Abstract: A liner for use with a diaphragm tank and a through-wall connector. The through-wall connector includes a passage fitting having a neck and adapted to extend into the diaphragm tank, an o-ring mounted on the passage fitting, and an annular holder mounted on the passage fitting and having an annular groove. The liner has a raised portion defining an annular groove to receive the o-ring.

Abstract: A device for safely storing water for later human consumption and other uses comprising a bladder sized to fit in desired location, such as a bathtub or kitchen sink. The bladder preferably includes a sleeve-like member which serves as a water entry or fill point. The bladder also has a port for inserting a pump to remove the water stored within the bladder. A string tie or lanyard can be provided with the sleeve to maintain the securement of the sleeve to the water faucet during filling of the bladder. For larger bladders an extractor tube can be disposed within the bladder and is in fluid communication with the pump assembly. With the storage device safe potable liquid is made available for use and consumption during an emergency situation or other times, when safe water is otherwise unavailable.

Abstract: A hydraulic device is provided herein. The hydraulic device mainly contains a reservoir having an airbag inside. The reservoir is provided with an inlet pipe and a plurality of outlet pipes, both extended from a top side of the reservoir. The inlet pipe receives water from a pumper and fills the reservoir via a back-pressure valve. The airbag expands by the air driven by an air compressor to force water from the reservoir into the outlet pipes. When the water level of the inlet pipe is higher than that of the outlet pipes, due to the siphon principle, water will continuously flows from the inlet pipe, through the vacuumed reservoir, into and then out of the outlet pipes. The water poured out of the outlet pipes can be utilized for hydroelectricity or irrigation.

Abstract: A fluid pressure system (S) includes a flexible diaphragm bladder (172) located inside a pressure tank (164) installed within a fluid system such as well (168). In preferred aspects, the bladder (172) can be inflated by the introduction of air and is located within a flexible confining tube (198) or confining element (298) for preventing over expansion of the bladder (172). The bladder (172) and the confining tube or element (198, 298) are free floating in and without physical connection with the pressure tank (164) in preferred forms. The pressure tank (164) includes a flexible side wall (196) to allow folding or willing of the assembled fluid pressure system (S) in preferred forms. Confining tube (198) in a preferred form is of a cylindrical configuration and arranged concentrically around the bladder (172). Confining element (298) is carried by the bladder (172) and creates a barrier extending along a chord of a cross section of pressure tank (164).

Abstract: An airbag installed inside a fuel tank is manipulated when the vehicle is inclined along a slope without sufficient fuel in the tank such that the fuel in the tank is gravitated to one side thereof. Thereby, the remaining fuel is provided smoothly and consistently to the engine by optimally manipulating the leftover fuel of the fuel tank.

Abstract: A simplified, pressure-variation preventing tank structure capable of preventing pressure variations in a gas phase portion resulting from temperature variations, without bringing stored liquid into contact with air. This pressure-variation preventing structure includes a breather bag arranged in a gas phase portion of a tank and inflating/deflating in communication with outside air, and a manhole to which the breather bag is attached to suspend in a gas phase portion, including a communication hole for the breather bag to communicate with outside air. The breather bag has air-blocking, acid-resistant and expandable characteristics.

Abstract: A non-metallic, diaphragm-type tank assembly for use with a pressurized water system is disclosed. The tank assembly comprising a non-metallic outer body; a non-metallic inner shell assembly, including an upper portion and a lower portion, that is contained by the non-metallic outer body; and a diaphragm that is structured and arranged about the upper and lower portions of the inner shell assembly to separate said inner shell assembly into a water portion and a pressurized gas portion. Preferably, the diaphragm comprises a resilient, non-porous material and includes a bead portion comprising an annular ring that is convex on an inner side and concave on an outer side at its outer periphery. More preferably, the bead portion is removably secured to the overlapable end portion of the lower portion of the inner shell assembly by a clamping system that comprises an inner clamp hoop and an outer band.

