PIPE CUTTER
First Claim
1. A pipe cutter for cutting a pipe, the pipe cutter comprising:
- a cutting head assembly including a first carriage and a second carriage spaced apart to define a cutting area, the first carriage supporting a cutting mechanism and the second carriage configured to support a pipe within the cutting area, wherein the carriages have a locked state and an unlocked state, andfurther wherein when the carriages are in the unlocked state, the carriages are movable relative to each other and biased into the cutting area;
a drive assembly configured to rotate the cutting head assembly; and
a locking mechanism configured for changing the carriages from the unlocked state to the locked state and for holding the carriages in the locked state, the locking mechanism comprising,an actuation member rotatably coupled to the first carriage, wherein rotation of the cutting head assembly causes rotation of the actuation member relative to the first carriage, anda locking member configured for engagement with the first carriage and the second carriage upon rotation of the actuation member, wherein engagement of the locking member with the first carriage and the second carriage holds the carriages in the locked state.
1 Assignment
0 Petitions
Accused Products
Abstract
A pipe cutter for cutting a pipe includes a cutting head assembly having a first carriage and a second carriage spaced apart to define a cutting area. The first carriage supports a cutting mechanism, and the second carriage is configured to support a pipe within the cutting area. The carriages have a locked state and an unlocked state such that when the carriages are in the unlocked state, the carriages are movable relative to each other and biased into the cutting area. The pipe cutter also includes a drive assembly configured to rotate the cutting head assembly and a locking mechanism configured for changing the carriages from the unlocked state to the locked state and for holding the carriages in the locked state. The locking mechanism includes an actuation member rotatably coupled to the first carriage.
121 Citations
60 Claims
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1. A pipe cutter for cutting a pipe, the pipe cutter comprising:
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a cutting head assembly including a first carriage and a second carriage spaced apart to define a cutting area, the first carriage supporting a cutting mechanism and the second carriage configured to support a pipe within the cutting area, wherein the carriages have a locked state and an unlocked state, and further wherein when the carriages are in the unlocked state, the carriages are movable relative to each other and biased into the cutting area; a drive assembly configured to rotate the cutting head assembly; and a locking mechanism configured for changing the carriages from the unlocked state to the locked state and for holding the carriages in the locked state, the locking mechanism comprising, an actuation member rotatably coupled to the first carriage, wherein rotation of the cutting head assembly causes rotation of the actuation member relative to the first carriage, and a locking member configured for engagement with the first carriage and the second carriage upon rotation of the actuation member, wherein engagement of the locking member with the first carriage and the second carriage holds the carriages in the locked state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A pipe cutter for cutting a pipe, the pipe cutter comprising:
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a cutting head assembly including a first carriage and a second carriage spaced apart to define a cutting area, the first carriage including a cutting mechanism and a biasing arm having a first portion and a second portion, the first portion of the biasing arm supporting the cutting mechanism, and the second carriage configured to support a pipe within the cutting area, wherein the carriages have an unlocked state and a locked state for cutting the pipe; a drive assembly configured to rotate the cutting head assembly; and an actuation member rotatably coupled to the second portion of the biasing arm, wherein upon rotation of the cutting head assembly the actuation member rotates relative to the first carriage and deflects the biasing member toward the second carriage such that the first carriage is in the locked state and a force acts on the cutting mechanism to cut the pipe. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A pipe cutter for cutting a pipe, the pipe cutter comprising:
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a cutting head assembly including, a first carriage including a biasing arm and a cutting mechanism, a second carriage spaced apart from the first carriage to define a cutting area, the second carriage including a support surface for supporting a pipe within the cutting area, an over-center position for the pipe, the over-center position defined by the cutting mechanism and the support surface, wherein the carriages have an unlocked state for inserting the pipe into the cutting area and a locked state for cutting the pipe, wherein when the first carriage is in the unlocked state the first carriage is movable relative to the second carriage and is biased into the cutting area, and a spring biasing the second carriage into the cutting area such that when the second carriage is in the unlocked state, the second carriage is movable relative to the first carriage; a drive assembly configured to rotate the cutting head assembly; and a locking mechanism configured for moving the carriages from the unlocked state to the locked state and for holding the carriages in the locked state when the pipe is positioned in the over-center position, the locking mechanism comprising, an actuation member rotatably coupled to the first carriage, wherein rotation of the cutting head assembly causes rotation of the actuation member relative to the first carriage, and a locking member configured for engagement with the first carriage and the second carriage upon rotation of the actuation member, wherein engagement of the locking member with the first carriage and the second carriage holds the carriages in the locked state. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. A pipe cutter for cutting a pipe, the pipe cutter comprising:
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a housing having a cutting head portion and a handle portion; a cutting head assembly contained within the cutting head portion of the housing, the cutting head assembly including a first carriage and a second carriage spaced apart to define a cutting area, the first carriage supporting a cutting mechanism and including a biasing arm having a first portion supporting the cutting mechanism and a second portion, and the second carriage including a support surface, wherein the cutting mechanism and the support surface define an over-center position for the pipe; wherein the carriages have an unlocked state and a locked state, wherein when the carriages are in the unlocked state, the carriages are movable relative to each other and biased into the cutting area; a spring biasing the second carriage into the cutting area; a drive assembly configured to rotate the cutting head assembly; a cam member rotatably coupled to the second portion of the biasing arm, wherein rotation of the cutting head assembly causes rotation of the cam member relative to the first carriage; a locking member configured for engagement with the first carriage and the second carriage upon rotation of the cam member, wherein engagement of the locking member with the carriages holds the carriages in the locked state; and an actuator member fixed relative to the cutting head assembly, wherein the actuator member engages the cam member as the cutting head assembly rotates to rotate the cam member. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60)
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Specification