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公开(公告)号：US20220341508A1
公开(公告)日：2022-10-27
申请号：US17862939
申请日：2022-07-12
Applicant: The Charles Machine Works, Inc.
Inventor： Robert F. Crane , Mark D. Randa , Steven W. Wentworth
Abstract: A machine for extracting a ductile pipe. The machine has a vise which can grip the pipe, and a wire clamp. Each of the wire clamp and vise are supported on a carriage which is movable relative to a frame. This enables the vise to grip and pull the ductile pipe. Additionally, a wire strand may be disposed through the pipe from a far end to the end at which the machine is placed. The wire clamp allows the machine to pre-stress the strand to improve the extraction of the ductile pipe.
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公开(公告)号：US20220136335A1
公开(公告)日：2022-05-05
申请号：US17517901
申请日：2021-11-03
Applicant: The Charles Machine Works, Inc.
Inventor： Larry G. Morse , Mark D. Randa
Abstract: A system and for providing a bore sight in a piercing tool. A transmitter emits a magnetic field. The flux lines which emanate along the transmitter axis are substantially straight. A receiver at a remote, target location can detect these flux lines. The receiver and transmitter are oriented such that the substantially straight flux line are along an intended bore path. Then, a piercing tool or other boring tool is oriented along the same path and a bore is created.
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公开(公告)号：US20200158261A1
公开(公告)日：2020-05-21
申请号：US16774255
申请日：2020-01-28
Applicant: The Charles Machine Works, Inc.
Inventor： Steven W. Wentworth , Robert F. Crane , Mark D. Randa
Abstract: A pipe extraction machine can be used to remove a buried pipe from the ground. The machine has a carriage with jaws that grip the buried pipe. While gripped, the carriage moves relative to a support structure to pull the pipe out of the ground. Jaws are actuated by rotating clamp plates and maintained in opposition by static horizontal grooves. The jaws remain opposed and aligned during rotation of the clamp plates. A pipe shear may remove the pipe one piece at a time. A pipe puller can be used at the back end of the pipe being removed to simultaneously install a new pipe along the same path.
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公开(公告)号：USD1018244S1
公开(公告)日：2024-03-19
申请号：US29825892
申请日：2022-02-07
Applicant: The Charles Machine Works, Inc.
Designer： Walter George Thompson , Mark D. Randa
Abstract: FIG. 1 is a left side view of a pipe slitter, with a sharp edge of a slitter blade shown at the left side of the blade. A call-out in alternating long and short dash lines is provided to show the outer limits of FIG. 9.
FIG. 2 is a right side view of thereof, with the sharp edge of the slitter blade shown at the right.
FIG. 3 is a front view thereof, with the sharp edge facing out of the page.
FIG. 4 is a back view thereof.
FIG. 5 is a top view thereof.
FIG. 6 is a bottom view thereof. In the bottom view, no claimed surface is visible.
FIG. 7 is a top front left perspective view thereof.
FIG. 8 is a top back right perspective view thereof; and,
FIG. 9 is a left side view of the pipe slitter as shown in FIG. 1. The alternating long and short dashed line about the outside of the figure indicates the metes and bounds of the view, as shown in FIG. 1.
The broken lines shown in the figures are for the purpose of illustrating portions of the pipe slitter and form no part of the claimed design. The line with alternating dot-dash is a boundary line denoting the edges of the claimed design.
Lines which do not connect to adjacent lines and stippling are provided to show contour and are not a discrete surface feature.-
公开(公告)号：US20210364102A1
公开(公告)日：2021-11-25
申请号：US17397412
申请日：2021-08-09
Applicant: The Charles Machine Works, Inc.
Inventor： Robert F. Crane , Mark D. Randa , Steven W. Wentworth
Abstract: A machine for extracting a ductile pipe. The machine has a vise which can grip the pipe, and a wire clamp. Each of the wire clamp and vise are supported on a carriage which is movable relative to a frame. This enables the vise to grip and pull the ductile pipe. Additionally, a wire strand may be disposed through the pipe from a far end to the end at which the machine is placed. The wire clamp allows the machine to pre-stress the strand to improve the extraction of the ductile pipe.
