structure affording rigidity with minimal reinforcement.
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: October 22, 1991
    Inventor: Alexander P. Krstovic
  • Apparatus for treating a moving web
    Patent number: 4301602
    Abstract: Apparatus for extracting liquid from a moving web having reduced suction requirements, conserving space and being more servicable may be provided through the use of an upper wear surface constructed of ultra high molecular weight polyethylene having a transverse slot therein over which the web passes, together with elongated transverse inserts for blocking end portions of the slot responsive to movement of the web from side to side as it drifts or wanders during its movement over the slot.
    Type: Grant
    Filed: January 8, 1981
    Date of Patent: November 24, 1981
    Assignee: Fintex, Inc.
    Inventors: Edward A. Grondin, Lawrence R. Tulloch, Martin P. Perkins, Jr., Alexander P. Krstovic, Bryon W. McCoy, Kevin P. Morey