Patent application number | Description | Published |
20110290344 | Large bore auto-fill float equipment - An auto-fill type float collar assembly is provided. The float collar assembly of the present invention has at least one curved flapper-style valve, preferably constructed of composite, non-metallic material. Each flapper of the present invention has a substantially 90° range of motion, and is closed via a torsion spring. Each flapper is held in the open (or “auto-fill”), position via an external shifting mechanism passing around, rather than through, the central flow bore of the assembly. A floatable actuation ball can be run with the tool, or pumped downhole, in order to selectively actuate the assembly and close the flappers when desired. | 12-01-2011 |
20130105144 | Method and Apparatus for Catching Darts and Other Dropped Objects | 05-02-2013 |
20130292135 | Method and Apparatus for Launching Objects in Dual Gradient Systems - An apparatus for launching objects, such as during casing cementing operations, in wells having dual gradient fluid systems or certain downhole internal diameter restrictions. A launching assembly is located below a dual gradient valve or other restriction. In one embodiment, control lines extend from the earth's surface to the launching assembly and control actuation of the launching assembly. In an alternative embodiment, a receptacle assembly is positioned above a dual gradient valve or other restriction, with control lines extending from the receptacle assembly to the launching assembly. A dart or other triggering object is launched from the earth's surface to the receptacle assembly in order to control actuation of the launching assembly. | 11-07-2013 |
20140041859 | REVERSIBLE PORTED SUB ASSEMBLY - A reversible ported sub assembly has an upper connection assembly, a ported lower end assembly and a reversible ported jetting member. The reversible ported jetting member has a central through-bore and jet ports extending laterally from the central through-bore to the outer surface of the ported jetting member at an acute angle relative to the longitudinal axis of the central through-bore. The reversible ported jetting member can be flipped or reversed so that the jet ports can be optionally oriented generally upwardly or downwardly within a wellbore, as desired. A removable plug member can be optionally installed to prevent fluid flow through the ported lower end assembly. | 02-13-2014 |
20150136404 | LARGE BORE AUTO-FILL FLOAT EQUIPMENT - An auto-fill type float collar assembly is provided. The float collar assembly of the present invention has at least one curved flapper-style valve, preferably constructed of composite, non-metallic material. Each flapper of the present invention has a substantially 90° range of motion, and is closed via a torsion spring. Each flapper is held in the open (or “auto-fill”), position via an external shifting mechanism passing around, rather than through, the central flow bore of the assembly. A floatable actuation ball can be run with the tool, or pumped downhole, in order to selectively actuate the assembly and close the flappers when desired. | 05-21-2015 |
20150308213 | METHOD AND APPARATUS FOR CATCHING DARTS AND OTHER DROPPED OBJECTS - A dart or other dropped object having a rigid nose is dropped or launched down hole, typically during cementing operations, until it lands on a resilient seat within a dart catcher receptacle. By increasing a pressure differential across the landed dart to a predetermined amount, the dart extrudes through the seat and passes into a ported catcher sub. The seat member can be constructed of engineered composite material that does not yield in response to passage of the dart and returns to its original size following such passage. | 10-29-2015 |
Patent application number | Description | Published |
20080277417 | Temperature controlled liquid dispenser, containers therefore, and bag-in-box container construction - A dispenser for relative rapid cooling or heating of the contents of a liquid storage container provides a receptacle for receiving the liquid storage container therein and positioning a thermal transfer portion of the liquid storage container in thermal conductive relationship with a thermal conduction pad associated with the receptacle. Thermal energy is effectively and efficiently transferred from the thermal conduction pad to the liquid in the liquid storage container. The thermal conduction pad is controlled to provide and maintain the desired temperature to the liquid. The liquid is dispensed directly from the container. Various types of containers can be used in the dispenser, with a special bag-in-box container having a inner container and outer box with thermal conduction windows in the box to provide good heat transfer between the thermal conduction pads and the inner container constituting an aspect of the invention. A special rigid container can also be used. | 11-13-2008 |
20110266287 | Temperature Controlled Liquid Dispenser, Containers Therefore, and Bag-In-Box Container Construction - A dispenser for relative rapid cooling or heating of the contents of a liquid storage container provides a receptacle for receiving the liquid storage container therein and positioning a thermal transfer portion of the liquid storage container in thermal conductive relationship with a thermal conduction pad associated with the receptacle. Thermal energy is effectively and efficiently transferred from the thermal conduction pad to the liquid in the liquid storage container. The thermal conduction pad is controlled to provide and maintain the desired temperature to the liquid. The liquid is dispensed directly from the container. Various types of containers can be used in the dispenser, with a special bag-in-box container having a inner container and outer box with thermal conduction windows in the box to provide good heat transfer between the thermal conduction pads and the inner container constituting an aspect of the invention. A special rigid container can also be used. | 11-03-2011 |
20140261875 | Bag-in-Box Adapter for Water Dispenser - According to the invention, an adapter is provided to receive and hold a bag-in-box container on top of a conventional water cooler and to control the flow of water from the bag-in-box container into a sealed water reservoir of the water cooler to maintain a desired level of water in the water reservoir. Level control of water in the reservoir is provided by controlling the venting of the sealed reservoir to the atmosphere and/or by controlling the flow of water into the reservoir from the water supply line. Venting control can be through use of a hydrophobic membrane or through use of float valves in the vent, and control of flow of liquid into the reservoir from the water supply line can be by a special float valve that allows high flow capacity at low pressures. | 09-18-2014 |