Patent application number | Description | Published |
20100078177 | Electrical Submersible Pump With Equally Loaded Thrust Bearings - A rotary pump having thrust bearings includes a system for equalizing the loading on the thrust bearings. The thrust bearings are each supported on pistons that are in fluid communication with a hydraulic circuit. The hydraulic circuit has substantially the same pressure throughout, thereby floating each piston at the same pressure to provide an equal support force to each thrust bearing via each piston. | 04-01-2010 |
20110027077 | SHAFTLESS CENTRIFUGAL PUMP - A centrifugal pump has impellers that are not connected by a central shaft. More specifically, each of the impellers has a separate hub segment that interlocks with an adjacent hub segment from another impeller. The hub segments are rotated in unison with each other to rotate the impellers. | 02-03-2011 |
20110171047 | REMOVABLE LOCKING COUPLING FOR SHAFT - An electrical submersible pump has a pump assembly joined to a seal section. The pump assembly shaft, which may experience upthrust axial forces, may joined to the seal section shaft by a detachable coupling. The detachable coupling may have splines on its inner diameter that engage splines on the outer diameters of the pump assembly shaft and the seal section shaft. The detachable coupling can be bolted to one of the shafts. Locking members, such as plates, can be inserted through slots on the coupling to engage a recess on one of the shafts. A retaining device, such as a sleeve, can be used to hold the locking members in place. | 07-14-2011 |
20120107114 | Reduced Profile Abrasion Resistant Pump Thrust Bearing - A centrifugal pump has a stationary diffuser with a bore. A thrust bearing is pressed into the diffuser bore and has a curved interior. A thrust runner having a curved exterior is correspondingly and closely received by the thrust bearing interior. The thrust runner is keyed to a shaft and transmits thrust from a rotating impeller to the diffuser via the thrust bearing. The curved surface of the thrust bearing allows for handling of both axial and radial thrust without the need for multiple thrust bearings. The increased surface area of the curved surface in the thrust bearing can also handle higher loads. | 05-03-2012 |
Patent application number | Description | Published |
20110284094 | Liquid leak control appliance pedestal - Appliance pedestal that contains liquid leaks due to condensation, overflow, or system failure originating from the supported liquid filled or handling appliance, provides for multiple methods of discharge of collected liquids, and reduces installation and maintenance requirements and their associated hazards and provides an improved ergonomic operating position for the appliance operator. | 11-24-2011 |
20130206246 | SYSTEM FOR LIQUID LEAK CONTROL AND/OR AIR FLOTATION SYSTEM - Appliance pedestal that contains liquid leaks due to condensation, overflow, or system failure originating from the supported liquid filled or handling appliance, provides for multiple methods of discharge of collected liquids, and reduces installation and maintenance requirements and their associated hazards and provides an improved ergonomic operating position for the appliance operator. There is also a system to facilitate the movement of an appliance or pedestal supporting an appliance along a supporting surface. That system includes a chamber located at or proximate to the bottom of the appliance or pedestal having a plurality of openings formed therein. The chamber is pressurized to create a plurality of jets where fluid passes outwardly from the jets toward the supporting surface. The jets raise or float the appliance or the pedestal raising the appliance upwardly off of the supporting surface and allows the easy movement of the appliance along that supporting surface. | 08-15-2013 |
20130341909 | Crescent Shaped Hose or Hose Adapter - A crescent shaped hose end or adapter for interfitting into a crescent shaped opening that is formed in a circular opening of a conduit when another circular hose is present in the circular opening of the conduit. In one embodiment, there is an adapter that has a circular end to be affixed to a discharge drain for an appliance and the other end has a crescent shape cross section for use in a drain conduit having a circular opening and alongside another circular hose the takes up space in the opening. In either case, the crescent shaped cross section enables the device to be inserted through a crescent shaped opening that is formed between a circular hose and the circular opening of a drain conduit. | 12-26-2013 |