Abstract: A device for aspirating sample media into a pipette for use in a micro-manipulation procedure includes a ring member having an opening sized for receiving a digit of an operator, and an aspirating bulb engaged with the ring member. The aspirating bulb has an open end sized for receiving an end of the pipette, and includes a compressible chamber capable of creating a suction force suitable for aspirating the sample media into the pipette. The aspirating bulb is oriented along the ring member such that the chamber is compressible by a digit on the same hand of the operator as the digit receivable in the ring member.

Abstract: A hand held fluid manipulator in the form of a suction device 10 comprises circumferentially enclosed reopenably closable fluid transfer path defining means as constituted from a displaceably mounted tube 14, a flow path defining section 16, a nozzle carrying tube and a chamber 32 defining in combination a reopenably closeable fluid transfer path 20. The device also comprises a handle 22 and a flexible strip 24 that engages with the tube 14 by way of a tube displacer formation 26. The strip 24 is lockable in a fluid transfer path open condition by way of a hook 30. The chamber 32 is open to the tube 14 by way of a set of apertures 34. Opening an closing of the fluid transfer path 20 is regulated by a fluid flow regulating arrangement 36 as constituted by the chamber 32 and the aperture set 34 and blocking of the inner end 14.2 of the tube 14.

Abstract: A liquid transfer device that includes: a plurality of reservers that each store therein a liquid; a plurality of elastic tubes that are linked to the reservers and retained by a tube guide; a rotation axis that is retained to be able to rotate; and a tube depressing member whose depressing section is fixed to the rotation axis for depressing the tubes with a helical-structured convex portion provided thereto. In the liquid transfer device, when the rotation axis rotates, the liquid starts to flow by the depressing section sequentially depressing the tubes in a direction from the reservers toward a flow-out side of the liquid.

Abstract: A hand held an portable pump has a housing with an inlet on the bottom and an outlet on its side. A central tube extends up from the housing and has a bulb attached at its end. An inlet gate is positioned proximate the inlet to operate between a closed position in which the flow of liquid there through is inhibited and an open position in which liquid may flow through the inlet. The outlet has an outlet gate that is positioned to inhibit the flow of liquid into the housing in its closed position and to permit the flow of liquid out of the housing and into a discharge tube in the open position. The bulb is operated between an at rest position and a deflected or compressed position to urge fluid into and out of the bulb and in turn draw liquid through the inlet into the housing and to urge the liquid out of the outlet and into the discharge tube.

Abstract: A self-restarting pool cover siphon includes a weighted housing placed on a pool cover having water thereon, the housing having a hollow interior and openings through which water can enter, a tube in fluid communication with the hollow interior and through which water drains, the tube bent into a loop and having an opening between opposite ends thereof at an upper position of the loop, and a differential pressure causing device removably connected to the opposite end of the tube for initially causing a differential pressure in the tube to cause water in the housing to drain through the tube, and thereafter being removed from the opposite end of the tube, wherein additional water on the pool cover will cause water remaining in the loop to pass the opening in the loop to re-prime the siphon and cause drainage of the water from the pool cover.

Abstract: A hand held an portable pump has a housing with an inlet on the bottom and an outlet on its side. A central tube extends up from the housing and has a bulb attached at its end. An inlet gate is positioned proximate the inlet to operate between a closed position in which the flow of liquid there through is inhibited and an open position in which liquid may flow through the inlet. The outlet has an outlet gate that is positioned to inhibit the flow of liquid into the housing in its closed position and to permit the flow of liquid out of the housing and into a discharge tube in the open position. The bulb is operated between an at rest position and a deflected or compressed position to urge fluid into and out of the bulb and in turn draw liquid through the inlet into the housing and to urge the liquid out of the outlet and into the discharge tube.

Abstract: A siphoning device for pumping fuel from one vehicle to another vehicle. The siphoning device includes an elongate flexible conduit for transporting liquids from one location to another location; and also includes a suction-generating member being connected to the elongate flexible conduit and being adapted to effect flow of the liquids through the elongate flexible conduit; and further includes a handle member being attached to the elongate flexible conduit.

Abstract: A hand pump for connection to a pressure control valve used as part of a sphygmomanometer. The hand pump comprising an inflation bulb, a plug and an intake valve. The inflation bulb comprising of an inlet, an outlet and an inner hollow cavity. The outlet of the inflation bulb is connected to the pressure control valve of the sphygmomanometer. The plug is secured at the inlet of the inflation bulb within the inner hollow cavity and the intake valve is secured within the plug.

