105results about How to "Constant height" patented technology

Omni-directional vehicles and wheels therefore including methods of constructing same. In alternative embodiments, omni-direction wheel modules for imparting omni-directional locomotional capabilities to vehicles and objects. In further alternative embodiments, apparatus and methods for transporting and loading and off-loading munitions utilizing specialized, omni-directional capable vehicles for improved efficiency and/or safety.

To securely position a needle tip and a blade face of a needle tube inserted into the skin in a predetermined site of a living body, such as the upper layer of skin, an injection needle assembly includes a needle tube having a needle tip capable of puncturing a living body, a hub holding the needle tube, a stabilizer, and a guide portion. The stabilizer is formed in a tubular shape surrounding the circumference of the needle tube, and an end face is pressed against the skin, and thereby a raised portion of the skin is formed in a tube hole. The guide portion is arranged on the stabilizer, and is adapted to recognize a press-in distance y of the stabilizer to the skin.

After introducing a solder ball from a hopper into a receiving hole of a ball separator, the ball separator is slid between blocks, and the solder ball is sent out to a portion outside of the blocks. By suctioning the solder ball from within a projected region on a lower block which is situated inside of the receiving hole at a time when the solder ball is taken into the receiving hole and surrounds a rolling trajectory of the solder ball that has been taken into the receiving hole, the solder ball is forcibly introduced into the receiving hole.

Omni-directional vehicles and wheels therefore including methods of constructing same. In alternative embodiments, omni-direction wheel modules for imparting omni-directional locomotional capabilities to vehicles and objects. In further alternative embodiments, apparatus and methods for transporting and loading and off-loading munitions utilizing specialized, omni-directional capable vehicles for improved efficiency and/or safety.

This invention provides a new through weld method to carry out welding of a base metal made of aluminum or that of aluminum alloy using high energy beams wherein a shield gas ambience (an inert gas ambience) to cover a welding site in a submerged-scar is formed, even a shield gas ambience (an inert gas ambience) to cover a welding site irradiated by the high energy beams. Since the former shield gas ambience to cover the submerged-scar pushes the keyhole against the gravity and/or the gas pressure force of the latter shield gas supplied to the laser irradiation side, then the forming of hang down of beads and the resultant projection of the welding base metal are prevented.

A printed wiring board has a circuit substrate 6 having a conductor circuit 5 and a through hole 60, and also has a joining pin 1 inserted into the through hole. The joining pin is manufactured by using a material unmelted at a heating temperature in joining the joining pin to an opposite party pad 81. The joining pin is constructed by a joining head portion 11 having a greater diameter than an opening diameter of the through hole. The joining pin forms a joining portion for joining and connection to the opposite party pad. The joining pin has a leg portion 12 having a diameter smaller than the through hole. The leg portion is inserted into the through hole and is joined to the through hole by a conductive material such as a soldering material 20, etc. In lieu of a joining pin, a joining ball approximately having a spherical shape can be joined to the through hole by the conductive material.

The present application discloses a plurality of spinal implants and methods for repairing annular defects in intervertebral discs and for providing dynamic stability to the motion segment of the spine in the vicinity of the repaired disc. Each of the implants comprises a head portion and a tail portion. In the illustrated embodiments, the head portion of each implant is enlarged relative to the tail portion. Each of the head portions and tail portions is adapted to support adjacent vertebrae and resist collapse of the intervertebral disc. A tapered portion of each implant engages end plates of the adjacent vertebrae to resist forces tending to push the implant out of the intervertebral space. The tail portion of each implant includes a tail flange (which in some embodiments is of similar diameter to the head portion) that abuts extradiscal lips of the adjacent vertebrae and resists forces tending to push the implant deeper into the intervertebral space.

