Showing papers on "Diffuser (sewage) published in 1975"

Humidifier and automatic control system therefor

Abstract: A humidifier system for delivering breathing gases such as air or oxygen from a respirator, anesthesia machine, oxygen source, or the like to a patient under controlled conditions of temperature and humidity is disclosed. The humidifier comprises a support housing adapted to receive a removable water tank, the housing also containing a low water sensing system, a water heating means, and a system for sensing and for regulating the temperature of the water in the tank. The tank includes an air inlet leading to a diffuser chamber, from which air flows through a diffuser plate, through the water to the humidifier, and thence to an outlet for delivery to the patient. The diffuser plate incorporates a plurality of cone-shaped apertures which create air turbulence in the water so that as the breathing gases are forced through the water tank under positive pressure, the gases are uniformly heated and humidified prior to delivery.

Apparatus for the inhalation of medicinal agents

Abstract: Apparatus for the inhalation of medicinal agent is disclosed which comprises forming an aerosol, containing the medicinal agent, within a venturi tube-shaped interior configuration. The apparatus comprises a housing for receiving incoming air and combining the same with a medicinal agent passed from a container supported on the housing. The housing has a converging air inlet chamber in communication with an adjacent constriction. The constriction, in turn, communicates with an aerosol delivery section via a diverging diffuser chamber. The diffuser chamber may be part of the housing and the delivery section, which section provides for oral or nasal application may be attached thereto. In the alternative, the diffuser chamber and aerosol delivery section may comprise a single section integrally formed with the housing. The diffuser chamber, constriction and air inlet chamber cooperate to define the venturi tube-shaped configuration. Medicinal agent from the container enters the housing interior proximate the constriction, thoroughly combines with incoming air to form an aerosol, and exhausts through the aerosol delivery section.

Air-foam generating apparatus for bath

Abstract: An improved air-foam generating apparatus adapted for use beneath the water in a bath or wash basin, the apparatus including a diffuser plate of porous material having minute pores ranging from 0.013 mm to 0.48 mm, the diffuser plate comprising a sintered, fine-powdered aluminum oxide grain vitrified at a temperature of 1,300° centigrade. The fine bubbles producing direct and indirect stimuli on the skin of a bather improving the general condition and improving blood circulation.

Acoustical panel assembly

Abstract: An acoustical panel assembly having improved structural, decorative and acoustical properties is disclosed. The panel assembly includes a perimeter frame. A thin septum member is supported in the center of the frame. A fibrous glass layer is positioned adjacent each side of the septum member. A molded, semi-rigid, fibrous glass diffuser member is positioned adjacent each of the fibrous glass layers. The assembly includes means for joining adjacent panel assemblies and, in one embodiment, an outer decorative fabric layer is positioned adjacent each of the outer surfaces of the diffuser members.

Seed tube diffuser for a pneumatic seed planter

Abstract: An air diffuses for use in a seed delivery tube of a pneumatic type of seed planter. This air diffuser is a short length of pipe which is perforated with a plurality of holes. The effective open area of the holes being approximately fifty-percent greater than the open area within the pipe taken on a cross-section of the pipe at the location of the holes. The air diffuser is spliced into the tube at a determinant length from the seed discharge end of the tube. It helps to maintain a uniform spacing of seed planted in the ground by preventing the buildup of back pressure upstream from the seed discharge end of the tube. If back pressure is permitted to build up in the tube, it will change the velocity of the seed traveling through the tube and effect the spacing of the seed planted in the ground.

Supporting arrangements for porous diffusers

Abstract: A supporting arrangement for supporting a porous diffuser over a discharge opening of a gas supply pipe comprises a diffuser supporting body which defines a chamber with the porous diffuser and which connects with the discharge opening whereby gas is supplied to the chamber from the pipe. The diffuser supporting body has downwardly extending limbs which straddle the gas supply pipe and positively locate with the pipe in order to mount the supporting body on the pipe.

Air diffuser with modular core

Abstract: An air diffuser with a modular core is disclosed in which the diffuser comprises a fixed rectangular framework retaining a plurality of removeable rectangular core elements. The direction and volume of air distributed by the diffuser is selectively changed by adjusting the position of the circulation blades comprising the modular core elements and by altering the orientation of the elements. Each element is retained on two sides by the fixed framework and is secured to the framework by a spring clip located at a corner of the element.