Abstract: A closed feeding system for liquid fuel includes a flexible tube (1) extending from a reservoir (7) to a strainer housing (8) for differential pressure feeding of fuel, provided with pump assembly (3), in which system there is disposed a second, flexible tube (2) for return of fuel to the reservoir (7), the feed tube upstream and downstream of the pump assembly (3) being provided with non-return valves (4'-5') for flowing toward the strainer housing (8) and the return tube (2) optionally being provided with a non-return valve (6') for flowing toward the reservoir.

Abstract: An ink delivery system with purging/priming apparatus is provided, the apparatus including a pump mechanism for automatically maintaining a nominally positive air pressure within the conduit during shipping of the ink-jet printer thereby to ensure that no ink is contained within the conduit during shipping, and for automatically priming the conduit at the time of installation of the printer at a customer site to fill the conduit with a column of ink extending between an ink source such as a reservoir and an ink destination such as a pen.

Abstract: An illuminated siphon includes a directional light source attached adjacent the upper end of the siphon tube. The siphon includes a transmission path for the light source along the siphon inlet tube, with an illumination emission point near the inlet end of the siphon tube, and provides utility for the siphon in darkened and confined areas, such as vehicle fuel tanks. The light source and transmission path are disposed to one side of the siphon inlet tube, thus allowing a clear sight line for the operator along the opposite side of the tube. The inlet end of the siphon tube is inserted into the tank and the light source is activated, whereupon the siphon tube may be maneuvered to observe any water or other contaminates in the tank and to position the inlet end of the tube to withdraw those contaminates from the tank. The tube or pipe to which the light is attached is preferably relatively inflexible in order to provide for maneuverability of the light and inlet end from the opposite end.

Abstract: A drainage pan for liquid waste containers which includes a Z-bar suction pump assembled with the wall thereof for draining the liquid waste leaked from a liquid waste container, an overflow drain pipe disposed at the upper portion of the wall thereof for draining liquid waste overflow leaked from the liquid waste container, and a plurality of gradually declining supports disposed on the bottom thereof for supporting a liquid waste container whereby the drainage pan prevents the liquid waste from contaminating humans or the ground.

Abstract: This pool cover sump screen device is particularly designed for above ground swimming pools for removing accumulated rain water in the cover. Primarily, it consists of a housing with a gravel containing compartment for weighing the housing down to keep it from moving, and a rain water intake compartment is adjacent and includes a tube that is secured in a flexible syphon hose extending down from the top of the swimming pool. A hand operated pump may also employed to start the sump screen device in its syphonning operation.

Abstract: A tube pump for use in pumping a liquid from one place, such as a tank, to another, such as a vessel, the tube pump comprising a first tube for sucking a liquid from a tank; a second tube for allowing the sucked liquid to discharge therethrough; a connecting chamber located in the joint of the first and the second tube, where these two tubes are communicated with each other; a bellows member communicating with the connecting chamber, the bellows member being adapted to be gripped by the user's hand; the bellows member having an opening closable by a valve member; the valve member including a cap having an aperture in its center, and a cover including a stem slidably passed through the aperture, wherein the aperture is airtightly closed by the stem when no force acts on the cover but is opened when the cover is pushed downwards.

Abstract: An elongated tube is bent to have a central portion, a short leg and a long leg. The long leg is closed by a cap which is counterbalanced into the closed position. An elongated inner tube having an outer upper end passes through the sidewall of the long leg and terminates a substantial distance down in the long leg of the outer tube. The outer end of the inner tube is covered by a conventional bulb air pump. Squeezing the air pump pushes a pulse of air out the lower end and creates a vacuum when the cap is closed to begin siphoning through the short leg.

Abstract: Prior to planting, a disc or plate is installed in the bottom of a container. The disc is porous or has a series of slits in various patterns to permit the disc to be trimmed to proper size to fit various sizes and shapes of containers, preferably with an upward curl near the sides. Shallow grooves in the top surface facilitate bending the curl. The slits also permit drainage of water without permitting dirt to enter the space below the disc. Slits in the bottom supplement the top slits and facilitate trimming and drainage. The bottom of the disc has legs which space the disc above the bottom of the container. At different spacings from the center are shallow cups having detachable bottoms. When the disc is in place, a tube is pushed through the outermost cup, pushing out the bottom so that the bottom end of the tube extends into the space below the disc. The top of the tube is cut off slightly above the surface of the soil in the container.