Metal working – Method of mechanical manufacture – Assembling or joining
Reexamination Certificate
2007-06-05
2007-06-05
Hong, John C. (Department: 3726)
Metal working
Method of mechanical manufacture
Assembling or joining
C029S467000, C029S559000
Reexamination Certificate
active
11167531
ABSTRACT:
A cutting edge cart is disclosed that provides an improved means for replacing the replaceable cutting edges on bladed equipment such as road graders and snow plow. The cart allows a single user to retrieve, transport, and position a replacement cutting edge relative to a mold board of the bladed equipment. Generally, the cart contains a frame, two or more transport assemblies attached to the frame, such as wheels, a movable carrier assembly that contains a cutting edge support assembly, and an adjuster. The adjuster is operable to move the carrier assembly between first and second positions relative to the frame allowing the vertical position of a supported cutting edge to be adjusted. The frame and transport assemblies are disposed such that the cart may be rotated or pivoted from a first generally vertical position to a second generally horizontal position. In this horizontal position, a cutting edge may be received within the cutting edge support and the cart rotated back to the generally vertical position.
REFERENCES:
patent: 3941400 (1976-03-01), Buttner
patent: 4830335 (1989-05-01), Schlitt
patent: 6241227 (2001-06-01), Berdan et al.
patent: 6533260 (2003-03-01), Mock
patent: 6654998 (2003-12-01), Berdan et al.
Lorenz Donald E.
Quam Donald W.
Blade Lift, Inc.
Hong John C.
Marsh & Fischmann & Breyfogle LLP
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