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US 11,697,189 B2Granted
Clamping systems for pipes
AssigneeRidge Tool Company
InventorsGlen R. Chartier, Scott Kruepke, Lawrence Feskanich, Jr., Katherine Hall, Don Embree, Seth Bullock, Robert Skrjanc
Life of this patent
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Abstract
Systems for cutting cylindrical workpieces such as pipe are described. The systems include a clamping assembly and can be used in various methods. In one method, the clamping assembly and a cutting tool or saw is used on a rotating workpiece. In another method, the clamping assembly and a cutting tool or saw is used on a stationary workpiece. Also described are frames that can be secured to the clamping assembly.
Claims23
A clamping system (10) comprising:
- a base (20) defining a threaded member (22);
- a pair of arms (30, 40) pivotally supported by the base (20), each arm (30, 40) defining a proximal end (32, 42) and an opposite distal end (34, 44);
- a shaft (70) threadedly engaged with the threaded member (22) of the base (20), the shaft (70) defining a proximal end (72) and an opposite distal end (74);
- a central carriage (80) rotatably affixed to the distal end (74) of the shaft (70) and slideably retained to the pair of arms (30, 40);
- wherein rotation of the shaft (70) relative to the base (20) results in
- (i) axial displacement of the shaft (70) and linear displacement of the central carriage (80), (ii) pivotal displacement of the pair of arms (30, 40);
- a force limit system (130), wherein the shaft (70) is in the form of a threaded collar (140), and wherein the collar (140) defines a proximal end (141) and an opposite distal end (142),
- an outer periphery threaded region (144) extending at least partially between the proximal end (141) and the distal end (142), and
- a central bore (146) extending between the proximal end (141) and the distal end (142),
- wherein the force limit system includes:
- a central shaft (180) extending through the central bore (146) of the threaded collar (140);
- a handle (150) including a post (160) engageable with the proximal end (141) of the threaded collar (140);
- and
- one or more springs (112) disposed between the distal end (142) of the threaded collar (140) and the central carriage (80).
11 more elements
A clamping system (10) comprising:
- a base (20) defining a threaded member (22);
- a pair of arms (30, 40) pivotally supported by the base (20), each arm (30, 40) defining a proximal end (32, 42), an opposite distal end (34, 44), and wherein each arm (30, 40) of the pair arms includes one or more rollers (50, 60);
- a shaft (70) threadedly engaged with the threaded member (22) of the base (20), the shaft (70) defining a proximal end (72) and an opposite distal end (74);
- a central carriage (80) rotatably affixed to the distal end (74) of the shaft (70) and slideably retained to the pair of arms (30, 40);
- wherein rotation of the shaft (70) relative to the base (20) results in (i) axial displacement of the shaft (70) and linear displacement of the central carriage (80), (ii) pivotal displacement of the pair of arms (30, 40);
- a brake system (190) including a lever (192) moveably attached to the central carriage (80) and selectively positionable between
- (i) an engaged position in which the lever (192) contacts one or more rollers (90) secured to the central carriage (80) and prevents rotation of the rollers (90), and
- (ii) a disengaged position in which the lever (192) is free from contact with the one or more rollers (90) secured to the central carriage (80) thereby enabling rotation of the rollers (90).
5 more elements
Dependencies are inferred from the claim text.