Abstract: A fire hose clamp that comprises a U-shaped guide structure for slidably supporting a movable jaw; a manual rotary screw extends from the movable jaw through a nut in the central wall of the U-shaped structure, whereby rotation of the screw moves the jaw along the guide structure. A stationary jaw is arranged in the path of the movable jaw, such that the two jaws exert a squeezing action on a fire hose extending through the jaw space; the hose fabric is flattened to shut off the flow of water through the hose. Preferably the jaws have curved surfaces that tend to iron away any creases or bulges in the hose fabric during the hose-squeezing operation, thereby assuring a more consistent water shut-off action.

Abstract: The Deflectable Sleeve Type Valve is comprised of a metallic housing retaining therein a circular insert with fluid conducting ports, where said circular insert is surrounded by a flexible tubular sealing member. Said housing also retaining a plunger which, together with suitable actuating devices, is capable of readily displacing said tubular sealing member towards a port in said circular insert and therefore capable of interrupting fluid flow through said port.

Abstract: An elastomeric sleeve is placed under axial compression in a pinch valve assembly. The axial compression of the sleeve eliminates any crevices with end members that engage opposed end walls of the valve body. Further, axial compression extends cycle life of the valve by maintaining the sleeve in a non-tensile relationship. Mechanical gripping of enlarged flanges defined at opposed ends of the sleeve is also enhanced through axial compression of the sleeve. A positive, visual indication of valve open and closed positions is provided by an indicator stem extending outwardly from an actuator body. In an alternate embodiment, the flanges are reinforced. Additionally, a casing member is interposed between the valve body and sleeve for ease of replacement and maintenance. In still another embodiment, a vent opening in the valve body eliminates pneumatic closure forces on the elastomeric sleeve that can arise when the pinch valve is heated.

Abstract: An elastomeric sleeve is placed under axial compression in a pinch valve assembly. The axial compression of the sleeve eliminates any crevices with end members that engage opposed end walls of the valve body. Further, axial compression extends cycle life of the valve by maintaining the sleeve in a non-tensile relationship. Mechanical gripping of enlarged flanges defined at opposed ends of the sleeve is also enhanced through axial compression of the sleeve. A positive, visual indication of valve open and closed positions is provided by an indicator stem extending outwardly from an actuator body. In an alternate embodiment, the flanges are reinforced. Additionally, a casing member is interposed between the valve body and sleeve for ease of replacement and maintenance. In still another embodiment, a vent opening in the valve body eliminates pneumatic closure forces on the elastomeric sleeve that can arise when the pinch valve is heated.

Abstract: The movable sleeve type valve is comprised of a two piece metallic housing retaining therein a cylindrical insert with fluid conducting ports, where said cylindrical insert is surrounded by a flexible tubular sealing member. Said housing also retaining a sleeve which, together with suitable actuating devices, is capable of readily displacing said tubular sealing member towards said cylindrical insert and therefore capable of interrupting fluid flow through said port.

Abstract: A clamp apparatus useful for controlling the flow of fluid through a flexible conduit which comprises: a resilient pad element adapted to aid in at least partially occluding the conduit; and a force system structured to be moved to at least partially occlude the flexible conduit such that when the force system is activated the flexible conduit contacts both the resilient pad element and the force system and the resilient pad element moves in response to the activation of the force system, provided that the force system is adapted to maintain the flexible conduit in at least one state of partial occlusion.

Abstract: The invention is concerned with valves generally and more particularly with valves with the type known as pinch valves being those valves which are closed or opened by the action of pinching or releasing a resiliently deformable sleeve. The invention is characterized principally in having a light weight open-sided box section valve housing combined with a pair of substantially cylindrical sleeve supports which allow the use of a resilient sleeve which incorporates no internal bracing.

Abstract: A marking device for automatic marking of threaded joints tightened by a pneumatic power wrench, wherein a marking liquid container (48), a metering pump (37), a pressure air supply valve (31) and a marking liquid outlet passage (55) form a unit detachably clamped onto the power wrench housing (10). Pressure air communication passages (24, 25) feed the marking device directly with pressure air from the air supply passage (13) of the power wrench. The marking liquid container (48) comprises a replaceable collapsible tube which is pressurized all around in a pressure air supplied chamber (28). The single stroke metering pump (37) delivers for each stroke a well defined quantity of marking liquid to the outlet passage (55) which is formed by a fine hose made of plastic material with non-adhesive properties relative to the marking liquid. A pressure air operated feed valve (62) is arranged to prevent back flow and other uncontrolled flow of marking liquid through the outlet hose (55) by compressing the latter.

