Abstract: An inexpensive owner installable remotely controlled drain valve for the crankcase of a motor vehicle utilizing a valve having a rotatable stem therein. Rigid extensions with universal joints therebetween are coupled between the valve stem and a locking means located under the hood of the vehicle. Rotation of the free end of the device opening and closing the valve to permit controlled drainage of the crankcase.

Abstract: A locking valve construction including a housing, a valve member in the housing, a fluid inlet and a fluid outlet in the housing, a valve member rotating key for rotating the valve member to an open position for selectively effecting communication between the fluid inlet and the fluid outlet, a holding member effectively mounted on the housing for holding the housing against rotation relative to a base when the valve member is being rotated by the valve member rotating key, and mounting structure for mounting the housing on the base for permitting the housing and the valve member to rotate as a unit in the event that the holding member is rendered inoperative to thereby prevent movement of the valve member relative to the housing to an open position.

Abstract: A sleeve valve comprising an elastomer sleeve folded onto itself, the two peripheral ends being fixedly held so that an integral control chamber is created, an opening being provided in said chamber for connecting it to a control pressure source, no housing being required.

Abstract: A ram-type valve assembly for well blowout prevention applications and the like. Opposing ram assemblies disposed in ram guideways transverse to the valve bore are each provided with two pistons extending outward of the valve housing having internal passages communicating with respective passages internal of the housing terminating in respective closing and opening ports. A cylinder assembly with interconnected cylindrical chambers is slidably disposed about respective pistons. Pressurizing the closing or opening ports transmits pressure through the pistons to the chambers, effecting cylinder assembly movement along the pistons inward toward and outward from the bore, respectively. Each cylinder assembly is interconnected to its respective ram, transmitting cylinder movement to the ram. The hydraulic circuits are isolated from the bore preventing hydraulic circuit contamination and accidental ram opening from bore pressure leaks into the hydraulics.

Abstract: A tide gate check valve in which at least three converging sides are provided at a tapered region of a flexible sleeve, so that on reverse back pressure build-up of fluid, reverse fluid flow is prevented, while the valve sleeve does not invert or collapse. The present configuration features embedded reinforcing elements for resisting inversion or collapsing when the back pressure builds up. This feature is especially important for large-sized conduits of 36" or 72" diameter, or even larger, such as are common in storm sewer applications.

Abstract: A valve body is disclosed located in the hydraulic system of a machine which valve serves to direct hydraulic fluid under pressure to hydraulic components or divert the fluid to a system reservoir to prevent component operation. A check valve in the valve body is opened or closed by control means with the check valve indirectly determining the position of a pressure responsive spool for either normal fluid passage to hydraulic components or fluid diversion back to a reservoir. Remote actuation of the control means is by a hand operated air, lockable pump to enable an authorized equipment operator to remotely actuate said control means to effect locking or unlocking of the hydraulic system by positioning the check valve. A modified check valve control dispenses with the air pump and utilizes a lock plunger to bias the check valve to a closed position for normal hydraulic system operation or, conversely, to open the check valve to divert pressurized fluid back to a system reservoir.

Abstract: A sluice gate including a closure member comprising a sheet of flexible fabric reinforced polymeric material having pairs of reinforcing members extending horizontally across the sheet with one member of each pair located on the upstream side and the other on the downstream side of the sheet in use. The pairs of members are secured together with the flexible sheet between them and at least some of the members on the upstream side extend beyond the side edges of the sluice opening to be controlled and those on the downstream side are able to pass into the sluice opening. The sluice gate includes control means for drawing the lower end of the closure member upwardly and away from the opening to progressively open it and to allow the closure member to return progressively to the closed position.

Abstract: A pallet for handling and transporting a plurality of pressurized gas cylinders includes a floor structure on which the cylinders stand and side walls to retain the cylinders in place on the floor structure. For certain gas delivery applications it is desired to gang the cylinders by connecting them to a common manifold which is protectively supported on the pallet. To this end, a pair of upright center posts are provided at opposite sides of the pallet. The posts extend above the tops of the cylinders. A cross bar interconnects the upper ends of the posts and provides a structure for protectively supporting a manifold. An elongate manifold depends from and is supported by the cross bar. The manifold has ports which are connected by flexible high pressure hoses to each of the cylinders. The cross bar preferably takes the form of a truss structure which additionally cooperates with the center posts to provide a lifting frame that can be engaged by a crane for handling the pallet.

Abstract: A dust trap having an annular valve seat and a pivoted valve flap closing the same including an off-center connection between the actuating means for said pivoted flap and said flap thereby to lessen the force required to open the valve passageway against the force of vacuum.

Abstract: A valve body forms flow passages at longitudinally opposite sides of a stopper to be brought into communication through the stopper when the stopper is rotated from closed to open positions, the body having a side opening. To rotate the stopper there are provided:(a) a sleeve adapted for reception in the side opening, the sleeve having retainer structure to interfit shoulder structure on the body for blocking rotation of the sleeve in the side opening,(b) a crank received in the sleeve for rotation therein, thereby to rotate the valve stopper, and(c) interengageable stop shoulder structure on the crank and sleeve to limit rotation of the crank and the stopper at stopper open and closed positions.The retainer structure typically includes two tangs projecting in spaced apart relation for reception in grooving in the body.

Abstract: A rectangular steel key on the control stem for operating the cast iron ball of a ball valve, wherein the key is provided with two large cylindrical steel joint pieces which are idly fitted onto the two ends of the key, and which are inserted into corresponding cylindrical cavities in the seat present in the pivot of the ball.

