Abstract: A stopcock includes a housing and a sealing insert. The housing includes a first surface, a first blind hole defined in the first surface, and a through hole defined in a first bottom surface of the housing in the blind hole. The through hole tapers toward the bottom surface. The sealing insert includes a first engaging portion and a second engaging portion connected to the first engaging portion. The first engaging portion is engagingly received in the blind hole. The second engaging portion is engagingly received in the through hole.

Abstract: An individual hydration unit includes a bag having a first chamber and a second chamber, the first chamber is connected with a first hose and the second chamber is connected with a second hose. A regulator is connected to the first and second hoses and connected to a third hose. The regulator includes a cylindrical body which has a first passage, a second passage and a third passage. An operation rod is rotatably inserted in the body and includes two first paths, two second paths, a third path and two fourth paths. The first, second, third and fourth paths are in communication with each other. By rotating the operation rod, the first, second and third passages are controlled to be opened and/or closed so as to mix the liquids in the two chambers as desired. A connection assembly is attached to the body for convenience of carried.

Abstract: The present invention relates to a multilayer protective enclosure for protecting humans, animals or perishables from hazardous agents in the environment. The enclosure contains a porous adaptive membrane structure that has movable membranes with insertable protrusions. The structure can be made to change its gas, liquid or particulate permeability in response to surrounding environmental conditions. Hence, the enclosure is highly breathable in a non-hazardous environment but impermeable or only semipermeable in a hazardous environment.

Abstract: The present invention relates to a porous adaptive membrane structure that has movable membranes. The structure can be made to change its gas, liquid or particulate permeability in response to surrounding environmental conditions. The application of this invention is includes protective apparel that is comfortable to wear wherein the level of protection provided is based on conditions in the environment. Hence, the protective apparel is highly breathable and comfortable in a non-hazardous environment but impermeable or only semipermeable in a hazardous environment.

Abstract: A medical valve has a first housing portion and a second housing portion capable of mating with the first housing portion to form an interior. The medical valve also has a valving element within the interior. The first and second housing portions have mating longitudinal snap-fit structures for longitudinally mating the first housing portion to the second housing portion. The first and second housing portions also have mating rotational snap-fit structures for substantially preventing the first housing portion from rotating relative to the second housing portion when the longitudinal snap fit structures are mated.

Abstract: A main valve body has a first passage, a second passage, and an opening which intersects the first passage and the second passage. A main plug body is rotatably inserted into the opening, and has an upper section into which a handle is inserted, and a lower section having a through-hole. An O-ring is seated on an annular groove which is provided in the vicinity of the through-hole. A seal-retaining member for preventing the O-ring from projecting is fitted to an expanded diameter section of the first passage. One end of the seal-retaining member tightly contacts an end surface of the expanded diameter section. A curved surface corresponding to an inner circumferential surface of the opening is formed at the other end of the seal-retaining member.

Abstract: To provide an electromagnetic valve where an end cover can easily be fitted into a valve hole, and a valve body can be small-sized.

Abstract: A rotatable stopcock for a plug-type coupling with an angled piece for connecting fluid lines. The stopcock including a turning knob portion and an integrally formed hollow pin portion. The knob portion includes two opposing ring segments having detent catches that positively engage a flange ring formed on the coupling housing wall. The pin portion is dimensioned to be received into a contact hole of the plug-type coupling such that rotating the stopcock after insertion causes the hollow pin portion to regulate the fluid flow through the plug-type coupling.

Abstract: Disclosed is a pin valve featuring a pin that extends less than the entire length of the valve body. As a result, the valve body bore which houses the pin does not extend through the entire body. The pin is held in place through one of several retaining devices disclosed, including a compression ring. The retaining device is placed about the pin and within the valve body.

Abstract: The invention relates to a rotatable stopcock inserted into a male coupling (2) having a 90° offset connecting piece (3) for connecting to fluid lines. A contact hole (6) for receiving a female pin (8), which is connected to the stopcock (1) and which is provided with a continuous hole (9) having a 90° angle curve for connecting the coupling housing (5) to the connecting piece (3), is situated along the straight extension of the male coupling (2), and the end of the said female pin is connected to a turning knob (7) while forming one piece. In order to be able to securely fix the stopcock (1) to the coupling housing (5) after insertion into the contact hole (6), the housing wall (10) comprises a peripheral flange ring (11) on the contact hole (6). For the same purpose, two ring segments (13) located opposite one another are shaped onto the front wall (12) of the turning knob (7).

