Abstract: A silicon carbide process tube which can be used for heat-treating a semiconductor device in a diffusion step, oxidation step and etc.. This silicon carbide process tube is characterized in that the inner surface of the process tube has a surface coarseness of 150 .mu.m or less.

Abstract: A hydraulic accumulator device which provides regulated hydraulic energy storage of hydraulic fluid under pressure including a pressure vessel of cross section compatible with the particular hydraulic system pressure and environment and which is provided with a chamber therein, a thin wall cylinder disposed within said chamber, a sealable tubular diaphragm provided with a plurality of adjustable guides disposed within the diaphragm, the diaphragm disposed within the pressure vessel, wherein hydraulic fluid which enters the chamber communicates with a surface of the diaphragm and a pressure controlled gas disposed within the pressure vessel contacts the opposite surface of the diaphragm.

Abstract: A wine distribution method from winery to retail customer in which the wine is completely enclosed or sealed throughout until it is finally dispensed into a glass or carafe for customers in a restaurant or lounge or other retail establishment. The wine originates in a winery where it is stored in closed containers until it has been properly aged. It is then pumped through a sealed conduit from the winery vats into the closed tank of a tanker truck for shipment to a wholesale distributor. In accordance with this invention the wholesale distributor pumps the wine from the tank of the tanker truck through lines which are closed to air into large holding tanks which are also closed to the atmosphere.

Abstract: A split tank closure and diaphragm assembly for a hydropneumatic filament wound pressure vessel is disclosed. The assembly includes first and second cup shaped plastic tank liners having oblate ellipsoidal end portions and cylindrical sidewall portions terminating in cylindrical open mouth portions. A ring is provided for joining and sealing the open mouth portions together to form a sealed container and to mount a diaphragm within the tank to divide the interior of the tank into variable volume chambers. The ring has a cylindrical outer surface corresponding to the outside diameter of the cylindrical sidewall portions of the liners. The liners form a dovetail joint with the ring and respectively trap an O-ring and a bulbous portion of the diaphragm between recessed portions of the liner and a surface of the ring to seal the interior of the tank. The assembly is wound with a resin impregnated continuous roving to reinforce the tank and resist internal pressures.

Abstract: This invention presents apparatus and a method for controlling the contents and the filling of a distribution tank for pulverized material. The apparatus and method include structure for and the steps of weighing the distribution tank and an intermediate tank and structure for and the steps of sealing the connection between the tanks for transfer of material and separating the tanks for weighing.

Abstract: A plastic pipe comprising an oxygen-impermeable casing, wherein the casing comprises a barrier layer for oxygen, and an adhesive layer adjacent to the circumferential surface of the pipe and attached to the circumferential surface by an sealed bond, wherein the casing surrounds the circumferential surface on all sides, and wherein the barrier layer is elastic, is substantially impermeable to oxygen and comprises a polyvinyl alcohol, a vinyl alcohol/ethylene copolymer, or polyacrylonitrile. Also disclosed is a process for the production of the pipe and a use of the pipe as a heating pipe.

Abstract: An apparatus for metering bulk material includes a downwardly open supply chute; a metering screw having an intake length portion for receiving bulk material from the supply chute; a motor operatively connected to the metering screw for imparting rotation thereto; and a tubular metering screw casing accommodating the metering screw and arranged for guiding therein the bulk material advanced by the metering screw during rotation thereof. The metering screw is oriented obliquely with respect to the horizontal. There is further provided a spout supported at the discharge end of the metering screw and arranged for receiving the bulk material advanced thereby. The spout has a downwardly curving configuration and a substantially vertically downwardly oriented outlet opening.

Abstract: In the containing filling device the tank for the liquid to be dispensed into containers has gas somewhat over atmospheric pressure applied to the liquids surface. Each filling station has an outlet leading to the container being filled, a gas valve coupling the tank to the container and a fluid valve coupling the tank to the conveyor. The liquid above the tip of the tube that leads from the gas valve is forced back into the tank by means of gas pressure injected into the outlet after the filling operation is ended. In which case the fluid valve is forced closed and the gas valve is forced open. Because of the forced open gas valve the injection of gas takes place at very low pressure differential, causing neither disturbance of the liquid in the container and in the tank nor blow out of liquid below the level of the tank of the gas return tube.

Abstract: A device for securing a flexible hose leading from a recreational vehicle sewage holding tank, to the inlet of a campground sewer pipe, and for closing off the inlet of the sewer pipe when not in use. A cylindrical base is permanently bonded to the top of the sewer pipe. A stopper-pin assembly, connected to the base by a light chain, has a stopper which is inserted in the base to close off the pipe inlet when the pipe is not in use, and a pin which is used to secure the flexible hose to the base, by insertion of the pin through two holes in the base so oriented as to allow the pin to pass between adjacent corrugations on the outer wall of the flexible hose.

Abstract: In accordance with a method of filling liquids under counterpressure in containers, such as bottles, cans, and the like, reaching or raising the liquid into a rear gas portion is prevented, and evacuation of a surrounding air from the interior of the container as well as pre-tensioning and unloading of the container take place via passages which are not loaded with liquid residues, wherein the evacuation is performed via a gas path which is used for pressurizing of the container, filling step is stopped shortly before reaching the gas path, the unloading takes place after termination of the filling of the container, and at least one of the evacuation or unloading steps is carried out at least partially via this gas path.