Abstract: The invention provides a conduit blow out preventer utilizing movement of an annular piston to selectively effect the reduction of flow through the blowout preventer to a pre-determinable value or alternately, terminate flow therethrough altogether in response to the occurence of a pressure fluctuation in the fluid conduit to which the conduit is attached. An annular fluid conduit is defined between the interior bore of the annular piston and a support post. A discontinuous annular sealing element is provided in such fluid passage to provide an orifice, creating a pressure differential across the piston in the event of a biased flow surge. Axial movement of the annular piston results in closing of the outward fluid flow in the annular fluid passage and flow is then restricted to that permitted by a radially disposed orifice communicating with the annular fluid passage. A check valve in a fluid inlet is normally held off its seat by a connecting rod extending to the support post.

Abstract: The device comprises a main valve-seat of sheet metal having an anchoring flange attached to the valve body and a closure structure which is adapted to cooperate with the valve disk by means of an outer wall forming a curled shell, said closure structure being applied against the convex surface of an auxiliary seat which is in turn applied against the valve body in order to ensure resilient coiling-up of the curled shell when closing the valve, thereby reducing the operating torque of the valve and achieving enhanced leak-tightness in the closed position.

Abstract: Valve suitable for use in a relatively narrow elongate opening to an air duct in a window frame which opening faces inwardly towards an accommodation space. The valve has at least two, preferably three, separately made, elongate members made by extrusion. A first valve body-forming member and a second holder-forming member together with a third support-forming member are adapted to be pivoted relative to each other. In the closed position of the valve the members are adapted to support each other in triangular form over a substantial part of the length dimension of the valve. The first and second members are jointed together as a pair and the third member is jointed together as a pair with the first member as well as being adapted to make a snap-forming supporting abutment against the second member.

Abstract: An intravenous tubing clamping device is provided for controlling fluid flow through compressible tubing. The device includes an elongated member having a proximal end and a distal end which is adapted to receive the tubing. The body member has a generally V-shaped longitudinally extending bottom wall having an angle of about 60.degree. to 165.degree. defining two supporting surfaces for the tubing. In one embodiment, the bottoms of the side walls of the body member define ledges on opposite sides of the V-shaped bottom wall. In another embodiment, the body member defines two grooves on opposite sides of the V-shaped bottom wall. A roller is mounted on the body member for movement longitudinally of the body member. The roller has a generally V-shaped circumference having an apex angle centrally located on the roller having a value of about 60.degree. to 180.degree.. The roller also has circumferentially extending grooves extending around both opposite sides of the outer periphery of the roller.

Abstract: An intravenous tubing clamping device is provided for controlling fluid flow through compressible tubing. The device includes an elongated member having a proximal end and a distal end which is adapted to receive the tubing. The body member has a generally V-shaped longitudinally extending bottom wall having an angle of about 60.degree. to 165.degree. defining two supporting surfaces for the tubing. In one embodiment, the buttoms of the side walls of the body member define ledges on opposite sides of the V-shaped bottom wall. In another embodiment, the body member defines two grooves on opposite sides of the V-shaped bottom wall. A roller is mounted on the body member for movement longitudinally of the body member. The roller has a generally V-shaped circumference having an apex angle centrally located on the roller having a value of about 60.degree. to 180.degree.. The roller also has circumferentially extending grooves extending around both opposite sides of the outer periphery of the roller.

Abstract: An apparatus incorporating a normally-closed check valve mounted on the inlet end of a vapor withdrawal conduit and located in the upper vapor portion of a partially filled pressurized LP gas tank on a recreational vehicle or the like. The outlet end of the vapor withdrawal conduit extends to a point lower and exterior to the volatile liquid container and is connected to a control valve to stop the flow of fluid. As the control valve is opened to allow fluid to pass. Then the pressure in the vapor withdrawal conduit drops. The check valve opens and allows gases from the volatile liquid container to pass down the tube. After the control valve is closed, the pressure in the vapor withdrawal conduit increases till it equals the pressure in the container. The check valve closes and stops the flow of fluid.When the apparatus is used in a movable mode, such as on a vehicle, the check valve is closed, preventing the volatile liquid contained in the container from being splashed into the vapor withdrawal conduit.

Abstract: A new and improved valve apparatus having an operating mechanism sealed in such a manner that the fluid pressure urging thereon produces offsetting or balancing forces to enhance ease of valve operation. To accomplish the force balancing, the flow closure means is continuously sealed to the valve housing and seat to produce the desired pressure responsive surfaces. By balancing the pressure forces, movement of the valve closure element between the open and closed positions with a minimum of operating force is accomplished. In addition the operating mechanism tubular flow closure element and valve seat having a plurality of opposed radially disposed flow opening are arranged so that the controlled flow through the openings into the seat impinges on itself to prevent flow cutting or erosion of the valve seat. When the flow closure element moves to the closed position, it activates a protected second seal on the seat to block flow throuh the flow openings.

Abstract: The invention pertains to water and grease separators as used in a conventional plumbing system. A synthetic plastic receptacle is supported upon a framework usually located below, or adjacent to, a sink receiving liquid wastes to be separated. The framework supports a pair of coupling halves connected to the plumbing system, and inlet and outlet fittings mounted upon the receptacle align with and are connected to the frame supported couplings when the receptacle is mounted upon the frame. Baffling within the receptacle aids in the separation of water and grease, the fittings permit the receptacle to be quickly removed from the plumbing circuit, and a valved drain within the receptacle permits rapid disposal of its contents.

Abstract: A butterfly valve disc of generally oval shape, tiltingly arranged so that the outer periphery forms a perfect circle intersecting with the inner bore of a butterfly valve, and where two semi-circular wall portions forming said discs have angularly offset planary axes to substantially reduce hydrodynamic torque.