Abstract: A swim fin (1) for divers or swimmers, having a freely leading profile (7) as the fin blade, which always has a positive angle of attack on both the upwardly (II) and the downwardly (I) oriented stroke of the fin with respect to the oncoming flow direction of the water, which is a product of the forward motion and the stroke of the fin, wherein to increase the propulsive action with simultaneously great freedom of motion of the diver or swimmer, the profile (7) is disposed downstream, in the swimming direction, of the foot (11) of the diver or swimmer and is always located in the undertow of the foot of the swimmer, whether the stroke of the fin is oriented upward (II) or downward (I).

Abstract: A formed piece continuous manufacturing apparatus formed by four endless belts for carrying out a method utilizing such apparatus. At least three of the endless belts are movably supported by a movable device, and the sectional shape of the forming passage is freely controlled by arbitrarily moving at least three endless belts. A method of forming a fiber reinforced foam resin article using the apparatus is described.

Abstract: A fuel injection arrangement for internal combustion engines, having an injection unit embodied as an open nozzle, in which a pump piston embodied as a stepped piston defines two work chambers in a cylinder bore is proposed, by which work chambers a pump work chamber, defined by an annular end face in the pump piston portion of smaller diameter, can be made to communicate with a fuel supply line and an injection port into the combustion chamber of the engine to be supplied. The other work chamber, at least indirectly defined by the larger face end of the pump piston, can be made to communicate according to the invention with a pressure reservoir chamber or a relief line via a pressure line that includes a 3/2-way valve; the supply stroke motion of the pump piston is brought about by the delivery into the work chamber of the fluid under high pressure located in the pressure reservoir chamber.

Abstract: A fuel injection arrangement for internal combustion engines, having a high-pressure fuel pump driven by the engine. The high-pressure fuel pump fills a pressure reservoir chamber with fuel at high pressure which chamber in turn communicates via injection lines with injection valves that protrude into the combustion chamber of the engine to be supplied. For free choice of the injection pressure at the injection valves independently of the rpm, the proposed system operates with two pressure levels. The higher pressure level is the maximum pressure in the pressure reservoir chamber, which via a connecting line that can be opened by means of a connecting valve communicates with a pressure chamber that builds up a second pressure level, and from that chamber the injection lines lead away in turn. The pressure chamber can also be rapidly pressure-relieved via a relief line that has a magnet valve.

Abstract: A breather valve for a gas tank of an internal combustion engine having an adsorption filter which is linked to the atmosphere by a breather line which is controlled by a shut-off valve. As air flows through the shut off valve, contaminations entrained in the shut off valve may deposit in the shut-off valve, so that it will no longer close tightly. For this reason, a particle filter has been arranged in front of the shut-off valve. The particle filter is of a large surface area which is integrated in the housing of the adsorption filter, thus contamination of the shut-off valve (51) and an excessive pressure drop of the air flowing through the particle filter (41) is avoided. The integrated construction facilitates a simple assembly of the adsorption filter (41) which is suitable for internal combustion engines in motor vehicles.

Abstract: The invention provides a device for controlling a ball-shaped projectile's trajectory by propelling the projectile at an angle to the gravitational force upon discharge from a barrel including an O-ring. The barrel has a center axis directly and fully offset relative to and above the shared center axis of a chamber and O-ring located at one end of the barrel. Upon firing, the projectile spins directly up a small bevel on the lower inner edge of the chamber-end of the barrel, thus being projected diagonally into the barrel, the bore large enough to provide clearance between it and the projectile. The projectile has consistent and unimpeded rotational acceleration through the upper portion of the barrel which is ensured by air pressure escaping around the projectile and, via the bevel, along the lower surface of the barrel.

Abstract: An occupant safety device for an automotive vehicle includes a seat including a seat and back cushion. The seat is supported by a pair of left and right supports oppositely provided on the left and right sides of the seat which are supported on the floor of the vehicle. The seat is supported in the front by opposite pins for a pivot motion of the seat cushion. A rotary cover plate is hinged at one end below the cushion and adapted to open an opening formed in the floor surface which permits the back portion of the seat to fall into the opening. The door is suported in a closed ordinary condition by means of a locking pin of a locking pin mechanism. The seat back is supported on the supports and hinged at the upper end and supported at the lower end by opposite lock pin members which when a collision occurs the pins release the seat so that the seat is hinged at its upper end.

Abstract: A slider is provided for connecting a choker assembly including a choker rope having an end provided with a ferrule, to a winchline. The slider has a first winchline-receiving link in the form of a first elongated closed loop defining a first elongated opening for receiving the winchline. The first link also has a longitudinal axis and a pair of opposite ends on the axis, one of the ends is substantially larger in section than the other one and has a curved bottom wall. This first link also has top and bottom surfaces, and a substantially trapezoidal configuration when seen in side elevational view. The slider also has a second choker-rope receiving link in the form of a second elongated loop defining a second opening. This second link is provided with a longitudinal U-shaped slot leading from the second opening out of the second link through an end thereof. This U-shaped slot is sized for receiving the choker rope and has a first extremity within the second opening which defines a seat for the ferrule.

Abstract: An air flow controller has an adjustable air flow passageway and comprises a surface-mounted distribution frame housing one or more elongate passages. Each passage has an inlet, a flow channel and an outlet. The inlet has two opposed guide flaps to control the flow of air passing into the flow channel. Two opposed wall members define the width of the channel, the wall members being adapted to be position-adjusted on control movement of the guide flaps with the outer ends of the wall members defining the outlet.

Abstract: A method of producing overpressure valves for packaging containers supplied in a roll, transported in this form to a packaging machine, separated at the machine and attached to packaging containers by means of an adhesive coated surface. For this purpose the overpressure valves have a layer of emulsion bonding on their underside. To prevent individual layers of the roll from sticking together, the overpressure valves have an adhesive-repelling layer on their top side. The overpressure valves are connected to one another in one piece and in a row, and are separated consecutively in a packaging machine.