Abstract: A valve member for use in a medical manifold valve assembly, wherein the valve member comprises a valve stem having a handle formed thereon for rotating the valve stem within the bore of a manifold. The valve stem has at least one pathway therethrough that can be aligned with channels through the manifold to allow fluid to flow through the valve stem pathway. The valve stem comprises at least two grooves circumscribing the valve stem, one groove above and one groove below each pathway opening. These grooves are preferably fitted or molded with a flexible material to form seals. The diameter of the valve stem above and below the area between the grooves is less than the diameter of the valve stem between the grooves such that the valve stem wall above and below the area between the grooves does not contact the bore wall.

Abstract: In an electromagnetic valve, a seat member has a protruding portion having two parallel surfaces provided in the seat member. When the seat member is fixed to the base member by inserting molding, the two parallel surfaces of the protruding portion may be put between projecting portions of a pin of a molding die. As a result, the fluid passage of the seat member may be easily positioned to correspond to an opening of the base member. Further, after molding, the seat member may be prevented from rotating in the base member since the parallel surfaces are partly covered by resin of the base member.

Abstract: A container filling machine and removable valve assembly having a liquid retention bowl and at least one filler valve assembly depending therefrom, the bowl having at least one bottom opening, a periphery around the opening, and a shoulder at the periphery, the filler valve assembly extending through the opening and including an upwardly protruding vent tube in the bowl, a valve retention clip on the vent tube and having at least one abutment within the bowl aligned with the shoulder to be engageable with the shoulder to prevent unwanted valve removal from the bowl, the retention clip being accessible from outside the bowl and having sufficient resilient flexibility to move the at least one abutment away from the shoulder for release of the filler valve assembly from the bowl.

Abstract: A device for interconnecting hydraulic or pneumatic components, especially electromagnetically actuated valves, each valve having on its outer surface the male or female half of a snap-together connector. The male half is provided with a radial stop that extends into the female half and is secured there by at least one mechanism that locks into place behind it. A locking ring is accommodated in and rotates around the central axis of the female half of the device and is provided with radially inward-projecting locking segments rotated by an outward-extending lever around a prescribed angle out of an assembly position and into a locking position. Stops on the male half in the form of several radially outward-projecting locking cams are distributed at prescribed angles and separated by gaps at least as wide along the circumference as the locking segments. The gaps between the locking segments are at least as wide along the circumference as the locking cams.

Abstract: The invention relates to a disassemblable cock with which a plug rotatable in the cock housing is releasably latched with the housing. The plug can be moved by tension or pressure from a working position into an intermediate position in which the sealing surfaces of the plug and of the cock housing are located out of bearing yet the plug remains connected to the housing (FIG. 1).

Abstract: A valve for dispensing fluid to and from a container. The valve includes a housing defining a flow passage extending longitudinally therethrough. A poppet member is telescopically mounted in the flow passage of the housing and is telescopically movable between an open position and a closed position. The poppet member has a proximal end portion that includes a second retaining structure that cooperates with a first retaining structure of the housing to provide a snap fit connection for retaining the poppet member in the housing. The snap fit connection allows the poppet member to be mounted in the housing by inserting the poppet member through a front end of the housing member.

Abstract: A control valve for an air pressure bar includes a valve cap having an annular groove in a outer surface, a valve body having an annular ridge and an aperture in an annular wall, a valve base and a pin rod. The aperture producing elasticity to let the valve body combined tightly with the valve cap and a stepped notch in an annular wall below the upper center cavity of the valve body form an air passageway for gas to flow through. The valve body and the valve base are combined together by an annular ridge on an inner surface of a lower center cavity of the valve body and an annular groove in an outer surface of the valve base. The valve base has a stop on an inner surface of a center hole to stop a bottom of the pin rod not falling out of the valve body.

Abstract: The present invention relates generally to a device for controlling fluid flow. The device includes a housing having a front end and a back end. The housing defines a flow passageway extending longitudinally between the front and back ends. A first retaining structure is connected to the housing and positioned within the flow passageway. The device also includes a valve mechanism for opening and closing the flow passageway of the housing. The valve mechanism includes a poppet member mounted within the flow passageway. The poppet member includes a first end opposite from a second end. The first end includes a second retaining structure that cooperates with the first retaining structure of the housing to provide a snap fit connection for retaining the poppet member within the housing.

