Abstract: The invention provides an apparatus and method for removing spent solvent from manufacturing apparatus during operation. The apparatus uses a collection housing having input, exhaust, and output ports with U-shaped output transfer tubing positioned inside the housing and connected on one end to the output port. The output tubing arches upward inside the housing and has a tapered opening positioned near the bottom of the housing. Negative pressure is applied to the exhaust port to move cleaned air out of the housing and solvent laden air into the housing through the input port. Solvent precipitates from the air and collects as a liquid in the housing until the liquid level rises above the arched bottom of the transfer tubing. At this point, the solvent flows through the tubing and the output port, and out of the housing under the influence of gravity at atmospheric pressure.

Abstract: A misting system is constructed of plastic pipe having a square cross-section, the pipe being dark inside and light outside so that the outside matches the counter and the inside absorbs ultra violet light. The plastic pipe is drilled and threaded to receive nozzle assemblies where needed. Each nozzle assembly includes a valve, and two angled branches, the branches being rotatable about the assembly while the nozzle branches are rotatable about their axes. The square pipe includes fittings for directing the pipe as required, and mounting brackets for mounting the pipe. The brackets are clevises that receive the pipe therein, and include keepers for securing the pipe.

Abstract: A continuous flow steam condensate removal device includes a Venturi-type nozzle of relatively small diameter formed in an intermediate portion of a unitary body. With respect to the Venturi-type nozzle, the unitary body includes an upstream annular conically tapered entrance surface, a relatively long condensate collection passageway for forming a condensate steam seal, and a flow-reduction passageway. Downstream, the unitary body includes a condensate discharge-transition passageway and an enlarged-diameter frustoconical discharge passageway for flushing and maintaining a downstream condensate return line clear of debris.

Abstract: A main storage tank (2) is pressurized by engine bleed air. A supply tank (12) communicates with tank (2) and with an engine feed line (50). A fluid impermeable expandable wall (34) separates tank (12) into isolator chamber (38) and pressure chamber (40). A surface tension screen (44) covers inlet (42) into isolator chamber (38) to allow liquid fuel to enter chamber (38) and prevent gas from entering chamber (38). During operation of the flight vehicle, a fuel pump withdraws fuel from chamber (38). Pressure chamber (40) is vented to ambient air when the flight vehicle is under no power or is operating under g forces greater than zero, to allow wall (34) to expand and contract to compensate for changes in temperature and pressure. Chamber (40) is pressurized by engine bleed air when the vehicle is operating under zero or negative g forces.

Abstract: Gravitational flow system and equipment sets for the sequential administration of medical liquids wherein a primary liquid can be administered at a flow rate independent of the flow rate of a secondary liquid, and including a barrier substantially impervious to air to prevent the inadvertent administration of air when the secondary liquid is depleted.

Abstract: A passive propellant acquisition and feed system is disclosed which will acquire and feed gas-free propellant in low or zero-g environments during orbital maneuvers which will also retain this propellant under high axially directed acceleration such as may be experienced during launch of a space vehicle and orbit-to-orbit transfers wherein the propellant system includes a dual compartment propellant tank with independent surface tension acquisition channels in each compartment to provide gas-free flow of pressurized liquid propellant from one compartment to the other in one direction only.

Abstract: This invention relates to a novel apparatus useful for the gravity fed delivery of a liquid from a first liquid reservoir to a second liquid reservoir. This apparatus is especially useful for the administration of intravenous (I.V.) solutions, where a constant flow, despite varying conditions of pressure in said second fluid reservoir (i.e. the blood-stream of the patient) is desirable if not absolutely required.

Abstract: A vapor reservoir adapted for use in conjunction with a vaporized liquid fuel system for an internal combustion engine is disclosed. The reservoir includes a movable wall member cooperative with means defining a housing to establish a variable volume vapor storage space. The movable wall member is referenced to the pressure of the air immediately upstream from the intake to the air and fuel metering portion of the engine. The housing includes a generally downwardly depending condensate collecting and return section. Vapor delivery conduits are positioned within the housing and support a thermally floating finned member operative to disperse vapor delivered to the vapor reservoir. The movable wall member is provided with position sensing means operative to provide an input to an electrical circuit for controlling the rate of vapor delivery to maintain a predetermined quantity of vapor within the vapor space.

Abstract: A device for detecting the presence of air bubbles within a fluid-carrying tube, for example a blood tube used in medical procedures. The tube is placed between a light source and an optical sensor which produces signals when bubbles pass through the tube. These signals are integrated and a switch changes state when the integration reaches a predetermined value. The detector thus responds to a predetermined quantity of air, either by a large air bubble or an accumulation of small air bubbles. In a preferred embodiment, the switch releases a springloaded clamp which pinches off the tube when an excessive amount of air is detected.

Abstract: A process is disclosed for preparing a silver halide emulsion comprised of serially receiving a silver halide emulsion at an upstream location, supplying the silver halide emulsion in a further prepared form at a downstream location, and transporting the silver halide emulsion between the upstream and downstream locations while it is being further prepared. The silver halide emulsion is divided into discrete segments as it is received at the upstream location. The discrete segments of the silver halide emulsion are transported between the upstream and downstream locations in the sequence of their formation. The emulsion can be finished as it is transported to the downstream location. The silver halide grains can be shelled during transport. In still another application a converted-halide emulsion can be formed during transport to the downstream location.