Abstract: A fuel supply apparatus reduces the fuel vaporization and leakage. The positions of vaporization and leakage and their amount in the fuel tank and the fuel pipe are detected when using a low boiling point fuel having a vapor phase in the normal temperatures and atmospheric pressures, and the fuel state is controlled based on those detected values. By providing another container made of elastomatic material having an expandable mechanical characteristic inside the fuel storing container, the low boiling point fuel is stored in the separate container. A flow rate controlling apparatus is provided for heating or cooling the fuel pipe leading the low boiling point fuel stored in the fuel storing container to the engine. A flow rate controlling apparatus is provided for adjusting the flow rate of the fuel in the fuel pipe for leading the low boiling point fuel stored in the fuel storing container to the engine.

Abstract: An in-line expansion tank. As fluid traverses a pipe within the tank, it may pass into and displace a diaphragm disposed outside of the pipe if the fluid pressure is greater than a tank pressure pushing the diaphragm against the pipe. When the fluid pressure decreases, the fluid passes from the diaphragm back into the pipe.

Abstract: For medical fluids, two-part containers are used which consist of an inner container and an outer container which is impenetrable to diffusion. The inner container collapses when the fluid is removed. For the purposes of pressure compensation between the gaseous space, disposed between the inner- and outer containers, and the surroundings of the two-part container, a pressure compensation device is required by means of which at the same time the loss of fluid through diffusion from the collapsible inner container is kept as little as possible. To that end, at least one channel is used which communicates the gas-filled intermediate space with the surroundings of the two-part container. The time constant for compensation of a pressure differential of a few millibars is within the region of quite a few hours. It is obtained by selecting the length of the channel and channel cross-section.

Abstract: A blow-molded container includes an outer layer of a synthetic resin, which forms the outer shell of a finite shape; an inner layer of a flexible synthetic resin, which is peelably laminated with the outer layer and forms an inner bag; and a pair of adhered zones of a vertical strip type, which is formed axisymmetrically on the central axis of container to adhere and fix the outer layer and the inner layer over the entire height and is located so as to avoid the positions of air introduction ports that have been provided in the outer layer to introduce air into the void between the outer layer and the inner layer. A pair of adhered zones is disposed at positions opposite to each other and is separated by a parting line. The lower ends of both adhered zones are disposed at the partly or wholly end-to-end position facing each other on the bottom seal formed when the bottom portion is pressed flat with the pinch-off of a blow mold.

Abstract: A liquid container includes an outer wall constituting a casing, an inner wall constituting an inner bladder for accommodating liquid, with the inner bladder having an outer shape substantially equivalent to an inner shape of the outer wall, and the inner bladder having a flexibility and being separable from the casing, and a pinch-off portion where portions of the inner wall are welded to each other and are pinched by the outer wall to be supported by the outer wall. The inner wall includes a thicker portion having a larger thickness than another portion of the inner wall at both sides of the welded portion, and a cavity is provided between an outer surface of the thicker portion of the inner wall and an inner surface of a corresponding portion of the outer wall.

Abstract: A pressure vessel assembly, and method of use, for storing a gas at an elevated pressure. The assembly includes a vessel body having a rigid wall with an inner surface defining a storage chamber and with an inlet allowing the gas to enter the storage chamber. The assembly includes a flexible liner positioned within the storage chamber to be in fluid communication with the inlet to receive any fluid entering the vessel body. The liner is formed of an elastic inner layer contacting the gas and a metallic outer surface. The inflated, unrestrained liner volume is generally at least as large as the chamber volume and more typically, slightly larger. Stored gas contacts the inner surface of the liner and expands the liner from a smaller deflated volume until the outer surface of the liner contacts the wall of the pressure vessel.

Abstract: A fluid pressure system (S) includes a flexible diaphragm bladder (172) located inside a pressure tank (164) installed within a fluid system such as well (168). In preferred aspects, the bladder (172) can be inflated by the introduction of air and is located within a flexible confining tube (198) for preventing over expansion of the bladder (172) and in the preferred form being of a cylindrical configuration and arranged concentrically around the bladder (172). The bladder (172) and the confining tube (198) are free floating in and without physical connection with the pressure tank (164) in preferred forms. The pressure tank (164) includes a flexible side wall (196) to allow folding or willing of the assembled fluid pressure system (S) in preferred forms.