Abstract: A pressure regulator apparatus has a pressure regulator mechanism which includes first and second housing portions, each made of substantially rigid material, such as a PVC polymer, and each housing portion having a passageway therethrough. One of the housing portions has a plurality of niches formed therein while a second housing portion has a plurality of raised wedged members formed thereon so that the pressure regulator mechanism can be placed in the two housings which can be driven together to drive the housing wedge members of one portion of the housing into the niches of the other portion of the housing. Since both housings have a cylindrical portion, the wedge members are sized to extend above the inner lip of the other housing portion to thereby require a forced expansion of the substantially rigid housing portion to drive the wedge members into the locking niches in the other housing member which simultaneously locks the pressure regulator mechanism into position in the housing.

Abstract: A stopcock comprises a hollow barrel which receives in a rotatable manner a co-operating tap. A section of the tap is formed with holes which allow communication between selected hollow spigots extending from the barrel. A further section of the tap of larger diameter than the section is formed with indents which engage with detents formed on a large diameter section of the barrel to provide a positive indication when the tap is rotated within the hollow barrel to one or more selected positions.

Abstract: A device for bleeding or draining a duct comprises a member for closing a passage that opens out into the duct, the member having a helical groove formed in its peripheral surface enabling it to be moved in the passage by screwing and unscrewing on a helical rib of a collar embedded in the material defining the passage.

Abstract: The present invention relates to pressure adjustment valves for circuits for the manual administration of gas mixtures in the medical field, such valves including a body that can be interposed on the circuit of a manual respiration unit and which has an intake port and a discharge port. Means are provided in the body of the valve which means can be positioned to vary the useful passage section of the gas stream within the valve in order to modify the resistance created by the adjustment valve to the gas steam.

Abstract: A suction control valve is disclosed which includes a primary suction device access and an ancillary suction device access. The valve includes an actuator which is linearly movable between a first position in which the primary access is closed against suction pressure therethrough, to a second position in which the primary access is open to suction pressure therethrough. The valve also includes a rotatable valve core which can be rotated by the actuator to a third position to disable its linear movement and to open the ancillary access port. When the actuator is in the first position, atmospheric air can pass through the valve and into the suction pressure source in such a manner that a "hissing" auditory signal is generated, indicative of the presence of suction pressure within the valve. When the actuator is in the second or third positions, the "hissing" is prevented.

Abstract: The multi-ported valve assembly includes a valve body having a plurality of individual ports disposed in a common plane and a common port having its axis disposed perpendicularly to the common plane of the individual ports. The valve assembly includes a selector means having a body portion designed to engage the valve body and provide selective communication between one of the individual ports and the common port. The selector means includes a handle to facilitate rotation thereof and selection of a desired fluid flow passageway as well as indicator means to indicate direction of fluid flow. Also provided are sealing means to prevent external leakage during use and suitable connecting or coupling means to provide connection especially in devices and apparatus used in ophthalmic surgical procedures.

Abstract: A draincock assembly is designed so it may be molded with the radiator tank. The draincock assembly includes a drain for draining fluid from the heat exchanger. The drain includes a cam surface which receives a pin of a draincock therein. The draincock moves rotationally about and axially along a longitudinal axis defined by the drain between open and closed positions in a path defined by the pin moving along the cam surface. A detent is molded to the cam surface and prevents movement of the pin of the draincock therepast unless a rotational force is applied to the handle of the draincock. An O-ring at the end of the cylindrical body of the draincock provides a seal wherein no fluid may exit through the drain nipple until the O-ring moves past the drain nipple, creating a drainage path from the radiator tank.

Abstract: The invention is a valving device for use in laparoscopic surgery. The device generally has a valve housing having a wall defining a common channel. The channel includes at least first and second apertures extending through the channel wall to allow fluid communication to and from the channel. The invention also includes a laparoscopic probe having a channel created by a wall defining a first open end and a second open end, as well as a valve for trapping debris positioned within the channel first open end.

