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Pumps > Expansible Chamber Type > Fluid Serially Moved To Opposite Side Of Pumping Member Fluid Serially Moved To Opposite Side Of Pumping MemberFluid Serially Moved To Opposite Side Of Pumping Member patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.08/24/06 - 20060188380 - Pump having independently releasable ends In certain embodiments, a pump includes a first end section having a fluid inlet and a fluid intake valve, a second end section having a fluid outlet, and a midsection disposed between the first and second end sections, wherein the midsection includes a piston coupled to a drive member. The ... 04/20/06 - 20060083646 - Cyclonic debris removal device and method for a pumping apparatus A pumping apparatus and method incorporates at least one and preferably as many as four components that are configured to improve debris removal capabilities as compared to prior art apparatuses. The apparatus and method impart cyclonic motion to pumped fluid, in a manner that tends to separate entrained solids and ... 04/20/06 - 20060083645 - Downhole pump An apparatus and method for pumping from a well. A pump includes a piston assembly reciprocably engaged in a cylinder assembly. Pressure applied to a column of fluid above the pump causes a pump chamber to fill with fluid. A spring mechanism coupled to an anchor point above the piston ... 02/16/06 - 20060034718 - Well pumping system with pump rod trash cups A rod actuated downhole well pumping system is provided with spaced apart annular elastomer members secured to the pump rod at predetermined intervals to prevent solids particulates entrained in the pumped fluid from settling down to and clogging the pump mechanism during periods of pumping activity. The elastomer members are ... 01/05/06 - 20060002808 - Mechanically actuated gas separator for downhole pump A reciprocating downhole pump has a gas separator located at its bottom end. The separator forms a chamber that is expanded and contracted when the pump is reciprocated. Expansion and contraction of the chamber occurs by either the plunger reciprocating in the chamber or a piston coupled to the plunger ... 12/01/05 - 20050265875 - Wear rings for downhole pump A downhole pump for a well has a barrel and a plunger. The barrel has a passage extending along the length of the barrel, with the passage having an inside diameter. The plunger has an outside diameter and is received by the barrel passage for relative reciprocal movement. One of ... 12/01/05 - 20050265874 - Submersible pump A submersible pump for attachment to the lower end of a well pipe discharge tube for insertion in liquid includes a stationary collecting tube for collecting the liquid and an upward and downward reciprocating pumping tube within the collecting tube for pushing and lifting the liquid into the discharge tube; ... 10/13/05 - 20050226752 - Apparatus and method for reducing gas lock in downhole pumps The pump has a barrel with vent ports located therein and a plunger that reciprocates inside the barrel. The barrel has a standing valve and the plunger has a traveling valve. The plunger has a first portion with a seal between the plunger and the barrel and a second portion ... 10/06/05 - 20050220645 - Submersible pumping system and method for boosting subsea production flow A booster pumping system is disclosed for producing hydrocarbons from a subsea production well. The booster pumping system includes: (1) a submersible pump hydraulically connected to the production well to provide energy to the hydrocarbon flow and boost production to another destination such as a subsea production facility or the ... 06/30/05 - 20050142015 - Hydraulic automatic boosting pump A hydraulic automatically-pressurizing pump comprises an intermediate fastening connector, a case, a reversing valve, a mechanically-controlled automatic direction-reversing device, a power cylinder, a pressurizing cylinder and a ultrahigh-pressure connecting tube. The reversing valve, the mechanically-controlled automatic direction-reversing device, the power cylinder, the pressurizing cylinder and the ultrahigh-pressure connecting tube are ... 06/16/05 - 20050129547 - Method of circulating through a reciprocating downhole tubing pump and a reciprocating downhole tubing pump A method of circulating through a reciprocating downhole tubing pump and a reciprocating downhole tubing pump. The reciprocating downhole tubing pump has a standing valve assembly and a travelling valve. The method involves displacing and disabling, without removing, the standing ball valve assembly and the travelling valve. This can be ... ### FreshPatents.com Support |