Abstract: A flexible tubing occluding device is provided for releasably occluding flexible tubing. The tubing occluding device includes housing that is adapted to receive the tubing and defines a tubing occluding surface against which a transverse section of the tubing is transversely urged and compressed when in an occluded position. A wedge-shaped tongue member is provided for urging the transverse section of the tubing against the tubing occluding surface. The geometry of the tubing occluding surface and the wedge-shaped tongue member cooperate to distribute a relatively low amount of force at the center portion of the occluded tubing and a relatively large force at the distal ends of the occluded tubing, utilizing the mechanical advantage of the wedge-shaped tongue member.

Abstract: A device is disclosed for effecting shut-off of flow through a tube formed of flexible material. The device includes a block having a bore through which the tube extends and having a resilient sleeve surrounding the tube in the bore and further including a plunger adapted to project through an aperture in the bore wall to engage the resilient sleeve and pinch the tube within the sleeve.

Abstract: A sheet with inlet and outlet ports forms a housing, with a flow tube disposed between the ports. In a preferred embodiment, a plurality of arms affixed at one end to the housing are adjustably spaced by a threaded tapered nut which mates with the other end of the arms. The flow tube passes between the arms and is constricted by the arms as the nut is advanced. The thread pitch, the degree of taper, and the point where the tube crosses the arms all determine the rate of constriction. In a further preferred embodiment the tube passes through a transverse indentation in the arms and is bonded thereto. In another preferred embodiment the housing is adapted to removably mount on an automatic flow sensing and adjusting module, which engages the tapered nut to adjust the flow rate through the tube.

Abstract: The valve has flexible resilient tubes which respectively communicate with the fluid supply conduits and which are pinched by control members to control fluid flow. Each tube has a reduced-diameter center or neck portion intermediate its ends which is engaged by the control member. The internal cross section of the neck portion is circular when relaxed and when pinched closed does not require any greater cross-sectional space than do the tube ends. Single-control and dual-control embodiments are disclosed. In the dual-control embodiment the two tubes are carried in a single cartridge assembly which is removable as a unit.

Abstract: An occluder valve for closing off the flow of fluid in a flexible plastic tube includes a linearly movable pinch member coupled to a rotatable shaft through a nut. The shaft is coupled to an electric motor through an electrically energizable clutch. The output shaft of the motor is mechanically constrained to rotate in only one direction. The motor, coupled through the clutch, rotates the shaft causing the pinch member to move linearly away from the tubing. A torsion spring opposes this rotation. Once opened the valve will stay opened as long as the clutch is energized as the shaft of the motor will not rotate in a closing direction. To close the valve, the clutch is deenergized and the torsion spring moves the pinch member linearly against the flexible tubing closing it off.

Abstract: A corrugated fibreboard container of tube-and-cap construction has two-walled plastic lining and a bottom side-wall discharge hose. A metal lid-mounting flange in the top end-cap receives a conventional drum lid with vent opening and bung opening threaded to receive a standard plug or a discharge pump fitting to facilitate pumping from the top. A band of reinforcing panels of hardboard mounted on corrugated fibreboard is strapped to the container tube wall and the whole assembly is strapped to a wood pallet for ease of transportation and handling.

Abstract: The invention relates to a dosing device for fluids used in infusion or transfusion systems comprising a flexible fluid line transversing a housing to compress the fluid line. The device comprises a housing and an elastomeric tubular element having leading and trailing sections which traverses said housing to interconnect respective ends of said fluid line. The tubular element comprises a thicker portion between the leading and trailing sections whereby the thicker portion protects against longitudinal displacement of the housing. A pressing element engages the tubular element outside the region of the thicker portion.

Abstract: This invention relates to a controller and in particular to a liquid flow controller for intravenous injection comprising a first cylindrical member provided at one end surface with a pair of threaded tongues which extend outwardly therefrom and form a recess thereof, a flange being properly disposed on said end surface, a second cylindrical member being hollowed and threadedly engaged with said first cylindrical member, an annular member provided at a first end surface with a hole being received within and secured to said second cylindrical member, a controlling rod being inserted into and located within said annular member, a rubber hose partially surrounded by a rubber ring being positioned in said recess and clamped between said flange and said controlling rod, a solid rubber rod being inserted into and received within said rubber hose, and a pair of connectors being disposed on the both terminals of said rubber hose of a better connection.

