An improved apparatus for generating a powder stream to be applied to a work piece (22) includes a powder reservoir (12), a mixing chamber (14), a powder metering valve (36,38), a transfer conduit (16), and a nozzle (18). The metering valve allows control of the powder flow from the reservoir into the mixing chamber where it is dispersed with and entrained in an air flow entering the chamber throu...

Two (or more) tubes (10a, 10b) are formed in side-by-side relation joined together at a juncture (10c) including a plurality of performed members (6) bonded to and within the juncture (10c) at spaced locations along the longitudinal axes of the preformed members and of the juncture. Each of the preformed members (6) includes a pair of flow-reducing, groove formations (44, 46) one on each side of t...

An implantable device having a body of matrix material made up of insoluble collagen fibrils, and disposed therewithin: (a) a plurality of vertebrate cells; and (b) a plurality of microspheres each of which consists primarily of one or more of the following materials: collagen, polystyrene, dextran, polyacrylamide, cellulose, calcium alginate, latex, polysulfone, or glass.; L'invention concerne un...

Das Zwischenwirbel-Implantat umfasst einen an seiner Deck- und Grundfläche (11, 12) geöffneten rahmenförmigen Käfig (1) mit zwei Seitenflächen (13, 14) einer Frontwand (15) und einer Hinterwand (16). Ein Rotationskörper (2) ist drehbar im Käfig (1) gelagert, wobei die Mantelfläche des Rotationskörpers (2) mit einer spiralförmigen Struktur (21) versehen ist. Die spiralförmige Struktur (21) ragt übe...

Das Zwischenwirbel-Implantat besteht aus einem, einen Hohlraum (20) umschliessenden, rahmenförmigen Käfig (1) mit einer Deck- und Grundfläche (11, 12), zwei Seitenflächen (13, 14), einer Frontwand (16) und einer Hinterwand (15). Die Deck- und Grundfläche (11, 12) ist mit einer Mehrzahl von Perforationen (24) versehen, deren Gesamtfläche 40 bis 55 % der Gesamtfläche der Deck- und Grundfläche (11, 1...

Improved devices (1) for blood separations are provided based on the use of hollow fiber membrane arrays (6) in extra-lumenal crossflow filtration. Blood is processed extra-lumenally across an ordered array of microporous hollow fibers (6) to separate cells from plasma. By use of extra-lumenal crossflow filtration with suitably oriented fibers, the separation device is more efficient than existing...

Cyclic alpha -perfluoro-di-p-xylylenes having the structure (I), wherein G is an aromatic nuclear substituent group selected from the group consisting of chlorine and fluorine (m = 4), and perfluoroalkyl groups having the formula CnF2n+1 (m = 1 to 4), are effective for the production of low dielectric constant alpha -perfluoro-p-xylylene polymer films.; Cette invention concerne des composés alp...

This patent relates to the obtaining of two antitumor agents (IEG1 and IEG2) tested under experimental conditions. These bioproducts are isolated through fractionation of pig intestinal mucosa cells, extraction with acidic acid, precipitation with ethyl alcohol, ultrafiltration, lyophilization and gel filtration. IEG1 is a peptide comprising 33 amino acid residues bound to 2 guanile residues with ...

A peptide containing (A) a peptide consisting of an amino acid sequence rich in basic amino acids and (B) another peptide consisting of an amino acid sequence containing at least two consecutive hydrophobic amino acid residues wherein the peptide (B) is bonded directly or via an amino acid sequence consisting of several amino acids to the C-terminus of the peptide (A). This novel peptide has an ex...

A water-redispersible powdered composition produced by mixing then drying an emulsion of at least one water-insoluble film-forming polymer, at least one main surfactant and at least one water-soluble compound, is disclosed. The composition includes an emulsion of at least one water-insoluble film-forming polymer prepared from ethylenically unsaturated monomers; at least one main surfactant with a ...

A refrigerant comprising component A and component B, in which component A with non-inflammability or incombustibility is 10-95 wt.%, and one or more compounds selected from the group consisting of iodotrifluoromethane, pentafluoroethane, 1,1,1,2-tetrafluoroethane and chlorodifluoromethane; component B with flammability is 5-90 wt.%, and one or more compounds selected from the group consisting of ...

An aqueous composition for coating a metallic substrate that is prepared by mixing at least one silane (preferably at least two silanes), at least about 20 weight percent phosphoric acid based on the total weight of the composition, and water, wherein the composition is substantially free of an organic solvent and a chromium-containing compound. The pH of the composition must not be above 3. The c...

Eine Galvanikanlage weist einen Galvanisierbehälter und einen Versorgungsbehälter auf, zwischen denen der Elektrolyt zirkuliert. Im Versorgungsbehälter erfolgt dabei die Ergänzung des Metallgehaltes des Elektrolyten durch eine lösliche Anode, der eine Hilfskathode zugeordnet ist, die sich in einem Hilfskatholyten befindet, der vom Elektrolyten über ein metallionen-undurchlässiges Diaphragma abgetr...

Gegenstand der Erfindung ist ein schallabsorbierendes und schalldämmendes Bauelement aus Beton mit einer speziellen Hydrophobierung des Spritzbereiches und die Verfahren zur Herstellung dieser Bauelemente.; The invention concerns a sound-absorbent and sound-damping structural element made of concrete with special waterproofing provided in the region subject to splashes. The invention further conce...

A door locking system including a plurality of doors each having a mechanical key operated door lock, each door lock including a lock cylinder including a lock body defining an elongate bore, a tumbler rotatably mounted in the elongate bore of the lock body and having a keyway, and a pin assembly associated with the tumbler and with the lock body for preventing rotation of the tumbler with respect...

A digital signal controller is provided having modular operation. Specifically, the digital signal controller includes a sequence control unit and a sequencer for producing a sequence of macro instructions and a sequence of micro instructions, respectively. Changes in the number or order of macro instructions may not require changes to the number and order of micro instructions and vice versa. As ...

An apparatus for testing electro-mechanical storage devices, such as disk drives, is provided. A testing device (14) in a digital computer (10) selects test parameters from an array of test parameters stored in the digital computer (10). A random number generator is used in the selection of the test parameters. When errors occur, the array of test parameters is dynamically adapted during testing t...

Multi-level structures including a first layer with a parylene polymer layer deposited thereon. The parylene polymer layer has structure (I), wherein m is an integer having a value of 0, 1, 2, 3 or 4, and z is greater than 1. G is a halogen, an alkyl group, a cyclo hydrocarbon, an alkylene group or an alkylyne group having the general formula CnHyXw. X is a halogen, and n is an integer greater tha...

A booster device which amplifies received waves and transmits the amplified received waves is composed of a reception antenna, a carrier synthesizer, a transmitter, a transmission antenna, and a parameter controller. The carrier synthesizer generates a replica signal by multiplying a canceling signal by a cancel parameter, combines the replica signal with the received signal in at least one of a r...

PCT No. PCT/SE96/01400 Sec. 371 Date Jun. 23, 1998 Sec. 102(e) Date Jun. 23, 1998 PCT Filed Oct. 31, 1996 PCT Pub. No. WO97/16136 PCT Pub. Date May 9, 1997A method for inserting a plug into a hole formed in a cranial bone by rotating the plug to insert. The plug having a body with a first end, a second end, and a peripheral surface interposed there between, the first end is slightly larger than th...