153results about How to "Avoid premature wear" patented technology

A cowl assembly for an engine nacelle including a first and second cowl door mounted for movement between an open position and a closed position. A latch assembly retains the first and second cowl doors in the closed position by having a latch retained in a latch housing on the first cowl door to engage a keeper retained in a keeper housing on the second cowl door. A pin retains the latch to the latch housing. The pin defines an internal bore. A sensor in the internal bore determines a signal indicative of a load on the pin, wherein the signal is determinative of whether the cowl doors are in the open or closed position. A transmitter conveys the signal to a location remote from the sensor. The signal can also be used to set the pre-load on the latch assembly.

The invention concerns a method for stabilizing and conditioning wastewater sludge. The invention is characterized in that it consists in treating sludge in an acid environment (3.0≦pH≦5.0), with an inorganic acid and two oxidizing agents, that is a ferric iron salt and hydrogen peroxide. The ferric iron salt is used in such an amount as to obtain a concentration ranging between 5 and 40 kg of Fe per iron of dry sludge; the hydrogen peroxide is used in such an amount as to obtain a concentration ranging between 5 and 40 kg of H2O2 per ton of dry sludge; mixing the treated sludge for a time interval sufficient to stabilize the sludge and improve its dehydrability; then flocculating the stabilized sludge by adding an organic polymer; then dehydrating the flocculated sludge. Said method enables to significantly improve the dehydrability properties of the sludge while increasing the dry solid content during its mechanical dehydration.

An agricultural cutting blade has top and bottom surfaces and mounting apertures extending through top and bottom surfaces. A cutting edge support surface (e.g. that may be a flat, pointed or rounded) is formed on the cutting blade body with the cutting edge support extending along a side of the cutting blade body transversely between the top and bottom surfaces. A clad material deposited upon the cutting edge support such as by laser cladding process. The clad material can be built up, that is layered in partial or full overlapping relation to provide at least 2 and often more than 4 layers of clad material at one or more locations. A cutting edge provided by the clad material that may be a ground surface into a laser clad bead.

A guide device for guiding a variable-pitch blade, in particular in a turbomachine compressor, the blade having a pivot formed by a cylindrical axial shank mounted in a cylindrical housing of a casing and pivotally guided about an axis in said housing by bearings, where the bearings are abutment bearings with conical rollers, the axes of the rollers being substantially perpendicular to the pivot axis of the blade.

A knee joint endoprosthesis system includes a femur component, two friction bearings and a tibia component. The tibia component comprises two joint surface units and a transversal support. The transversal support is implanted into the tibia at a certain distance from an upper resection surface of the tibia and the joint surface units are supported by support elements on the transversal support and are fixed thereto.

An applicator die for crimping open loop type terminals to wire leads comprising applicator housing, a plurality of blades and a plurality of housing. An applicator housing is provided which is extended or retracted vertically in response to an applicator force applied thereto. An insulation blade housing with an insulation blade and a core blade housing, with a core blade are movingly disposed inside the applicator housing. Prior to a crimping operation, the applicator housing is retracted and a terminal is moved into position and aligned with the insulation and core blades. A lead wire is also positioned inside the terminal. As the applicator housing descends in response to the applicator force, it pushes the lead wire down into contact with the terminal. A cam lever, acting under the influence of the applicator force, moves a cam vertically, bringing together complementary members of an insulation anvil and a core anvil. As the complementary members of the insulation anvil come together, they pinch the terminal to prevent movement of the terminal during crimping. As the applicator housing descends, the insulation blade housing and core blade housing move from the first position to slidingly embrace the insulation and core anvils. The core blade and insulation blade reach the second or extended position in which they crimp the terminal to a lead wire.

There is disclosed a plain bearing comprising: a back metal; and a bearing alloy layer bonded onto the back metal which bearing alloy layer is provided at a surface side thereof with a cylindrical bearing face extended in the direction of the axis of the plain bearing, the bearing alloy face being provided at each of axial terminal portions thereof with an inclination face inclined radially outwardly from a location defined between both of axially terminal ends of said bearing face toward said axially terminal ends thereof, the inclination face having an axial length varying along the circumference of the inclination face.

A helical discharge flute formed in the sides of a collection cone of a grinding machine is disclosed. The collection cone has a collection area and a discharge area, with a discharge tube at the most downstream end. The helical discharge flute cooperates with an auger located through the bore of the collection discharge area to create a restricted flow of material into the flute. In this manner, only hard particles are removed from the collection cavity of the collection cone and discharged to the discharge tube.

