US 7,603,798 B2
Self-adjusting snow plow
Charles M. Schmeichel, Jamestown, N. Dak. (US)
Assigned to AGRI-COVER, Inc., Jamestown, N. Dak. (US)
Filed on May 07, 2004, as Appl. No. 10/841,740.
Application 10/841740 is a continuation of application No. 10/404164, filed on Mar. 31, 2003, granted, now 6,817,118.
Prior Publication US 2004/0205985 A1, Oct. 21, 2004
This patent is subject to a terminal disclaimer.
Int. Cl. E01H 5/04 (2006.01)
U.S. Cl. 37—232  [37/231; 37/267; 172/811] 46 Claims
OG exemplary drawing
 
1. A snow plow for attachment to a vehicle, the snow plow comprising:
a mounting apparatus having a hitch tongue interconnected to a mounting frame, the mounting frame including an interconnecting member and two mounting uprights; the mounting uprights being interconnected by the interconnecting member, the hitch tongue being securable to the vehicle; and
a plow blade, the plow blade including two retention members constructed and arranged to disengageably secure the plow blade to the mounting uprights during use; wherein the retention members are arranged and configured such that the plow blade can be disengaged from the mounting apparatus by lifting the plow blade so that the retention members are raised above the mounting uprights.