Abstract: A nipple is attachable to the outer end of the fill pipe of a motor fuel tank and contains a closure flap and a number of other valves performing various functions. The nipple therefore can have unified in it mechanisms performing most or all of the functions required in association with the tank and can be made as a pre-assembled unit quickly and easily attached to a fuel tank in the manufacture of a vehicle to minimize the number of required assembly procedures.

Abstract: In a closure cap for a container, especially for a vehicle radiator, with an outer part (12), an inner part (16) of cup-shape connected with the outer part and insertable into the opening to be closed, and having an overpressure valve arranged in the inner part for opening and closing a pressure compensation channel running through the inner part (16), which overpressure valve includes an axially movable first valve body (26) which carries a first ring shape substantially radially extending sealing surface (36) biased against a ring-shaped first countersealing surface (48) by a spring urging the first valve body toward the bottom of the inner part (16), the first outwardly directed countersurface (48) is formed by a second valve body (46) movable axially between two end positions, which second valve body has an opening radially inside of the first countersealing surface (48) and radially outside of the first countersealing surface has an inwardly facing second ring-shaped sealing surface (52) and an outwardly

Abstract: In a sealing cap for fuel tank pipes of motor vehicles with an outer cap (10) and an inner cover portion (12), the outer cap (10) has, at its inner side, a rib (36), made of synthetic material, which bears at least one radial lug (38) at its open end to serve as connection with the inner cover portion (12). In order to obtain a secure, torsion-proof connection between the outer cap (10) and the inner cover portion (12) during normal use and in order to facilitate a snapping off of the outer cap (10) in the case of motor vehicle accidents, the strength of the lug (38) is calculated to be low, and the torsion-proof connection between the outer cap (10) and the inner cover portion (12) is achieved by a separate positive-locking coupling (56, 58).

Abstract: A pressure relief valve has a valve disc with a valve stem extending through a valve opening and an annular sealing washer disposed between the disc and a valve seat about the valve opening operated by a limitedly flexible, spring loaded, longitudinally ribbed, holding element with a conically tapering central aperture through a central hub thereof through which the valve stem extends to dispose an enlarged valve stem head behind a hub shoulder.

Abstract: A closure cover consisting of an inner cover member having a substantially cup-shape capable of engaging with the aperture to be closed, the cover member including a sealing flange adapted to co-operate with the edge of the opening, an overlapping outer cap member rotatably mounted on the circumference of the edge, which cap member has a centrally located, firmly seated hollow support member for a cylinder lock, the lock being rotatably mounted therein, the cap member being axially supported by a radially displaceable bolt, movement of said bolt being effected by an eccentric, whereby the cover is coupled to the inner cover component, and provided with a sleeve-shaped surrounding component with base closure at the bottom for sealing against the exterior, for a freely rotatably outer cap secured by a key when the inner cover component is firmly tightened on the socket opening wherein an inner cover member has a first cup-shaped member having a radially directed edge flange including a revertive free end portio

Abstract: An arrangement for radially extending partition members insertable in the inside circumference of cap-like closure covers, or a sealing flange edge of a further cover part, comprising the use of strap projections emanating from the lower inside edge of the closure cap spread equidistantly over its circumference inwardly bevelled and rising towards the base of the cap in concentric circle having supports facing subsequently thereto radially against the cap wall for a radial fit mounting relative to the cap wall.

Abstract: A pressure compensation valve arrangement for opening automatically with the occurrence of a pressure difference on opposite sides of a dividing wall including a valve stem having a valve head at one end biassed into sealing relationship against an annular valve seat by a compression valve spring acting at the side of the dividing wall remote from the head and at a flange at the other end of the valve stem. The valve stem at its other end has a hollow cavity and has laterally recessed openings between vertically shaped connecting ribs. The cavity and openings communicate with a passageway bounded by the valve seat when the pressure on the valve stem exceeds a predetermined safety value.

Abstract: A gas tank cap has an inner part connectable to a gas tank filler pipe and an outer part biased outwardly away from the inner part by a spring and normally freely rotatable relative to the inner part. One or more passages in the cap communicate with the filler pipe and with the ambient atmosphere and have valves interposed in them which are so positioned that when the outer part is pushed towards the inner part the valves are automatically opened to vent pressure from the gas tank. Only after the valves have opened in response to pushing of the outer part towards the inner part do the two parts become coupled for subsequent joint rotation so as to permit removal of the gas cap from the filler pipe.

Abstract: A lockable closure cap has a displaceable catch projection. A centrally located lock cylinder is supported in a cylindrical socket located within the cap. The cylindrical socket has an eccentric collar on which a locking ring carrying the catch projection is supported, and the cylindrical socket is rotatable with the lock cylinder to displace the locking ring via its eccentric collar. A sealing ring is supported on the upper edge of the outer socket for providing a liquid-tight seal while allowing automatic pressure compensation.

Abstract: An arrangement of screw caps with a lower screw cap portion and an upper rotable cap portion freely rotatable relative to the lower portion. A lock cylinder is centrally inserted and extends through the cap portions and cooperates with a compression spring and a bridge located between both cap portions to limit the cap tightening torque when the screw caps are secured on containers or screw pipe sockets. The lock cylinder is sealed by a sealing ring located within the lower screw cap portion by compressing the ring intermediate the radially-extending edge portions of a hole through which the lock cylinder passes and a projecting ring flange of the lock cylinder with the aid of the compression spring abutting against an abutment member positioned adjacent the ring flange.

Abstract: A closure cap for containers or for use as a pipe socket closure including a rigid partition having a pair of valves acting in opposite directions for automatically compensating for pressure inequalities on either side of the partition. The valves include additional means for providing improved sealing support on the partition under the action of compression springs.