US 6,982,638 B2
Self-canceling turn signal
John David Bernosky, Ashland, Pa. (US)
Assigned to Mack Trucks, Inc., Allentown, Pa. (US)
Filed on Dec. 09, 2003, as Appl. No. 10/730,037.
Prior Publication US 2005/0122215 A1, Jun. 09, 2005
Int. Cl. B60Q 1/40 (2006.01)
U.S. Cl. 340—476 20 Claims
OG exemplary drawing
 
1. A self-canceling turn signal comprising:
an inner wheel rotating at an inner velocity;
an outer wheel rotating at an outer velocity;
a differential signal substantially proportional to a difference between said inner and outer velocities; and
a turn signal responsive to said differential signal, said turn signal signaling a turn while said differential signal is greater than a predetermined differential signal.