Abstract: A modular system for reducing the total suspended solids of waste, including scum, sludge and water layers, includes a plurality of chambers each being connected in succession by a corresponding one of a plurality of flow pipe segments including an inlet segment, an outlet segment and at least one middle segment, wherein the waste enters the septic tank via the inlet segment and is transferred between each of the plurality of chambers via the at least one middle segment; a corrugated flow pipe in fluid flow communication with the outlet segment; and the corrugated flow pipe being sized and configured for use as a settling zone for removal of a portion of the total suspended solids and wherein an amount of water from the water layer within the chamber adjacent the outlet segment enters the corrugated flow pipe and passes through the outlet segment.

Abstract: A modular system for reducing the total suspended solids of waste, including scum, sludge and water layers, includes a plurality of chambers each being connected in succession by a corresponding one of a plurality of flow pipe segments including an inlet segment, an outlet segment and at least one middle segment, wherein the waste enters the septic tank via the inlet segment and is transferred between each of the plurality of chambers via the at least one middle segment; a corrugated flow pipe in fluid flow communication with the outlet segment; and the corrugated flow pipe being sized and configured for use as a settling zone for removal of a portion of the total suspended solids and wherein an amount of water from the water layer within the chamber adjacent the outlet segment enters the corrugated flow pipe and passes through the outlet segment.

Abstract: A compressed gas cooling apparatus in which gas from an upstream compression stage enters an inlet section from an inlet opening and flows to a heat exchanger that cools the gas. The cooled gas then flows from the heat exchanger to the outlet section where the gas is discharged from an outlet opening. Pressure drop within the apparatus is decreased by providing the inlet and outlet sections with ever increasing and decreasing cross-sectional flow areas. In order to further decrease pressure drop due to a swirl within the gas flow imparted from the upstream compression stage, the inlet section is provided with first and second subsections wherein the cross-sectional flow area of the first subsection increases at lesser rate than the second subjection. Alternatively, or in addition, the inlet section can be provided with partitions to divide the gas flow into subflows in order to lessen pressure drop from swirl.

Abstract: A compression method, a multistage compression system and an air separation method and plant in which a gas is compressed in a series of compression stages to produce a compressed gas and each of the compression stages incorporate a variable speed compressor. In such compression method and system, the compressed air is produced at a pressure that remains stable during both normal operational conditions and during turn down conditions during which the flow rate of the gas is reduced. This reduction is accomplished by reducing the speed of the compressor in an initial compression stage such that the compressor operates at a point along its peak efficiency operating line at which the pressure ratio is directly proportional to the flow rate and such that the lower turn down flow rate is obtained at a reduced pressure which is made up in successive compression stages.

Abstract: A compression method, a multistage compression system incorporating such method and an air separation method and plant utilizing such compression method and system in which a gas is compressed in a series of compression stages to produce a compressed gas and each of the compression stages incorporate a variable speed compressor. In such compression method and system, the compressed air is produced at a pressure that remains stable during both normal operational conditions and during turn down conditions during which the flow rate of the gas is reduced. This reduction is accomplished by reducing the speed of the compressor in an initial compression stage such that the compressor operates along a peak efficiency operating line at which the pressure ratio is directly proportional to the flow rate and such that the lower turn down flow rate is obtained at a reduced pressure which is made up in successive compression stages.

Abstract: An atrial fibrillation monitor provides hand-contacting electrodes to allow daily ECG measurements of a patient without cumbersome electrode connection to the patient. ECG data may be diagnosed by the monitor to indicate likelihood of atrial fibrillation and an indication provided to the patient ECG data based on that indication may be forwarded to a physician or other healthcare professional for a review.

Abstract: An atrial fibrillation monitor provides hand-contacting electrodes to allow daily ECG measurements of a patient without cumbersome electrode connection to the patient. ECG data may be diagnosed by the monitor to indicate likelihood of atrial fibrillation and an indication provided to the patient ECG data based on that indication may be forwarded to a physician or other healthcare professional for a review.

Abstract: A non-corrosive, non-metallic hatch apparatus is provided for use on a container having a container opening with a container flange surrounding the container opening. A hatch base includes a base flange complementary to and constructed to be bolted to the container flange. The hatch base has a hatch opening defined therethrough and includes a base thread surrounding the hatch opening. A non-metallic hatch lid includes a lid thread defined thereon which is complementary to the base thread so that the hatch lid can be attached to the hatch base to close the hatch opening by threaded engagement of the lid thread with the base thread.

Abstract: A roadway is shown as being formed of various strata or layers starting with a lowermost bed layer or stratum of compacted earth carrying a layer or stratum of compacted dry concrete mix; a layer of moisture impervious material covers the top of the stratum of dry concrete mix; a roadway pavement of wet concrete mix is carried atop the moisture impervious material; and air passages are formed through the roadway pavement as to be situated transversely thereof.

