Patents by Inventor Russell K. Clark

Russell K. Clark 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).

  • Harrow bearing
    Patent number: 6484812
    Abstract: A bearing assembly (10) is taught including a housing (14), a shaft (18) supported within the housing (14) and having an outboard end extending through an opening in an end of the housing (14), a bearing (16) disposed between the shaft (18) and the housing (14) to permit rotation of the shaft (18) within the housing (14); and a harrow engaging member (20), such as a pair of diametrically opposed protrusions or a pair of apertured plates, mounted on the housing (14) and positioned either a) diametrically adjacent the bearing or b) between the bearing and the outboard end of the shaft. A harrow including the bearing assembly (10) is also taught.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: November 26, 2002
    Assignee: Phoenix Rotary Equipment Ltd.
    Inventor: Russell K. Clark