116results about How to "Long retention" patented technology

Disclosed are a variety of arcuate-shaped inserts for drill bits, and in particular, for placement in rolling cone cutters of drill bits. The arcuate inserts include 360° or ring-shaped inserts, as well as inserts of smaller arcuate length. The arcuate inserts are suitable for use in all surfaces of the rolling cone cutter, and in other locations in drill bits, and may have specialized cutting surfaces and material enhancements to enhance their cutting duty performance. Certain arcuate inserts may include stress relieving discontinuities such that, upon assembly into the cone or during drilling, the arcuate inserts may fragment in a controlled and predicted manner into shorter arcuate lengths.

Particles, compositions, and methods that aid particle transport in mucus are provided. The particles, compositions, and methods may be used, in some instances, for ophthalmic and / or other applications. In some embodiments, the compositions and methods may involve modifying the surface coatings of particles, such as particles of pharmaceutical agents that have a low aqueous solubility. Such compositions and methods can be used to achieve efficient transport of particles of pharmaceutical agents though mucus barriers in the body for a wide spectrum of applications, including drug delivery, imaging, and diagnostic applications. In certain embodiments, a pharmaceutical composition including such particles is well-suited for ophthalmic applications, and may be used for delivering pharmaceutical agents to the front of the eye and / or the back of the eye.

A cooling system for a turbine airfoil of a turbine engine has a multi-pass serpentine flow circuit providing a flow path from a forward cooling flow entry at the root and exhausting towards the trailing edge through a series of chord wise micro channels extending from the rearward pass of the multi-pass serpentine circuit to pressure side bleed slots, each having a forward pressure side lip and opening onto the pressure side adjacent the trailing edge. The micro channels can be formed by a series of spaced fins stacked span wise and extending between the outer wall on the pressure side and the outer wall on the suction side and extending chord wise from the rearward pass to the trailing edge. At least two trip strips can extend from sides of the fins into the micro channels and be staggered relative to trip strips extending into the micro channel from an adjacent fin, whereby turbulent flow levels in the micro channels are increased.

A method of baking bread in a high temperature bake oven, comprising initiating a heating element in a lower portion of the bake oven, locating the bread on a first pizza stone located above the heating element, directing circulating heated air in the oven with a baffle around the first pizza stone to between the first pizza stone and a second pizza stone located above the first pizza stone, and directing the circulating heated air in the oven rapidly from between the first and second pizza stones out of the oven through an opening in the front of the oven.

Methods for producing devolatilized and / or activated carbon in a reactor or reaction vessel of a heat treatment system from a suitable carbonaceous feedstock by introducing the feedstock into the reactor tangentially at a rotational velocity of at least 90 RPM. The methods include the steps of providing a combination of conveying means and a gas flow having various compositions and creating distinct carbonaceous feedstock material flow patterns and process conditions such that the feedstock is conveyed through the reactor or reaction vessel and heated via combustion, thereby producing activated carbon or other heat-treated carbons while concurrently avoiding adverse reaction conditions. Single and two-stage heat treatment systems may be used to heat a carbon feedstock, to which one or more industrial minerals may be added to co-produce compositions such as lime with the heat-treated carbon.

An apparatus (1) for administering a gas to a person or an animal, is provided with a chamber (9) for receiving a quantity of gas to be administered. The chamber is provided with a gas line (3) for supplying gas from a source to the chamber (9) and elements for pressurizing the gas in the chamber. The chamber (9) is connected to a breathing tube (5) for supplying pressurized gas from the chamber (9) to the person or the animal, wherein the breathing tube (5) connects to a discharge channel (26), for discharging gas exhaled by the person or the animal, via a valve (11), which restricts the flow of exhaled gas from the breathing tube (5) to the discharge channel (26) in order to build up gas pressure in the breathing tube (5) during exhalation.

A device for dispensing into the flushing water and / or for mixing with the flushing water detergent and / or sanitizing and / or deodorant products, in toilet bowls or hydraulic and sanitary fixtures in general. The device comprises a supporting structure provided with engagement means which can engage the hydraulic and sanitary fixture in order to support the supporting structure in a region of the fixture that is affected by the flushing water flow. The supporting structure supports rotatably, about a rotation axis, at least one rotating element, which interacts with the flow of flushing water in order to mix detergent and / or sanitizing and / or deodorant products introduced in the flushing water and / or adjust the dispensing of detergent and / or sanitizing and / or deodorant products connected to the supporting structure and / or vary the orientation of the flow of flushing water conveyed onto detergent and / or sanitizing and / or deodorant products connected to the supporting structure. The detergent and / or sanitizing and / or deodorant products are external to the rotating element.

Disclosed is a method of preparing a biocide having improved durability of its biocidal activity as well as disinfection efficiency at an initial stage, comprising the steps of: (a) preparing stabilized alkali or alkaline earth metal hypochlorite having a pH at least 11 by mixing a chlorine oxidant including alkali or alkaline earth metal hypochlorite with a stabilizer in an alkali solution; (b) preparing a bromide ion source; and (c) adding the bromide ion source prepared in step (b) into the stabilized alkali or alkaline earth metal hypochlorite prepared in step (a). Also, a method of controlling the growth of microorganisms using a biocide prepared by the method of the present invention is disclosed.

A diamond impregnated drill bit features layered encapsulation of the diamond grit where the innermost layer is hardest or most abrasion resistant while succeeding layers are generally softer and less wear resistant. This can be accomplished by manipulating several variables in the encapsulation layers such as particle size or hard particle concentration. The outer layers can have added binder to make them softer. The encapsulated grit can be sintered or pre-sintered to make it less friable when handled.

A control device and a method for monitoring wear parts for printers and copiers is provided. The control device includes a counter device with which the replacement intervals or, respectively, the maintenance intervals for individual wear parts are monitored. The replacement and maintenance intervals can be individually set, so that they can be matched to the respective use conditions of the printer.

The present invention provides a mass spectrometry capable of high-efficiency and high-throughput ECD. An electron source and a two-dimensional combined ion trap in which a magnetic field along and generally parallel to a central axis is applied are used, thereby to achieve the foregoing object. First, precursor ions are trapped. By adopting the two-dimensional combined ion trap, it is possible to obtain a high ion trapping efficiency upon being injected and trapping. Subsequently, electrons are made incident thereon in such a manner as to be wound along the central axis to which no radio frequency is applied by using a magnetic field. For this reason, it is possible to allow energy-controlled electrons to reach the precursor ions. It is possible to implement a mass spectrometer capable of avoiding heating due to a radio frequency electric field, and effecting high-throughput / high-efficiency ECD.

The present application relates to optimized IgG immunoglobulin engineering methods for their generation, and their application, particularly for therapeutic purposes.