Abstract: In an accumulator which is provided in a pipe of an equipment so as to temporarily accumulate a pressure within a piping flow passage or absorb a pulsation of a fluid pressure generated within the pipe by a pump or the like, in order to improve a durability against repeated bending and stretching motions of a bladder (3) under a low temperature environment not more than 0° C., and effectively prevent a cushion gas in a gas chamber from being reduced, the bladder (3) has a laminated structure, for example, constituted of a center elastic layer (321), a gas shielding layer (322) in an outer side thereof and an outer elastic layer (323) in a further outer side thereof, the center elastic layer (321), the gas shielding layer (322) and the outer elastic layer (323) are made of a polyamide resin, and the gas shielding layer (322) has a module of bending elasticity higher than that of the center elastic layer (321) and the outer elastic layer (323).

Abstract: A blow-molded container of this invention comprises: an outer layer (11) of a synthetic resin, which forms the outer shell of a finite shape; an inner layer (12) of a flexible synthetic resin, which is peelably laminated with the outer layer (11) and forms an inner bag; and a pair of restricted zones (15) of a vertical broad strip type, which is formed axisymmetrically on the central axis of container (1) to adhere and fix the outer layer (11) and the inner layer (12) over the entire height and is located so as to avoid the positions of air introduction ports (7) that have been provided in the outer layer (11) to introduce air into the void between the outer layer (11) and the inner layer (12). At least one of the restricted zones (15) comprises two or more adhesive zones (14) of the vertical strip type, which are parallel to each other.

Abstract: The present invention concerns a fuel supply for a fuel cell. The fuel supply includes a fuel storage area configured to hold a fuel solution, a fuel solution outlet configured to pass the fuel solution from the fuel storage area, a waste storage area, a waste inlet configured to pass waste into the waste storage area, and a movable barrier separating the fuel storage area and the waste storage area. The movable barrier is configured to move as fuel solution is passed from the fuel storage area and waste solution is passed into the waste storage area to simultaneously decrease the volume of the fuel storage area and increase the volume of the waste storage area.

Abstract: A pressure tank having a reinforced stainless steel connector that can bear heavy weight and the stainless steel connector makes the pressure tank well water-tightened. The pressure tank mainly contains: an upper chamber, an inner chamber, a sealing washer, a stainless steel connector, a leakproof ring, an elastic diaphragm, a stainless steel ring washer and a lower chamber. The upper chamber has a hole on top thereof. The upper chamber encloses the inner chamber. The inner chamber has an inward protrusion on top thereof. The inward protrusion has a through hole aligned with the hole of the upper chamber and a recession around the through thereof. The sealing washer is installed between the upper chamber and the inner chamber. The sealing washer has a through hole aligned with the through hole of the inner chamber. The stainless steel connector is engaged through the hole of the upper chamber, the through hole of the sealing washer, and the through hole of the inner chamber in order.

Abstract: A pressure vessel assembly, and method of use, for storing a gas at an elevated pressure. The assembly includes a vessel body having a rigid wall with an inner surface defining a storage chamber and with an inlet allowing the gas to enter the storage chamber. The assembly includes a flexible liner positioned within the storage chamber to be in fluid communication with the inlet to receive any fluid entering the vessel body. The liner is formed of an elastic inner layer contacting the gas and a metallic outer surface. The inflated, unrestrained liner volume is generally at least as large as the chamber volume and more typically, slightly larger. Stored gas contacts the inner surface of the liner and expands the liner from a smaller deflated volume until the outer surface of the liner contacts the wall of the pressure vessel.

Abstract: A flexible container for the transportation of fluids having means to keep the container in a sufficiently rigid shape that it can be moved and handled using conventional techniques until empty at which time the container can be collapsed for ease of shipment and storage.

