Abstract:
A pressure relief valve comprises of a substantially elongate valve body (1) with an internal air bleed chamber (2), an adjacent air bleed passage (3) and a tyre valve engagement means (4). The valve body (1) is provided with a cap (5) adjustably mounted to an open end of the air bleed chamber (2). A valve piston (6) is disposed within the air bleed chamber (2). A biasing spring (11) is mounted on the valve stem (9) and is compressed between the cap (5) and the valve piston (6). An air bleed hole (19) is provided in the wall of the valve body (1). A strike pin (13) extends from the tyre valve engagement means (4). When the valve body (1) is coupled to a two way valve (14) of a pneumatic tyre and the strike pin (13) contacts a needle (15) within the two-way valve (14) pressures can be reduced in proportion with a predetermined compression applied to the spring (11). The air bleed chamber (2) and cap (5) have complimentary external and internal threads (16). The compression of the spring (11) of the valve is adjusted according to the degree that the cap (5) is advanced on the air bleed chamber (2) thread (16).
Abstract:
A tire fill valve (2) having pressure relief and tire fill fluid gas flow limiting characteristics for use in filling tires to a predetermined pressure from a large flow capacity gas source delivering fill gas at a substantially greater pressure. Gases utilized typically are air or nitrogen. The valve (2) of the invention is wheel mounted intermediate the gas pressurizing source and the tire gas valve inlet (1). Tire fill gas from a high pressure high capacity source passes through a flow limiting orifice (26) having a positive closure or shutoff member (28) and passes through a pressure sensitive chamber (42) as it enters the tire. Chamber pressure is sensed by a spring loaded valve disk (46) controlling relief or venting orifices. When fill pressure in the pressure sensitive chamber (42) exceeds a predetermined value established by the valve disk area and valve disk springs (44), the disk (46) lifts allowing the venting of the fill gas. Overpressurization of the pressure sensitive chamber (42) and tire with the disk (46) in its relief position is prevented by limited flow and/or positive flow shutoff through the chamber entrance or flow limiting orifice (26).
Abstract:
A valve stem having a hollow tube and a compression sleeve mounted to the hollow tube; wherein the hollow tube and compression sleeve are partially insertable through a container wall opening from an exterior side of the container wall through to an interior side of the container wall, and a mechanism accessible from the exterior side of the container wall to compress the compression sleeve against the interior side of the container wall.
Abstract:
Válvula para cámara o neumático compartimentado que incluye varios conductos de paso y estanqueidad aumentada. Para ello cuenta con un extremo para ser acopiado a un sistema de inflado/desinflado; otro extremo en contacto con la llanta; un canal de paso entre ambos, con apertura mediante una tapa solidaría a un vástago móvil, La válvula tiene, al menos, dos cavidades con medios de conexión a los compartimentos estancos de la cámara o neumático. Una de las cavidades se desplaza de forma solidaria al vástago, permitiendo, en la posición de apertura, el flojo de gas o liquido por el canal de comunicación entre las cavidades. Se elimina, así, la existencia de superficies de fricción, aumentando la estanqueídad, la presión máxima de operación y la vida útil. Se reduce, además, el número de elementos de contacto, facilitando una fabricación en serie más sencilla, al reducir el nivel de precisión requerido en sus componentes.
Abstract:
A valve assembly for a tire pressure management system. The valve assembly including a housing. The housing includes a valve cavity. A cage member is positioned within the valve cavity. The cage member is in a sealed relationship with the housing. A piston is moveable within the cage member. A biasing member is provided in a biasing member cavity portion of the valve cavity. The biasing member contacts a stem portion of the piston to urge the piston away from the biasing member cavity portion.
Abstract:
A reduced outflow valve in fluid communication with an inflatable apparatus comprising a tubular body defining an inner bore and a plunger slidingly engaged in the bore. Inflation of the inflatable apparatus urges the plunger to a first position configured to allow rapid ingress of air into the cushion to inflate the cushion and deflation of the inflatable apparatus urges the plunger to a second position wherein the plunger is configured as a baffle to dampen or slow air egress during release of air.
Abstract:
Various embodiments of the present disclosure provide a reusable valve (10) in which a seal portion (124) is co-molded with and overmolded to the valve stem (30) to provide a secure mechanical bond therebetween. In one embodiment, the valve includes a snap fit between the valve stem (30) and a retaining cap (50) to provide easy assembly of the valve as well as an efficient and compact retention mechanism for a biasing spring (40) and the valve stem (30) in relation to the valve housing (20). In one embodiment, the valve includes an easy-to-use opening and closing mechanism that provides tactile feedback to the user when moving the valve stem to an open position and to a closed position to inflate, deflate, or maintain air or gas pressure in the inflatable article. The present disclosure also provides a dunnage bag with such valve.
Abstract:
The present invention relates to inflatable bodies or systems with bounding walls or bladder structures and at least one valve assembly thermally bonded thereto. More particularly, the present invention provides a valve assembly for inflatable bodies typically made from a thermoplastic rubber material or the like, which will exhibit significantly increased strength and durability during inflation and while inflated, especially at and around the interface between the air valve assembly and the bounding wall of the inflatable body because of the enhanced strength of the interface through thermal sealing.