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Patent Agency Ranking
公开(公告)号：US20240142036A1
公开(公告)日：2024-05-02
申请号：US18406355
申请日：2024-01-08
Applicant: The Charles Machine Works, Inc.
Inventor： Craig Lawrence Noggle , Robert F. Crane , Mark D. Randa , Steven W. Wentworth
CPC classification number: F16L55/18 , E05C3/04 , E05C9/08 , E05C19/002 , Y10T292/0866 , Y10T292/0892 , Y10T292/11
Abstract: A hinged cover overlays an opening that provides access to a pressurized inversion drum. A releasable latch assembly holds the cover in a closed and locked position. The latch assembly comprises a plurality of first knuckles formed in the cover that are interlaceable with a plurality of second knuckles formed in the body adjacent the opening. The latch assembly further comprises a rotatable latch pin that may be installed within the first and second knuckles. The latch assembly is moved from an unlocked to a locked position by rotation of the latch pin within the knuckles.
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公开(公告)号：US11913570B1
公开(公告)日：2024-02-27
申请号：US17335297
申请日：2021-06-01
Applicant: The Charles Machine Works, Inc.
Inventor： Steven W. Wentworth , Mark D. Randa , Robert F. Crane
Abstract: A system for breaking the skin friction between an underground pipe section and the surrounding soil. The system uses a pipe twisting device attached to one end of the pipe section. The pipe twisting device applies a torsional force to the pipe section so as to torsionally deform the pipe section. Such deformation breaks the skin friction between the pipe section and the surrounding soil. After the skin friction is broken along the entire length of the pipe section, an apparatus configured to apply an axial force to the pipe section pulls the pipe section out of the soil.
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公开(公告)号：US11674354B2
公开(公告)日：2023-06-13
申请号：US17517901
申请日：2021-11-03
Applicant: The Charles Machine Works, Inc.
Inventor： Larry G. Morse , Mark D. Randa
Abstract: A system and for providing a bore sight in a piercing tool. A transmitter emits a magnetic field. The flux lines which emanate along the transmitter axis are substantially straight. A receiver at a remote, target location can detect these flux lines. The receiver and transmitter are oriented such that the substantially straight flux line are along an intended bore path. Then, a piercing tool or other boring tool is oriented along the same path and a bore is created.
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公开(公告)号：US11619336B2
公开(公告)日：2023-04-04
申请号：US17022513
申请日：2020-09-16
Applicant: The Charles Machine Works, Inc.
Inventor： Mark D. Randa , Robert F. Crane , Steven W. Wentworth , Kelvin C Aus
Abstract: A wire pulling assembly for pulling a wire carrying tooling through an underground environment. The pulling assembly includes a cyclical vise carried by one or more hydraulic cylinders attached to a frame. The cylinders have a pulling stroke and a retraction stroke. A powered reel is used to store the wire as it is removed from the ground. During a pulling stroke, the reel is hydraulically isolated such that cable is stripped from the reel with tension maintained in the cable. During a retraction stroke, a motor turns the reel to load excess cable onto the reel.
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公开(公告)号：US20210107074A1
公开(公告)日：2021-04-15
申请号：US17022513
申请日：2020-09-16
Applicant: The Charles Machine Works, Inc.
Inventor： Mark D. Randa , Robert F. Crane , Steven W. Wentworth , Kelvin C Aus
Abstract: A wire pulling assembly for pulling a wire carrying tooling through an underground environment. The pulling assembly includes a cyclical vise carried by one or more hydraulic cylinders attached to a frame. The cylinders have a pulling stroke and a retraction stroke. A powered reel is used to store the wire as it is removed from the ground. During a pulling stroke, the reel is hydraulically isolated such that cable is stripped from the reel with tension maintained in the cable. During a retraction stroke, a motor turns the reel to load excess cable onto the reel.
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