Abstract: A fuel tank ventilation system and method are provided for substantially preventing fuel vapor emissions without significant increase in tank pressure. The system and method include a flexible bladder within the fuel tank that alternately deflates and inflates in response to a change in fuel vapor pressure and fuel volume.

Abstract: A liquid accommodating container includes an inner layer constituting a liquid accommodating portion for accommodating liquid therein; an outer layer having an inner shape substantially equivalent to an outer shape of the inner layer, the outer layer being provided with an air vent for fluid communication between a space between the inner layer and the outer layer with an ambience; a liquid supply portion for supplying the liquid out of the liquid accommodating portion, wherein with supply of the liquid through the liquid supply portion, the inner layer peels off the outer layer, wherein the inner layer and the outer layer are contacted, in a first region, with each other with such a force that the inner layer is peelable from the outer layer by change of an inner pressure, and the inner layer and the outer layer are contacted, in a second region, with each other with a force which is larger than that in the first region, by which the inner layer peels off the outer layer in the second region after the inner

Abstract: In an accumulator which is provided in a pipe of an equipment so as to temporarily accumulate a pressure within a piping flow passage or absorb a pulsation of a fluid pressure generated within the pipe by a pump or the like, in order to improve a durability against repeated bending and stretching motions of a bladder (3) under a low temperature environment not more than 0° C., and effectively prevent a cushion gas in a gas chamber from being reduced, the bladder (3) has a laminated structure, for example, constituted of a center elastic layer (321), a gas shielding layer (322) in an outer side thereof and an outer elastic layer (323) in a further outer side thereof, the center elastic layer (321), the gas shielding layer (322) and the outer elastic layer (323) are made of a polyamide resin, and the gas shielding layer (322) has a module of bending elasticity higher than that of the center elastic layer (321) and the outer elastic layer (323).

Abstract: A lower wall (8) forming a fuel storage chamber (5) becomes curved downward according to increase of the fuel amount, and at this time a support member (23) for supporting the fuel storage chamber (5) does not restrain the downward curvature of the lower wall (8), whereby the capacity of the fuel storage chamber (5) can be increased and whereby the amount of the fuel that can be stored in the fuel storage chamber (5) can be maintained at the maximum, as compared with structure inhibiting deformation of the lower wall (8).

Abstract: A process and apparatus are provided for conserving water and heat energy in a hot water supply system. A holding tank is provided near the Point Of Use to capture unwanted cooled water. An integrated displacement actuator allows this volume to be recirculated back into the hot water supply line after use. The actuator consists of a flexible bladder or rolling diaphragm that divides the holding tank into two compartments; one for non-compressible supply water, and the second for a compressible phase change fluid. At ambient temperature, the phase change fluid condenses to a liquid phase at a relatively low pressure, allowing diverted water to flow into the tank from the hot water supply system. When the phase change fluid is warmed by the adjacent hot water, it changes to a gaseous phase, pressurizing the holding tank and allowing re-injection of the cool water into the hot water supply system. A control system is provided direct water flow based on time, temperature and pressure.

Abstract: An apparatus (1) for use with a container (100) for storing a substance. Typically, the substance is a volatile liquid, such as hydrocarbon fuels, alcohol or distilled liquids. The apparatus (1) acts to prevent filling and evaporative losses of the liquid, minimise internal corrosion of the container (100) and prevent humidification of the liquid. The apparatus (1) employs a bladder (3a, 3b) inside the container (100). The bladder (3a, 3b) is filled with air. A pressure control unit (7) is provided to control the supply of air to the bladder (3a, 3b) such that the pressure in the bladder (3a, 3b) is maintained at or above a selected level, being the vapour pressure inside the container (100). The bladder (3a, 3b) is maintained in an inflated condition such that it fills the space above the substance in the container (100).