Abstract: A tank mounting apparatus includes a mounting rack having a full-size tank base location defined thereon, and including a plurality of mounting brackets for mounting either one full-size tank base, two half-size tank bases, four quarter-size tank bases, or one half-size and two quarter-size tank bases within the full-size tank base location. Releasable connecting pins are provided for connecting the tank bases to the mounting brackets.

Abstract: A blender vehicle apparatus includes a vehicle having a vehicle frame. An internal combustion engine driven hydraulic power package is mounted on the vehicle frame. A plurality of liquid additive storage tanks are mounted on the frame adjacent the power package. An operator's work platform, including a control station, is mounted on the vehicle frame adjacent the storage tanks on a side thereof opposite the power package. A hydraulically powered blender assembly is also included, and a hydraulically powered lifting apparatus is mounted on the vehicle frame for moving the blender assembly between a lowered position and a raised position. The raised position of the blender assembly is located above the vehicle frame and adjacent the work platform on a side thereof opposite the storage tanks.

Abstract: An integrated control system, specifically transportable on water between offshore wells, includes mixing and blending subsystems, a pumping subsystem, a proppant subsystem and a control subsystem for controlling the other subsystems in a unified manner from a common control location.

Abstract: A support system useful to interconnect interstage components in a centrifugal compressor. The system allows controlled balancing of pressure induced forces while accommodating thermal expansion and contraction. In one preferred form a support ring is mounted about a scroll volute but supported through tie rods from a conduit concentrically aligned with the volute. A second support ring is mounted about the conduit, facing but spaced from the first ring, and supported from the volute. The support rings are respectively sealed to the volute and conduit through O-rings which allow sliding axial motion. A grooved peripheral pipe coupling seals the space between the support rings. The surface area of the support rings can be selectively chosen to direct and control pressure forces within the compressor system.

Abstract: A high pressure heat exchanger assembly for a compressor having a shell and tube-type design. An elongated bundle assembly is received within the shell. The bundle assembly has a plurality of elongated tubes extending generally longitudinally through the shell. The tubes are securely affixed to fixed and floating tube sheet assemblies positioned at opposite ends of the shell. The fixed tube sheet assembly is securely attached to one end of the shell and the floating tube sheet assembly is allowed to float with respect to the other end of the shell. A seal between the floating tube sheet assembly and the end of the shell prevents the escape of internal fluids. Each tube sheet assembly is provided with an inner and outer tube sheet member separated by a plurality of spacers to create a vented space therebetween open to the outside atmosphere.

Abstract: Shaped metal parts are produced on a continuous basis from a semisolid metal preform. A plurality of freestanding metal preforms are sequentially heated in an induction heating zone to the semisolid level and transferred without substantial deformation or heat loss to a press where they are shaped in a semisolid state into a shaped metal part.

Abstract: A heat exchanger assembly has an elongated shell provided with fluid inlet and fluid outlet openings. An elongated bundle assembly is received within the shell. The bundle assembly has a plurality of elongated tubes extending generally longitudinally and a plurality of generally parallel fin plates which are transversely oriented. The bundle assembly has a top sheet and a bottom sheet. The bundle assembly support is interposed between the bottom sheet and the shell. A baffle is provided in the form of an elongated plate extending generally diagonally between the top sheet of the bundle assembly and the shell. In a preferred form, the baffle plate is provided with an underlying seal which is interposed between the baffle plate and the top sheet and has an upper edge which is of generally complementary curvature with respect to the adjacent portions of the shell and may take the form of a portion of a sine wave.

Abstract: A collapsible tent adapted for erection on a truck bed or the like having a plurality of rigid elongated tubular elements providing endwardly disposed sockets, studs engaged in the sockets releasably mounting the elements on the bed and interconnecting them in a frame which defines a chamber on the bed, a cover fitted downwardly over the frame having lower edges secured to the bed to tension the cover over the frame holding the sockets and studs in engagement.

Abstract: Humate is utilized by drying the humate which results as a waste product and then mixing it with coal so that it can be burned to result in an ash residue which in turn is mixed with conventional dry cement ingredients for use as cement.

Abstract: A container for transport and display of cut flowers or the like. The container includes a cardboard box having a lower divider which divides the lower region of the box into two compartments. A water-tight plastic bag is placed inside the box, lining the inner surface of the box and the sides of the lower divider. An upper divider placed within the plastic bag and attached at opposite ends to opposite side walls of the box further partitions the box into four upright compartments. A lid for covering the box during transport has a pair of openings which coincide with openings in the box to provide a pair of container handles. In use, the lower region of the box is filled with water and cut flowers are placed in the four upright compartments with their stems in the water.