Abstract: An improved screw washer, and an improved mold for fabricating the improved screw washer. Using a selected metal plate having a thickness thinner than a nominal height demanded for a nut, the invention primarily aims to form an improved screw washer incorporating a nut satisfying the demanded height. The invention is to provide an improved screw washer, and an improved mold for fabricating the screw washer. Particularly, using this improved mold, the improved screw washer can easily be manufactured, where the above-identified nut is solidly bonded with the metal plate without being disengageable therefrom, and yet, a sufficiently lengthy tapped hole is formed. Structurally, a nut is formed in the state of being continuous to a metal plate after punching out part of the metal plate.

Abstract: A folding fan, more specifically a folding fan used as an advertisement medium. A rectangular shape piece of paper is placed on another paper piece of the same shape, the pieces of paper are opened in such a way that the vertex A at the top right side of one rectangular paper piece is against the center of an opening m selected at a prescribed position on the center line F in the direction of a longer side agrees with the vertex C at the top left side of another rectangular paper piece. The line segment connecting the point E, which is obtained on the vertex side at the bottom right side of the rectangular paper piece at the point where the distance between the vertexes B and D on the bottom side of the two paper pieces opposing the agreed vertex is divided into three equal parts. The agreed vertex A at the top right side of the rectangular paper piece is taken as a bend line, and the rectangular paper piece is folded in the shape of a valley at the bend line.

Abstract: Known pressure regulator valves for motor vehicles are comprised of a relatively large number of individual parts that have to be assembled at a high cost. In the pressure regulator valve set forth, the stop piece and the housing part are injection molded. This reduces assembly costs in the manufacture of the pressure regulator valve. The pressure regulator valve is particularly suited for fuel delivery systems of motor vehicles with an internal combustion engine.

Abstract: A fuel injection device for internal combustion engines in which a fuel injection valve has a tappet which is actuated by an injection valve member and defines a control chamber that is supplied continuously with high fuel pressure via a throttle and can be relieved via a control valve and an outflow conduit. To that end, the control valve has a valve member, which is actuated by a piezoelectric element in such a way that the valve member is moved toward the control chamber when the outflow conduit opens. In the closing position, the valve member is urged in the closing direction by the pressure in the control chamber.

Abstract: A package delivery device of a filling and closing machine has a conveyor belt (31) and above it, spaced apart by the package height, has a top belt (41). To adjust the clearance of the top belt (41) from the conveyor belt (31) to the format height and to compensate for filling level fluctuations of the packages 1, the arrival end of the conveyor belt (31) and the delivery end of the top belt (41) can be adjusted in opposing directions, whereas the arrival end of the top belt (41) and the delivery end of the conveyor belt (31) are stationary. A linear drive (51) produces the vertical adjustment via a common adjusting rod assembly.

Abstract: A piston pump for pumping fuel in which a risk of fuel getting into the area of a shaft seal is limited. The fuel pump includes a separation chamber which is provided between a shaft seal and a fuel chamber that contains fuel. Located in the separation chamber is for instance air as a separator means, and the separation chamber communicates with an air inlet of the engine. This assures that fuel cannot get into the area of the shaft seal or escape to the outside. The fuel pump is suitable in particular for internal combustion engines in which the fuel must be delivered at high pressure.

Abstract: A fuel pressure regulating valve for motor vehicles which decreases, the noise behavior of pressure regulating valves frequently found to be annoying. The pressure regulating valve includes a sealing gap, a first part, and a second part of a connection opening which are dimensioned so that the noise behavior of the pressure regulating valve is significantly better than that of known pressure regulating valves. The pressure regulating valve is particularly suited for fuel delivery systems of motor vehicles with an internal combustion engine.

Abstract: A dental assist appliance for attachment of an orthodontic wire for achieving an effective correction of irregularities of the teeth or of improper dental arch for a short time. The dental assist appliance includes a base shaft member and an elastic member having one end fixed to said base shaft member and the other end formed as a sliding portion slidable along said base shaft member. Further, an orthodontic appliance using the dental assist appliance includes two dental assist appliances each having a sliding portion; and a dental orthodontic wire interposed between the sliding portions of the two dental assist appliances.

Abstract: A simplified, economical, noise-abating mode of securing a unit embodied for instance as a valve. For securing the unit, the unit has a housing with a first portion having a first encompassing outer face and at least one second portion having at least one second encompassing outer face, wherein a first sealing ring can be mounted on the first outer face, and the first portion and first sealing ring can be introduced into a recess of an installation wall. A second sealing ring can be mounted on the second outer face of the second portion, and the second portion and second sealing ring can likewise be introduced into the recess, so that the support of the unit in the recess is effected by means of the first and second sealing rings without the first and second outer faces of the unit resting on inner faces of the recess.

Abstract: The invention relates to a hydraulic pump unit with an electric drive motor and a radial piston pump that is provided as a return feed pump for a motor vehicle for a slip-regulated, hydraulic brake system. To drive the pump pistons, the invention provides a rod-shaped eccentric element that is supported eccentrically with ball heads in a shaft end of a drive shaft of the drive motor and disposed on an opposite side of the pump pistons in a pump housing is supported so that the eccentric element can swivel around a solid angle. When the drive shaft is rotated, the eccentric element executes a movement on a surface of a cone so that the pump pistons resting against the eccentric element are driven in a reciprocating stroke motion. The invention has the advantage of a mechanically defined bearing support of the drive shaft and eccentric element so that the bearing of the eccentric element, which bearing is fixed to the housing, does not have to be exactly flush with the drive shaft.

