Patents by Inventor Martin Janek Caspall

Martin Janek Caspall 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: 9266200
    Abstract: A method of manufacturing a roller cage for mounting rollers around a circle in a bearing includes a) making a roller cage blank of cylindrical form, b) cutting the cage blank on opposite diagonal sides to form two generally semi-cylindrical halves, c) re-assembling the two semi-cylindrical halves of the cage blank by releasably clamping adjacent cut edges of each semi-cylindrical half together, and d) either before or after the cutting step, forming pockets for mounting a set of rollers in the cage on a circle about the axis of the reassembled cage. The last step d) allows one to provide pockets which mount the rollers in the correct position relative to the axis of the bearing even though the two semi-cylindrical halves when re-assembled no longer form a circle.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: February 23, 2016
    Assignee: Cooper Roller Bearings Company Ltd.
    Inventor: Martin Janek Caspall
  • Publication number: 20140193112
    Abstract: A method of manufacturing a roller cage for mounting rollers around a circle in a bearing includes a) making a roller cage blank of cylindrical form, b) cutting the cage blank on opposite diagonal sides to form two generally semi-cylindrical halves, c) re-assembling the two semi-cylindrical halves of the cage blank by releasably clamping adjacent cut edges of each semi-cylindrical half together, and d) either before or after the cutting step, forming pockets for mounting a set of rollers in the cage on a circle about the axis of the reassembled cage. The last step d) allows one to provide pockets which mount the rollers in the correct position relative to the axis of the bearing even though the two semi-cylindrical halves when re-assembled no longer form a circle.
    Type: Application
    Filed: March 6, 2012
    Publication date: July 10, 2014
    Applicant: COOPER ROLLER BEARINGS CO., LTD.
    Inventor: Martin Janek Caspall
  • Patent number: 8057105
    Abstract: A cage for use in a roller bearing, said cage comprising a pair of generally semicircular molded plastic parts joined together, the molded plastic parts each comprising a set of pockets for receiving and locating rollers, and releasable fixings at their ends, wherein two generally semicircular molded plastic parts are detachably interconnected to each other by inter-engagement of their respective releasable fixings to form a complete generally circular cage.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: November 15, 2011
    Assignee: Cooper Roller Bearings Company Limited
    Inventors: Brian Edward Earthrowl, Martin Janek Caspall
  • Publication number: 20110255820
    Abstract: A split roller bearing comprising an inner ring including an inner race, an outer ring including an outer race, a cage mounted between the inner and outer races, said cage mounting t rollers which engage the inner and outer races, said inner ring and inner race, outer ring and outer race, and cage each comprising two substantially semicircular parts, the relevant semicircular parts being mounted end-to-end to provide a circular component, whereby the two semicircular parts of the inner ring and inner tapered race, outer ring and outer race, and cage, may be separated from one another to allow the roller bearing to be dismantled when worn without removal of the component supported by the bearing.
    Type: Application
    Filed: June 28, 2011
    Publication date: October 20, 2011
    Applicant: Cooper Roller Bearings Company Limited
    Inventors: Martin Janek Caspall, Stuart Crispin Morris, Brian Edward Earthrowl
  • Publication number: 20080267553
    Abstract: A split taper roller bearing comprising an inner ring including an inner tapered race, an outer ring including an outer tapered race, a cage mounted between the inner and outer tapered races, said cage mounting tapered rollers which engage the inner and outer races, said inner ring and inner tapered race, outer ring and outer tapered race, and cage each comprising two generally semicircular parts, the relevant semicircular parts being mounted end-to-end to provide a circular component, whereby the two semicircular parts of the inner ring and inner tapered race, outer ring and outer tapered race, and cage, may be separated from one another to allow the taper roller bearing to be dismantled when worn without removal of the component supported by the bearing.
    Type: Application
    Filed: April 23, 2008
    Publication date: October 30, 2008
    Applicant: COOPER ROLLER BEARINGS COMPANY LIMITED
    Inventors: Brian Edward Earthrowl, Martin Janek Caspall
  • Publication number: 20080260317
    Abstract: A cage for use in a roller bearing, said cage comprising a pair of generally semicircular moulded plastic parts joined together, the moulded plastic parts each comprising a set of pockets for receiving and locating rollers, and releasable fixing means at their ends, wherein two generally semicircular moulded plastic parts are detachably interconnected to each other by inter-engagement of their respective releasable fixing means to form a complete generally circular cage.
    Type: Application
    Filed: April 22, 2008
    Publication date: October 23, 2008
    Applicant: COOPER ROLLER BEARINGS COMPANY LIMITED
    Inventors: Brian Edward Earthrowl, Martin Janek Caspall