US 12,460,362 B1
Snow oar for manually clearing snow and ice
Michael Anthony Metzger, Olney, MD (US)
Filed by Michael Anthony Metzger, Olney, MD (US)
Filed on Jan. 1, 2024, as Appl. No. 18/401,704.
Application 18/401,704 is a continuation of application No. 16/377,387, filed on Apr. 8, 2019, granted, now 11,859,357.
Claims priority of provisional application 62/654,371, filed on Apr. 7, 2018.
This patent is subject to a terminal disclaimer.
Int. Cl. E01H 5/02 (2006.01); A01B 1/02 (2006.01); A01B 1/22 (2006.01); E01H 5/06 (2006.01)
CPC E01H 5/02 (2013.01) [A01B 1/02 (2013.01); A01B 1/22 (2013.01); E01H 5/061 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An implement for manually clearing snow and the like, said implement comprising:
an elongated handle comprising an upper end and a lower end, the handle defining a handle length direction along its elongation axis;
a blade having:
a blade height direction oriented upwardly and downwardly between an upper edge and a lower edge of said blade,
a front face and a back face, said front face and said back face bounded upwardly and downwardly by the lower edge and by the upper edge, said front face being, in an absence of a load, arcuately curved in said blade height direction between said upper edge and said lower edge so that said front face is concave,
a blade width direction running substantially transverse to said blade height direction and substantially parallel to said front face of said blade;
a first side edge and a second side edge,
handle attachment means to secure said lower end of said handle to said blade proximate to a trailing edge of said blade and centrally in the blade width direction, whereby said handle thereby extends upwardly and away from said blade in a direction substantially parallel to said blade height direction,
a blade height defined as a maximum extent of said blade between said upper edge and said lower edge in said blade height direction,
a blade width defined as a maximum extent of said blade between said first side edge and second side edge in said blade width direction, and
a blade depth of curvature defined as a maximum depth of the curvature of a front surface of said blade;
wherein said lower end of said elongated handle is attached to said blade with said handle attachment means;
wherein a handle length is defined as the length of the attached elongated handle measured from said upper edge of said blade to a furthest extent of said upper end of said handle;
wherein said handle length is in the range from about 1,397 to 1,900 mm;
wherein said blade height is in the range from about 254 to 318 mm;
wherein said blade width is in the range from about 101 to 242 mm; and
wherein said blade depth of curvature is in the range from about 12 to 38 mm.