Abstract: A plastic pressure vessel structure includes a diaphragm mounted in a plastic outer barrel for dividing the plastic outer barrel into an upper chamber containing a liquid, and a lower chamber containing a pressurized gas, and a plastic inner barrel fully mounted in the lower chamber. In such a manner, the wall of the inner barrel and the wall of the lower chamber are overlapped with each other, such that capillary pores of the wall of the inner barrel and capillary pores of the wall of the lower chamber are arranged in a staggered manner, thereby reducing the capillary action, so as to provide a tight sealing effect in the lower chamber, thereby preventing the pressurized gas contained in the lower chamber from leaking outward, and thereby preventing the pressure contained in the lower chamber from being reduced.

Abstract: According to the invention, a fuel tank for storing a fuel therein is provided. The fuel tank comprises a pair of spaced deformable thin walls and a deformable connecting wall extending between peripheral edges of the thin walls. The connecting wall and the thin walls define a fuel chamber therein. The thin walls and the connecting wall are connected with each other to cause the connecting wall to expand inwardly when the thin walls expand outwardly.

Abstract: An active bladder system and method for using same minimizes vapor formation in a fuel tank. A low-permeation, flexible conductive bladder (18) is contained within a fuel tank (12). The bladder (18) holds or contains the liquid fuel (25) in the fuel tank (12). The bladder (18) has air pressure applied to the outside of the bladder (18) to keep the bladder (18) against the fuel (25) to prevent vapor formation during engine running modes and diurnal cycles. A fuel delivery pump (23), external to the fuel tank, pressurizes the fuel to a desired pressure for use by an engine. The system is depressurized during refueling stages. Because vapor generation is minimized during running mode and diurnal cycles, no carbon canister or purge system is required by the present invention, resulting in cost savings and lower emissions levels. The present invention is compatible with conventional fueling infrastructures and may reduce fuel pump (23) current draw due to positive pressure on the bladder (18) during running modes.

Abstract: A container filled with a freezable mixture for use in refrigeration or temporary cooling purposes. The container of the invention is generally one of the common metal cylindrical containers or cans but may also include both plastic and glass bottles. Normally such containers are unsuitable for holding a freezable mixture due to the expansion of the freezing mixture causing the deformation or rupture of said container. By using a fully soluble eutectic mixture, such as propylene glycol and water mixed at a ratio of 20% propylene glycol, an ice slurry is formed at the temperatures normally present in home freezers. A small gas space is also needed for expansion and contraction of the container contents. When a can or other inwardly flexible container is utilized, a positive pressure within the container, relative to the external pressure, can be maintained with a gas charge.

Abstract: A plastic pressure vessel structure includes a diaphragm mounted in a plastic outer barrel for dividing the plastic outer barrel into an upper chamber containing a liquid, and a lower chamber containing a pressurized gas, and a plastic inner barrel fully mounted in the lower chamber. In such a manner, the wall of the inner barrel and the wall of the lower chamber are overlapped with each other, such that capillary pores of the wall of the inner barrel and capillary pores of the wall of the lower chamber are arranged in a staggered manner, thereby reducing the capillary action, so as to provide a tight sealing effect in the lower chamber, thereby preventing the pressurized gas contained in the lower chamber from leaking outward, and thereby preventing the pressure contained in the lower chamber from being reduced.

Abstract: A vacuum chamber having at least one insulating cylinder whose end faces are closed with the aid of one cover each is described. The vacuum chamber has a movable contact stem and a movable contact piece that is attached thereto and opposite which there is a correspondingly constructed a fixed contact piece. Fastened in a vacuum-tight fashion between the one cover and the movable contact stem is a sealing element which permits movement of the contact stem and is constructed as a bellows. The cover is of cup-shaped construction in this case, and is fastened with its free edge end, which has a section of reduced wall thickness, on the end face of the insulating body, a support ring being provided which produces a mechanical reinforcement in the region of the connection of the free edge of the cover to the insulating body. Moreover, the bellows is also of multi-layered construction, if appropriate.

