Patent application number | Description | Published |
20100051468 | ELECTROLYTE AND METHOD FOR DEPOSITING DECORATIVE AND TECHNICAL LAYERS OF BLACK RUTHENIUM - The production of oxidation-stable and mechanically strong metal layers having a black color presents a particular challenge in the area of electrochemical finishing, especially since there are only a few metals which are suitable for this purpose. A possibility which is not hazardous to health, in contrast to nickel, and is economical compared with rhodium is the electrochemical production of black ruthenium layers. The invention provides an electrolyte and a method using this electrolyte for producing black ruthenium layers on pieces of jewelry, decorative goods, consumer goods and technical articles. The electrolyte is distinguished in that one or more phosphonic acid derivatives are used as a blackening additive. These maintain brightness. The degree of blackness of the resulting black ruthenium layer can be adjusted by the choice of the type and amount of the phosphonic acid derivatives used, while maintaining the desired brightness. | 03-04-2010 |
20110236720 | NOBLE METAL-CONTAINING LAYER SEQUENCE FOR DECORATIVE ARTICLES - The present invention is directed at a decorative article which has a particular noble metal-containing outer layer sequence. The invention further relates to a coating process suitable for this purpose. The layer sequence is characterized in that a palladium-containing bottom layer is followed by an electrolytically deposited alloy of ruthenium and an element of the group consisting of platinum and rhodium. | 09-29-2011 |
20140131209 | ELECTROLYTE AND ITS USE FOR THE DEPOSITION OF BLACK RUTHENIUM COATINGS AND COATINGS OBTAINED IN THIS WAY - The invention relates to a ruthenium electrolyte which is suitable for the deposition of decorative and industrial layers having a particular blackness. The invention further relates to the use of the electrolyte of the invention in a process for the deposition of decorative and industrial layers of ruthenium having a particular blackness (“black ruthenium) on jewelry, decorative goods, consumer goods and industrial articles. The invention therefore likewise relates to corresponding layers and the articles coated in this way. The electrolyte is characterized in that it operates in the weakly acidic to alkaline pH range. | 05-15-2014 |
Patent application number | Description | Published |
20090056699 | Linear fresnel solar arrays and receievers therefor - Described herein are solar energy collector systems, components for solar energy collector systems, and methods for installing solar energy collector systems. The components for solar energy collector systems include but are not limited to solar radiation absorbers, receivers, drives, drive systems, reflectors, and various support structures. The solar energy collection systems, solar radiation absorbers, receivers, drives, drive systems, reflectors, support structures, and/or methods may be used, for example, in LFR solar arrays. Improved solar radiation absorbers, receivers and related methods are described here. | 03-05-2009 |
20090056701 | Linear fresnel solar arrays and drives therefor - Described herein are solar energy collector systems, components for solar energy collector systems, and methods for installing solar energy collector systems. The components for solar energy collector systems include but are not limited to solar radiation absorbers, receivers, drives, drive systems, reflectors, and various support structures. The solar energy collection systems, solar radiation absorbers, receivers, drives, drive systems, reflectors, support structures, and/or methods may be used, for example, in LFR solar arrays. Drives and drive systems are described herein that may provide improved rotational positioning, movement, and/or rotational positional sensing. For example, drives and drive systems are provided which allow operation through a variable frequency drive. The components and methods described herein may be used together in any combination in a solar collector system, or they may be used separately in different solar collector systems. | 03-05-2009 |
20090056703 | Linear fresnel solar arrays and components therefor - Described herein are solar energy collector systems, components for solar energy collector systems, and methods for installing solar energy collector systems. The components for solar energy collector systems include but are not limited to solar radiation absorbers, receivers, drives, drive systems, reflectors, and various support structures. The solar energy collection systems, solar radiation absorbers, receivers, drives, drive systems, reflectors, support structures, and/or methods may be used, for example, in LFR solar arrays. | 03-05-2009 |
20090084374 | Solar energy receiver having optically inclined aperture - The present application provides a solar energy receiver comprising an effective absorption aperture that is biased, so that solar radiation from a certain direction can be preferentially absorbed by a solar radiation absorber in the receiver. The effective absorption aperture is inclined relative to a physical aperture. Thus, in an elevated receiver comprising a downward facing physical aperture defining a plane that is relatively parallel to ground, the effective absorption aperture of the receivers described herein may be inclined relative to ground, but the physical aperture may remain generally parallel to ground. The biased receivers may be used in Linear Fresnel Reflector solar arrays. | 04-02-2009 |
20110005513 | LINEAR FRESNEL SOLAR ARRAYS - Disclosed herein are examples and variations of solar energy collector system comprising an elevated linear receiver ( | 01-13-2011 |
20130220303 | CENTRAL RECEIVER SOLAR SYSTEM COMPRISING A HELIOSTAT FIELD - The aim of the invention is to build central receiver solar power plants in which the heliostat fields can be used more efficiently. To achieve said aim, a heliostat field consisting of a near field having a uniform reflector surface density ρ of more than 60% is preferably combined with a far field whose reflector surface density ρ decreases as the distance from the receiver increases. The invention also comprises central receiver solar power plants which consist exclusively of a near field having a uniform reflector surface density ρ of more than 60%. The high reflector surface density ρ in the near field and in areas of the far field is achieved by the use of heliostats having rectangular reflectors and a rigid horizontal axle suspension (FHA) or, alternatively, by heliostats having rectangular reflectors and a rigid quasipolar axle suspension (FQA). The heliostat field concentrates the solar radiation on a receiver whose target surface, aperture, thermal absorber or photovoltaic absorber has a normal vector which is directed downward to the heliostat field that extends below the receiver in the directions North, East, South and West. The receiver is mounted in a suspended manner to a support structure that extends over the heliostat field. | 08-29-2013 |