Abstract:
A progressive cavity pump system on a well includes a holdback apparatus. The holdback apparatus has a housing and a one-way bearing in the housing. The housing attaches to the drive head on the well. The one-way bearing allows the motor to drive the pump. The one-way bearing prevents reverse rotation, preventing the sucker rod from unwinding and fluid above the pump from draining, when the pump loses power.
Abstract:
The passage of a container along a conveyor is lubricated by applying to the container or conveyor a composition comprising a water-miscible silicone material wherein the composition has good wetting to polyethylene terephthalate surfaces. The compatibility of the lubricating composition with polyethylene terephthalate is increased because the wetting of the composition to polyethylene terephthalate is improved.
Abstract:
The passage of a container along a conveyor is lubricated by applying to the container or conveyor a composition comprising a water-miscible silicone material wherein the composition comprises a stoichiometric amount of an organic acid. The compatibility of the lubricating composition with polyethylene terephthalate is increased because of the presence of a stoichiometric amount of acid.
Abstract:
A downhole separator has a housing defining an interior cavity divided into a first chamber and a second chamber by a flow restricting bearing housing. A shaft driven impeller pumps production fluid into the first chamber and to the bearing housing. The bearing housing generates a pressure drop in production fluid entering the second chamber, separating gas from liquid. A vortex generator in the second chamber segregates the liquid to the outside and the gas to the inside of the second chamber. A downhole separation method includes pumping production fluid into a first chamber, and generating a pressure drop in the fluid as the fluid enters a second chamber to separate gas and liquid.
Abstract:
The present invention provides a method of preparing a lipid nanoparticle dispersion using a twin screw extruder. The inventive DNLF fluids are isotropic fluids which include greater than 25% lipophilic content in the form of lipidic nanoparticles dispersed in a continuous aqueous matrix with turbidity less than 375 nephelometric turbidity units (NTU).
Abstract:
The present invention provides a water continuous dispersion of nanoparticles. The water continuous dispersion includes: one or more aromatic amide anesthetic compounds; one or more polyethoxylated high HLB surfactants; one or more low HLB surfactants; one or more oils, wherein one or more nanoparticles of a dispersed phase include a lipid bilayer, and wherein ratio of oil to surfactant is between about 0.12:1 to about 3.5:1. Methods of preparing various water continuous dispersion of nanoparticles are also provided.
Abstract:
A circuit interruption device includes at least one constriction zone. The constriction zone provides for interference with arcing of an electrical signal. The device may include at least one expansion zone. The device may include at least one movable component to assist in creation of the at least one constriction zone. A method of fabrication is provided.
Abstract:
The passage of a container along a conveyor is lubricated by applying to the container or conveyor a mixture of a water-miscible silicone material and a water-miscible lubricant. The mixture can be applied in relatively low amounts, to provide thin, substantially non-dripping lubricating films. In contrast to dilute aqueous lubricants, the lubricants of the invention provide drier lubrication of the conveyors and containers, a cleaner conveyor line and reduced lubricant usage, thereby reducing waste, cleanup and disposal problems.
Abstract:
The passage of a container along a conveyor is lubricated by applying to the container or conveyor a lubricant composition comprising a water-miscible silicone material having a silicone emulsion wherein the silicone emulsion contains less than 500 ppm of a triethanolamine salts of alkyl benzene sulfonic acid compounds.
Abstract:
The present invention provides a method of preparing a lipid nanoparticle dispersion using a twin screw extruder. The inventive lipid nanoparticle dispersion includes greater than 25% lipophilic content in the form of lipidic nanoparticles with volume average particle size less than 120 nm dispersed in a continuous aqueous matrix with greater than 0.1 percent of tetrahydrocannabinol.