Swellable elastomeric compositions including an elastomer, a covalent crosslinking system and an ionic crosslinking system, where the composition have improved rate of swelling in water, brines and aqueous solutions, swellability, and/or physical properties of the compositions.

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.

A wireless data telemetry system for use in a drilling system can include a drill head wireless transmitter and at least one data link transceiver. The drill head wireless transmitter can be in a drill head of the drilling system, the drill head wireless transmitter configured to generate and transmit one or more data signals associated with a drilling process. The at least one data link transceiver can be wirelessly coupled to at least one of the drill head wireless transmitter or another data link transceiver, with the drill head wireless transmitter and the at least one data link transceiver configured to be physically coupled within a drill string and spaced apart from one another. The drill head wireless transmitter and the at least one data link transceiver together configured to wirelessly communicate the one or more data signals beyond a transmission range of the drill head wireless transmitter.

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.

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.

A soft robot includes a main body configured as a tube inverted back inside itself to define a pressure channel, such that when the channel is pressurized, the main body everts, and inverted material everts and passes out of a tip at a distal end of the main body. A fluidization tube for passing air or other fluid through a core of the main body in the fluidization tube, wherein the fluidization tube engages the main body such that the fluidization tube is ejected as the distal end as the main body everts and joins part of the side of the main body as the main body everts and extends its distal tip.

A soft robot includes a main body configured as a tube inverted back inside itself to define a pressure channel, such that when the channel is pressurized, the main body everts, and inverted material everts and passes out of a tip at a distal end of the main body. A fluidization tube for passing air or other fluid through a core of the main body in the fluidization tube, wherein the fluidization tube engages the main body such that the fluidization tube is ejected as the distal end as the main body everts and joins part of the side of the main body as the main body everts and extends its distal tip.

A sensor assembly supported on a horizontal directional drilling machine adjacent a magazine. The magazine includes a plurality of vertical columns configured to store a plurality of pipe sections. The sensor assembly comprises an elongate tower that suspends a rigid support structure above the plurality of columns. The rigid support structure includes a sensor housing that carries a plurality of proximity sensors. The proximity sensors correspond with the columns in one-to-one relationship. The proximity sensors measure values indicative of the number of pipe sections contained within each column and transmit the measured values to a processor included in the drilling machine.

A sensor assembly supported on a horizontal directional drilling machine adjacent a magazine. The magazine includes a plurality of vertical columns configured to store a plurality of pipe sections. The sensor assembly comprises an elongate tower that suspends a rigid support structure above the plurality of columns. The rigid support structure includes a sensor housing that carries a plurality of proximity sensors. The proximity sensors correspond with the columns in one-to-one relationship. The proximity sensors measure values indicative of the number of pipe sections contained within each column and transmit the measured values to a processor included in the drilling machine.

The present invention relates to a rotating self-drilling device for extraterrestrial objects. One end of a pressure sensor installing barrel is connected with a rear cover; a reed fixing lower cover is installed on the rear cover; one end of a wire outlet post is connected with the reed fixing lower cover, and the other end is provided with a reed fixing upper cover; a plurality of reeds are arranged between the reed fixing upper cover and the reed fixing lower cover; both ends of each of the reeds are respectively connected with the reed fixing upper cover and the reed fixing lower cover; the other end of the pressure sensor installing barrel is connected with one end of a motor installing barrel; the other end of the motor installing barrel is connected with a motor installing barrel front cover; a motor and decelerator is placed in the motor installing barrel; both ends of a transmission shaft are respectively connected with the output end of the motor and decelerator and a ferrule; both ends of a milling head are respectively connected with the ferrule and a drill bit; a propelling spiral tube is sleeved outside the motor installing barrel; both ends are respectively connected with the ferrule and a bearing fixing cover; the bearing fixing cover is rotatably connected with the motor installing barrel; The overall structure of the present invention is light and compact. A drive system has only one motor to realize large penetration depth.