Abstract: The invention relates to an electrohydraulic unit for regulating the brake fluid pressure of a motor vehicle. The device includes a hydraulic block, on whose one side an electric motor is affixed. The electric motor includes electrical connections which protrude through the hydraulic block to an opposite side of the block and are connected there to electrical conductors of a mounted control device that covers the electrical conductors. For a simple contacting of the electrical connections, the conductors are helical wound around guide pins, which protrude into blind bores in the hydraulic block for the positioning of the mounted control device on the hydraulic block during assembly so that free ends of the electrical conductors reach into forked ends of the connecting pins before the mounted control device covers the connections. Contact points are therefore accessible for the production of an electrical connection during the assembly.

Abstract: A sealing device for a fluidtight screw connection. When screwing in a screw to be sealed into a fluid-carrying threaded bore of a component, in order to prevent a rectangular sealing ring from extending into a gap between a radial flange of the screw and the component as a result of tangential stress, the sealing device embodies a rectangular sealing ring having a thinner thickness than a countersink into which the sealing ring is inserted. A radial flange of the screw includes a collar that protrudes into the countersink and elastically compresses the rectangular sealing ring so that the sealing ring rests sealingly against a bottom of the countersink and against the collar of the screw.

Abstract: An improved adjustability and functional reliability of a device for time-dependent control of a duration of regeneration of an air dryer including a piston, which is longitudinally guided, displaceably counter to a resistance, in a cylinder by the force of a spring. The cylinder is closed by a cap, on which means for adjusting the prestressing force of the spring, supported at least indirectly on the cap, are provided. These means comprise a screw-wedge connection, which joins the cylinder and the cap to one another in such a way that by twisting the cap, an axial displacement of the cap relative to the cylinder is brought about. The device can be used for instance in air dryers for compressed air systems of motor vehicles.

Abstract: A fuel injection valve for internal combustion engines, having a valve body member axially displaceable in a bore of the valve body. The valve member has a sealing face with which the sealing face cooperates with a valve seat on the valve body. The valve body has at least one injection opening, which can be uncovered in a course of a valve member opening stroke motion only after a certain idle stroke has been excited and the valve sealing face has lifted from the valve seat. The injection opening is provided in the wall of the valve body and an inlet opening of the injection opening is closable by the valve member.

Abstract: The invention relates to a pressure valve for installation in a supply line between a pump work chamber of a fuel injection pump and an injection site in an internal combustion engine to be supplied thereby. A valve body is provided with a valve seat and has a through conduit in which a pressure valve closing member is guided. A check valve is disposed in a work chamber, wherein the check valve and the pressure valve closing member are movable relative to one another, in the through conduit. A restoring spring on the injection side causes the check valve to rest in the through bore and on the pump chamber side disposes the pressure valve closing member to the valve seat of the valve body.

Abstract: An air duct system of an internal combustion engine comprising various components disposed at various points in the engine compartment of the motor vehicle. The air duct system includes a gas guide chamber that leads through the air duct system via a course such that only a small total installation space is needed. Part of the air duct system is curved, and the curved region has another part of the gas guide chamber that passes through it. The air duct system is intended in particular for an internal combustion engine of a motor vehicle.

Abstract: A flow rate meter having a temperature-dependent measuring element in which the device has a measuring conduit, which is equipped with a flow connection that extends from an inlet to an outlet, in order to cause some of the medium flowing in the measuring conduit, in the flow connection, to bypass the measuring element. The device is intended for measuring the mass of a flowing medium, in particular for measuring the aspirated air mass of internal combustion engines.

Abstract: The invention relates to a hydraulic vehicle brake system with a master cylinder, with two brake circuits (I, II), with wheel brakes connected to the brake circuits (I, II), and with a wheel slip regulator device disposed between the master cylinder and the wheel brakes, which device has at least one brake pressure modulation valve device and at least one high pressure pump, and with a pump unit associated with this high pressure pump. In the automatic braking operation by means of at least one of the high pressure pumps, the pump unit is used for supplying hydraulic fluid to the high pressure pump. The pump unit has a low pressure pump in the form of a gear pump.

Abstract: A machine tool which operates with a hydropneumatic pressure intensifier whose step piston is braked hydraulically in particular towards the end of its stroke by forcing hydraulic fluid from a braking cavity formed during the stoke via a choke point.

Abstract: A lock for a container lid which comprises a retractable U-shaped handle secured for movement within apertures in a side of a container and a U-shaped handle which is fixed to the container lid. In closing of the container lid, the lid is closed with the fixed U-shaped handle straddling the retractable U-shaped handle in a retracted position. When the lid is in place, the retractable U-shaped handle is pulled outwardly and the retractable U-shaped handle is secured by some lock means to the U-shaped fixed handle. Thus, the container lid cannot be opened until the lock is removed.