Air conditioning terminal

Abstract: An air conditioning terminal for use in an air conditioning system for discharging conditioned air into a space which includes a diffuser spaced from opposed parallel walls; the opposed parallel walls and diffuser cooperate to define therebetween two discharge air streams Spacers are provided between opposed surfaces of the diffuser and the parallel walls The sides of the spacers are in intimate contact with the opposed surfaces of the diffuser and parallel walls The spacer acts to maintain a predetermined distance between the diffuser surface and the opposed terminal wall

Rotating gas diffuser

Abstract: A rotating gas diffuser for shearing fine gas bubbles from the surface thereof when the diffuser is immersed in a body of liquid and rotated therein. The rotatable shaft of the diffuser may carry a plurality of main rigid structural spokes and an equal number of rigid hollow gas feed conduits positioned alternately around the shaft. A plurality of plates, each in the form of a section of an annulus with its lateral edges radially positioned with respect to the circular rotating gas diffuser, is supported either on the top or the bottom of the diffuser, or on both, near its perimeter. Each porous plate is carried by a plate holder that has a shape similar to its associated porous plates, and with those plates defines a gas plenum having an area substantially equal in extent to, but no greater than, the area of the plates. The lateral edges of the plate holders are releasably secured to the gas diffuser, and at least one lateral edge of each plate holder is movable initially in a direction normal to the plane of the rotating gas diffuser when its associated securing means is released. Other construction details of the rotating gas diffuser are disclosed.

Diffuser attachment for a fluorescent lamp fixture

Abstract: A light diffuser attachment particularly adapted for use with a self contained fluorescent lamp fixture of the type having a fixture body cover which includes the fluorescent tube and operative components therein and a diffuser receiving flange or rim thereon. The diffuser attachment has a generally box-like configuration and is fabricated from conventional plastic diffuser material so as to have a bottom wall, side walls, end walls and an open top end. Locating and mounting beads are disposed generally longitudinally along the inside of the diffuser side walls adjacent the open end. Selected of the beads on each side wall are laterally spaced apart from each other to define a flange or rim receiving channel therebetween which receives the diffuser receiving flange or rim of the fixture body cover therein. Preferably, the diffuser attachment side walls are bowed slightly arcuately inward toward each other at least adjacent the open top end in order that the side walls will exert a continuous biasing force against the fixture body cover. The overall arrangement is such that heat is dissipated from inside the attachment by small air gaps disposed at each end thereof adjacent the ends of the fixture body cover.

Short subsonic diffuser for large pressure ratios

Abstract: A short, wide angle diffuser having means for preventing boundary layer separation is disclosed. The means includes means for injecting a fluid stream into the diffuser at preselected locations for mixing with the boundary layer fluid. The injected fluid may be derived from the fluid exiting from the diffuser and fed back into the diffuser.

Heat collector and diffuser

Abstract: A heat collector and diffuser is disclosed for superimposition over elongated fin tube radiators in building heating systems. Blower means induces airflow across an elongated fin tube heat exchanger and into collector ducts which channel the heated air into a diffuser area where the blower means forcefully discharges the heated air into the roomer space. In this manner, inefficient and out-of-date heating systems may be improved and modernized without substantial changes or modifications.

Filter hood device

Abstract: A filter hood device containing a gas treating filter and having a clean gas outlet aperture which is closed by a blank diffuser mounting panel. The blank diffuser mounting panel is adapted to be modified at a jobsite to receive a diffuser which is suitable for the requirements of that jobsite.

Unitary air-diffusing wedge strip in air projection grille

Abstract: The present air diffuser has one or more unitary strips of adjoining tetrahedronal wedges which are progressively inclined and leaned laterally to deflect the supply air laterally outward beyond the diffuser for creating a wide, coherent, non-turbulent air blanket. At the outside of the diffuser, the wedge strip presents a series of adjoining triangular front faces which are imperforate to minimize air turbulence there when ambient room air is induced into the supply air stream emerging from the diffuser.