Abstract: A mechanically actuated pinch valve having a longitudinally extending flexible valve body with an inlet and an outlet and frame members extending along either side of the valve. Side plates are pivotally attached at each side frame. A lower pinch bar or roller extends between the side plates at the lower side of the valve body. A pair of arms are pivotally attached to the side plates and carry an upper pinch bar. The valve is actuated by means of a lever attached to the arms which simultaneously cause the pivot plates to rotate while bringing the upper pinch bar into compressing engagement with the valve body. In other embodiments the actuator mechanism may include a compound linkage or a lead screw for improved control and better mechanical advantage.

Abstract: A medical device is disclosed herein for patient care in connection with syringe and catheter drainage and feeding procedures which includes an elongated, flexible extension tube having an adapted plug or fitting at each end and a control clamp operably carried along the length of tube. Each plug or fitting is provided with a pair of dissimilar sized connections adapted to insertably receive a plurality of sized syringe or catheter dispensing nozzles or tips. Caps are provided for covering the connections and a flexible clip is employed for releasably attaching the device to a support or to the clothing of an attending nurse or the patient himself.

Abstract: A deformable sleeve for a pinch valve includes an inner tubular body of elastically deformable material which is provided with flanges at its axial ends, and a mesh element having a tubular portion which surrounds the tubular body between the flanges and prevents the same from bulging out under the influence of internal pressure. The mesh element further has anchoring portions which are anchored to the flanges. The anchoring portions can either be connected to the faces of the flanges which face one another, or embedded in the material of the flanges, either directly, or by being connected, such as clamped between or welded to, anchoring rings which are embedded in the material of the flanges. The anchoring rings may be polygonal, especially rectangular or L-shaped in radial section, or circular or similarly curved in radial section. The mesh element may advantageously be of stainless steel mesh.

Abstract: A valve for controlling flow of abrasive media from a blast tank to a nozzle, utilizes rollers for constricting a straight-through tube. In this way the valve meters the flow of the abrasive media into a blast hose through which air is directed under pressure as a carrier for the media. Contact with the media within the valve is limited to a radially constrictable tube adapted for ready replacement as the only component subject to the destructive characteristics of media such as mineral grit, sand, or the like. In association with the pinch tube housing, means is provided permitting ready interchange of manual and automatic tube-constricting assemblies. In the automatic configuration, the size of the valve orifice through which the media passes can be accurately and swiftly regulated by varying the pressure on a diaphragm.

Abstract: The present invention relates generally to plumbing repair devices and more particularly relates to a new and novel plumbing repair device and method which can be quickly and easily utilized in fluid (i.e. gas, liquid) systems whereby the fluid flow can be terminated, the repair made and the fluid flow re-established with a minimum of time and effort. The repair device and method of the present invention have particular application in such systems where conventional shut-off valves are not available and/or wherein, if they are available, they are not readily useable.

Abstract: A coal pulverizer is connected to the burner nozzles of a tangentially-fired furnace with conduits of varying lengths through which air-entrained coal is supplied for combustion within the furnace. An externally adjustable orifice assembly is mounted in each connecting conduit to equalize the flow of coal/air through the conduits to nozzles in the windboxes. Each orifice assembly comprises pivotable plates which move transverse the axis of the conduit to form an orifice in controlling the coal/air flow.

Abstract: The valve can be slid over a tube for feeding intravenous fluids to a patient and is manually operable with one hand to control the flow through the tube. A rotatable spindle moves a wedge-shaped draw bar to force a platten with protuberances against the tube to reduce the cross-sectional areas of the tube at multiple points for sensitive metering action.

Abstract: The rate and total quantity of a fluid being delivered intravenously to a patient are accurately controlled by a restrictor which operates under the supervision of a microprocessor. The microprocessor provides control signals to a stepping motor which, through appropriate gearing, causes movement of a plunger so as to increase or decrease the compression of a plastic tube of an IV set which is captured in a disposable adapter mounted in registration with the plunger.

