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US 10,850,428 B2Granted
Wet cutting saw
OwnerRobert Andrew Irvineinventor
Life of this patent
Estimating the term…
Abstract
A wet cutting saw for cutting a ground portion, the wet cutting saw including a blade rotatable about an axis, a liquid feed conduit for feeding liquid onto a surface of the blade as it rotates, a frame for carrying the blade and configured to travel over a surface of the ground portion, and a mounting assembly that mounts the blade to the frame, at least part of the mounting assembly pivotable relative to the frame to raise and lower the blade relative to the frame.
Claims17
A wet cutting saw for cutting a ground portion, the wet cutting saw comprising:
- a blade rotatable about an axis;
- a liquid feed conduit for feeding liquid onto a surface of the blade as the blade rotates;
- a frame for carrying the blade, the frame having a base and an upper section extending from the base;
- a mounting assembly that mounts the blade to the frame, the mounting assembly comprising an arm and connected to, and pivotable relative to, the frame about a pivot connection between the arm of the mounting assembly and the frame to raise and lower the blade relative to the frame between a lowered position and a raised position, the pivot connection being located on the upper section of the frame, and wherein the arm comprises an upper portion and a lower portion connected to the upper portion at an elbow at an angle, the pivot connection is located at a proximal end of the upper portion, a distal end of the upper portion is connected to a proximal end of the lower portion at the elbow, and a distal end of the lower portion is connected to the blade;
- and
- a drive system comprising a primary motor coupled to the blade, the drive system mounted to the mounting assembly;
- wherein the drive system, including the primary motor, is mounted to the arm of the mounting assembly so that a weight of the drive system provides a downward bias on the arm for lowering the blade with respect to the frame and so that the drive system is raised and lowered with the arm relative to the frame;
- wherein the pivot connection is above a centre of gravity of the arm when the arm is in the lowered position, the centre of gravity of the arm being determined by the arm, and components mounted to the arm comprising the blade, and the primary motor;
- wherein the pivot connection is below the centre of gravity of the arm when the arm is in the raised position;
- a set of steering handles connected to the frame and extending outward from a rear of the frame;
- a front pair of ground engaging wheels connected to the base;
- a rear pair of ground engaging wheels connected to the base;
- wherein the centre of gravity of the arm is substantially different vertically, between the lowered position and the raised position, with respect to the frame;
- wherein the elbow is configured such that the centre of gravity of the arm is substantially identical horizontally, between the lowered position and the raised position, with respect to the frame;
- and
- whereby a force applied to raise the handles raises the rear pair of ground engaging wheels enabling turning the wet cutting saw on only the front pair of ground engaging wheels.
13 more elements
Dependencies are inferred from the claim text.