Device for the rapid measuring of the degree of humidity of substances

Abstract: Improvement for a device for the rapid measuring of the degree of humidity of substances comprising a diffuser intended for passing hot air produced in a stove or an oven through these substances, the said substances being contained in a cup, whose bottom is permeable to air and in which the desiccating of the substances under the action of the passing of the hot air is effected. The diffuser used is characterized in that it is constituted by a nozzle comprising a first diaphragm arranged on the same side as the oven and a second diaphragm arranged on the same side as the cup.

Ignition enhancer for starting pilot burners

Abstract: A gas diffuser screen surrounding a pilot burner and with one of the perforated walls of the screen slanted outwardly at an angle approximately forty-five degrees from the vertical and overlying an electrode spark igniter to ignite the gas supplied to the burner. The slanted wall forms a pocket of gas beneath the wall thereby permitting greater latitutde in placement in any direction of the electrode igniter outside the screen with respect to the pilot burner without adversely affecting the spark ignition of the gas supplied to the pilot burner.

Carbon black production process

Abstract: A hydrocarbon feedstream is introduced into a frustoconically shaped diffuser and therein mixed with hot combustion gases forming a first mixture and this first mixture leaving the diffuser is mixed with a second stream of hot combustion gases forming a second mixture in which the hydrocarbon feed is decomposed to form carbon black.

Diffuser type thrust generator

Abstract: PURPOSE: A diffuser type thrust generator capable of using common liquid fuels by cracking and reforming them at high termperature. COPYRIGHT: (C)1977,JPO&Japio

Tail pipe diffuser

Abstract: PURPOSE: The main body of a diffuser is formed into a polygonal cylinder whose diameter is larger than that of a tail pipe, and many air holes are drilled into the lower part of the diffuser. Simultaneously with the decrease of the temperature of an exhaust gas, the proposed device can reduce the noise level by eliminating the so-called megaphone effect. COPYRIGHT: (C)1977,JPO&Japio

Apparatus for the production of formaldehyde

Abstract: Apparatus and process for the production of formaldehyde by catalytic conversion of methanol wherein a reaction vessel has an outlet means and an inlet injector nozzle means at one end thereof, the injector means feeding reactants to a diffuser member, the diffuser member having at its other end an annular catalyst bed, and means in said reaction vessel for circulating reactants products passing from the catalyst bed to the outlet means and to the injector means-diffuser member for recirculation therethrough.

System to dry strip form material - variable coverage diffuser in axial direction in drying chamber

Abstract: A device to dry a strip from material band has a blower chamber (1) constructed with a longitudinal diffuser opening (2) axial to the material path (4) whose long axis is in the transport direction of material passing over the carrier supports (3) The diffuser opening (2) is the same length as the drying chamber of the system The side screens of the diffuser opening (2) can be adjusted to alter angle of air ejected and hence the area heated Further details are given of the construction and operation of the system

Gas bag device

Abstract: PURPOSE: To obtain a stable expanding operation by guiding a high-pressure gas stream in a gas-bag device from an injection path to a residue-separator chamber in the tangential direction of said chamber to thereby separate and remove teh residues utilizing the centrigugal force and to prevent the loading of filter of a diffuser COPYRIGHT: (C)1977,JPO&Japio

Air conditioning apparatus and system

Abstract: An air conditioning system including an air conditioning terminal to provide treated air from a central source to a plurality of areas in a common enclosure. At least one of the air conditioning terminals employed in the system is operable to simultaneously supply treated air to two adjacent areas separated by a partition member. The terminal includes diffuser sections partially defining discharge air passages from the terminal on opposed sides of the partition member. The terminal further includes a second diffuser section defining the remaining portion of the discharge air passages from the terminal, the second diffuser section having first and second downwardly extending, spaced apart leg members defining therebetween an opening for receiving a top portion of the partition member.

Effect of inducer inlet and diffuser throat areas on performance of a low pressure ratio sweptback centrifugal compressor

Abstract: A low-pressure-ratio centrifugal compressor was tested with nine combinations of three diffuser throat areas and three impeller inducer inlet areas which were 75, 100, and 125 percent of design values. For a given inducer inlet area, increases in diffuser area within the range investigated resulted in increased mass flow and higher peak efficiency. Changes in both diffuser and inducer areas indicated that efficiencies within one point of the maximum efficiency were obtained over a compressor specific speed range of 27 percent. The performance was analyzed of an assumed two-spool open-cycle engine using the 75 percent area inducer with a variable area diffuser.