Abstract: A valve assembly including an adjustable nozzle for directing an aimed thin stream of water soluble coolant to a machining cutter. The construction includes an elongated body which houses a valve, the nozzle in adjustable relation, and means for magnetically supporting the assembly upon a machine tool. The nozzle may be fed directly from a pump, or through a foot operated valve in series therewith. The valve is of thumbscrew type and includes a spherical ball which presses against a segment of flexible tubing passing through the valve body to obstruct the lumen of the tube without damage.

Abstract: A hand-held liquid herbicide applicator for wipingly applying the liquid herbicide on undesired vegetation. The applicator includes an elongated tubular handle having a supply container on its upper end with a special differential pressure operated vent valve in the container. A flow control valve is mounted in the handle for controlling the flow of the liquid herbicide through the handle to an applicator head carried on the bottom of the handle. The applicator head includes an especially configured synthetic sponge which is formed with a porous relatively dense peripheral skin so that the liquid herbicide received from the handle will evenly saturate the entire sponge to prevent uncontrollable liquid flow in one or more localized parts of the sponge.

Abstract: A flow regulator assembly for controlling fluid flow in flexible tubes which can be attached at a point intermediate the ends of the tube and which has a regulating member rotatable to a selected position to move into engagement and deflect the tube to decrease fluid passage therein in proportion to the amount of rotation of the regulating member. Means are provided to resist rotation of the regulating member from its selected position and provision is made for an indicator which makes it possible to select the rate of flow visually or through a sense of feel. One embodiment provides for selection of the rate of flow by listening to sounds made during rotation of the regulating member.

Abstract: A positive opening device for pinch type valves having an elastomeric body consisting of a generally cylindrical sleeve portion forming a material flow passage, with flange portions at the ends for attachment into material flow lines. Under low pressure conditions of operation, or where the sleeve portion has taken a set, being deformed or in partially closed position, it is desireable to improve the function of restoring the sleeve to a full open condition, whether of a full round type or of a pre-pinched type. The sleeve consists of an elastomeric inner layer surrounded by multiple plies of fabric reinforcement, embedded in elastomeric material in the valve body finalized form, and the fabric reinforcement extends through the sleeve and into the flanged ends. End reinforcements extending partially through the sleeve and up into the flanges are added to the body structure.

Abstract: A control apparatus for a parenteral administration set which includes a calibrated rate control clamp for determining the time period over which the contents of a standard supply container of physiological liquid is delivered. The clamp selectively constricts the tubing interconnecting the supply container with a patient and the constriction is correlated with a calibrated scale. A spring device is provided to assure that the constriction is removed responsive to loosening of the clamp. This provides for an easy and rapid setting of a given time period over which the known volume of the liquid in the supply container is infused into the patient.

Abstract: Method and apparatus for providing interruptible fluid flow to consumers is disclosed wherein a consumer distribution system for a fluid, such as natural gas, includes somewhat flexible plastic pipe with that pipe passing through buried access receptacles, such as curb boxes, at strategic locations for easy access to a short section of the supply line at each receptacle location. Each receptacle is adapted to receive a removable shut-off tool having a generally C-shaped frame with a slidable intermediate member for spanning the buried resilient service line within the access enclosure and having a threaded coupling arrangement for collapsing the service line between one end of the C-shaped member and the intermediate slidable member to squeeze the line sufficiently to interrupt fluid flow therethrough.

Abstract: Blood pump comprising an inlet valve, an outlet valve, and a displacement chamber being portions of a common flexible tubing being squeezable between fixed wall means and two spaced, movable valve plungers and a displacement plunger arranged on the portion of the tubing therebetween, wherein the valve plungers in the flow direction of the tubing have a dimension exceeding 5 mm and that in the tubing, with the valve plungers in closed position, a slot is left with a height less than 0.5 mm.

Abstract: A method of, and apparatus for, regulating the pressure in a deformable conduit conducting a flowing fluid is disclosed, wherein a transverse force is exercised on the conduit at positions spaced along the length thereof so as to effect a change on cross-sectional area of the conduit.

Abstract: A throttling device for fluids comprises a flexible tube in which the fluid is conveyed which has a compressible wall to vary the flow cross-section therethrough. The tube is received on a base plate which has a continuous channel of a size to receive the tube, and it is covered by a cover plate which has a projecting surface of a dimension and location to be positionable into the groove for compressing the tube therein, and which further includes control means for moving and the base plate relatively so as to vary the pressure acting on the tube and thus the flow cross-section therethrough.

