Abstract: A fluid pressure apparatus of this invention provides advanced control without imposing an excessive burden on a sequencer. When a plurality of fluid pressure apparatuses are connected to one another by manifolds, the individual fluid pressure apparatuses are provided with controller circuits each having a memory inputted with a control step, wherein each of the controller circuits activates each of control valves and a sensor based on an operating instruction issued from the sequencer to thereby execute processes such as confirmation of a controlled state, a trouble decision, etc.

Abstract: A duckbill valve is provided based on a valve seal with a hollow cylindrical body with first and second ends, the first end having an open mouth, the second end having a closable mouth circumscribed by a pair of crescent shaped lips. One of the lips has a thinner width than the other. The cylindrical body flares outward in the direction from the first end towards the second end. In another aspect, the cylindrical body includes a posterior and an anterior section adjacent the respective first and second ends, the anterior section having an outer wall portion curvilinearly tapering toward the thinner lip. Valves of the present invention are particularly suitable for controlling flow of semi-solid substances because the mouth of the duckbill can open to a relatively large extent, the latter being off-center within a round collar fitting.

Abstract: A cut-off valve consists of a hollow rigid body and a flexible or supple forated plug. The plug defines a flow pate therethrough and is sealed in the rigid body between the rigid body's inlet and outlet to define a free volume in the rigid body between the inlet and the plug. The plug flexes or deforms in response to a differential pressure thereacross to collapse into the flow path when the differential pressure exceeds a predetermined threshold thereby stopping the flow.

Abstract: There is provided a self-sealing valve structure. The structure has a first sheet of thermoplastic material and a second sheet of thermoplastic material in face-to-face relationship with each other and are secured together along a portion of the longitudinal edges of the sheets and define a passageway therebetween. In one embodiment, the passageway has an air inlet end and an air outlet end. The air outlet end has at least a pair of air outlets located at each of the longitudinal edges of the valve and directing the incoming air through each of the longitudinal edges near the outlet end of said valve. The air outlets are formed by an air deflector blocking the end of the outlet which is preferably of a U-shape or a V-shape. In another embodiment, the passageway directs air through only one longitudinal edge of the valve.

Abstract: A water bag type brassiere mounted in one cup of a brassiere and having a valve partially projecting to the outside through which the volume of contained fluid in the padding can be adjusted with a syringe, the valve including a rubber valve body and a rubber binding sleeve sleeved onto the rubber valve body, the valve body having longitudinal center hole at its heat outside the padding, and a split forced to close by the binding sleeve, the split being opened to let fluid pass when a needle of a syringe is inserted into the longitudinal center hole of the valve body.

Abstract: The present invention is directed to an inversion-resistant tide gate valve comprising a generally tubular sleeve bounding a longitudinally-extending flow-through passage for fluids, the sleeve having an upstream fluid inlet end region adapted to be affixed to an effluent conduit and a downstream fluid outlet region, the downstream fluid outlet region of the sleeve being integrally formed with a longitudinally-extending trough, where the trough is formed of an integral bottom wall and an integral pair of side walls. A disc is affixed along a first portion of its periphery with a flexible member to the downstream fluid outlet region of the sleeve, and a second portion of the periphery of the disc opposite the first portion rests within the trough on the bottom wall of the trough.

Abstract: The present invention relates to a double-valved variable pressure device for hydrocephaly having a vertical capsule with sloped ends ending in upper and lower coupling sectors appropriate for connection to a proximal catheter and a distal catheter that constitute the input and output for a cephalo-rachidian liquid through the body. The liquid or volume has its pressure controlled by means of two valves which maintain a constant drained volume along a wide range of pressures the device is submitted to.

Abstract: A non-drip valve for the discharge of liquid comprises a through-flow channel (2) from whose end the liquid emerges and at least one elastic member (12) within the through-flow channel (2) which reduces its volume when the pressure in the liquid increases and thereby frees the through-flow channel (2) and which enlarges its volume when the pressure of the liquid flow decreases and closes the through-flow channel when the pressure of the liquid flow falls below a certain pressure value.