Abstract: A known electromagnetically actuatable valve has a tubular housing sleeve, a through opening radially penetrating the housing sleeve, and inside the housing sleeve, a valve body having a valve seat and an associated movable valve closing member, and a throttle, which comprises a throttle body and a throttle insert built into it having a throttle restriction, which is embodied as a throttle bore. The throttle body is slipped on like a cap over an open end of the housing sleeve. The throttle of this kind, embodied in a complex manner, is expensive and demands an inordinate amount of installation space. To reduce expense and save installation space, the throttle body along with its throttle insert is omitted and the function of the throttle bore is taken on by the through opening, the through opening is embodied as narrow opening in accordance with the throttle function to be produced. The valve can be used in antilock devices of hydraulic brake systems for motor vehicles.

Abstract: A pressure modulator for a hydraulic brake system having a first cylinder bore with a servo piston, a second cylinder bore with a control piston, and a guide bore connecting the first cylinder bore to the second cylinder bore, in which a control tappet is disposed in a guide bore. An exact guidance of the servo piston in the first cylinder bore of the pressure modulator is assured. A control tappet is arranged, in the guide bore and the servo piston, on an end toward the control tappet, has a tappet extension that protrudes into the guide bore of the housing. In this way, exact guidance of the servo piston is assured. The novel pressure modulator is especially suitable for hydraulic brake systems of motor vehicles.

Abstract: A packaging machine for filling and sealing containers including a conveyor device with drivers with which container receptacles can be coupled. A changing device that conveys the container receptacles from the drivers to magazine rails and vice versa is located at a station of the conveyor device. The magazine rails are interchangeably secured to a magazine carrier. The changing device has a reciprocating drive with a bar and tappets for transferring container receptacles from the drivers into the magazine rails, and a holding-down device, which is moved via a tie rod, for transferring container receptacles from the magazine rails to the drivers.

Abstract: A fuel injection device for internal combustion engines having a high pressure fuel pump driven by the engine. The pump supplies high pressure fuel to a pressure storage chamber, which chamber, for its part, communicates with injection valves that protrude into the combustion chamber of the engine to be supplied. To achieve precise control of the injection times and injection quantities, the injection valve is directly triggered by a magnet valve, to which end the valve needle of the injection valve is embodied as the valve member of the magnet valve. In order to be able to precisely control very small injection quantities and times (for example pre-injection), the adjusting forces of the valve needle are minimized, to which end the valve needle is pressure balanced in every operating state of the injection valve by directing the high fuel pressure after the start of the valve needle opening stroke also onto the face end of the valve needle remote from the valve needle seat.

Abstract: A fuel injection system for internal combustion engines, having a high-pressure fuel pump and a feed line that feeds fuel from a low-pressure chamber into a pressure-regulatable high-pressure collection chamber. The high pressure collection chamber, which communicates with individual injection units via high-pressure lines. These injection units, which correspond in number to the injection locations in the combustion chamber of the engine to be supplied, are each composed of one injection valve and one three-way valve that controls the injection.

Abstract: A fuel injection nozzle for internal combustion engines is arranged for the injection of a quantity of additive between a preinjection quantity and a main injection quantity of the fuel, in order to favorably affect running smoothness and the course of combustion. To assure replicable separation of the quantity of additive from the preinjection quantity and the main injection quantity, the injection nozzle has an intermediate chamber for the liquid additive, located in a nozzle body between a pressure chamber and an antechamber for the main fuel. Throttle gaps separate the intermediate chamber for the antechamber and from the pressure chamber in the closing direction of the valve needle, when a quantity of additive is pumped into the intermediate chamber, the additive positively displaces the main fuel into the pressure chamber. The additive is pumped into the intermediate chamber through an axial inlet conduit and radial bores in the nozzle needle.

Abstract: A self-propelled cleaning device for a tube where it does not revolve along the inner circumferential wall of the tube used as a piping when desired, and further permitting such a device to revolve along the inner circumferential wall of tube as an occasion demands. The cleaning device for a tube comprises a nozzle supporting body including a main flow path in an axial direction, and for self propelling having ejection holes in an oblique direction communicating with the main flow path formed on the upstream side to which a hose is connected. The main flow path communicates with a liquid supply path formed on the secondary side of a bearing portion for supporting a tubular revolving body having ejection holes for an unbalanced force. A slide valve is internally provided on the secondary side of the nozzle supporting body and is constantly forced in a valve seat direction by a spring member.

Abstract: Disclosed is a roller assembly of the type comprising a roller body provided with opposed ends, a shaft, a bearing having an inner portion and an outer portion and a casing for housing the bearing and a portion of the shaft. The casing has an exterior contacting a corresponding portion of the interior of the roller body and an interior contacting the outer portion of the bearing. The second part of the roller assembly is made of a cured material filling a gap existing between the exterior of the first part of the casing and the interior of the roller body. The material has been introduced in said gap in a fluid state and cured "in situ" without any shrinkage. The roller body according to the invention is more resistant and easier to manufacture. Also disclosed is an efficient method for manufacturing the roller assembly.

Abstract: A fuel injection system for internal combustion engines in which a high-pressure pump and a high-pressure reservoir is supplied with fuel at an injection pressure, from which reservoir the fuel arriving at injection is diverted as a function of time and quantity and delivered via a distributor to one of a plurality of injection points, via two sequentially electrically controlled valves. The injection points are triggered successively by a distributor opening of the distributor. With a fuel pressure, thus held at a certain pressure, in the high-pressure reservoir, a universally controllable fuel injection system is attained in a simple way, at little effort or expense.