Manually Operated Lever Rigid With Crank Axle Patents (Class 172/429)
  • Agricultual implement incorporating disc opener apparatus
    Patent number: 8474546
    Abstract: A packing pressure adjustment assembly for a ground opener unit of an agricultural implement includes a spring interconnected between a rotatable pressure adjustment arm and a trailing arm to which a packer wheel is rotatably mounted. The pressure adjustment arm is centered about an axle of the ground opener unit and is movable between a set of mounting positions that are defined by a set of teeth spaced and arced from one another along a frame portion of the ground opener unit. As the pressure adjustment arm is rotated, the amount of force exerted by the spring on the trailing arm is varied. The packing pressure adjustment assembly is relatively compact and is useful in providing high packing forces, such as a packing force in excess of 100 lbs.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: July 2, 2013
    Assignee: CNH Canada, Ltd.
    Inventor: Robin B. Schilling
  • Packing pressure adjustment assembly for a ground opener unit
    Patent number: 8235134
    Abstract: A packing pressure adjustment assembly for a ground opener unit of an agricultural implement includes a spring interconnected between a rotatable pressure adjustment arm and a trailing arm to which a packer wheel is rotatably mounted. The pressure adjustment arm is centered about an axle of the ground opener unit and is movable between a set of mounting positions that are defined by a set of teeth spaced and arced from one another along a frame portion of the ground opener unit. As the pressure adjustment arm is rotated, the amount of force exerted by the spring on the trailing arm is varied. The packing pressure adjustment assembly is relatively compact and is useful in providing high packing forces, such as a packing force in excess of 100 lbs.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: August 7, 2012
    Assignee: CHN Canada, Ltd.
    Inventor: Robin B. Schilling
  • Scarifier and moss rake adapted to be fitted to a small power driven cultivator
    Patent number: 4923016
    Abstract: A power operated hand guided device is designed to scarify, edge, and aerate lawns and grass. It comprises tools in the form of blades (26) which rotate in a vertical plane about the common axis of a pair of tool-holder shafts. Each tool holder shaft (21) is rotatably connected to a bearing (12) supported on a vertically adjustable beam (23) having wheels (24 and 25) or rollers at each end. A brake (37) which retards the forward movement by friction with the ground is connected to the motor assembly by a rod (38).
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: May 8, 1990
    Assignee: Forges des Margerides S.A.
    Inventor: Rene F. Moise