Abstract: A valve of a vacuum apparatus with a valve seat body having left and right communicating openings opposed to the two vacuum chambers, respectively, a valve body movable in the axial direction of the valve seat body and rotatable around the center axis thereof, and a driving section for moving the valve body in the axial direction of the valve seat body and for rotating it around the center axis thereof, the valve being so disposed between the left and right vacuum chambers that the driving section of the valve is projected outwardly in the horizontal (lateral) direction.

Abstract: A mounting assembly for mounting a composite pressure vessel to a vehicle includes a saddle having a curved surface extending between two pillars for receiving the vessel. The saddle also has flanged portions which can be bolted to the vehicle. Each of the pillars has hole in which is mounted the shaft portion of an attachment member. A resilient member is disposed between each of the shaft portions and the holes and loaded by a tightening nut. External to the holes, each of the attachment members has a head portion to which a steel band is attached. The steel band circumscribes the vessel and translates the load on the springs into a clamping force on the vessel. As the vessel expands and contracts, the resilient members expand and contract so that the clamping force applied by the band to the vessel remains constant.

Abstract: A system and method for handling a hose, according to which the hose is clamped to a clamp and the clamp is moved between a first position in which the hose is retracted and a second position in which the hose is extended. Manual movement of the hose from its retracted position is sensed and the clamp is driven to its second position, and manual movement of the hose from its extended position is sensed and the clamp is driven to its first position.

Abstract: A manifold box adapted to contain manifolds for valves controlling the flow of potentially hazardous liquids. This is a rotationally cast sealed plastic box enclosing the valves to contain any leaks from the valves and allow any leaking liquid to drain from the box through a drain tube at the bottom of the box to prevent the liquid from leaking onto surfaces below or adjacent to the valves. Attachment engaging “tee-nuts” are cast in place within the walls of the box and fittings for tubing connections are attached to the walls of the box at openings in the walls. The box has a front access opening sealingly closed by a hinged plastic cover panel. In one embodiment the box is rectangular and is designed with two adjacent sloping walls which permit drainage of liquid from the box into a drain tube regardless of whether the box is mounted vertically or horizontally. In another embodiment the box is square and has one sloping wall containing a drain connected to a drain pipe.

Abstract: A method and device that aid persons in directing the dirty water being pushed along the horizontal floor-surface toward and into the drain-hole of the floor. The device is provided with a main housing-insert which is capable of being inserted into the opening of a conventional drain-hole of a floor. The housing-insert is preferably frustoconical is shape, in order to be received in different and variously sized drain-holes. Attached to the housing-insert is a pair of elongated, water-deflecting leg-members. Each leg-member is attached or supported at one end thereof to an upper portion of the housing-insert. The other ends of the legs extend outwardly in cantilever fashion. The two leg-members form an angle therebetween from their extension from the housing-insert, with the drain-hole contained within the space between the leg-members. In the preferred embodiment of the invention, the leg-members are pivotally connected at their one ends to the housing-insert.

Abstract: A self-adjusting venturi/mixer is disclosed. An inlet port body and outlet port body having a converging region and diverging region, respectively, are longitudinally slidably disposed with respect to each other, forming an annular injection gap that widens when the ports are moved apart and narrows when the ports are moved together. The movement is accomplished by virtue of varying fluid pressure at the inlet port, which exerts frictional pull on the outlet port, pulling the inlet port body away from the outlet port body. In other embodiments, a flexible member is positioned peripherially around the annular gap so that as the gap widens, the flexible member deforms to partially close the gap. This keeps the bubble size small where a gas is being injected into a liquid, and also limits a maximum flow of additive material at excessive flow rates.

Abstract: This invention concerns a shipping crate, comprising: a base having three sides and one or more doors attached thereto, wheels attached to the base, a top attached to the sides having a tank hole, wherein the base, sides, and doors have been attached to provide a sealed compartment. This invention also concerns a chemical delivery cabinet, comprising: a base, three sides, and one or more doors attached to one or more sides, a valve manifold affixed to an inner wall of the cabinet, process control instrumentation which connects to and controls the valve manifold, wherein at least one of the doors has a touch control pad mounted thereon.

Abstract: For operating pumps above the respective system resistance for all volume flows, for a spring-loaded, directly acting overflow valve for limiting the pressure in a system in which a liquid is lifted by a positive-displacement pump and flows through the system with varying rates of flow, the valve chamber (1) and the valve body (22) with the valve head (14) placed therein are constituted in such a way that the valve head, after lifting off from the valve seat (3), has a second active diameter which is bigger than the first active diameter, whereby the valve head (11) simultaneously releases, with increasing stroke of the valve body (22), an enlarging flowing-through cross section, whereby the valve body (22) is constituted in one part as a valve piston (11) sliding in the valve chamber (1) with a third active diameter which is bigger than the second active diameter so that the liquid flowing through the valve chamber (1), the valve being opened, produces a pressure difference which acts onto the valve piston (

Abstract: An apparatus for mounting a vent valve assembly in an aperture of a fuel tank comprising a valve assembly including a housing having a body portion and a flange coupled to the body portion and with a retainer block extending from the body portion spaced-apart from the flange and with a valve positioned to lie in the housing. A retainer is adapted to be coupled to an exterior surface of the fuel tank including a body portion defining a passageway being sized to receive the body portion of the housing therein and a seat formed integrally with the body portion of the retainer and extending into the passageway, so that the flange and the retainer block can cooperate with the seat to couple the valve assembly and retainer together.

