93results about How to "Torque is limited" patented technology

A rotary drag bit and method for drilling subterranean formations, including a bit body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation, so as to control the depth-of-cut of the at least one cutter, so as to control the volume of formation material cut per bit rotation, as well as to control the amount of torque experienced by the bit and an optionally associated bottomhole assembly regardless of the effective weight-on-bit are all disclosed. The exterior of the bit preferably includes a plurality of blade structures carrying at least one such cutter thereon and including a sufficient amount of bearing surface area to contact the formation so as to generally distribute an additional weight applied to the bit against the bottom of the borehole without exceeding the compressive strength of the formation rock.

In a neutral range preset, there are set a zone for stopping and holding a rotating body only by a mechanical brake, a zone for holding the body only by performing position holding control, and a zone for simultaneously exerting both effects, i.e., the effect of the mechanical brake and the effect of the holding control. On-the-spot holding torque generated when the position holding control is performed is stored. The higher of the on-the-spot holding torque stored and accelerating torque according to an operation amount of the body at a rotation starting time is set as electric motor torque for acceleration. When performing a pressing work including pressing a bucket against an object for work, torque control is carried out according to the operation amount.

A method of controlling the ratio of a continuously variable transmission (CVT) that is controlled by a CVT controller is provided. The method includes determining the torque produced by an engine, calculating an acceleration limit value based upon the torque value and the engine inertia value and a calibrated acceleration limiting ratio. The acceleration limit value is compared to the desired engine speed value to determine a command engine speed value. The CVT ratio is then calculated by dividing the command engine speed value by a measured vehicle speed value. The calculated CVT ratio is compared to a measured CVT ratio and a control signal is sent to an actuator of a CVT. Torque provided to the engine to overcome the engine inertia is limited by the method so that the step change in torque provided to the vehicle wheels, as the engine approaches the command engine speed value, is reduced.

Provided is a spliced-on connector system which includes a connector body, an incoming fiber which is spliced to the connector body, a splice sleeve which covers a splice point at which the incoming fiber is spliced to the connector body, and an extender tube which covers the splice sleeve. Also provided is a method of producing the spliced-on connector system; a holder including a depression which holds a connector body in a position in which the connector body is spliced to an incoming fiber, the holder being disposed inside a splicer which splices the connector body to the incoming fiber; and a splicer including a tube heater which heat-shrinks a splice sleeve over a splice point at which a connector body is spliced to an incoming fiber, the tube heater accommodating the connector holder which holds the connector body.

The disclosed fixture mount limits torque that may be applied when installing a dental implant and also serves as an impression post and an abutment for a temporary prosthesis. In preferred embodiments, the fixture mount is formed of plastic and is subject to chair side modifications by the surgeon so as to be better suited as an abutment. Methods of shaping the fixture mount for use as an abutment and for making a dental restoration using the shaped abutment are disclosed.

The invention relates to a device for feeding ball-like ammunition, so-called paint balls, into the projectile chamber of a sporting arm. The magazine is arranged separately from the arm and is connected to same by means of a feeder tube. A motor-driven feeder feeds the balls from the ball container into the feeder tube. In so doing, a spring element stores the traction from the motor, so that, even when the motor stops, balls can still be transported using the energy stored in the spring element. The traction from the motor is transmitted via a connection or clutch consisting of a spring element and a transmission element. Protrusions are arranged on both the spring element and the transmission element, which come to bear on each other for transmitting traction. The protrusions are at least partially flexible, so that the transmitted force is limited. This way, explosion of the balls from excessive pressure is prevented. In addition, the feeder is connected with the drive element for the feeder, which is under pressure from the spring, by means of a bayonet-like connection. This way, the feeder can be removed from the ball container with one manipulation to facilitate the cleaning of the ball container in the event a ball explodes in spite of this.

The invention relates to a waste water immersion probe (10) comprising a liquid-tight housing (11), a sensor (18) which is disposed in the housing (11) and a sensor window (20) formed on the housing (11). A wiper element (22) for cleaning the sensor window (20) is arranged on the outside of the sensor window (20), and the wiper element (22) is driven by a drive motor (24) which is arranged essentially in the housing (11). The housing is devoid of openings. A magnetic element (36, 37) is associated with the drive motor (24) and a magnetic element (34, 35) is associated with the wiper element (22) in such a manner that the magnetic drive motor element (36, 37) produces a magnetic field which transverses the housing wall and transmits a drive torque to the wiper element (22) without a shaft.

A lifting device such as a mobile crane having a main body and a boom, such as a lattice boom, for supporting a pile lead for, e.g., pile driving or continuous flight auger drilling, and a method of using same. A hydraulically operated mechanical spotter arm may be attached between the device body and the pile lead. Electronic position sensors on the spotter arm may be used to measure angular relationships between the pile lead and the spotter arm. Position sensors on a boom box on the boom may also be used. When the pile lead is swung, information from the sensors may be used by an electronic control system to automatically maintain the pile lead in a desirable position, limiting torque induced in the boom. The boom box position sensors may be used to counter-steer the spotter arm to further limit torque. The boom box may also be fitted with rubber springs to permit controlled pile lead deflection while limiting load transmitted to the boom. Other aspects of the invention will become apparent from the disclosure.

A device for delivering a predetermined amount of torque to a tool. The device has a handle and a cam assembly located within the handle. The cam assembly has a cam member integrally formed with a drive shaft. An adjustment ring is capable of rotating the cam assembly to different positions related to different levels of torque. A plunger will be biased against an exterior surface of the cam member to provide the different levels of torque delivery.