Abstract: A fluid flow control valve of the ball type has a unitary body moulded in an elastomer and defining inlet and outlet passageways and a spherical cavity accommodating a plastic, ball-shaped closure member. The closure member is located in the cavity by forcing it, together with its actuating spindle, through a bore formed in the body until it is sealingly located, as a snap fit, in the cavity, during which process the bore is resiliently deformed outwardly but subsequently resiles into contact with the actuating spindle. The valve may, thus, simply have a pair of injection mouldings and, relative to prior ball valve constructions, is therefore simpler and more economic to manufacture. The body is integrally formed with a peripheral external recess whereby it may readily be sealingly engaged, simply as a snap fit, in, for example, an aperture formed in the base or a compressed sir filter bowl, the valve acting as a manual drain valve.

Abstract: A tubular insert is adapted to be secured into an opening in the vessel and is formed with an internally threaded section adapted to receive a closure. The closure is a subassembly which includes a core hosuing having a threaded section threadedly engaging the insert and an internal threaded section and formed with a valve seat at its lower end. A core body is threadedly disposed in the housing and a valve element engages the seat with a compression spring inbetween the body and valve element. A stop is provided on the insert and retaining means are provided on the housing so that when the core housing is unscrewed, it is loosely retained in the insert indicating to everyone that the vessel is depressurized and the metal of the vessel can be heated and melted without any fear of explosion.

Abstract: A valve has a housing, a valve spindle projecting outward from the housing and centered on and rotatable about an axis, and an actuating handle. Radially inwardly projecting and axially extending ridges are formed in the handle. An overload protecting coupling is formed by a sleeve fitted over the spindle and formed unitarily with a skirt having an inner surface spaced radially outward from the spindle and an outer surface formed with radially outwardly projecting and axially extending ridges meshing with the ridges of the handle. The skirt is formed with a plurality of axially inwardly open slots subdividing it into a plurality of ridged segments and it is elastically inwardly deflectable. Thus this sleeve forms a slip coupling that allows the handle to rotate the valve spindle until same is arrested, for instance at the end of its stroke, and thereafter turn independently of the spindle to prevent overloading it.

Abstract: A stopcock with a locking connector protective assembly for selectively controlling the passage of sterile medicinal fluids from a plurality of sources and comprising a body having a plurality of input arms with male or female locking connector tips, an output arm with a male locking connector tip, a rotor located inside the body and having a handle and rotatable about an axis in the body and having a rotor lumen and having channels or holes that may be aligned with the arm lumens as indicated by pointers. A self-sealing injection port is provided which covers the rotor lumen. A locking connector protective assembly is mounted on the input arms to prevent touch contamination and may be retrofitted to current stopcocks, and retained by the locking connector tip. A telescoping resilient coil variably expands to enclose the locking connector tip when the tip is not in use and retracts sufficiently to allow access to the locking connector tip for connections to a complementary locking connector tip.

Abstract: A valve for a urine collection bag has a base plate with a valve housing within which a valve member is displaceable. The valve member is hollow and has an aperture that aligns with an aperture in the base plate and bag when the valve member is in its lower position. The valve is opened by squeezing a finger plate on the valve member down towards a lower finger grip on the base plate. In the open position, the valve member can engage a coupling which slots between the arms of a fork projection on the base plate. The valve is closed by squeezing the finger plate up towards an upper finger grip on the base plate.

Abstract: An oil drain valve assembly is provided for draining oil from an engine crankcase such as in a small internal combustion engine. The drain valve assembly includes an adaptor, an outer sleeve assembly, and interlocking for permitting opening of the valve assembly by relatively limited counter-clockwise rotation and subsequent pulling of the outer sleeve assembly relative to the adaptor. The interlocking means is formed of a pair of diametrically opposed J-slots disposed on the upper end of the outer sleeve assembly and co-mating locking pins disposed on the exterior surface of the adaptor. The locking pins are engageable with detents formed on the J-shaped slots to define a closed or sealed position.

Abstract: A thermostatic valve is disclosed which has a valve disk adjusted by a thermostatic working element. A valve seat and a ventilating valve includes a cage mounted on the valve seat or the valve disk. The cage includes a passage opening and a valve body serving as the closing element for the passage opening. The cage is provided with an entry opening for the valve body which is bordered by at least one elastically deformable tongue which bounds a cross-section of the entry opening which is smaller than the diameter of the valve body.