The presently disclosed embodiments relate to vertical takeoff and landing (VTOL) aircraft that have the capability of hovering in both a “nose forward” and a “nose up” orientation, and any orientation between those two. The disclosed aircraft can also transition into wing born (non-hovering) flight from any of the hovering orientations. In addition, certain of the disclosed embodiments can, if desired, use only vectored thrust control to maintain stable flight in both hover and forward flight. No control surfaces (e.g. ailerons, elevators, rudders, flaps) are required to maintain a stable vehicle attitude. However, the disclosure contemplates aircraft both with and without such control surfaces.

A railway vehicle drive unit (12) is a drive unit to rotatably drive a wheel (11) of a railway vehicle. More specifically, it includes a reducer housing (13) held on an inner diameter surface of the wheel (11), and integrally rotating with the wheel (11), an input side rotation member (14) connected to a drive source, a reducing mechanism (15) to reduce rotation speed of the input side rotation member (14) and transmit it to the reducer housing (13), a fixed member (23) arranged in the reducer housing (13) and connected and fixed to a vehicle body, axle bearings (24) and (25) to rotatably support the reducer housing 13 with respect to the fixed member (23), and lubricant oil circulating mechanisms (32) and (33) to circulate a lubricant oil between the reducing mechanism and the axle bearings (24) and (25).

The invention relates to a compensation device of a spring with constant tension, which essentially comprises a grooved pulley, a compensation rope, a left end plate, a main shaft, an oil seal, a bearing, a right end plate, a contact plane volute spring, an external cover, a fixed angle iron, an installation bottom plate, a hinge pin and a broken wire stopping device; wherein, the grooved pulley is fixed on the main shaft; the compensation rope is coiled and has an end fixed on the grooved pulley and the other end connected with an external contact net; the main shaft is supported on the left end plate and the right end plates by the oil seal and the bearing; the left end plate and the right end plate, the external cover, the fixed angle iron and the installation bottom plate form an enclosed box base; the hinge pin is connected to one side on the installation bottom plate far from the box base which is internally provided with the contact plane volute spring with an inner end bent hook connected with the main shaft and an outer end bent hook connected with the fixed angle iron on the box base. The compensation device of the spring with constant tension provided by the invention is compact in structure, small in size and light in weight. The invention can cause an electrified railway network to keep certain tension and reduce the loss catenary rate of the pantagraphs.

An adhesive layer is interposed between a head slider and a support member for fixing the head slider to the support member. A deformation body is interposed between the head slider and the support member. The deformation body has a coefficient of thermal expansion larger than that of the adhesive layer. The deformation body expands in response to rise in temperature. An internal force is induced in the head slider so as to distance the head slider away from the support member. Since the adhesive layer serves to fix the head slider to the support member, the internal force is transformed into stress in the head slider. The thermal expansion induces stress in the head slider in response to the rise in temperature. The stresses are balanced with each other, so that the head slider is prevented from deformation.

To provide a wheel support bearing assembly, which is effective to avoid an inner race detachment during assemblage onto an automotive vehicle. The assembly is provided with an inner member made up of a hub axle and an inner race mounted on an outer periphery of an inboard end portion of the hub axle. The inner race has an inner periphery provided with an stepped area that extends to an inboard annular face of the inner race and has a depth measured at an inner peripheral edge of an inboard annular face, and an inner surface of this stepped area is of a shape made up of a straight area and an inclined surface continued from an outboard end of the straight area to the inner peripheral surface, and a plastically deformed portion engageable with the inclined surface as a result of crimping is provided in the hub axle.

The invention discloses a controllable constrained laser micro shot peening intensification device and a method thereof. The device comprises a circulating water system. A deionized water curtain is adopted as a constrained layer and is provided through the circulating water system; a high-speed camera is used for observing the growth and gathering situation of bubbles in a laser micro shot peening intensification process on line; a motor is used for driving a hydraulic pump to enable deionized water to circularly flow in the whole circulation water system; the pressure and the flow rate of the deionized water in the circulating water system are controlled to take away bubbles generated near a focal point in the laser micro shot peening intensification process so as to improve laser micro shot peening efficiency. The deionized water in the circulating water system is kept in certain pressure, so that the rigidity of the deionized water curtain on the surface of a laser micro shot peening metal sample is increased, the constraining function of the deionized water curtain for plasma explosion is improved, material surface laser-induced shock wave pressure is enhanced, and an active function is performed on improving a laser micro shot peening intensification effect.

