Abstract: The object comprises a glass-metal film (1) with a metal matrix (2) which has solidified in an at least partly glass-like form and which may comprise hard particles (3, 3a) in the form of primary precipitates from the molten mass. The glass-metal film (1) is provided on at least one side (4) with a top layer (5) comprising a hard material which is harder than the glass-metal film (1). The top layer (5) may be formed by a base layer (7) with embedded hard material particles (8), e.g. of diamond or cubic boron nitride, or by a homogeneous hard material, e.g. diamond-like carbon. The result is a surface quality which can be separately influenced by the composition of the alloy of the glass-metal film (1). The object may be formed either as a parting tool or as a structural part with special wear and/or sliding properties.
Type:
Grant
Filed:
October 9, 1992
Date of Patent:
February 27, 1996
Assignee:
Gebrueder Sulzer Aktiengesellschaft
Inventors:
Giorgio Arnosti, Werner Straub, Erich Bolle
Abstract: A rocket motor assembly is provided with multiple pintle nozzles and a controller for adjusting the pintle position in the nozzles to generate a thrust differential, while maintaining the combustion pressure at equilibrium pressure by maintaining the sum of the throat areas of all of the pintle nozzles constant, for example. In this manner, proportional thrust control and very high response times are achieved. The controller also includes a pressure correction circuit that senses any difference between the actual combustion chamber pressure and the selected equilibrium pressure upon which the thrust differential was based, converts that to an error value, and sends a command signal to each pintle actuator so that each pintle position is adjusted an equal amount to compensate for the sensed pressure difference and maintain the combustion chamber pressure at the selected equilibrium pressure.
Type:
Grant
Filed:
November 4, 1993
Date of Patent:
October 10, 1995
Assignee:
Aerojet General Corporation
Inventors:
Joseph W. Morris, Russell W. Carlson, Kevin L. Peterson, Edward M. Reich
Abstract: Twisted wire pairs are used to interconnect units of a data processing system with connectors that incorporate electromagnetic interference suppression devices in the form of common mode ferrite choke.
Abstract: A carbon brush for a collector has a recess which is filled with a layer of galvanically applied, copper plating, in which at least one longitudinal wire is provided as a connecting conductor, which is mechanically and electrically linked with the brush through being embedded in and completely surrounded by the copper layer.
Type:
Grant
Filed:
December 11, 1990
Date of Patent:
November 23, 1993
Assignee:
Hoffman & Co. Elektrokohle Gesellschaft m.b.H
Inventors:
Peter Hoffmann, Johann Hoell, Herbert Grabner, Klaus Reiser