Abstract: A one-way fluid valve formed of a parallel plurality of one-way valve cells, each cell comprising three flexible leaflets each bonded to 1/3 of the edge of a hexagonal opening in a frame, their free center edges joining to close upon pressure from one side and separating to open the valve upon pressure from the opposite side of the frame.

Abstract: A valve range is suggested suitable for use in connection with the control of fluid operated equipment. It possesses a fluid manifold, which is able to be fitted with pneumatic valves, which are operated via a signal manifold electrically. The valve range is so designed that it is suitable for the combined operation or control both of pneumatic valves and also of hydraulic valves. For the control of hydraulic valves it is provided with at least one control connection, from which the respective control signals may be taken. It is in this manner that, starting with a central valve range both pneumatic and also hydraulic valves may be operated and controlled in a comparatively simple fashion.

Abstract: An elastomeric valve assembly designed for use in an inflatable surgical implant to provide a self sealing means for filling the implant. The valve assembly incorporates vulcanized elastomeric strips molded between two larger silicone sheets, wherein the strips form a collapsible self-sealing channel through which a fill needle may be inserted through slits in the strips and sheets.

Abstract: A valve prosthesis (9) for implantation in the body by use of catheter (11) comprises a stent made from an expandable cylinder-shaped thread structure (2,3) comprising several spaced apices (4). The elastically collapsible valve (4) is mounted on the stent as the commissural points (5) of the valve (6) are secured to the projecting apices (4).The valve prosthesis (9) can be compressed around the balloon means (13) of the balloon catheter (11) and be inserted in a channel, for instance in the aorta (10). When the valve prosthesis is placed correctly the balloon means (13) is inflated thereby expanding the stent and wedging it against the wall of aorta. The balloon means is provided with beads (14) to ensure a steady fastening of the valve prosthesis on the balloon means during insertion and expansion.The valve prosthesis (9) and the balloon catheter (11) make it possible to insert a cardiac valve prosthesis without a surgical operation comprising opening the thoracic cavity.

Abstract: An IV injection site adapted to receive a blunt cannula. The injection site comprises a housing having a passageway extending inwardly from its outside end, and an elastomeric septum closely received in the passageway of the housing. The septum has a bore extending into the septum from the inside end of the septum but not through the septum, and a slit extending generally in the axial direction into the septum from the outside end of the septum to the bore. When a cannula is introduced through the slit of the septum, the elastomeric material of the septum is displaced into the bore of the septum to sealingly engage the cannula along the bore of the septum.

Abstract: A pouch for storing and dispensing liquid product in incremental amounts having a body portion and a pump tube portion, wherein the pouch can be held within a dispensing apparatus for squeezing the pump tube portion to release the incremental amounts. The improved pouch provides a pump tube portion made of thermoplastic polypropylene and butyl terpolymer rubber which can be readily sealed to the body without fitments or couplers. The improved pouch provides a built-in "duck bill" check valve assembly or alternatively an O-ring check valve assembly, which further reduces the number of parts required as compared to the prior art. The check valve assembly provides a socket connector for mounting a separate nozzle assembly to the check valve assembly. A break-off tab for initially opening the nozzle assembly for dispensing is provided.

Abstract: A safety sub is disclosed for retaining drilling fluid in the kelly or equivalent and other components of the mud system located above the drill string when pressure drops in the drill string, such as when the circulation pump is turned off in adding a new joint to the drill string. The safety sub includes a pressurized elastomeric cartridge having three or more depressions surrounding a central bore. When internal drilling pressure drops, the external pre-charge pressure closes the elastomeric material by creating a cusp opposite each depression, the cusps closing together. The metallic end pieces of the cartridge and parallel round connecting rods between these inserts are bonded to the elastomeric material during the molding process.

Abstract: A fuel tank and filler system for an internal combustion engine includes a fuel tank, a filler pipe extending into the fuel tank, and a check valve comprising a collapsible, normally open tube secured around the outlet of the fuel filler pipe within the tank. Fuel entering the tank passes through the filler pipe and collapsible tube unimpeded. The collapsible tube has sufficient flexibility, however, to collapse upon itself in the event that fuel begins to flow outwardly through the filler pipe, thereby preventing fuel from leaving the tank through the filler pipe.