Abstract: An inline type check valve having a tubular body, a mushroom or umbrella-shaped piston axially, movably mounted in the tubular body, a coil spring disposed behind the piston in the body, and a hollow disk axially removably fixed to the body. Both the body and the disk made from a synthetic resin reinforced with fibers and resiliently hooked in each other. The piston has its periphery provided with a plurality of grooves to increase the cross-sectional area for fluid flow through the valve.

Abstract: An adjustable vent nozzle has two nozzle members turnable relative to one another, the first nozzle member having an inlet opening for communicating an interior of the nozzle with ambient atmosphere and a lower surface provided with a guiding, the second nozzle member having an outlet opening with a passage which is open in the outlet and formed to guide the guide of the first nozzle member so that in an assembled condition when one of the nozzle members is turned relative to another of the nozzle members the guide is guided in the air passage. In a predetermined angular position of the nozzle members relative to one another they can be fixed relative to one another to define a predetermined length of the passage between the inlet opening and the outlet opening and therefore to adjust an air supply through the nozzle into an interior of a device to be vented and communicating with the outlet opening.

Abstract: A stop valve has a valve body, a stem, and a handle. The valve body has a cylindrical cavity, which has a side wall and a first end wall, an inlet opening and an outlet opening, both of which communicate with the cylindrical cavity. The outlet opening has a side wall that intersects with the cylindrical cavity side wall; the intersection of which is chamfered. The valve stem has a cylindrical cavity portion which is located in the valve body cylindrical cavity and a handle portion which protrudes from the cylindrical cavity portion through an opening in the first end wall. The stem has an outlet seal ring and a stem seal O-ring. The stem seal O-ring is retained on the stem by a flange portion having a diameter slightly greater than the inside diameter of the O-ring. The stem has retaining ears to retain the stem in position in the valve body independently of the handle.

Abstract: A vacuum dump valve comprises a housing having a cylindrical cavity therein communicating with ambient pressure and with a vacuum line, and a plunger in said cavity having a pair of diametrically spaced tabs acceptable in a pair of slots in said housing to limit travel and guide the plunger relative to the housing.

Abstract: A drainage tap can be readily fixed in a face-to-face manner to the wall of a plastics drainage bag and is easily operated by a user. The tap has a body and a valve member therein, and the latter is held within the body by engagement of an external rib on the valve member in a slot which extends into a flange of the body.

Abstract: A quarter-turn valve comprises a housing formed with a cylindrical socket, and a cylindrical plug receivable within the socket and having a bore extending diametrically through the plug for establishing communication between the inlet and outlet nipples in the open position of the plug, but terminating the communication when the plug is turned to its closed position one-quarter turn from the open position. The plug is formed with a finger-piece projecting from the housing for manually rotating the plug to its open, closed or an intermediate position. The plug is closed at its bottom, such that the fluid flowing through the bore subjects the plug to a fluid pressure which is balanced on all sides of the plug, thereby facilitating turning of the plug and preventing its accidental ejection when subjected to a high pressure.

Abstract: A meter box including a bottom tray having a floor, side walls, a collar releasably connected to the top of said tray, and a lid releasably connected to the top of the collar. All of the parts fit together and are releasably secured in this position without the need for nuts and bolts or the like. Also, except for removal of the lid, the parts may be connected and disconnected without the need for tools. The inlet valve is also releasably secured in place and may be assembled and disassembled from the remainder of the meter box without the use of tools.

Abstract: A metering apparatus and system for controlling the administration of IV fluids having a valve housing with a valving chamber therein. A rotatable valve body member is positioned within the valve chamber and a valve passageway of variable cross-sectional area is provided at either the chamber or on the valve member. The effective area and length of the valve passageway interposed between the inlet and outlet to the valve is adjustable to regulate flow by moving the valve body relative to the valve member. Various accessories can be selectively attached to the basic valve configuration including a backplate which facilitates single-handed operation and an optional cover plate which may be secured to the backplate to provide security from patient tampering. In the preferred embodiment the valve housing and internal valve members are fabricated from dissimilar plastic materials of different hardness to improve the sealing therebetween.

