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
U.S. Cl. 14-71.7
7 Claims
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.