Patents by Inventor Robert Karl Sturk

Robert Karl Sturk 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).

  • Main bearing for engine with high belt load
    Patent number: 8608385
    Abstract: A main bearing (20) for supporting a rotating crankshaft (56) includes an upper shell (22) and a lower shell (24). An upper inner surface (32) of the upper shell (22) has an oil supply groove (26) extending circumferentially therealong, an oil stem groove (28) extending obliquely from the oil supply groove (26), and a pair of oil distribution grooves (30) extending from the oil stem groove (28) along and parallel to the oil supply groove (26) to present an F-shape along the upper inner surface (32) of the main bearing (20). The oil grooves (26, 28, 30) provide for improved lubrication of the main bearing (20) at startup and when the engine is idle or stopped, especially in electric and hybrid vehicles. The main bearing (20) also has exceptional strength and load bearing capacity.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: December 17, 2013
    Assignee: Federal-Mogul Corporation
    Inventors: Paul Matthew Ovares, Robert Karl Sturk
  • MAIN BEARING FOR ENGINE WITH HIGH BELT LOAD
    Publication number: 20120294558
    Abstract: A main bearing (20) for supporting a rotating crankshaft (56) includes an upper shell (22) and a lower shell (24). An upper inner surface (32) of the upper shell (22) has an oil supply groove (26) extending circumferentially therealong, an oil stem groove (28) extending obliquely from the oil supply groove (26), and a pair of oil distribution grooves (30) extending from the oil stem groove (28) along and parallel to the oil supply groove (26) to present an F-shape along the upper inner surface (32) of the main bearing (20). The oil grooves (26, 28, 30) provide for improved lubrication of the main bearing (20) at startup and when the engine is idle or stopped, especially in electric and hybrid vehicles. The main bearing (20) also has exceptional strength and load bearing capacity.
    Type: Application
    Filed: May 18, 2011
    Publication date: November 22, 2012
    Inventors: Paul Matthew Ovares, Robert Karl Sturk