Abstract: Equipment for closing conduits and comprises a closing lid (1) having two circular disks with a peripheral sealing ring of resilient material. A tightening device connect the two disks at the center thereof causing during tightening to compress the sealing ring radially outwardly. The tightening device is of very stable construction conferring to the disks a parallel movement without mutual rotation. The equipment moreover comprises a mounting device (30) having three parts which are mobile in relation to each other, an attachment yoke (31), a main clamp (39) and a support plate (43). With the aid of a cog gear (40) and racks (42, 44) rotary movements are transformed into either a clamping movement between the closing lid 1 and the support plate (43) or a pulling movement between the closing lid (1) and the main clamp (39).

Abstract: A method for utilizing a unique multi-chambered conduit insert for converting a single chambered conduit into a multi-chambered conduit. In particular, the conduit insert includes a plurality of cooperating longitudinally extending walls defining a plurality of parallel spaced apart coextensive chambers. The outer wall of each chamber which is adjacent the inner supporting surface of the single chambered conduit has a configuration wherein, if the outer wall contacts the inner conduit surface when the conduit insert is inserted within the conduit, such contact is line-to-line contact. This construction results in minimal contact of the insert with the interior wall of the existing conduit and enables the multi-chambered conduit insert to be fed into the existing conduit with the expenditure of minimal energy. In the method of the present invention, two individual conduit inserts are placed in back-to-back relationship to form an insert assembly which is subsequently inserted into the single chambered conduit.

Abstract: A method of using a collection apparatus as well as the collection apparatus itself. The latter includes collection receptacles, a drip nozzle, and a component for bringing about a relative movement between the receptacles and the drip nozzle at predetermined times to collect the drops emitted by the drip nozzle, in the different receptacles. The time between the drops is measured by a time measurement circuit. The lower and the upper time limits for a time interval within which the next drop is expected, are calculated by a time limit calculating circuit. A blocking circuit is adapted to compare the time measured after the latest drop with the calculated time limits, and to block the relative movement when the measured time lies between these time limits. The blocking circuit is adapted to permit the relative movement when the expected drop has been emitted within the time limits.

Abstract: The plugs are used to close the main steam lines of a boiling-water reactor when the reactor is shut down for maintenance, testing and refueling. The plug utilizes an elongated rubber member which is compressed by axial compression in order to form a seal which will hold the plug in place despite the presence in the steam line of substantial isolation valve test pressures which might force the plug out. Preferably, plates covering portions of the rubber are used to provide a long-lasting solid surface to grip the inside wall of the pipe. A device is provided for the remote installation of the plug so as to minimize the exposure of workers to radioactivity in the reactor vessel. The installation device includes remotely controllable structure for compressing the rubber member of the plug. In one embodiment, the compression structure includes a set of impact wrenches for turning a nut on each of several bolts which are used to compress the rubber member of the plug.

Abstract: A control apparatus for a filling machine of the type employing a hopper and rotary feed auger determines the exact number of auger revolutions required to deliver a preselected weight of material to be dispensed by weighing the volume of material delivered by a given number of auger revolutions and computing the ratio of the number of auger revolutions to the weight of the volume delivered. The ratio is then divided into the desired weight to determine the actual number of auger revolutions required to deliver the desired weight. The control apparatus also measures the amount of rotation of the rotary auger after the auger is braked at the end of each fill cycle and increments or decrements a preselected set point number of auger revolutions, depending upon whether the actual number of auger revolutions is greater than or less than the set point, to compensate for auger rotation after braking.

Abstract: A device for carrying out a volumetric metering step with which is associated a weight metering step providing a finishing of the filling. The device comprises a hopper (12) divided in two by a grid (21) and arranged to feed selectively a volumetric metering device (13) or directly the receptacle through the intermediacy of a distributor with a stopcock plug (14).

Abstract: Pressurized cylinders are rapidly filled with acetylene gas and solvent in a staged process that is closely monitored by a control unit to assure that filling progresses with all critical variables maintained within safe bounds. An operator performs certain preliminary cylinder hookup tasks as monitored and prompted by the control unit. The control unit conducts the actual filling of the cylinder, carrying out this procedure in distinct filling stages with alternate injections of solvent and gas into the cylinder. The improved system enhances the safety and efficiency with which acetylene cylinders are filled.

Abstract: Apparatus for dispensing product such as meat into packaging therefor comprises a portioning cell movable between a first station wherein it is charged with product and a second station wherein it locates above the packaging. A funnel is associated with the second station, and is mounted for vertical movement so as to locate the discharge opening of the funnel below the level of the upper perimeter of the packaging when the portioning cell is at the second station, and to raise the funnel thereafter so as to permit the passage of the packaging. A gutter is provided adjacent the second station for intercepting fluid leakage from the portioning cell.

Abstract: A drop dispenser for liquid or pasty substances such as beauty creams has a bottle and a stoppering device in which the stoppering device includes a piston spring biased to resist depression of the piston to dispense the contents of the bottle drop-by-drop.

Abstract: Fluidizable material is filled into a container by a simple and safe filling operation enabling the further transport of the filled container to be simplified. A plane during the filling operation and immediately thereafter is adjusted to an angle (y) of at least 2.degree. to the horizontal and a support is adjusted to an angle (X) of at least 2.degree. to the vertical, such that the container leans back against the support when it is filled with fluidizable material and does not slide off the bottom plane even when its lifting loops are released from a holding device. The bottom plane and the support can comprise a unit in which the bottom plane extends at about 90.degree. to the rear wall of the support. The angles x and y can be equal or different and preferred values for these angles are 5.degree.-15.degree..