A valve for a container for dispensing pressurized fluid has a housing which is mounted on a valve cup, a hollow stem provided in a passage of the housing which stem has at least one lateral inlet opening at its lower end and an outlet opening at its upper end. The lower end of the stem is ball-shaped and forms a ball joint with a correspondingly ball-shaped ball socket being part of the housing, wherein the upper part of the housing is provided with sealing means and the stem is tiltable between a closed position and an open position.

A two-component rotary valve for controlling the fluid flow through a fluid conduit, the rotary valve being injection-moulded in two steps with no need for assembly after the injection moulding procedure. The rotary valve comprises a valve house with a plug inside it, and the rotary valve has sealing means in the form of local variations in the radius of the plug and house along their lengths. Thereby, a rotary valve is obtained which does not require a viscous sealant, such as silicone, to eliminate the risk of leakage, when the valve is open.

A valve seat support for a solenoid valve consists of a sleeve-shaped support housing for accommodating a valve seat body, which is produced from a plastic and which has the contour of a hollow cylinder. The support housing has, on the periphery thereof, a plurality of small-surface recesses, which are directly radially inward and which are surrounded by the plastic of the valve seat body on all sides in order to establish an interlocking connection between the support housing and the valve seat body.

A single core pin assembly (10) having a first core pin (12) and at least one second core pin (14), the first core pin (12) having a first end (16), a second end (18) and a first core pin body (20). The first core pin body (20) connects the first end (16) and the second end (18). The second core pin (14) has a first end (24), a second end (26), and a second core pin body (28) connecting the second core pin first end (24) and the second core pin second end (26). The second core pin first end (24) is configured to join with the first core pin first end (16) to form a common downstream channel (30). The core pin (10) may be placed in a mold and surrounded by a flowable material (e.g. plastic) to form a work piece.

A method for making a valve stem seal, comprising the steps of providing a metal retainer having a top portion and a body portion. The body portion having a first section and a second section. In a first state, the first section of the body portion is cylindrical and the second section of the body portion is cone shaped. Providing a hollow mold. Inserting the metal retainer into the outer mold piece, inserting the inner mold piece into the metal retainer, and then securing the inner and outer mold pieces to each other. Filling a cavity around the top portion of the metal retainer with an elastomeric compound. Removing the metal retainer and the formed rubber sealing element from the mold pieces, and pressing downward over the formed valve stem seal to compress the second section of the body portion radially inwardly.

Provided is a method of bonding two surfaces, which includes providing nitrogen or ammonia plasma to a plastic material where a polysiloxane contacted, and a construct manufactured therefrom.

A drain valve for a compressed air brake system of a vehicle comprises a valve housing defining a valve chamber open at one end and a drain aperture at the opposite end. A poppet has a poppet body at least partially received in the valve chamber and provided with a seal. The poppet is slidable between a closed position in which the poppet and the seal contact the inner wall of the valve housing around the drain aperture thereby closing the drain aperture, and an open position moved away from the drain aperture. A spring urges the poppet to the closed position. The poppet and the seal are incorporated in a single multi-component injection molded plastic part comprising at least two components. The poppet body is formed of a first plastic component and the seal is formed of a second plastic component partially embedded in the first plastic component.

The invention in question is a sealing method for injection molded polypropylene plastic valves, allowing simple and safe sealing of the valve in closed, semi-open and open positions without having to manually add the sealing material, as well as the sealing rib related to the method. The type of valve comprises of two parts (see FIG. 1): a) The Valve Body (2) with inlet (7), outlet (8) and a chamber for the Valve Core (1) b) The Valve Core (1), with the handle (4), valve opening (6) and sealing material (3) The invented method is using double injection techniques to shape the polypropylene Valve Core (1) of the valve in the first injection stage and then apply the thermoplastic elastomer sealing material (3) to the surface of the polypropylene Valve Core (1) in the second stage. In this way the Valve Core (1) and the Sealing Material (3) is made as one part in one single process, but with two separate injection stages. The Sealing Material (3) which is adhered to the surface of the Valve Core (1) is creating a sealing barrier where there is interference between the Sealing Material (3) and the Valve Body (2). The actual sealing is made by a protruded Sealing Rib (5) at the edges of the area of the Sealing Material (3). The elastomer Sealing Rib (5), which will seal against the inner surface of the Valve Body (2), is carefully measured to ensure proper sealing in all open/closing stages, while at the same time not adding too much friction between the parts. This way proper sealing is achieved, without having to increase the torque required to open and close the valve.

The present invention is a method for manufacturing inflatable bladders for use in articles of manufacture. The method includes the steps of providing a first polymer film, applying a curable release coating to the polymer film in a pattern that corresponds to the configuration of the inflatable bladder, curing the release coating to the first polymer film, providing a second polymer film with the first polymer film to form a layered element such that the release coating is disposed between the polymer films, positioning the layered element between two plies of material, applying heat and pressure to adhere the polymer films together except in the area where the release coating has been applied to form an inflatable compartment surrounded by a sealed perimeter, and removing the plies of material from the adhered first and second polymer films.

Device for limiting or keeping constant a quantity of fluid flowing therethrough, comprising: a housing which comprises a front chamber and a rear chamber, a partition arranged in the housing and provided with two or more openings; and a flow limiting element arranged in one or both openings, the flow limiting element comprises the following: a housing provided with an inlet, an outlet and a throughflow opening; and a resilient plate-like valve element which is mounted in the housing and which can substantially close the throughflow opening by resilient movement in the direction of a valve seat arranged in the housing adjacently of the throughflow opening, wherein the valve element is fixed on one side and the valve element can move resiliently on the opposite side in the direction of the valve seat. Mould for producing one or more injection-moulded products, wherein at least a part of the mould is movable and adjustable from the outer side such that the size and/or the shape of the mould cavity is adjustable. The injection moulded product is a flow limiter for limiting the force of the flow of a fluid flowing therethrough, comprising: a housing provided with an inlet, an outlet and a throughflow opening; and a resilient plate-like valve element which is mounted in the housing and which can substantially close the throughflow opening by resilient movement in the direction of a valve seat arranged adjacency of the throughflow opening in the housing, wherein the valve element is fixed on one side and the valve element can move resiliently on the opposite side in the direction of the valve seat.