1
Jack F Anderson, Clayton Melrose, Floyd Melrose: Tool apparatus with control to move tool when object approached. Jack F Anderson, Young & Martin, May 21, 1985: US04518043 (117 worldwide citation)

The disclosure in this patent application includes a retractable in-row tiller device that has a parallelogram carriage structure for supporting the outrigger arm and tiller and for retracting and extending the outrigger arm and tiller in relation to the tractor on which it is mounted. It also inclu ...


2
Jack F Anderson, Clayton Melrose: Method and apparatus guiding retractable machinery. Jack F Anderson, James R Young, April 29, 1986: US04585071 (7 worldwide citation)

A retractable tool apparatus is adapted to be mounted on a movable vehicle for working the area around and between objects in a row. The tool apparatus includes an extendable and retractable outrigger arm attachable on one of its ends to the vehicle. A work tool is mounted on the other end of the ou ...


3
Jack F Anderson, Clayton Melrose: Retractable in-row tiller device. Jack F Anderson, Young & Martin, January 1, 1985: US04491183 (7 worldwide citation)

A retractable in-row tiller device is adapted for mounting on a movable vehicle and for tilling the ground around and between objects in a row. An outrigger arm with a rotary tiller mounted on its distal end is retracted inwardly and extended outwardly by a trapeze-type control arm which amplifies t ...