Abstract: A non-crazing, two piece stopcock valve which comprises a body defining a bore therethrough and a core member disposed within the bore. A reduced contact sealing surface is defined around a portion of the core, the sealing surface providing a seal between the core and the bore. The valve further comprises a flange member which extends around the entire outside circumference of the valve body. Such a valve is capable of handling fluids having pressures of at least 1000 psi, and is resistant to crazing and microcracking during use or storage while allowing smooth rotation of the core within the bore.

Abstract: A metering apparatus and system for controlling the administration of IV fluids having a valve housing with a valving chamber therein. A rotatable valve body member is positioned within the valve chamber and a valve passageway of variable cross-sectional area is provided at either the chamber or on the valve member. The effective area and length of the valve passageway interposed between the inlet and outlet to the valve is adjustable to regulate flow by moving the valve body relative to the valve member. Various accessories can be selectively attached to the basic valve configuration including a backplate which facilitates single-handed operation and an optional cover plate which may be secured to the backplate to provide security from patient tampering. In the preferred embodiment the valve housing and internal valve members are fabricated from dissimilar plastic materials of different hardness to improve the sealing therebetween.

Abstract: Apparatus is provided for intravenous administration of a series of solutions for cardiopulmonary resuscitation. Each solution is in a separate syringe held in place on a base plate. All syringes are connected at the same time to a single stopcock with multiple inlets and a single outlet for connection via tubing to a needle in the patient's vein. A selector handle on the stopcock is rotated to a particle inlet to select the solution in a particular syringe. The assembly eliminates the changing of syringes, the confusion and errors, and the need for assistance of the prior apparatus and speeds up the administration of the medications to make the treatment more effective, and, more importantly, reduces the risk of bacterial contamination.

Abstract: A valve for regulating fluid flow between a pair of angularly disposed passages. A valve body closely receives a valve member therein and both components are preferably formed of a polymeric material for corrosion protection. The valve member includes first and second grooves spaced therealong, and has a handle disposed at one end thereof. The first groove is of a generally elliptical conformation having a pair of arcuate portions disposed axially and approximately 180.degree. circumferentially from each other. A pair of interconnecting portions extend between the arcuate portions. A stiffener is included in the valve member for limiting deformation and deflection thereof during high fluid pressure conditions.

Abstract: A draincock and drain hole for a motor vehicle radiator have a cooperative relationship that effects sealed closure of the drain hole with an o-ring and both locks the draincock in its closed position and retains same in the drain hole in an open position.

Abstract: A device for metering the flow of a liquid medium passing therethrough comprises a plastic stem member having a cylindrical metering drum element projecting into and rotatively engaged in liquid tight relation with the cylindrical wall of a bore chamber in a body member to rotatively mount the stem member therein. A diametrically slotted headed stud projecting endwise from the drum element is contracted and inserted through a bore opening in the end wall of the chamber in the body member to cause the head end of the stud to snap-lock behind the chamber end wall and thus secure the stem and body members together in assembled rotative relation.

Abstract: A device for controlling the flow of a liquid medium passed therethrough comprises a cup-shaped plastic body member having a bottom end wall with a bore opening and a side wall forming with the bottom end wall a chamber through which the liquid medium is passed. A plastic stem member is journaled in the bore opening of the body member to rotatably mount the stem member thereon. The stem member overlies and closes off the open top end of the chamber and has a flow control element located within the chamber for controlling the flow rate of the liquid medium therethrough, as determined by the selected relative rotative position of the member. The stem member is snap-locked in assembled relation with the body member, and the two members are provided with actuating arm means including a radially outward projecting lever arm on the stem member for rotating the members relative to one another.

Abstract: A liquid flow regulator has a housing formed by two parts that snap together. The housing defines an axial bore, an inlet, an outlet and a plurality of axial grooves opening endwise of the inlet and laterally of the housing into the bore. The grooves taper axially so that the cross-sectional area of each groove gradually decreases from the inlet to nothing at a pont where the groove merges with the bore. The grooves have different axial lengths. An elastomeric sock fits within the bore. Means for expanding the sock radially outward into sealing engagement with the housing adjacent the bore is axially movable within the bore. Flow through the grooves and the bore is regulated by the axial position of the sock expanding means and the minimum cross-sectional area of the tapered, axial grooves at the axial location where the sock seals the bore. Axial adjustment of the sock expanding means sequentially opens and closes passage from the grooves through the bore to the bore outlet.