Abstract: An electrical capacitor casing has a fluid filling hole sealed with a self sealing device. The sealing device includes a seat for the seal on the inside of the casing and adjacent of the opening, a resilient gasket, a biasing spring and a retaining housing to form an enclosure for the gasket and spring. A key is used to open the sealing device for drying and filling the case.

Abstract: A brake control apparatus for railway cars having sprung and unsprung portions is interposed between a brake pressure supply line and a brake cylinder line. A first chamber is connected to the brake pressure supply line and a second chamber is connected to the brake cylinder line. The chambers are abutted by surfaces having different cross-sectional areas of a diaphragm which is biased. A first valve responsive to positioning of the diaphragm, and a second valve responsive to positioning of a strut in a strut cylinder, effect first and second predetermined relationships between pressure drop in the brake pressure supply line and pressure drop in the brake cylinder line. The strut cylinder, mounted between the sprung and unsprung portions of the railway car, may be adapted to sense partially loaded as well as fully loaded or unloaded conditions.

Abstract: The plastic valve includes an elongated plastic valve stem and an elongated pin. An end portion of the pin projects from an end of the plastic stem with the remaining portion of the pin being wholly encapsulated by the stem. The pin is generally cylindrical and has a pair of reduced diameter portions defining shoulders forming impact surfaces which butt the axially opposed portions of the encapsulating stem. The stem preferably has a tapered sealing surface irradiated by beta rays to provide a sealing surface highly resistant to creep and deformation. The sealing surface is coated with Fluorocarbon Polymer to reduce its chemical activity and to improve its sealing characteristics. The opposite end of the pin serves as a deflector opposite the molding gate to control the flow of plastic material during injection molding of the stem to prevent weld lines on the seal surface.

Abstract: A dispensing valve for liquid containers of the type which is normally actuated by a resiliently flexible concave diaphragm to automatically close or self-seal it but which can be manually opened a toggle arrangement including an actuating lever or tab extension projecting outwardly from the concave diaphragm. In combination with this automatically-closing toggle-actuated diaphragm structure, an extended spout is provided for slidably mounting the valve so that during shipping or when the container is not to be used for dispensing during relatively long periods, the valve is in a retracted non-dispensing position where it will be provided with an additional seal and where the valve cannot be accidentally opened by engaging the toggle lever or by shock but can be extended readily to dispensing position when desired.

Abstract: A pump for injecting metered amounts of liquid into a line or a conduit, which includes a reciprocating pumping piston in a cylindrical chamber having an inlet and an outlet, both of which are controlled by check valves, wherein the pumping piston is driven by a pneumatic motor of the reciprocating type and having a cylinder in which is located a power piston that is suitably connected to the pumping piston. A switching valve assembly is provided for controlling a supply of power gas or air to the pneumatic motor and which responds to the movement of the pumping and power pistons for effecting reciprocal movement of the pistons.

Abstract: A water faucet is opened by swivelling the faucet pipe to at least one predetermined position and is closed by swivelling to any other position.

Abstract: A multi-purpose attitude insensitive valve has a mechanical actuating mechanism with a non-valving function to permit selective actuation of the valve by a variety of means. In addition to being substantially attitude insensitive the valve is adjustable in sensitivity by way of external adjustment with no disconnection of any portion of the valve.

Abstract: A master cylinder has tilt compensating valves including positioning stop collars that catch the portions of master cylinder piston assemblies to position the tilt compensating valves axially during assembly and eliminate travel losses required to close the valves which otherwise occur due to tolerance variations. A rubber seal holds each valve assembly in position once a valveretaining nut is tightened. The master cylinder piston positions are set at a gage dimension before tightening the valve nuts. The valves are therefore so positioned that they close upon a predetermined minimum amount of piston movement at the beginning of master cylinder actuation. The valve nuts may be tightened after the master cylinder is connected to the push rod assembly or a power brake unit, thus eliminating additional tolerance losses caused by push rod or booster variations.

Abstract: A fluid flow control valve to be interposed in the depending end portion of a large diameter casing projecting downwardly below the ocean thermocline and forming a cold water passageway for moving water to the surface. The valve includes a jacket surrounding the casing and spanning a transverse partition and ports in the casing wall above the partition. A control line supported sleeve valve, having a length at least equal to the spacing between the partition and upper limit of the casing ports, is coaxially disposed in the casing and includes upper and lower floatation chambers slidably contacting the inner surface of the casing wall and spaced-apart a distance at least as great as the vertical extent of the casing ports. Inflatable seals, surrounding the floatation chambers, are selectively inflated with the floatation chambers to provide buoyancy and for opening and closing the passageway in accordance with the position of the sleeve valve.

