Abstract

A prerotation basin for use in a sump pit or wet well includes a basin body having an upstanding exterior wall, an interior concavity for placement of a pump inlet therein, and a fluid entry channel formed in the basin body defined by a discontinuity in the upstanding exterior wall, where the fluid entry channel has a channel floor, the threshold of which is at an elevation that is equal to or lower than the elevation of the bottom surface of the interior concavity. The prerotation basin thereby provides a channel floor that slopes upwardly toward the bottom surface of the interior concavity to provide better solids entrainment in fluid being processed from the sump pit or wet well, and to provide self-flushing of the basin.

IPC Classes  ?

• E03F 5/10 - Collecting-tanksEqualising-tanks for regulating the run-offLaying-up basins
• E03F 5/22 - Adaptations of pumping plants for lifting sewage

Goods & Services

hybrid screw centrifugal pumps for use in connection with food and beverage handling, contaminated or untreated water, diesel oil agglomeration, pulp mills, paper mills and plywood mills

Abstract

A rotor assembly for a centrifugal pump includes a rotor and a rotor cover, defining a fluid chamber therebetween, and having openings or channels that are provided in either the rotor cover or the rotor, or both, to direct fluid from the fluid chamber into the rotor or rotor cover of the rotor assembly to provide reduction of increased pressure that is experienced within the fluid chamber, especially at or near the center of the fluid chamber.

IPC Classes  ?

• F04D 1/12 - Pumps with scoops or like paring members protruding in the fluid circulating in a bowl
• F04D 13/12 - Combinations of two or more pumps
• F04D 13/14 - Combinations of two or more pumps the pumps being all of centrifugal type
• F04D 29/22 - Rotors specially for centrifugal pumps

Abstract

A pitot tube assembly for a centrifugal pump includes an extension arm having a tubular body with opposing ends, at least one pickup tube secured to one of the opposing ends of the extension arm, a terminal portion positioned at the other end of the extension arm and a tapered fitting provided toward the end of the extension arm opposite to the end of the extension arm to which the pickup tube is secured, where the tapered fitting provides a frustum surface for registration with a frustoconically-shaped bore of a portion of the pump to provide axial, radial and torsional stability to the pitot tube assembly during pump operation.

IPC Classes  ?

• F04D 1/12 - Pumps with scoops or like paring members protruding in the fluid circulating in a bowl
• G01F 1/46 - Pitot tubes
• G01F 15/18 - Supports or connecting means for meters

Goods & Services

Centrifugal slurry pumps for use in the oil and gas and mineral fields

Abstract

A rotor assembly for a centrifugal pump includes a rotor and a rotor cover, defining a fluid chamber therebetween, and having openings or channels that are provided in either the rotor cover or the rotor, or both, to direct fluid from the fluid chamber into the rotor or rotor cover of the rotor assembly to provide reduction of increased pressure that is experienced within the fluid chamber, especially at or near the center of the fluid chamber.

IPC Classes  ?

• F01D 1/12 - Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor with repeated action on same blade ring
• F04D 1/12 - Pumps with scoops or like paring members protruding in the fluid circulating in a bowl
• F04D 13/12 - Combinations of two or more pumps
• F04D 13/14 - Combinations of two or more pumps the pumps being all of centrifugal type

Goods & Services

Industrial pumps, including self-primer pumps used in wastewater and solids-laden fluid processing.

Goods & Services

Pumps, hydraulic pumps, pitot pumps and related accessories, parts and fittings, namely rotors, rotor covers, rotor housings, pitot tubes, bearings, seals, gears and couplings.

Abstract

A centrifugal pump of the pitot type is structured with axially-arranged inlet and discharge features positioned on opposing axial sides of a rotor, the rotor being journalled between a rotating sleeve and a suction inlet, and the rotating sleeve being concentric with the discharge, the rotating sleeve being gear-driven by a drive mechanism.

IPC Classes  ?

• F04D 17/10 - Centrifugal pumps for compressing or evacuating
• F04D 29/42 - CasingsConnections for working fluid for radial or helico-centrifugal pumps
• F04D 1/12 - Pumps with scoops or like paring members protruding in the fluid circulating in a bowl

Abstract

A bearing assembly for supporting a drive shaft of a pump is structured with a cylindrical body having an internal cavity filled with a lubricant, a sealing element arrangement positioned at one or both ends of the cylindrical body and a pressure equalization element that functions to equalize the pressure differential that exists between an area within the cylindrical body and outside of the cylindrical body to improve the operating life of the sealing arrangement and the bearing assembly.

IPC Classes  ?

• F01D 25/16 - Arrangement of bearingsSupporting or mounting bearings in casings

Goods & Services

Vertical turbine pumps and parts therefor, namely, pump casings, impellers, drives, thrust pots, bowls, shafts, shaft sleeves, wear rings, shaft couplings, seals, discharge heads, bearings, bearing housings, stands, collets, strainers and coupling guards Installation, repair, rebuilding and maintenance of vertical turbine pumps and parts for vertical turbine pumps

Goods & Services

Industrial centrifugal pumps, namely, self-primer centrifugal pumps used in wastewater and solids-laden fluid processing

Goods & Services

Machinery, namely, grit separating, removal and dewatering equipment, namely, grit separators, comprising cyclones and parts therefor, namely, cyclone casings, cyclone housings, inlet heads for cyclones, dischargers for cyclones and wear elements for cyclones, namely, liners for cyclones, and grit classifiers for separating and dewatering grit concentrates, and parts therefor, namely, classifier tanks for processing grit, spiral conveyors, wear elements for protecting spiral conveyors, namely, wear shoes, and bearings for spiral conveyors, and drive motors for rotating spiral conveyors [ ; and rotodynamic pumps, namely, centrifugal pumps and parts therefor, namely, pump casings, pump bases, drive shafts for pumps, pump impellers, liners for pump casings, pump bearings, wear elements for protecting pump casings and pump impellers, namely, wear plates for pumps and wear rings for pumps, seals for pumps, and pipes for connection to rotodynamic pumps for conveying fluids ]

Goods & Services

Industrial pumps.

Goods & Services

Industrial pumps.

Goods & Services

Centrifugal pumps and submersible pumps

Goods & Services

Irrigation and Domestic Water Supply Pumps

Goods & Services

(1) Fluid handling machinery, namely pumps.

Goods & Services

HYDRAULIC PUMPS, PARTICULARLY PITOT PUMPS