Abstract: An IV injection site adapted to receive a blunt cannula. The injection site comprises a housing having a passageway extending inwardly from its outside end, and an elastomeric septum closely received in the passageway of the housing. The septum has a bore extending into the septum from the inside end of the septum but not through the septum, and a slit extending generally in the axial direction into the septum from the outside end of the septum to the bore. When a cannula is introduced through the slit of the septum, the elastomeric material of the septum is displaced into the bore of the septum to sealingly engage the cannula along the bore of the septum.

Abstract: Valve construction for use with an introducer assembly having a tubular member with a valve housing at one end thereof for receiving the valve construction to permit a medical instrument to be introduced therethrough. The valve construction is comprised of a body formed of an elastic material. The body has a cylindrical wall with an axially-extending bore. The body is provided with a first planar wall formed integral with the cylindrical wall and extending across the first end of the bore. The first wall has a centrally-disposed opening therein aligned with the bore. The body is also provided with a second wall formed integral with the cylindrical wall and extending across the second end of the bore. The second wall has a slit therein extending diametrically of the bore to provide first and second leaflets.

Abstract: A balloon includes a pair of overlying valve film strips disposed between a pair of overlying balloon films, which include neck and body portions. The valve film strips extend at an angle to a central axis of the neck portions, and valve seals formed in the valve film strips direct incoming gas from an inlet adjacent the neck, to an outlet between the body portions. Methods of assembling the balloons by forming the valve seams and neck seams without moving the balloon films or valve film strips is also disclosed.

Abstract: A check valve for bags containing goods such as rice or other grains or foods. The valve is used to discharge excessive air from the bag while preventing outside air from entering the bag. The check valve is constructed of plural plastic films joined together.

Abstract: A flow control valve assembly is provided which, when connected to a rotatable drill string, prevents drainage of fluid from a standpipe and rotary hose of a drilling rig when fluid flow through the drill string is interrupted. The flow control valve assembly comprises a tubular body member or housing having a fluid flow passage extensive therethrough and a flow control valve supported within the fluid flow passage of the tubular body member. The flow control valve, which is a self-contained pressurized unit, is provided with an annular pressure cavity so that the flow control valve can be selectively opened and closed in response to pressure differential between the annular pressure cavity and the pressure of fluid in the fluid flow passage of the tubular body member.

Abstract: A valve is provided for controlling fluid flow through a flow path, such as a conduit, duct or tubing. The valve includes at least two gate members which abut each other at a fluid-tight interface, so that fluid flow past or through the gate members is prohibited. The gate members are made of resilient elastomeric material which is compressible under fluid pressure in order to force the gate members apart at their interface and, thus, allow fluid to pass therebetween. The invention also includes a flow connector and valve combination for controlling the introduction of additional fluid into the single flow path created within the connector.

Abstract: The hemostasis valve gasket for use in an introducer which is integrally formed from an elastomeric material so as to exhibit resiliency and which is designed to close about small diameter objects such as a guide wire and about larger diameter objects such as a working catheter or guide catheter to prevent air or blood leakage. The gasket includes a cylindrical base with a central bore therethrough and a hollow convex domed shaped member projecting therefrom. The hollow dome shaped member terminates in a concave section. The concave section of the dome shaped member has at least one arcuate slit formed in the external surface which extends inwardly toward the hollow chamber to form a central, self-sealing passage aligned with the central bore of the cylindrical base member.

Abstract: The instant invention, is directed to a liquid dispensing system, especially for soap. The system comprises a housing, and a flexible pouch for storing liquid which is held within the housing and which has a discharge nozzle. A mechanism for pumping the liquid from the pouch is operatively associated with the housing. A valve mechanism for checking the flow of the liquid from the pouch includes a mechanism for laterally tensioning the pouch proximate its discharge nozzle so that the tension created is greater than a static pressure head of the liquid in the pouch but less than the dynamic pressure head created by the pumping mechanism.

Abstract: A pressurizable game ball and valve includes a hollow spherical game ball formed of a rubber material or the like defining a pair of shell halves bonded together to form a spherical ball. An aperture extends through the shell half surface and an annular flexible disk valve is secured to the interior portion of the shell half overlying the aperture. The disk valve responds to the pressure differential between the ball interior and the ball exterior to communicate pressurized air into the game ball for pressurization and to maintain a sealing contact over the aperture during normal use.