Abstract: A low fuel vapor emissions fuel system which reduces the need for FVCS and further obviates both the fuel pump and its return fuel line, composed generally of a rigid tank, a flexible fuel bladder within the tank, a filler pipe connecting between the fuel bladder and an exterior body location, a filler cap which removably seals the filler pipe, a fuel line from the fuel bladder to the engine, an air compression system for selectively pressurizing the cavity between the fuel bladder and the tank, and a fuel level sensor. In operation, when the ignition key is turned on, the air pump pressurizes the cavity between the tank and the fuel bladder. A program of the vehicle computer monitors the air pressure to provide a nominal fuel pressure for the engine. The air pump system further includes a vent valve, which also includes an over pressure relief valve.

Abstract: For medical fluids, two-part containers are used which consist of an inner container and an outer container which is impenetrable to diffusion. The inner container collapses when the fluid is removed. For the purposes of pressure compensation between the gaseous space, disposed between the inner- and outer containers, and the surroundings of the two-part container, a pressure compensation device is required by means of which at the same time the loss of fluid through diffusion from the collapsible inner container is kept as little as possible. To that end, at least one channel is used which communicates the gas-filled intermediate space with the surroundings of the two-part container. The time constant for compensation of a pressure differential of a few millibars is within the region of quite a few hours. It is obtained by selecting the length of the channel and channel cross-section.

Abstract: A container for storing and supplying water includes complementary upper and lower container parts, and a water and air impermeable flexible partition member. The upper and lower container parts respectively have bottom and top rims that are bonded sealingly to each other. The bottom rim of the upper container part is formed with a lip anchoring groove therealong. The lip anchoring groove has a horizontal groove portion that extends in a radial outward direction from an inner wall surface of a surrounding wall of the upper container part, and a vertical groove portion that extends upwardly from the horizontal groove portion. The partition member is disposed in the upper container part, and has a peripheral lip that engages the bottom rim at the lip anchoring groove and that is clamped tightly between the bottom and top rims.

Abstract: A compartmented container, such as an aerosol container, has a plastics pouch (12) attached to a top component such as an aerosol cone (1). The cone is typically formed of steel laminated with polypropylene, and the pouch is attached to the cone by means of a platics/plastics heat-sealed bond using the polypropylene surface layer of the cone. The pouch is attached to the cone (1) at an area away from that used to attach the cone to an aerosol container with a double seam. The cone typically has an annular countersink (4) and the pouch is attached either to the outer countersink wall (5) or the inner countersink wall (6).

Abstract: A tank comprises a structural envelope made in a form of hemisphere with a tube connection having a ring groove in its surface. A tightening ring of the structural envelope. An elastic diaphragm made in a form of hemisphere integrated with a cylinder provided with an end projection that fits into the ring groove. A bottom is made in a form of a sphere part. A thin-walled ring with a shoulder is introduced that is mounted between the tightening ring and elastic diaphragm in the place of its end projection location. The tube flange is provided with an end projection. The tightening ring is equipped with a lateral flange providing a possibility for the thin-walled ring shoulder tightening by it to the ring projection of the tube flange. The external surface of the tightening ring and internal surface of the tube flange are made tapered in the direction from the ring groove to the hemisphere of the structural envelope above the ring groove.

Abstract: A flexible diaphragm, flexible bag or bladder tank used to store and dispense, cool or heat, and sterilize drinking water or beverages under pressure, may include at least one orifice, at least one ultraviolet sterilizing unit located within it, and at least one thermo-electric unit attached to or inserted within it.

Abstract: A shipping container for highly viscous fluids and/or pastes is provided internally with a flexible liquid-tight and gas-tight rubber bladder in which there is disposed a support frame. The rubber bladder can flexibly conform to a first position pressing against the container shell inside wall and to a second position pressing against the support frame.

Abstract: Expansion tank (10) for receiving volume changes caused by temperature fluctuations in service and heating water systems (28, 29), comprising a tank (11, 11a) divided by a diaphragm (16, 22) into a pressurized gas compartment (19, 24) and a water compartment (18, 23). Water compartment (18, 23) communicates through ports (14, 27) with a water system (28, 29). Service water compartment (18) and heating water compartment (23) are integrated in a common tank (11, 11a).