The invention concerns a freewheel bearing device including an outer element and inner element arranged inside the outer element, and a free wheel provided with at least a wedging element, arranged between the inner element and the outer element to allow a free rotational movement in one direction between the outer element and the inner element and for transmission of a torque in the other direction between the outer element and the inner element, the free wheel including a ring provided with a cylindrical inner surface and a cylindrical outer surface, substantially aligned on a radial plane perpendicular to the axis of rotation of the device, and a torque limiting member adapted to limit the torque transmitted by the free wheel, the torque limiting member being arranged radially between said ring and the outer element or the inner element in contact with said ring and said element.

The main body (2) of a self-drilling screw has a driven head (9) having at its top central region a weld lug (10) of a prescribed size. The screw also has a discrete drive head (3) having in its top a hole (11) for engagement with a driving tool. A thinned stud (12) continuing from the drive head (3) is resistance welded to the top center of driven head (9), using the weld lug (10) to form between these heads a torque-limiting junction (13) ready to break at a prescribed torque. As the main body (2) of the screw for use with thin steel sheets is tightened, the drive head (3) will be removed due to breakage of the junction (13). Any excessive tightening torque imparted to the screw will not break a female-threaded hole formed in the steel sheet, but firmly retaining the screw on it.

A method for validating a vehicle-to-X message, in which the message is received by an antenna arrangement having a least two antenna elements connected with a communication device. An electromagnetic field strength of the message is recorded based on different reception characteristics with different power densities, wherein the message includes an absolute position of a transmitter, and an absolute position of a receiver determined on the basis of global satellite navigation or on a map comparison. A first relative position of the transmitter is calculated from the absolute positions of the receiver and the transmitter. A second relative position is calculated from the ratio of the power densities or read out from a reference diagram. If a comparison of the first and second relative positions reveals a large degree of correspondence, the message is validated, and if a large degree of deviation is detected, the message is rejected.

In a method for operating a drive train for a motor vehicle, a torque is produced by means of an internal combustion engine as a function of an available torque set value signal and transmitted to drive wheels by means of a clutch. With the help of an electric motor, a closing force is applied, with which the clutch is held in a closed position against a restoring force. The electric motor is energized in such a way that a high current is used in the case of a high torque and a lower current is used in the case of a lower torque. The thermal load of the electric motor is determined and a load signal corresponding to the thermal load is produced. The load signal is compared with a load limit signal assigned to a permissible load range. If the load signal deviates from the load-limit signal, the torque of the internal combustion engine is limited.

The invention relates to a device for feeding ball-like ammunition, so-called paint balls, into the projectile chamber of a sporting arm. The magazine is arranged separately from the arm and is connected to same by means of a feeder tube. A motor-driven feeder feeds the balls from the ball container into the feeder tube. In so doing, a spring element stores the traction from the motor, so that, even when the motor stops, balls can still be transported using the energy stored in the spring element. The traction from the motor is transmitted via a connection or clutch consisting of a spring element and a transmission element. Protrusions are arranged on both the spring element and the transmission element, which come to bear on each other for transmitting traction. The protrusions are at least partially flexible, so that the transmitted force is limited. This way, explosion of the balls from excessive pressure is prevented. In addition, the feeder is connected with the drive element for the feeder, which is under pressure from the spring, by means of a bayonet-like connection. This way, the feeder can be removed from the ball container with one manipulation to facilitate the cleaning of the ball container in the event a ball explodes in spite of this.

The present invention relates to a decoupler with free wheel system and comprising a vibration damping pulley, a shaft actionable by the pulley, hub pieces having a first hub piece and a second hub piece, hub pieces being mounted between the inner race of the pulley and the outer surface of the shaft, at least one journal element between the shaft and pulley, along with a torsion spring, and a clutch spring, with the first hub piece being mounted on the shaft and the second hub piece being mounted around the shaft and can rotate relative to it, the torsion spring being disposed between the outer race of the hub pieces and the inner race of pulley, having a first end operatively attachable to the pulley and a second end operatively attachable to the second hub piece and the clutch spring being disposed internally in relation to the torsion spring and which is frictionally engaged with the hub pieces for transmission of torque to the shaft.

An apparatus for binding together two biological tissue portions with a binding component. The apparatus includes a body defining a body handle for receiving a hand; at least one drum rotatably mounted to the body, the at least one drum including a binding component attachment for attaching the binding component thereto; a drum actuating lever mounted to the body, the drum actuating lever being operatively coupled to the at least one drum for rotating the at least one drum in a predetermined direction when the drum actuating lever is moved; and a crimping assembly operatively coupled to the body for holding a crimp component and selectively crimping the crimp component to the binding component. The body handle, the drum actuating lever and the crimping assembly are configured, sized and positioned in a manner such that the intended user is able to tighten the binding component around the at least one drum by moving the drum actuating lever using one hand; and the intended user is able to operate the crimping assembly to selectively crimp the crimp component to the binding component middle section using another hand while simultaneously holding the body handle with the first hand.

A method for controlling the rotational speed of at least one rotating element in a vehicle's drive line is provided. A first control model and a second control model are defined. The first control model calculates a permitted slippage of at least one of the vehicle's ground-engaging elements at its point of contact with the ground, which ground-engaging element is driven via the rotating element. The second control model calculates a torque delivered to the said ground-engaging element. The result of one of the said control models is utilized for controlling the rotational speed of the rotating element.

A composite drain plug for an automobile engine. The drain plug is made up of a hollow metal sleeve that is flanged at one end and closed at the other end. There is a core portion filling the hollow sleeve and having a head portion and a stub flange adjacent the flanged end of the sleeve. A circumferential sealing bead is bonded to the stub flange. The core portion is a glass-filled polymer and the sealing bead is made from a material which includes a cross-linked elastomer dispersed in a thermoplastic carrier.