A method for optimizing the friction, wear, and function of an injection-molded throttle valve unit, including a throttle valve housing and a throttle valve that can move in relation to it. The throttle valve housing is injection molded out of a first plastic material inside a first cavity, then transferred to a second cavity. Bearing bushes are inserted into the throttle valve housing to constitute a hard / hard friction pairing between the bearing bushes and the throttle valve housing; either the bearing bushes are inserted into the throttle valve housing in a non-rotating fashion and the valve shaft rotates in relation to the bearing bushes or the bearing bushes rotate in relation to the throttle valve housing. The bearing bushes are preferably manufactured out of a metallic material and remain dimensionally stable when subjected to the injection pressure.

A fifth wheel lubricating system for greasing the interface between the upper and lower fifth wheel plates while the trailer is couple to the tractor. The system supplies grease form a cartridge that is coupled to a solenoid activated grease valve and controlled by means of an electrical controller mounted in the cab or on the catwalk of the fifth wheel tractor. The grease gun is operated pneumatically from an onboard air compressor or can be manually operated by means of a hand pump lever built into the grease gun. A primary grease hose carries grease from the grease valve to a grease distribution hub, where it is distributed to two or more distribution hoses that connect to the bottom side of the tractor mounted lower fifth wheel plate. The grease is forced up through holes in the lower fifth wheel plate, into grease slots on the top side of the lower plate. In operation, the driver can push a button on the controller and force a desired amount of grease into the grease slots located at the interface between the upper and lower fifth wheel plates, thereby providing a more convenient, cleaner, and more efficient means of lubricating a fifth wheel.

The invention relates to a shoe, especially for sport or leisure, comprising an upper, a sole and a lacing device having at least one clamping strip passing through a space arranged at the level of the sole and a clamping element. The clamping element is attached, on the one hand, to a first end of the clamping strip and, on the other hand, to a holding zone placed at the rear of the shoe. The second end of the clamping strip, passing through the clamping element comprises an attachment device on the upper, allowing the fixing of the strip. Cooperation exists between the clamping strip, the clamping element and the holding zone causing tensing of the upper at the level of the instep and the articulation above the heel.

The present invention relates to adjustment and / or drive units which can be used in wind power plants for adjusting the azimuth angle of the nacelle of the wind power plant or the pitch angle of the rotor blades, wherein such an adjustment and / or drive unit has at least two adjusting drives for rotating two assemblies which are mounted so as to be rotatable relative to each other, and has a control device for controlling the adjusting drives. Said control device controls the adjusting drives in such a manner that the adjusting drives are braced relative to each other during the rotation of the two assemblies and / or when the assemblies are at standstill. The invention further relates to a wind power plant comprising such an adjustment and / or drive unit, and to a method for controlling such an adjustment and / or drive unit. According to the invention, the control device comprises a bracing-adjustment device for variably adjusting the intensity of the bracing of the adjusting drives as a function of a variable external load on the assemblies being adjusted, wherein said intensity can be determined by means of a load determining device. According to another aspect of the invention, an overload protection is included, wherein the individual loads of the individual adjusting drives are determined by load determining devices and, in the event that an adjusting drive reaches overload, the distribution of the drive torques is modified in such a manner that the adjusting drive reaching overload is relieved or at least not further loaded, and at least one further adjusting drive is more heavily loaded in a supporting manner or is less heavily loaded in a bracing manner.

The invention relates to a device for controlling a starter for a heat engine that is equipped with an electric motor having a field coil with several windings and an armature winding, both of which are mounted in series, comprising a power contact which is equipped with terminals, one of said terminals being connected to the positive terminal (+Bat) of a battery and the other terminal being connected to the field coil having several windings. The inventive device comprises first means which, in a first phase upon closure of the power contact, activate part of the windings of the field coil and second delayed-action means which, in a second phase during which the power contact is always closed, activate at least a large number of the windings of the coil. The invention is intended for the heat engine starter of a vehicle.

Solidborne noise and vibration is decoupled in a rotary wing aircraft by a laminated ball joint (15) for a suspension bar (13) of a transmission gearbox, the ball joint including at least two damper layers (19) dedicated to a frequency band for decoupling in the range 0 to 7000 Hz. For this purpose, the damper layers (19) and possibly also likewise dedicated interleaved layers (20) are given shape and / or dimension and / or physical-property parameters as a function of the frequency for decoupling in the determined frequency band.

A cutting tool for a stump cutter device, having a holder and at least one cutter insert unit, wherein the cutter insert unit has a cutter head and a shank, and wherein the cutter insert unit can be connected with the holder by its shank. To achieve a simple and cost-effective tool exchange, along with the simultaneous low wear of the contact faces, the shank of the cutter insert unit respectively has at least a tapering shank section and at least a widened shank section. The holder has a recess with protrusions corresponding to the tapering shank section and an undercut area corresponding to the widened shank section and thus provides a positive connection between the shank and the holder.