Abstract: This disclosure pertains to a container having a self closing inexpensive valve located in the lowermost extremities thereof. The valve comprises a pair of resilient sheets having a portion of their surfaces biased in touching engagement by the manner in which the sheets are formed and mounted, and by the pressure exerted on opposed surfaces supplied by the liquid within the container. An elongated rod hingably secured to the container forces the valve-like surfaces into an open position permitting the liquid within the container to be dispensed, utilizing gravity therefor. Removal of the rod from between the valve faces permits the valve to close terminating the liquid discharge.

Abstract: This disclosure relates to a closure device for a roof drain comprising a generally inverted cup-shaped cap having an apex portion and a peripheral skirt terminating in a peripheral edge carrying peripheral sealing means for engaging an area outboard of a roof drain, and a threaded rod passing through the apex portion for rotationally connecting the closure device to a roof drain closure whereby upon rotation of the threaded rod the peripheral sealing means will be brought into contact with a peripheral area outboard of a roof drain to form a seal for retaining a predetermined quantity of water upon a roof for fire prevention purposes.

Abstract: A valve seat and/or co-operating disc has an indented or zigzag perimeter. The disc is integral with the valve body and surrounds a body aperture through which a sealed valve stem reciprocates.

Abstract: This invention relates to the art of pressure vessels and more particularly to a valve assembly for use in a pressure vessel of the type having a rigid container with a deformable bladder therein, dividing the container into two variable volume chambers, one adapted to receive gas under pressure and the other to receive liquid under pressure.The valve assembly which is screwed into a port in communication with the gas chamber includes a slidably mounted stem having a resilient valve member at one end normally urged to seat on the beveled inner end of an axial bore in the valve assembly in a first seating position of the valve member, and urged further into said beveled inner end when the bladder is charged with gas under pressure in a second seating position of the valve member. The inward movement of the valve member is limited by a stop carried by the stem. When the liquid chamber is charged, if the bladder should abut against the resilient valve member, no extrusion of the bladder would occur.

Abstract: A valve of a type for use particularly in animal waterers. A valve body having a passageway extending therethrough has a valve stem disposed in the passageway. The valve stem has an enlarged portion on one end thereof having longitudinal slots therein and a valve head on the other end thereof for cooperation with a valve seat located at one end of the passageway of the valve body. A screen having perforate sides and an imperforate end is connected to the valve body and encompasses the valve head. A cylindrically shaped member is positioned inside of the screen and is sealed at one end thereof to the valve body and at the other end to the imperforate end of the screen. A single small hole passes through the cylindrical member at a place on the cylinder whereby the valve head must move past it during opening and closing thereof to thereby keep the opening from being closed due to the build-up of foreign particles or mineral deposits thereon.

Abstract: A valve body has a large threaded inlet portion adapted to be screwed into an irrigation coupling, and also has a large inlet, a tapered portion leading from the inlet to a smaller outlet portion with an O-ring seal in a groove in the tapered portion and a cup at the end of the outlet portion to turbulate the water. A valve closure member has a tapered head and a stem, slidable in the body, and a spring urges the head away from the O-ring seal. A nut on the stem limits movement of the valve closure member by the spring.

Abstract: An automatic battery filler for adding distilled water to storage batteries, comprises an airtight closed water vessel with a spout having a discharge outlet. A spring-loaded valve has a valve stem that protrudes from the end of the spout. Means are provided to adjust the distance between the end of the valve stem and the outlet of the spout, thereby to predetermine the level at which the container will be supported on the battery by the valve stem when the valve is fully open, which in turn will predetermine the level to which the battery is filled. The adjustment is preferably effected by rotating a screw-threaded connection. The socket or the spout has a graduated scale which indicates the level to which the apparatus has been adjusted.

Abstract: Animal-actuated watering valve means comprises a coil of metallic spring wire having a plurality of convolutions and an outer sheath of a resilient material about the convolutions, the material having a substantially uniform radial thickness and exerting a radial compressive force on the spring wire along the length of the convolutions. An elongated actuator means for deflection by an animal is operably associated with the coil. The valve means is operable by parting or compressing the convolutions thereof, and is manufactured by threading a substantially uniform tubing made of a resilient material onto a spring made of coiled spring wire. The threading operation is accomplished by providing an uncoiled tail portion for the spring, first threading the tubing onto the tail portion, and thereafter transferring the threaded tubing from the tail portion onto a coiled portion of the spring.