Abstract: The invention relates to a hot water delivery device (20), for application to trucks, tractor-trailer vehicles and the like, including a water tank (1) which can be housed in a casing (10) rigid with the platform of the vehicle The main feature of the invention is that the device further comprises an electric power supplied boiler (6), having a size adapted to allow the boiler to be housed in said casing.

Abstract: This invention generally relates to rescue, firefighting, or paying devices and, more particularly, to a fire hose dispensing device and method. The present invention includes a hose box, fire hose, and a hose box release mechanism. The device and method allow firefighters to release and pay hose without leaving the passenger compartment of a fire truck.

Abstract: A water recirculation system is disclosed for moving water from a hot water tap to a cold water tap. The recirculation system includes a water manifold that houses a pump, solenoid, check valve and temperature switch. Water is moved between these components within the water manifold so that external piping is unnecessary.

Abstract: A covering rosette (4) for a sanitary wall-fitting comprises, in a manner known as such, a covering plate (6) which is capable of being fastened to the wall-fitting and an ornamental hood (5) which is detachably fastened to the covering plate (6). Covering plate (6) and ornamental hood (5) are each provided with passage openings (8, 18) for a region of the wall-fitting onto which an ornamental cap (1) is capable of being pushed from outside. On the covering plate (6) and/or on the ornamental hood (5) at least one spring shackle (25) is provided, the boundary surface (25c) of which pointing towards the axis of the passage openings (8, 18) is situated in the tension-free state on a circle, the diameter of which is equal to or smaller than the outside diameter of the push-on ornamental cap (1).

Abstract: An improved reeling device including a reel driven by an electric motor. The device further includes a hose having first and second ends and two electric conductors running along the entire length of the hose between the first and second ends of the hose. The hose is wound on the reel. The first end of the hose is connectable to a tool, and the second end of the hose is connected to the reeling device. The conductors at the second end of the hose extend from the hose such that one of the conductors is in communication with the motor and the other conductor is attached to a part of the reel device. A switch is connected to the conductors at a proximity of the first end of the hose and the switch is arranged to complete an electrical circuit.

Abstract: A flow control valve for allowing the flow to be controlled on a proportional basis using a direct current(DC) motor thereby improving the flow control function. The flow control valve is constructed in a manner that a valve housing having a guide space and an inlet and an outlet is formed on the both sides of the valve housing, the inlet and the outlet being in communication with each other through the guide space. A spool is installed inside the guide space of the valve housing and up/down movably coupled therein so as to control the opening of the outlet. A spool guide is placed on the upper side of the guide space passing through liquified coolant by moving up/down along with the spool. A elastic support elastically supports the spool guide to one direction. A sealing member prevents the leakage of liquefied coolant by surrounding the spool on the lower side of the valve housing. A driving mechanism moves the spool up/down by use of a DC motor.

Abstract: Different functional control manifolds, adapted for specific process and test applications, are selectively mounted on a common base manifold which independently provides sealing of the process lines of a fluid handling system. This enables a specific functional control manifold such as a single block and controlled vent manifold, a single block and vent manifold, or a double block and bleed cross-over manifold, to be preassembled with a test instrument prior to installation of the test instrument to the base manifold. Each embodiment of the functional control manifold is designed so that the sensing cavities of the test instrument are able to fully drain through the functional control manifold into the base manifold, thereby eliminating a potential source of error during calibration of the test instrument.

Abstract: A theft resistant valve cap including a liner adapted for threaded engagement with a standard pneumatic tire stem valve, a sleeve rotatably mounted with the liner to shroud it and an interlocking feature to selectively prevent axial displacement between the liner and the sleeve. The liner includes a hollow body with first and second opposed ends that features shoulders positioned proximate to one of said opposed ends. The shoulders, when employed with the sleeve rotatably mounted with the liner to shroud it, facilitates restricting removal of the cap from the valve stem to authorized individuals, only. Specifically, an interlocking mechanism extends between the liner and the sleeve and limits axial movement therebetween, while allowing rotational movement. To remove the cap from the valve stem, a key is employed which forms an interference fit with the shoulders in the liner, once exposed.

Abstract: A mechanical leak arresting valve is disclosed in which fluid through the valve is limited to a range between a predetermined minimum flow rate and a predetermined maximum flow rate, and where both a small or large downstream leak mechanically causes the valve to lock closed. The present invention uses a locking mechanism triggered by a pressure differential resulting from the downstream leak to block the flow of fluid through the valve until the fluid source upstream is stopped. Reduction of the upstream pressure by the stopping of the fluid source automatically resets the valve without further manipulation.

Abstract: A shut-off device for selectively stopping the flow of conveyed loose bulk materials in a conveyor conduit includes a housing (2) with a flow passage (3) therethrough, and at least one shut-off element (4, 5) movably arranged in the housing. The at least one shut-off element (4, 5) is driven by at least one drive (7, 8) and is arranged in such a manner that it moves between a first open position in which the flow passage (3) is completely open, and a second nearly closed position in which the flow passage (3) is nearly but not completely closed. Namely, a flow gap (6) preferably having a dimension on the order of the particle size of the goods to be conveyed, remains open even when the shut-off element (4, 5) is in its most-closed position. Particles of the conveyed material become caught on or in the gap (6) to effectively close off and stop the flow of conveyed materials.

Abstract: The present invention provides multi-layer microfluidic systems, by providing additional substrate layers, e.g., third, fourth, fifth and more substrate layers, mated with the typically described first and second layers. Microfabricated elements, e.g., grooves, wells and the like, are manufactured into the surfaces between the various substrate layers. These microfabricated elements define the various microfluidic aspects or structures of the overall device, e.g., channels, chambers and the like. In preferred aspects, a separate microscale channel network is provided between each of the substrate layers.