Apparatus (10) comprises a base (12), a plurality of posts (14) attached to the base (12), and a platform (16) defining a surface (18) for supporting at least one mail tray. The platform (16) is coupled to the four posts (14) and is moveable therealong between a first position (20) and a second position (22) (shown in phantom lines) below the first position (20) when a first object (e.g. a full tray) is supported on the surface (18) of the platform (16). As other full trays are stacked on the apparatus (10), the platform (16) is displaced further from the first position (20) until eventually it reaches the base (12). When the full trays are unloaded from the apparatus (10), the platform (16) rises upwards, returning to the first position (20) when none remain on the surface (18). As the platform (16) rises, a space (32) between the platform (16) and the base (12) opens up and is a convenient place to store empty trays.

A method of coating ceramic material fibers in metal using a liquid technique and a device implementing the method. The method maintains a charge of molten metal in levitation in a substantially spherical shape inside a crucible and causes a tensioned ceramic material fiber to travel at a predetermined speed between a bottom pulley and a top pulley disposed on either side of the crucible such that a portion of fiber is immersed in the charge to be covered in a metal coating. During coating, the portion of fiber that is immersed in the charge is shifted as a function of the remaining volume of the charge such that the instantaneous height of fiber that is immersed in the charge remains substantially constant throughout the coating operation.

The invention relates to a sealed lubricator of an enameling machine and belongs to the technical field of the structures of lubricators. The sealed lubricator of the enameling machine is characterized in that: a control valve is installed on a cup mouth of an oil cup; an oil output pipe is connected to the other end of the control valve, and is inserted in an oil inlet on an oil box which is refueled through the oil cup at the top part; a felt fixing clamping plate is arranged at the upper end of one side of the oil box; a felt hole is arranged at the side face of the oil box at the lower end of the felt fixing clamping plate; parts of a first felt and a second felt are installed between the felt fixing clamping plate and a pressing plate in an adhering manner; a part of the second felt enters the oil box through the felt hole; lubricating oil permeates to the upper part of the second felt through the part of second felt stretched into the oil box; and an enameled wire penetrates through the two felts, so that the coating of the lubricating oil on the surface of the enameled wire is realized. The sealed lubricator has the advantages of reasonable design, fixed height of the liquid level in the oil box, uniform oil absorption of felts, no volatilization and waste of the lubrication oil and no pollution to the production environment. As the enameled wire penetrates through the two felts, the coating is more uniform.

A lawn mower includes a hollow shaft, a cutter blade, flaps, a belt type continuously variable transmission, and a transmission mechanism. The cutter blade extends along a horizontal line which is perpendicular to the hollow shaft. The flaps are provided for the cutter blade. Each of the flaps has a flap angle changeable along the horizontal line. A control force converter unit of the belt type continuously variable transmission converts a displacement force of the movable sheave relative to the fixed sheave in an axial direction into a control force that controls the flap angle of the flaps. The transmission mechanism is accommodated inside the hollow shaft, and transmits the control force to the flaps.

A structure of a roll blind that moves in a front-back direction of a vehicle to selectively shade a sunroof glass may include a pair of sunroof frames formed on both lower sides of the sunroof glass in a longitudinal direction of the vehicle, a main roller disposed at the one end of the sunroof frame in a vehicle width direction and can rotate through a motor, an idle roller disposed in the vehicle width direction adjacent to the main roller, a roller tube coupled to and wrapping the main roller and the idle roller to form a closed loop, and a roller guide coupled to both ends of the main roller and the idle roller and including a guide portion formed to protrude so that the blind maintains a constant height.