BROCAS DE PERFURAçãO DE TERRA A presente invenção refere-se a composições e métodos para formar um corpo de broca para uma broca de perfuração de terra. O corpo de broca pode compreender partículas duras, onde as partículas duras compreendem pelo menos um carboneto, nitreto, boreto e óxido e suas soluções sólidas, e um aglutinante que aglutina as partículas duras entre si.O aglutinante pode compre...

SISTEMA DE PERFUSãO RáPIDA E TéCNICA DE SUJEIçãO DE PLACA UTILIZANDO UM SISTEMA DE CáMARA DE INTERFACE TENDO EXIGêNCIAS DE BAIXO VOLUME E ELEVADO RENDIMENTO. A presente invenção refere-se a um sistema para realizar perfusão rápida para as técnicas de sujeição de placa útil no estudo do efeito de compostos sobre canais de transferência de íon em tecido biológico. A invenção inclui adicionalmente co...

A biosensor is provided that comprises a plate element with a pre-determined reaction zone and a recess positioned adjacent to the reaction zone. The biosensor also comprises a reagent that is positioned on the reaction zone. In preferred embodiments, the recess circumscribes at least a portion of the reaction zone.

A central control system controls peak power of multiple air conditioners that includes indoor units installed in rooms of a building and an outdoor unit for controlling refrigerant circulation. A central controller is connected to the multiple air conditioners via a network to perform central control or monitoring of operations of the air conditioners. The central controller performs peak power c...

The present invention provides a motorcycle including a front wheel, a rear wheel, a frame supported by the front and rear wheels, a crankcase, a transmission case coupled to the crankcase, a transmission access door coupled to a side of the transmission case, and a dipstick assembly coupled to the side of the transmission case. The dipstick assembly is positioned between the crankcase and the tra...

A suspension system for a backpack includes a rocker arm pivotally connected to the backpack. A first hip stay has a first end connected to a first end of the rocker arm and a second end opposite the first end. A second hip stay has a first end connected to a second end of the rocker arm and a second end opposite the first end. A waist belt is attached to the second end of the first hip stay and t...

In a method for making an article, in particular a card of plastic or paper, presenting a secret code hidden by a layer of opaque, removable material, a first application device applies the secret code on the article, a second application device places the layer of opaque removable material over the secret code and a marking device impresses on the article an anti-counterfeit mark; the latter is m...

A high performance main bearing cap has particular surfaces densified for improved fatigue crack resistance. The surfaces densified are the bolted face inside of a perimetral margin and outside of bolt head interface areas around the main bolt holes, the surfaces of the main bolt holes and the side bolt hole threads. Preferred methods of densification are single needle programmable pattern peening...

A powder metallurgy corrosion and wear resistant tool steel article, and alloy thereof. The article is manufactured by hot isostatic compaction of nitrogen atomized, prealloyed high-chromium, high-vanadium, high-niobium powder particles. The alloy is characterized by very high wear and corrosion resistance, making it particularly useful for use in the manufacture of components for advanced bearing...

A tire building drum and a method of building a tire carcass is disclosed. The tire building drum has a center section comprised of a plurality of segments that are radially and axially movable. The building drum further comprises shoulder sections that are axially movable. The shoulder sections include radially expandable bead locks. The method employs the steps of applying one or more carcass la...

The invention relates to the addition of alpha-methyl styrene, isobutanol and/or isopropanol to reduce vapor pressure, improve k-factor, enhance the solubility of the blowing agent in the premix and/or improve the processing characteristics of polyurethane and polyisocyanurate closed-cell foams prepared with a blowing agent comprising a hydrofluorocarbon selected from the group consisting of 1,1,1...

A polyurethane foam can be flame retarded by the incorporation therein of a flame retardant blend that comprises: (a) a non-oligomeric non-halogenated organophosphorus flame retardant (e.g., a phosphate ester) that is adapted for use in a polyurethane foam formulation; and (b) an oligomeric organophosphorus flame retardant (e.g., a phosphate ester) having a phosphorus content of no less than about...

A method and a device for course prediction in motor vehicles, which have a position-finding system for objects situated in front of the vehicle, where a function describing the path of the roadway is calculated on the basis of measured distance and angular data, in that several fixed targets are identified and tracked and supplied (subjected) to a statistical evaluation, a plausibility criterion ...

This invention provides a novel, rapid method and device for determining the relative phase retardation of different layers of a multi-layered specimen, which is related to the thicknesses of its layers and walls, and the orientations of its optical axes. An intact wood pulp fibre is a typical multi-layered birefringent specimen. This new method is based on the change of polarization of polarized ...

In a first aspect, a first method is provided for reducing memory errors. The first method includes the steps of (1) detecting at least one error in data output from a first physical memory unit (PMU) of a memory; (2) detecting at least one error in data output from a second PMU of the memory; and (3) setting a bit indicating respective data output from a plurality of PMUs includes errors. Numerou...

A quilt top mattress comprises a spring unit and a cover fabric layer surrounding the spring unit. A quilt top layer overlies the fabric layer. The quilt top layer comprises an outer fabric layer, a fiber batt layer, a convoluted foam cushion and an inn er fabric layer, all being secured together by stitching to define a select quilt pattern. The convoluted foam cushion has a planar outer surface ...

In heat-shrinkable polyester films, the content of 1,4-cyclohexane dimethanol is 10 to 50 % by mole based on the polyhydric alcohol component a nd that the heat shrinkage factors of a 10 cm square sample of the films in (A) hot water of 75 .degree.C, (B) hot water of 85 .degree.C, and (C) hot water of 9 5 .degree.C are 30 to 40 %, 50 to 60 %, and 65 to 77 %, respectively. The films can be produced...

SISTEMA E MéTODO PARA REALIZAçãO DE AçõES DE UM LEILãO ATRAVéS DA INTERNET. A presente invenção refere-se a um sistema e método para realização de ações de um leilão através da internet que se utilizam de mecanismos para fazer com que o valor de venda do produto vendido no leilão seja o mais próximo possível do preço de mercado do referido produto. O sistema compreende (a) um banco de dados inclui...

A pitch sensor tool for a stem boring or drilling machine, for example a sub-surface directional drilling machine having a stem and a drilling head. The pitch sensor tool includes a generally cylindrical housing adapted to be mechanically coupled to the stem and to the drilling head, and a pitch sensing device disposed in or on the housing and adapted to transmit a reading of the second pitch of t...

A yaw-rate sensor having a resonant driving frequency and a resonant Coriolis frequency. In addition, the yaw-rate sensor has at least one operating voltage, of which the resonant Coriolis frequency is a function. The resonant Coriolis frequency is adjusted to the resonant driving frequency with the aid of an adjustment voltage. A change in the resonant Coriolis frequency as a result of a change i...