Abstract: A method and on board apparatus to recycle gasoline vapor emissions from the head space of a motor vehicle gasoline tank during refueling and operation of the vehicle. The apparatus comprises a canister to collect and store gasoline vapor from the head space and a vapor fan and sparger combination to retrieve vapor driven from the canister during a heating cycle and to dissolve the vapor in the liquid gasoline in the tank. The canister includes an adsorbent to separate the vapor from air and a vent valve to release air from the canister. Inside the canister is a ceramic heater, a temperature sensor and an adsorbed vapor sensor. A water drain permits condensed moisture to be released from the canister. The sparger comprises a microscopically porous body having a plurality of relatively large blind passages therein, the sparger body being entirely immersed in the liquid gasoline.

Abstract: An improved pressurized fluid check valve is provided which, when incorporated into a drill string powered by a rotary table of a drilling rig, prevents drainage of fluid from the stand pipe and rotary hose when the flow of fluid through the drill string is interrupted, such as during the attachment of another section of drill pipe to the drill string. The improved pressurized fluid check valve comprises (a) a tubular body member having a bore extensive therethrough between first and second end portions thereof, the bore having an enlarged medial portion forming a valve chamber; (b) a flow restricting assembly supported within the valve chamber of the tubular body member for selectively closing the valve chamber to fluid flow in a pressurized mode; and (c) a loading valve supported in an access bore formed through the side wall of the body member so as to communicate with the valve chamber.

Abstract: A check valve comprising a fluid pipe of a plastic film formed in a flat shape, and at least one valve body of a rectangular plastic film disposed in said fluid pipe, said valve body being bonded at the longitudinal edges thereof to the longitudinal edges of said fluid pipe, the tip end of said valve body in the fluid flowing direction being bonded to the inner side of one of the upper and lower flat surfaces of said fluid pipe to form a closed portion and an open portion, the base end of said valve body being not bonded to said fluid pipe to form openings between said valve body and the flat upper and lower surfaces of said fluid pipe, whereby a fluid can flow in a gap between one of said openings at the base end of said valve body and said open portion at the tip end thereof.

Abstract: The present invention relates to a valve element for a deformable container for liquid products, such as soap, skin preparations, etc., wherein the valve element is adapted to be located in close proximity to an outlet of the container. The valve element [1] has a yieldable domed section [1b] having at least one central slit or fissure [8]. The valve element [1] is arranged to prevent leakage through the slit or fissure [8] when a moderate pressure corresponding to the sum of the atmospheric pressure and the static pressure from the product inside the container is exerted on the domed section [1a] of the element but to permit the product to be dispensed from the container when the pressure in the container is increased, the increased pressure acting upon the yieldable domed section [1a] to expand the central slit or fissure [8].

Abstract: An escapement device to be disposed between a source of fluid and a receiver of fluid. The device allows fluid to escape from the source and then intermittently takes a fixed, measured quantity of such fluid and transfers that quantity to the receiver. The device is useful in intervenous infusion systems, automatic blood testing equipment, and like equipment where small but highly accurate measures of fluid are needed.

Abstract: A pressure-responsive valve exhibiting unusual restoring force includes an elastically deformable diaphragm having a plurality of non-intersecting, non-meeting, separate arcuate slits, each slit having a base which is intersected by at least one other slit, and each slit being out of intersecting relation with its own base.

Abstract: The invention relates to a container for flowable or otherwise extrudable materials, the container having a discharge barrier which comprises a dividing wall dividing the container space into an outer chamber which is in communication with a dispensing opening of the container and into a storage chamber in which the contents can be subjected to pressure for dispensing from the opening and can thereafter again be relieved of pressure. The dividing wall is formed with a membrane section having at least one valve opening which upon pressure loading of the membrane section from the side of the storage chamber opens against a restoring force exerted by a membrane mounting and which upon relief from pressure automatically closes again under the restoring force. The dividing wall is also formed with a holding element which is connected to the container in a manner that takes up manufacturing tolerances.

