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公开(公告)号：US20240247553A1
公开(公告)日：2024-07-25
申请号：US18398382
申请日：2023-12-28
发明人： Frank GÖCKE , Tobias KLEIN , Dieter WURM
IPC分类号： E21B17/042
CPC分类号： E21B17/042
摘要： The invention relates to a threaded bushing on an elongated body for a threaded connection with a threaded plug, wherein the threaded bushing has a conical internal thread, in which adjacent flanks of the internal thread are designed as sections of two identical ellipses offset from one another.
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公开(公告)号：US11834921B2
公开(公告)日：2023-12-05
申请号：US17582517
申请日：2022-01-24
发明人： Manfred Schauerte
摘要： Arrangement of a ground drilling device for the pushing or pulling introduction of a drill string into the ground, wherein the arrangement has a frame and a carriage which can be moved back and forth relative to the frame with a translatory movement, wherein at least one rolling element is provided, which is configured to roll during the translatory movement of the carriage, and a conversion device is provided, which is connected to the rolling element and is configured to convert the rotary movement of the rolling element into a rotary movement of the drill string.
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公开(公告)号：US11767716B2
公开(公告)日：2023-09-26
申请号：US17404072
申请日：2021-08-17
发明人： Franz-Josef Püttmann
CPC分类号： E21B10/40
摘要： A drilling head for a percussive displacement ground drilling device with a first drilling head section and a second drilling head section, the first drilling head section having discharge ducts, and the second drilling head section having a cross section that increases in the longitudinal direction, wherein the second drilling head section includes a plurality of step-shaped areas.
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公开(公告)号：US11692403B2
公开(公告)日：2023-07-04
申请号：US17467172
申请日：2021-09-03
IPC分类号： E21B17/046 , E21B1/00 , E21B7/04
CPC分类号： E21B17/046 , E21B1/00 , E21B7/046
摘要： A rod section of a ground drilling rod configured at its end to form at least one plug connection and having at one end (a) a connecting plug with an outer contour; or (b) a connecting socket with an inner contour, the outer contour or the inner contour being essentially sinusoidal in cross section.
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公开(公告)号：US11359443B2
公开(公告)日：2022-06-14
申请号：US16784873
申请日：2020-02-07
发明人： Volker Boike , Stefan Hermes , Dieter Wurm
IPC分类号： E21B19/084 , E21B17/00 , E21B7/04
摘要： A ground drilling device for cable-guided drilling comprising a drive for connecting and/or moving rod sections of a drill string along a drill string axis, wherein a cable reserve for receiving a cable with a length of at least two rod sections is provided and a contact device for electrical contacting of one end of the cable of the cable reserve is provided.
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公开(公告)号：US11346155B2
公开(公告)日：2022-05-31
申请号：US16932195
申请日：2020-07-17
发明人： Meinolf Rameil
摘要： A self-propelled drilling head for drilling in soil by means of a multi-stage method comprises the drilling head having a housing and a drilling head tip arranged in the housing, and a spacer provided on the drilling head tip, by means of which the drilling head tip is in contact with the housing in order to change the multi-stage method to a method with a reduced number of stages.
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公开(公告)号：US11268324B2
公开(公告)日：2022-03-08
申请号：US16624515
申请日：2018-06-20
发明人： Franz-Josef Puttmann
摘要： A ground drilling device with a percussion piston for drilling into the soil, comprising at least one housing section for the percussion piston, wherein an insert is arranged in the housing between the drilling head tip and the percussion piston such that the insert transmits at least a portion of the energy of the percussion piston to the housing, and the insert is held in the housing by means of a shrinking adhesion connection.
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公开(公告)号：US11203905B2
公开(公告)日：2021-12-21
申请号：US16662289
申请日：2019-10-24
发明人： Wolfgang Schmidt
摘要： A drill string section of a drill string for drilling in the ground having arranged on the outside of the drill string section at least one marking by means of which abrasion can be recognized.
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公开(公告)号：US11092001B2
公开(公告)日：2021-08-17
申请号：US16467331
申请日：2017-12-21
发明人： Sebastian Fischer
IPC分类号： E21B47/092 , E21B47/0232 , E21B7/04
摘要： The invention relates to a device for locating a drill head of a ground drilling device, comprising a wireless probe, the probe being arranged on or in a flying object.
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公开(公告)号：US10662726B2
公开(公告)日：2020-05-26
申请号：US16011027
申请日：2018-06-18
发明人： Elmar Koch , Martin Köper
摘要： A mixing system for producing a drilling fluid for ground drilling includes a feed for a powdered medium and a mixing chamber with a feed for a fluid medium. A space is provided between the feed for the powdered medium and the mixing chamber, having sliding elements therein, which sliding elements can seal off the space at one end.
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