A portable manual seawater desalter comprises a pre-filter and a reverse osmosis component. The reverse osmosis component comprises a membrane shell and a reverse osmosis membrane arranged in the membrane shell; the reverse osmosis membrane is provided with a seawater inlet, a desalted water outlet and a concentrated water outlet; the invention also comprises a water suction and drainage piston and a pressure-control valve; a safety valve can be arranged in the water suction and drainage piston. The beneficial effects of the invention lie in that, 1. the water suction and drainage piston and the pressure-control valve are cleverly designed; when the piston rod is pushed to provide the necessary work operating pressure required by the reverse osmosis membrane, redundant seawater pressure (the pressure of the concentrated seawater) can help to push a piston rod to achieve a real manual desalter; 2, the safety valve can be effective in ensuring the normal operation of desalter to enable a longer service life of the desalter.

Disclosed is an improved snow shovel having a graphite in-laid polyethylene blade with outwardly propagating reinforced ribs providing a flex resistant blade of minimal thickness. A shaft of the shovel is constructed of a low cost steel pipe covered with a polyethylene sleeve with knurled grip surfaces. The sleeve conforms to the pipe diameter upon application of heat during manufacture. A one-piece handle is attached to the free end the shaft. For storage purposes a cutout is provided on a top edge of each shovel allowing nesting of similarly shaped shovels. A straight blade shovel and a pusher type shovel are two embodiments disclosed herein.

The invention discloses a tooling clamp for processing an insulating collar turning. The tooling clamp comprises a concave clamp (8) and a convex clamp (9), wherein the concave clamp (8) comprises a jaw chuck A (10) and a plurality of equant sectorial blocks A (11), the sectorial concave part in each equant sectorial blocks A (11) is composed of a sectorial plane A (13) and a arc-shaped surface side wall A (14), the convex clamp (9) comprises a jaw chuck B (15) and a plurality of equant sectorial blocks B (16), a sectorial plane C (19) is also arranged on the outer side of each equant sectorial block B (16), and the invention further discloses a processing method. The tooling clamp provided by the invention has the advantages that the gripping force is even, so that the deformation of a workpiece is avoided, the clamping efficiency is improved, the time is saved, the workpiece quality and the processing efficiency are improved, and the consistency and the reliability of a part is increased as well.

The present invention relates to a rotorcraft rotor blade (1) including at least one tiltable trailing-edge flap (5), said flap (5) being suitable for pivoting about a virtual hinge axis (Y′) extending substantially along the span of said blade (1) and of said flap (5). The blade (1) is remarkable in that it is provided with at least one main ball joint (30) provided with an inner cage (32) together with a first pin (31) and an outer cage (33), the front portion (33′) of said outer cage (33) of the main ball joint (30) being connected to a linear actuator (10, 10′) arranged in said blade (1) and serving to pivot said flap (5), said first pin (31) of the main ball joint (30) being substantially perpendicular to said virtual hinge axis (Y′) about which said flap (5) pivots.

A pump and valve assembly for an implantable prosthesis is provided with an internal actuating bar positioned such that when any portion of the housing is compressed, the check valves within are opened allowing for deflation of the cylinders. The pump and valve assembly also includes a textured surface over a portion of the housing to allow for quick identification of the component, as well as to make it easier for the patient to grasp it. The valve assembly further comprising an actuating bar which has ribs to enhance the spring force applied to a flow valve, a support structure to support and appropriately position the actuating bar, and a check valve made of metal with a segment covered with a plastic material.

A glove has a palmer portion and finger portions configured for placement of a base layer of the palmer portion in contact with a palm of a hand when the glove is fully engaged. A topper layer of the palmer portion is fixedly engaged over the base layer with a resilient pad engaged between the base and topper layers. The resilient pad is outlined by a first stitching of elongated oval shape, and is parted by a second, approximately linear stitching extending at an angle across the palmer portion in correspondence with a lateral fold in the palm of the hand.

The invention relates to a radial rolling bearing, especially a single-row deep groove rolling bearing, which substantially consists of an outer bearing ring and of an inner bearing ring as well as of a multitude of rollers, arranged between the bearing rings and held at uniform distances from one another in the peripheral direction by a bearing cage which is assembled from two ring halves. The rollers of the radial rolling bearing are configured in the form of spherical disks that each have two parallel lateral surfaces which are symmetrically flattened from a basic spherical shape and which roll off in two groove-type raceways with their faces. Said raceways are incorporated into the inner face of the outer bearing ring and into the outer face of the inner bearing ring. The bearing cage according to the invention is characterized by having individual cage pockets for each roller, said pockets encircling the roller on a reference line. The rollers are axially guided between the bearing rings via two low-friction line contacts between their lateral surfaces and the longitudinal webs of the cage pockets. The rollers are configured to have a defined degree of freedom for self-alignment to the pressure angle of the radial rolling bearing.