Abstract: A floor drain for hazardous environments comprises a grating, a housing, and an elastic one-way valve clamped by a flange between the grating and the housing. The valve has a tubular body with contacting parallel wall portions which open when a liquid enters the valve. The valve closes when there is no pressure at the inlet. The valve closes more tightly in the event of elevated down stream pressure, positively preventing the escape of gas. An existing, unprotected drain can be retrofitted with the one-way valve.

Abstract: A flat, rectangular box 4 formed of cardboard contains a bag 18 of multi-layered foil material. A tube 24, which is disposed in the interior of the box in the transport condition of the package and can be removed from the box interior through an opening 10 which is closed by a tear-off strip, which is connected in liquid-tight manner to the bag 18 by a connecting piece. An outlet 36 provided at the free end of the tube is controlled by a pressure relief valve, which is provided in the tube and opens in the direction of the outlet. The walls of the narrow sides of the box each have a longitudinal fold along which these walls can fold outwards when the broad sides of the box are pressed together in order to empty the bag filled with a fluid, e.g. coffee extract. The one-way package is particularly suitable for use in a beverage vending machine in place of the storage containers employed until now.

Abstract: Various embodiments of pinch valves include an annular rib 5 formed on the inner walls of an elastic tube 4. The annular rib 5 is obliquely oriented in the elastic tube 4 and permits passage of fluid therethrough when the tube 4 is not deformed. Upon selective deformation of the tube 4 by choking means 6,7, the annular rib 5 prevents passage of fluid through the tube 4.

Abstract: A bleeder kit for use in bleeding a master cylinder in a hydraulic brake system is disclosed wherein the kit includes a number of unidirectional flow valves and a corresponding number of flexible conduits suitable to connect a valve to each outlet port on the master cylinder housing, with a flow conduit connected to each valve so as to unidirectionally direct brake fluid from the master cylinder bore into the master cylinder reservoir upon pressurization of the brake fluid within the master cylinder. A hose clip is releasably mountable on the reservoir and operative to guide the discharge ends of the flow conduits into the reservoir.

Abstract: An automatic air deflation valve is provided for use with a sphygmomanometer type blood pressure measuring instrument. The valve comprises a housing having an air flow channel extending through the longitudinal extent thereof and at least one air deflation port extending outwardly from said channel. The port includes a deformable diaphragm supported only on its outer edges and having a central aperture extending through the thickness thereof. The diaphragm is adapted to deform in accordance with the air pressure applied against it from said channel to automatically adjust the size and shape of said aperture, thus producing a constant air deflation rate therethrough.

Abstract: An air bag device designed to protect passengers in a vehicle. In the device, an inflatable gas bag is inflated by a gush of high pressure gas which is discharged from a gas supply source through a gas discharging pipe and guided by a housing. The housing has defined therein large openings to introduce ambient air, and has mounted, at the region where the inflatable gas bag are mounted, gas permeable supporting plates and valve members urged against the gas-permeable supporting plates. The gush of the high pressure gas discharged through the gas discharging pipe sucks in and mixes with the ambient air introduced through the large openings in the housing. The resultant air-high pressure gas mixture passes through the supporting plates, opens the valve members and then, flows into the inflatable bag to inflate the latter.

Abstract: An air-precluding flow-regulating device for maintaining a predetermined flow rate through a conduit from a site of higher to a site of lower elevation, comprising: a section of normally collapsed soft resilient tube forming at least a part of the conduit and having a length at least as great as the variation in back pressure expressed in head at the site of lower elevation, said tube being disposed to contain the ambient pressure level within its length.

Abstract: A toothbrush having an elongated handle provided at one end with a head comprising a surface from which bristles project in the usual manner. Within and extending longitudinally of the handle is an elongated cartridge chamber terminating at the head end of the handle with an opening communicating at one end with the chamber and at its other end with the bristled surface. The cartridge chamber is adapted to receive therein an elongated, tubular, flattenable, dentifrice cartridge insertable through an opening at the end of the chamber remote from the head. A dispensing member slidable longitudinally of and within the chamber is engageable with the cartridge to flatten such cartridge progressively from the remote end of the handle toward the head end thereof, thereby dispensing the dentifrice into the bristles of the toothbrush through an elastomeric, tubular cartridge tip disposed in the opening in the toothbrush head and extending beyond the bristled surface.