Abstract: An improved pinch valve construction comprises a pair of pinch bars spaced apart of each other, and a valve sleeve intermediate the pinch bars and having wall portions bounding a flow-through passage. A flow-control device moves the pinch bars towards and away from each other and is operative for urging the sleeve from an open configuration in which the wall portions are spaced apart at a pre-determined distance to thereby permit flow through the passage, towards a flattened configuration in which the wall portions are spaced at a distance less than the predetermined distance to thereby restrict flow through the passage. A restoring device urges the sleeve from the flattened configuration towards the open configuration, whereby any tendency of the sleeve to remain in the flattened configuration when the pinch bars are moved away from each other is counteracted.

Abstract: The present invention is related to a fluid metering valve that is specifically constructed to provide fine metering at extremely low flow rates while still providing a full shut-off capability. The fluid metering valve of the present invention is specifically adapted to be utilized in conjunction with corrosive fluids or fluids containing suspended solid particles that would otherwise damage or clog a comparable precision needle valve.

Abstract: A fluid flow control and mounting thereof retains a flexible tube in a constant position relative to a stationary structural member and selectively constricts the tube to control the flow of a working fluid transmitted therethrough. The flow control includes an anvil engaged by the tube and a mounting connected to the anvil for detachably connecting the same to a structural member. The anvil has a transversely curved surface with a transverse concave groove therein for receiving and securely yet detachably positioning and retaining the tube therein. Flow control members are movably mounted on a rod extending from the anvil surface and include a slidably mounted clamping disc engageable with a tube positioned in the groove and an adjustment knob movably mounted on the rod. The clamping disc has a roughened surface for frictionally engaging the tube and an opposite smooth bearing surface for engagement with the adjustment knob.

Abstract: A chemical dispensing system having its most important use in dispensing flowable developing and finishing chemicals upon exposed lithographic printing plates comprises a supply container for each of the chemicals positioned immediately above the dispensing station therefor, each supply container containing continuously moving stirring means for keeping the chemical continuously in motion to homogenize the same. A number of flexible, laterally spaced dispensing tubes extend downwardly from each supply container, and a flow control valve is provided for each tube which pinches it into a closed position at a point near the container so that the volume of liquid which remains in the tube between the tube pinch point and the container is relatively small.

Abstract: In a lubricator which introduces lubricant from a reservoir into an air line through a metering orifice under pressure differential induced by a flow of air through the lubricator, the orifice is replaced by a resiliently flexible tube whose walls are adjustably squeezed together along a substantial length by a pair of threaded clamp elements to provide a metering restriction which is relatively long and therefore permissibly having a relatively large sectional area which is more accurately adjustable and clog free than the conventional orifice.

Abstract: A flexible tubular member for use in a pinch valve and through which fluid medium will flow in operation of the valve said member having in its bore diametrically spaced shoulders over which the immediately adjacent portions of the tube wrap as the tube is pinched closed by a valve plunger of suitable shape. The outside of the tube is surrounded by a fabric sleeve which lends circumferential strength to the assembly of tube and sleeve when the tube contains fluent medium under high pressure. The sleeve is such however to enable the assembly to be radially pinched at will to stop or control flow of the fluent medium through the tube.

Abstract: A combined plow and anhydrous ammonia fertilizer dispenser wherein the ammonia tank is connected to the plow so as to be drawn over unplowed ground. Hose means lead from the tank to the individual plow blades and dispense fertilizer beneath the soil being turned over in the furrows. The hoses are held in position by novel wear-reducing clamps. A further embodiment combines a chisel plow and fertilizer dispenser. The plow blades have hoses mounted thereon by clamps. Some of the plow blades which are located rearwardly of other plow blades push the dirt into the furrows cut by the forwardly located plow blades and also cover the exhaust end of the hoses with dirt causing the fertilizer to be retained in the soil.

Abstract: A screw clamp for clamping a flexible tubing includes a handle having a screw housing attached to one end. The housing has apertures in opposed side walls through which the flexible tubing can be passed, a base for supporting one surface of the tubing, and a bore above the base having internal screw threads in the wall thereof. A thumbscrew is threaded in the bore and defines a variable opening with the base. The handle is adapted to be gripped by the middle, ring and small fingers of the hand so that the thumbscrew can be rotated with the thumb and forefinger of the same hand to clamp the flexible tube against the base of the screw housing.