Frame Grab Bars for Pipe Cut-Off Tool Clamping System
AssigneeRidge Tool Company
InventorsGlen R. CHARTIER, Seth B. BULLOCK, Katherine HALL, Scott KRUEPKE, Robert SKRJANC
Life of this patent
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Abstract
Power tools such as cutting saws with rotary powered blades are described. Also described are various accessories for tools used with cylindrical workpieces such as pipes are described. The accessories include a clamp and saw joint assembly, various quick connection assemblies between a saw and a clamping system, a plunge guide assembly, a latch plate assembly, an interlock switch, a blade guard system, and a chip management system or chip deflector. Also described are related methods of use.
Claims20
A clamping system (2) operatively associated with a tubular workpiece (4) comprising:
- a base (20) including a first arm (2C) and a second arm (2D), wherein the first and second arms (2C, 2D) are pivotally connected and secured to the base (20);
- a frame (420) removably secured to the base (20) and mounted on the tubular workpiece (4) for rotation about a first longitudinal axis (X), wherein the first and second arms (2C, 2D) are biased together for securing the tubular workpiece (4) therebetween, the tubular workpiece (4) being aligned with the first axis (X), wherein the frame (420) defines a plurality of outwardly extending members (424, 426, 428, 430) spaced from an exterior surface portion of the tubular workpiece (4), wherein the plurality of outwardly extending members (424, 426, 428, 430) each include an associated one of a plurality of grab members (440, 442, 444, 446) at a respective distal end portion thereof spaced from the exterior surface portion of the tubular workpiece (4);
- a saw assembly (100) or a pipe-working tool assembly removably secured to one of the base (20) and the frame (420) in fixed relation to the plurality of outwardly extending members (424, 426, 428, 430), wherein the saw assembly (100) includes a blade (101) rotatable about a second axis (A) spaced parallel to the first axis (X), wherein the blade (101) includes an edge portion spaced between the first and second axes (X, A) and adapted for cutting the tubular workpiece (4), wherein rotation of the plurality of grab members (440, 442, 444, 446) about the first axis (X), when the edge portion of the saw blade (101) engages the tubular workpiece (4), causes the blade (101) to cut the tubular workpiece (4).
A clamping system (2) comprising:
- a base (20);
- a frame (420) secured to the base (20), the frame (420) having a plurality of outwardly extending members (424, 426, 428, 430) for positioning about a tubular workpiece (4), wherein each member (424, 426, 428, 430) is parallel to an axis of the tubular workpiece (4).
A clamping system (2) and either a saw assembly (100) or a pipe-working tool assembly comprising:
- a base (20) including a first arm (2C) and a second arm (2D);
- a frame (420) secured to the base (20), the frame (420) including four outwardly extending members (424, 426, 428, 430) for rotation about an axis of a tubular workpiece (4).
Dependencies are inferred from the claim text.