A sealing assembly for controlling a flow of fluid through a fluid line has a housing having a first end opposite a second end with a hollow interior extending therebetween and an elastically resilient plug disposed within the hollow interior of the housing. The plug has a body engagable with a seat within the housing and a tension member having a first end connected to the body and a second end connected to the housing. The tension member is pre-loaded in tension to urge the body of the plug against the seat to seal the hollow interior of the housing. The body is movable away from the seat when the plug is acted upon by a fluid pressure greater than a pre-load force of the tension member.

A high-pressure valve assembly is provided. The high-pressure aerator valve assembly includes an outer housing with front and back ends terminating a central passageway; a movable valve member having a one-piece unitary metal construction slidably engaged within the central passageway in the outer housing, the valve member having an enlarged head termination sealing the front end of the passageway. The assembly also includes a spring-loaded spring guide member also having a one-piece unitary metal construction which is fixed within the central passageway in the outer housing intermediate the front and back end and a wave spring having a predetermined spring constant for supplying spring tension to keep the moveable valve member sealed. Also included are operational sensors which include a linear shaft displacement counter for counting the number of times the valve member opens and closes; a vibration sensor, or accelerometer, for measuring vibration, a temperature sensor and/or an air pressure sensor. The assembly also includes externally accessible on-board memory for storing sensing data.

A valve configured to selectively communicate fluid pressure therethrough includes a valve body having an inlet, an inlet bore extending inwardly of the body from the inlet, a reduced diameter bore, a cam bore, and an outlet bore therein, the outlet bore in fluid communication with the cam bore, and the cam bore including a sloped wall therein extending inwardly on the cam bore in the direction away from the inlet bore, a first piston disposed in the a reduced diameter bore and including a piston passage therethrough fluidly communicating between the inlet bore and the cam bore, a cam disposed in the cam bore and having a self-energizing seal and a lower angled surface engagable against the sloped wall, the self-energizing seal disposed in a seal piston bore therein, and an outlet extending to the exterior of the valve body and opening into the lower angled surface.

A pressure relief cover for reducing pressure generated in a cell-like cavity, such as a battery cell, having a cover part which holds a seal for sealing a housing opening up to a predetermined cell pressure and having a holding device to fasten it to the housing opening. An advantageous type of mounting with a reliable function is achieved in that the holding device has a spring clip attached to the underside of the cover part at the housing opening with a plurality of radially outwardly directed spring tongues which at their ends are provided with spring sections which are resiliently movable backward in the radial direction upon pressing the cover part onto the housing opening through the opening edge and snap back under a wall area around the opening edge after penetrating the housing opening.

One-way pressure relief valves having a plural-part dry strap are disclosed. One-way pressure relief valves may be applied to a product package to evacuate gas from the package. In embodiments, the plural-part dry strap comprises overlapping dry strap parts which impart improved operation to the valve.

A valve assembly has a housing and a poppet-carrying portion. The housing includes an inlet port, an outlet port, an opening, and a assembly portion including helical grooves. The poppet-carrying portion is configured to be inserted through the opening and engage with the assembly portion. The poppet-carrying portion comprises a poppet head, a closure including protruding arms, convolutions, and a stopping portion. The convolutions extend between the poppet head and the closure and provide compliance such that the poppet head is movable relative to the closure. The stopping portion extends from the closure toward the poppet head and is spaced apart from the poppet head by a maximum compression distance. At a first fluid pressure, the protruding arms engage with the helical grooves, and the poppet head is positioned in a pre-load position that prevents the fluid from discharging through the outlet port.

A setting adjustment tool for a magnetically adjustable device implanted in a patient includes a circumference. A plurality of magnetic coils can be circumferentially distributed on a circumference of the tool. One of the magnetic coils can be movable along the circumference between a plurality of predetermined positions associated with the selectable performance settings. The magnetic coils may also be capable of attracting or repulsing the at least one magnet of the rotor of the implanted device in a radial direction by at least a predetermined angle within a plane of rotation of an at least one magnet of the rotor thereby inducing a rotating moment into the rotor.

In one or more embodiments, a pressure relief valve for a fluid pump has a valve head that has a recessed outlet-side surface that confronts a support end of a spring such that the valve head extends past the support end of the spring toward a pump outlet. The spring is biased to urge the valve head against a valve seat to a seated position. The spring is also configured to be compressed when fluid pressure at an inlet to the relief valve exceeds fluid pressure at the outlet by at least a predetermined amount such that the valve head is pushed away from the valve seat to an unseated position. A pressure relief valve may have multiple outlets at least some of which have unequal flow areas such that fluid pressure distribution across the flow area of the pressure relief valve cavity is nonsymmetrical.

A high-pressure valve assembly is provided. The high-pressure aerator valve assembly includes an outer housing with front and back ends terminating a central passageway; a movable valve member having a one-piece unitary metal construction slidably engaged within the central passageway in the outer housing, the valve member having an enlarged head termination sealing the front end of the passageway. The assembly also includes a spring-loaded spring guide member also having a one-piece unitary metal construction which is fixed within the central passageway in the outer housing intermediate the front and back end and a wave spring having a predetermined spring constant for supplying spring tension to keep the moveable valve member sealed. Also included are operational sensors which include a linear shaft displacement counter for counting the number of times the valve member opens and closes; a vibration sensor, or accelerometer, for measuring vibration, a temperature sensor and/or an air pressure sensor. The assembly also includes externally accessible on-board memory for storing sensing data.

A valve assembly has a housing and a poppet-carrying portion. The housing includes an inlet port, an outlet port, an opening, and a assembly portion including helical grooves. The poppet-carrying portion is configured to be inserted through the opening and engage with the assembly portion. The poppet-carrying portion comprises a poppet head, a closure including protruding arms, convolutions, and a stopping portion. The convolutions extend between the poppet head and the closure and provide compliance such that the poppet head is movable relative to the closure. The stopping portion extends from the closure toward the poppet head and is spaced apart from the poppet head by a maximum compression distance. At a first fluid pressure, the protruding arms engage with the helical grooves, and the poppet head is positioned in a pre-load position that prevents the fluid from discharging through the outlet port.