A tool assembly configured for location on a section of a pipe is operable to both isolate a section of the pipe and perform an intervention into the pipe while maintaining pressure integrity. The tool assembly includes a clamp, a cutting tool and an isolation tool. In use, the clamp sealingly secures the tool assembly to the pipe, the cutting tool performs an intervention operation on the pipe, and the isolation tool isolates the section of pipe in order that repair or replacement of equipment can be effected.

A pipe cutter includes two bodies connected to each other to form a first room. Each body includes a passage. One of the two bodies has a second room. A torsion spring is located in the first room and includes a mounting member and a radial opening. A blade unit includes a pin, a blade, a movable member, a spring and an action member. When activating the action member to drive the movable member to compress the spring, the third contact portion and the second engaging portion of the movable member are disengaged from the groove and the first engaging portion of the pin, and the pin is not restricted and can be removed from the passage. The blade is not restricted by the pin and replaceable.

A pipe cutter includes two bodies connected to each other to form a first room. Each body includes a passage. One of the two bodies has a second room. A torsion spring is located in the first room and includes a mounting member and a radial opening. A blade unit includes a pin, a blade, a movable member, a spring and an action member. When activating the action member to drive the movable member to compress the spring, the third contact portion and the second engaging portion of the movable member are disengaged from the groove and the first engaging portion of the pin, and the pin is not restricted and can be removed from the passage. The blade is not restricted by the pin and replaceable.

The present patent application discloses a pipe cutter, comprises a left housing, a right housing, a blade, small handle, a rotary shaft and a reset mechanism; the left housing and the right housing are fixed together; the blade is rotatable located between the left housing and the right housing; the rotary shaft pass through the left housing and the blade and is fixed with the right housing; the small handle is provided with a blade feeding apparatus and a blade locking apparatus, the blade feeding apparatus is used for controlling the rotation of the blade, the blade locking apparatus is used for fixing the position of the blade; the small handle is mounted on one side of the left housing and the right housing, the small handle is hinged with the left housing and the right housing through blade locking apparatus; the blade is provided with tooth grooves and hook portion, the hook portion is mounted on the left side of the tooth grooves and adjacent to the tooth grooves 8. By cooperation of the using of the blade feeding apparatus and the blade locking apparatus, the operator can cut the plastic pipe with less effort. Meanwhile, the blade locking apparatus ensures the blade will not rebound and improves the effectiveness of pipe cutting. The blade replacement is also convenient.

The present patent application discloses a pipe cutter, comprises a left housing, a right housing, a blade, small handle, a rotary shaft and a reset mechanism; the left housing and the right housing are fixed together; the blade is rotatable located between the left housing and the right housing; the rotary shaft pass through the left housing and the blade and is fixed with the right housing; the small handle is provided with a blade feeding apparatus and a blade locking apparatus, the blade feeding apparatus is used for controlling the rotation of the blade, the blade locking apparatus is used for fixing the position of the blade; the small handle is mounted on one side of the left housing and the right housing, the small handle is hinged with the left housing and the right housing through blade locking apparatus; the blade is provided with tooth grooves and hook portion, the hook portion is mounted on the left side of the tooth grooves and adjacent to the tooth grooves 8. By cooperation of the using of the blade feeding apparatus and the blade locking apparatus, the operator can cut the plastic pipe with less effort. Meanwhile, the blade locking apparatus ensures the blade will not rebound and improves the effectiveness of pipe cutting. The blade replacement is also convenient.

A blade-replaceable cutting tool includes: a first handheld portion; a second handheld portion rotatably connected to the first handheld portion; a cutting structure rotatably connected to the first handheld portion, the cutting structure including a blade mounting plate rotatably mounted to the first handheld portion and a blade detachably mounted to the blade mounting plate; and a locking mechanism configured to lock the blade on the blade mounting plate when in contact with the blade, and to unlock the blade when separated from the blade, so that the blade can be detached from the blade mounting plate.

A blade-replaceable cutting tool includes: a first handheld portion; a second handheld portion rotatably connected to the first handheld portion; a cutting structure rotatably connected to the first handheld portion, the cutting structure including a blade mounting plate rotatably mounted to the first handheld portion and a blade detachably mounted to the blade mounting plate; and a locking mechanism configured to lock the blade on the blade mounting plate when in contact with the blade, and to unlock the blade when separated from the blade, so that the blade can be detached from the blade mounting plate.

A dual action hydraulic piston assembly including a cylinder having first and second inlet ports on a first end and an outlet port on a second end, a conduit connected to the first inlet port and extending into the cylinder, an inner ram slidable along an outer surface of the conduit, and an outer ram slidable between the inner ram and the cylinder. The inner and outer rams are configured to move together toward the second end of the cylinder in response to a fluid being displaced via the first inlet port into the conduit, which displaces a second fluid through the outlet port at a first flow rate. The outer ram is configured to move toward the second end of the cylinder in response to a fluid being displaced via the second inlet port, which displaces the second fluid through the outlet port at a second flow rate.

A service tool for cutting and plugging a utility service line has a body with a receiving portion configured to receive the utility service line and a clamping mechanism movable relative to the body and configured to clamp around at least a portion of an outer circumference of the utility service line. The service tool further includes a cutting blade disposed in the receiving portion and configured to engage the outer circumference of the utility service line and cut the utility service line into a first cut portion and a second cut portion as the cutting blade is rotated about a cutting axis relative to the body. The service tool further has a hub associated with the body. The hub includes a plugging mechanism configured to displace the first cut portion of the utility service line and dispense a plug into the second cut portion of the utility service line.

A service tool for cutting and plugging a utility service line has a body with a receiving portion configured to receive the utility service line and a clamping mechanism movable relative to the body and configured to clamp around at least a portion of an outer circumference of the utility service line. The service tool further includes a cutting blade disposed in the receiving portion and configured to engage the outer circumference of the utility service line and cut the utility service line into a first cut portion and a second cut portion as the cutting blade is rotated about a cutting axis relative to the body. The service tool further has a hub associated with the body. The hub includes a plugging mechanism configured to displace the first cut portion of the utility service line and dispense a plug into the second cut portion of the utility service line.