34results about How to "Prevent change of direction" patented technology

A surgical apparatus includes an actuation unit disposed on a handle and a control unit providing at least three modes for controlling the electrical instrument. The actuation unit contains a switching rocker with an operating element, which is rotatable about a rocker axis that can be shifted perpendicular to the surface of the handle, so that starting from an initial position a first or second function position can be reached by forwards or backwards rotation about the rocker axis, and a third function position can be reached by pressing the operating element inward, two sensors being disposed on the operating element, one on the left and the other on the right side of the rocker axis, in such a way that by means of the sensors the function position selected by means of the switching rocker can be determined by the control unit.

A thread forming fastener for threading into a nut anchor of a pliable material wherein there is produced during the driving of the fastener a combination of forces that encourages the nut anchor material to flow smoothly and to develop a mating thread in the nut anchor that minimizes stress cracking and radial hoop stress as the mating thread is being formed. The fastener comprises a drive head and a shank extending from the head and having a longitudinal axis, the shank including a core and a thread having a selected axial pitch, a selected thread height and a profile which in axial cross-section includes a leading face, a trailing face and a tip. The leading face is composed of a radially inner concave portion having a first radius and which transitions smoothly to a radially outer convex portion having a second radius, the transition occurring at a point on the common tangent to those portions. The trailing face is composed of a radially inner linear portion which transitions at a selected transition location to a radially outer convex portion having a third radius. The profile also includes a convex blending portion having a fourth radius which blends together the radially outer leading and trailing face portions at the tip. The thread profile produces force vectors during assembly with the nut anchor that provide enhanced mating thread strength and improved resistance to nut anchor thread breakdown.

The invention relates to a Fresnel prism and a method for converting a polarization state of a terahertz wave. The Fresnel prism is in a bar-type columnar shape and is made of a material which can not generate a dispersion effect on the terahertz wave. The Fresnel prism comprises four arris and two side surfaces which are opposite and parallel to each other. The two side surfaces are squares with same side lengths. Each arris is perpendicular to one edge of the each side surface. An included angle alpha of the each arris and the each side surface satisfies a formula (1), wherein n is a refractive index of the making material of the Fresnel prism to the terahertz wave. A length of the each arris satisfies that the terahertz wave of incident linear polarization which is perpendicular to one side surface can emit from another side surface after generating even numbers of total reflections in the Fresnel prism. According to the invention, the polarization states of the multi-color linear polarization terahertz waves can be converted into circular polarization simultaneously.

A shock caused due to a change in the direction of torque transferred to an output shaft is reduced. There is provided a control device for a powertrain including a drive power source that transfers torque to an output shaft connected to a wheel of a vehicle, and a rotary electric machine that transfers torque to the output shaft via a transmission. When electric power generation performed using the rotary electric machine is restricted, if torque that decelerates the vehicle is transferred from the drive power source to the output shaft, a control is executed so that torque that does not decelerate the vehicle is transferred from the drive power source to the output shaft, and a shift control over the transmission is executed.

The invention relates to a laying device for a rubber hose. The device comprises the rubber hose, a rolling device, a corrector, a laying power device and a hose laying rack. The roller device is provided with a first motor; the corrector comprises a support mounted on a ship and a pulley installed on the support; the laying power device comprises a fixing table mounted on the ship and a base mounting on the fixing table, and the base is provided with a fixed rack, a movable rack, a gear and a rail; one end of the hose laying rack is installed on the ship, and the other end of the hose layingrack inclines downwards and is suspended on the water surface; and one end of the rubber hose winds the roller device, and the other end of the rubber hose bypasses the pulley of the corrector, penetrates through the position between two laying rollers of the laying power device, penetrates through the hose laying rack and enters water. According to the laying device for the rubber hose, by usinga method for laying the rollers for friction transmission of hose laying, the comprehensive conditions that the transmission performance is high, the efficiency is high, and the hose and an opening can be conveyed in the accurate direction are achieved.

A method for recovering the tobacco shreds from the rejected and defective cigarettes by air separation features that the compressed air is pulsively sprayed onto the rejected and defective cigarettes to separate the tobacco shreds from paper and tip filters. Its apparatus is composed of feeding unit, shaper, conveyer, pulse spray separator, shreds recovering unit, papper and tip filter recovering unit, and electric controller.

The present invention relates to an explosion-proof security tire for vehicles. The tire includes an outer tire, a split rim, a L-shaped sealing ring, a combined support loop and a valve core. The combined support loop includes a plurality layers of support rings they are sleeved by layer on layer and fixed with the rim. The size of the tire can increased by the combined support loop so as to furthest shorten the distance between the inner wall of the outer tire and the outer wall of the combined support loop at a normal pressure of tire. At the moment that the tire is burst, the combined support loop can support the outer tire quickly and effectively, and control the change of acting radius of the tire in a minimum range so as to ensure the basic performance of the tire and to prevent accidents caused by sudden control loss of running direction and avoid potential security risks. Moreover, the split rim is benefit for mounting the combined support loop by layering, and is easy to be assembled and disassembled so that the tire can be maintained and replaced by normal tools.

The invention discloses a linear air pressure balance type ultrasonic atomization device. The linear air pressure balance type ultrasonic atomization device comprises a workpiece conveying channel which is overall linear in the plane projection direction. The workpiece conveying channel is formed by sequentially connecting a low-position workpiece inlet area channel section, an atomization coating front uphill area channel section, an atomization coating front high-position area channel section, an atomization coating front downhill area channel section, a low-position atomization coating area channel section, an atomization coating rear uphill area channel section, an atomization coating rear high-position area channel section, an atomization coating rear downhill area channel section and a low-position workpiece discharging area channel section. High-position air flow circulation channels are connected to the outer portion of the atomization coating front high-position area channel section and the outer portion of the atomization coating rear high-position area channel section. An inlet air curtain machine is arranged at an inlet of the upper end of the atomization coating front downhill area channel section, and an outlet air curtain machine is arranged at an outlet of the upper end of the atomization coating rear uphill area channel section. A waste gas treatment device is connected between a waste gas exhaust connecting opening of the atomization coating front downhill area channel section and a clean air input connecting opening of the atomization coating front high-position area channel section, and a waste gas treatment device is connected between a waste gas exhaust connecting opening of the atomization coating rear uphill area channel section and a clean air input connecting opening of the atomization coating rear high-position area channel section. By means of the device, front and rear equipment connecting on a coating technological line is facilitated.