Recycle control system for dock levelers

US 6,499,169 B2
Recycle control system for dock levelers
Norbert Hahn, 6869 Tumble Creek Dr., Franklin, Wis. 53132 (US); Mike Jehn, S52 W23185 Amy Ct., Waukesha, Wis. 53186 (US); Robert Stoewe, 4513 Durand Ave., Racine, Wis. 53405 (US); and Michael A. Swessel, N76 W. 15031 Menomonee Manor Dr., Menomonee Falls, Wis. 53051 (US)
Assigned to
Filed on 10-Apr-2001, as Appl. No.
Int. Cl.7E01D 1/00

US 6,499,169 B2 Recycle control system for dock levelers Norbert Hahn, 6869 Tumble Creek Dr., Franklin, Wis. 53132 (US); Mike Jehn, S52 W23185 Amy Ct., Waukesha, Wis. 53186 (US); Robert Stoewe, 4513 Durand Ave., Racine, Wis. 53405 (US); and Michael A. Swessel, N76 W. 15031 Menomonee Manor Dr., Menomonee Falls, Wis. 53051 (US) Filed on Apr. 10, 2001, as Appl. No. 9/829,675. Application 09/829675 is a division of application No. 09/094295, filed on Jun. 09, 1998, abandoned. Prior Publication US 2001/0039687 A1, Nov. 15, 2001 Int. Cl.7E01D 1/00 U.S. Cl. 148212;71.7 7 Claims 1. A recycling control system for a dock leveler including a pivotally mounted deck, a powered lifting unit for raising the deck, and a lip pivotally mounted to the deck for movement between pendant and extended positions, the control assembly comprising: a lip-position member couplable to the lip for movement therewith such that the position of the lip-position member is indicative of lip position; a switch couplable to the lifting unit and operable to a first condition wherein power is provided to the lifting unit, and operable to a second condition wherein power is not provided to the lifting unit; an actuator disposed on the lip-position member for movement relative thereto, and which follows a first path during movement of the lip from the pendant to the extended position wherein the switch remains in the second condition, and which follows a second path during movement of the lip from an extended to the pendant position wherein the actuator operates the switch to the first condition.