Abstract: A fluid heating and pumping apparatus for use with hot fluid space heating systems includes a fluid tank containing heated fluid and a collapsible bladder contained within the fluid tank for absorbing expansion of the fluid within the fluid tank as it is heated. An air venting device is mounted at a high point in the fluid tank to discharge any air as the heating system is filled with fluid and operated. A fluid circulating impeller, volute, and pressure bypass valve apparatus are also contained within the fluid tank and are connected to an outlet in the fluid tank through which heated fluid is pumped to heat transfer components of a space heating system. A fluid mixing apparatus is attached to the fluid circulating impeller to mix heated fluid from the fluid tank with cooled fluid returned from the heat transfer components to thereby provide fluid having a desired temperature.

Abstract: The invention concerns a pressure tank comprising a rigid casing having opposite first and second orifices, and an elastically deformable separator extending inside the casing between the two orifices and subdividing the inside volume of the casing into variable-volume first and second compartments. The second compartment communicates with a hydraulic circuit via the second orifice. The first compartment is filled with elastically deformable solid elements, and the resulting assembly behaves like a spring. In the non-compressed state, the overall volume of the elastically deformable solid elements is substantially equal to the volume of the first compartment when the separator is at rest.

Abstract: A fuel tank assembly contains a supply of volatile fuel in a collapsible container having a highly compliant wall movable between an expanded configuration and a collapsed configuration so as to follow and conform closely to the supply of volatile fuel within the container as the fuel is withdrawn from and replenished in the supply, the wall having a composite construction including a fluid filler material contained within a highly flexible envelope such that the composite construction of the wall enables expansion of the container toward the expanded configuration in response to the replenishment of fuel in the container to conform to and contain the supply of volatile fuel, and enables collapse of the container in response to the withdrawal of fuel from the container, toward the collapsed configuration, with the wall continuously and closely conforming to the supply of fuel within the container as fuel is withdrawn from and replenished within the container, thereby deterring the formation of fuel vapor with

Abstract: A novel device for pressurizing an aerated drink remaining in an aerated drink container.

Abstract: A canteen minimizes sloshing or gurgling in a container containing liquid, by mechanically displacing air in an internal plastic bag which contains the liquid. The canteen permits a user to reduce the air space within the plastic bag by turning a knob which is attached to a turnscrew, which, in turn, raises a platform, thereby compressing the bag. With the air displaced from the bag, the liquid does not slosh or gurgle when the canteen is moved. A locking assembly is provided to lock the thumbscrew in place.

Abstract: A handtruck for transporting and supporting in a generally horizontal position liquid dispensing drums, the handtruck having a secondary containment means to retain any spills or leakage, the secondary containment means having one or more expandable containment means connected in fluid communication, such that a large volume of liquid will force the expandable containment means into the expanded state, thereby greatly increasing the liquid retention capacity of the device.

Abstract: A hydropneumatic pressure vessel comprising a tank wall having wall portions defining a closed cavity. A flexible elastomeric diaphragm separates the cavity into first and second fluid pressure chambers. An edge of the diaphragm is clamped between annular portions of the wall positions and other radially and axially off-set portions of the wall portions are fused to each other.

Abstract: A container for a fluid is formed of a soft, inner container for containing the fluid and a rigid, outer container, the inner container being disposed within the outer container, both containers having a discharge port common to each other. Approximately half from the discharge port side of the inner container bonded to the outer container.

Abstract: A water heater storage tank including a rigid outer shell having ports connected for water flow into and out from the storage tank. The water heater storage tank also has a flexible container within the outer shell having a wall and fittings connected to the wall for water flow into and out from the container. The fittings on the wall of the container are mounted in the ports on the outer shell. The container has a pressure compensating cushion mounted integrally with the wall of the container. The pressure compensating cushion is inflated to compensate for pressure fluctuations within the water heater storage tank.

Abstract: A liquid propellant tank of the rolling bonded diaphragm type used for missile propulsion systems contains a flexible piston that is formed together with the outer tank diaphragm in a unitary one piece assembly.