69 results about "Rev limiter" patented technology

A cosmetic applicator includes a handle, a drive coupled to the handle, an applicator head coupled to the drive, and a torque limiter. The torque limiter includes a magnetic coupling, the magnetic coupling being coupled to at least one of the drive and the applicator head such that the torque applied via the applicator head does not exceed a predetermined allowable torque.

A mobile service rig for wells includes a hoist powered by an internal combustion engine. In response to the hoist exerting a predetermined lifting force, the lifting force is limited by automatically limiting or reducing the speed of the engine.

Disclosed is an apparatus for a barrier gate designed to control vehicular travel through a passageway. The invention disclosed employs a barrier arm, a housing, a motor and transmission, a rotary encoder, and a torque limiter assembly. The torque limiter assembly comprises a hub, spindle, brake disk, rotor, and a gland nut. The torque limiter assembly is mounted to the motor and transmission as well as connected to the barrier arm. The torque limiter assembly provides sufficient friction to rotate the barrier arm and also protects the internal gears and linkages of the transmission and motor from costly repair/replacement by preventing any unwanted rotation. In the event an outside force rotates the barrier arm, the rotary encoder in cooperation with a controller instantly recognizes the position of the barrier arm and further acts as a limit switch to send a signal to the motor to stop when the barrier arm is in place.

A wind power generator includes: an input rotor provided so as to be rotatable together with an output shaft of a speed increaser; an output rotor provided so as to be rotatable together with a drive shaft of a generator; and a one-way clutch arranged between the input and output rotors. The one-way clutch connects the input rotor to the output rotor such that the input rotor and the output rotor are rotatable together with each other when a rotation speed of the input rotor exceeds a rotation speed of the output rotor, and that disconnects the input rotor from the output rotor when the rotation speed of the input rotor falls below the rotation speed of the output rotor. The one-way clutch has a rotation speed limiter that disconnects the input rotor from the output rotor when the rotation speed of the output shaft exceeds a predetermined value.

A cosmetic applicator includes a handle, a drive coupled to the handle, an applicator head coupled to the drive, and a torque limiter. The torque limiter includes a fluidic or viscous coupling, the fluidic or viscous coupling being coupled to at least one of the drive and the applicator head such that the torque applied via the applicator head does not exceed a predetermined allowable torque.

The invention relates to a hand tool machine with a torque limiter (2) enabling a user to set a maximum torque which is transmitted by a motor drive (4) to a tool carrier (6). According to the invention, the hand tool machine comprises an overload clutch which interrupts a power flux between the motor drive (4) and the tool carrier (6) when the transmitted torque exceeds the overload torque.

An engine revolution limiter system is utilized to limit engine speed during a break-in period. The system provides for programming a variable break-in period and a variable selectable engine revolution limit. During the break-in period, if the revolution limit is exceeded by the engine speed, firing of the ignition is limited. In addition, the system provides for an over revolution limit wherein the ignition stops firing if the over revolution limit is exceeded. In addition, multiple break-in periods may be programmed with different associated revolution limits and over revolution limits. This provides for gradually increasing the allowable engine speed as the engine has been operating for greater periods of time.

Methods and devices for manipulating an articulating arm of an ultrasound therapy system are provided. In one embodiment an articulating arm comprises a first articulating arm link, a second articulating arm link, a rotating joint configured to rotationally connect the first articulating arm link to the second articulating arm link so that the first and second articulating arm links are substantially perpendicular, and an arm limiter attached to the second articulating arm link, the arm limiter being configured to limit rotation of the second articulating arm link along the rotating joint with respect to the first articulating arm link. An ultrasound therapy transducer and imaging system can be mounted on the articulating arm. Methods for performing manipulating the arm and system are also provided.

The invention provides a torque limiter, capable of preventing upsizing towards the radial direction and ensuring an enough intensity relative to so-called counter torque. A gap and a convex portion at locking side are mounted on an outer wheel body. The gap is blocked into a hook portion with coil springs, having a butt surface at opening side and a butt surface at locking side which are respectively butted with the hook portion when acting on the rotation torque facing to the opening side and the locking side. The convex portion at locking side includes an extension surface at locking side which extends towards inner side in the radial direction from the butt surface at locking side, and butts with the hook portion together with the butt surface at locking side when acting on the rotation torque facing to the locking side.

A cordless motor assisted torque wrench. In an example embodiment, the torque wrench includes an elongated housing adapted to enclose an elongated battery pack, a drive head pivotably connected to a first end of the elongated housing at a pivot connection, an electronic torque setting device operable to receive a desired torque setting from a user, a torque sensing device for sensing a level of torque applied by the wrench to a workpiece, a motor disposed within the head, and a torque limiter configured to limit the torque applied by the wrench to a workpiece based on the desired torque setting and the level of torque sensed by the torque sensing device. The elongated housing preferably includes a first segment and a second segment slidably coupled to form a telescopic elongated housing that is configurable into at least two lengths.

The invention provides a torque limiter. Each shear valve has a head having a generally T shape in a section taken along the radial direction of a shaft member and projected from a tubular member when the shear valve is fixed in a shear valve fitting hole. The shaft member has at least one generally T-shaped groove that has a shape corresponding to the shape of the head in the section and that accommodates the head during torque transmission.

An ignition control module for an internal combustion engine is incorporated directly into an existing ignition module package design and thereby preserves stock appearance, and is cooperative with stock magnetos, distributors and coils. The module incorporates both ignition pulse generation and adjustable rev limiting. A pushbutton switch allows manual selection of a preferred RPM to rev limit to, and the selection may be carried out under the hood while the engine is running. A plurality of light emitting diodes display the selected rev limit RPM by flashing a corresponding LED, and when not being used to select rev limit RPM, display the engine RPM in bar graph format. A digital flywheel is provided to reduce adverse affect of mechanical jitter in distributor mechanical parts, to improve timing of individual sparks. Dwell and timing curves are programmed into a microprocessor, and may be changed through external input.