Robert Boschgmbh

Other

Wolfgang Grothe

Klaus Brill

Claus Schmidt

Matthias Klauda

Klaus Voigtlaender

Werner Gruenwald

Martin Hueppauff

Dieter Fenske

Guenter Schmid

Stefan Mueller

Eberhard Traub

Alfred Ortlieb

Friedrich Scholl

Electroluminescent layer arrangement with organic spacers joining

Cooling apparatus for a high-frequency receiver

The superconductor bandpass filter for electromagnetic signals includes a substrate (5); striplines (1) made of a type II superconductive material arranged on the substrate and a tuning device (2) for tuning the superconductor bandpass filter consisting of a device for changing a magnetic penetration depth .lambda.(T) of the striplines (1), so as to change the effective length, effective width and effective spacing of the striplines and thus to change the center frequency and/or the bandwidth. The device for changing the magnetic penetration depth .lambda.(T) of the striplines (1) advantageously includes a device for exerting a mechanical force or stress on the striplines and/or a device for varying a magnetic field applied to the striplines.

Superconductor bandpass filter having parameters changed by a variable

The planar superconducting resonator includes a substrate (1), a symmetrically shaped stripline (2) applied to the substrate (1) in which two orthogonal electromagnetic modes are excitable and including a symmetry perturbation for coupling the two orthogonal electromagnetic modes, an additional stripline (5) arranged on the substrate in the vicinity of the symmetry perturbation, a Josephson junction (3) arranged between the symmetry perturbation and the additional stripline (5) and a device for generating and controlling a magnetic field at the Josephson junction (3) so that the degree of coupling between the two orthogonal electromagnetic modes is varied. The Josephson junction (3) is formed by a non-superconducting layer (4) arranged between the symmetry perturbation and the additional stripline (5).

Dual mode planar superconductive resonator and filter including a

Auxiliary starter, particularly for diesel engines

A planar filter is proposed in which a plurality of striplines arranged next to one another on a substrate are supplemented by an overcoupling stripline which couples to one another two striplines which are not immediately neighboring. The length of the overcoupling stripline is an integral multiple of a half wavelength of the center frequency of the filter.

Planar filter having an overcoupling stripline an integral multiple of a

A heat-retention device for windows, doors or the like is proposed, in the form of a curtain (10) or roller shade, which has a plastic foil as a carrier, to which at least one vapor-deposited or atomized metal coating having a high reflective capacity in the long-wave heat radiation range is applied. The plastic foil is subdivided at least in some areas, for instance by perforation (11) or by the joining together of narrow strips (15, 16), in order to alter its mechanical properties with a view to reducing its elasticity. The result is a structure which is substantially better and esthetically more pleasing when used in the form of curtains or roller shades.

Heat retention device for windows, doors and the like

A substantially transparent multilayer web with high reflectivity in the far infra-red spectral range based on a polyester foil carrier and utilizing a metal layer, preferably of silver, has dielectric protective layers on both sides of the silver layer containing bismuth oxide, which has a desired corrosion-protection effect, as well as desirable optical properties. The bismuth content is between 10 and 85% by weight of the total metal content of the dielectric layer. Another oxide is used, either in a separate layer or as an admixture to reduce the effect of ultraviolet light.

Multilayer web for reducing loss of radiant heat

To provide a heat barrier structure, for example a polyester or glass substrate (11, 21, 31) which includes a metal reflective layer (13, 25, 33) has, additionally, a dielectric cover layer applied, for example, in an argon-oxygen-nitrogen atmosphere, which forms a dielectric layer thereover which includes a nitride, so that the cover layer, or the layer or layers immediately adjacent the metal, will have improved resistance against external mechanical, chemical and electrochemical influences and specifically improved corrosion resistance, while retaining excellent light transmissivity characteristics and high reflection to long infrared heat radiation. The invention also provides a heat barrier structure in which a corrosion inhibiting protective layer is positioned between the transparent substrate and the metal reflective layer and the at least one dielectric cover layer. The invention also provides a heat barrier structure wherein the side of the transparent substrate which is not covered by said metal layer and said dielectric cover layer is covered by an anti-reflection layer to provide a structure having improved light transmission characteristics.

Multiple-layer heat barrier

A check valve having a plastic cylindrical body having an axial inlet and outlet, longitudinal guide ribs on the inside of the body, a spring member urging a valve ball against the inlet opening, a guide pin inside of the spring member, and a screen member covering the inlet opening.

Check valve

To improve the corrosion resistance of a metallic layer which is being burned off by electrodes, and decrease the contact pressure of the electrodes by eliminating metallic residues upon an electrical discharge between an electrode and a metallic surface, the metallic surface layer is a two-metal system having a top layer of aluminum and an intermediate layer of nickel, the metals, upon electrical discharge in air, reacting in an exothermal reaction if the energy level of the electrical discharge between the electrode and the metallic surface is sufficient to initiate the reaction.

Recording medium for thermographic recording of data items

A carrier medium for recording comprises a ribbon of insulating material and a metal coating deposited thereon in a thickness of at least 250 A which coating is adapted to be electrically seared for producing writing trackings. The coating is predominantly composed of vapor deposited aluminum of which at least 15% by weight is in the form of aluminum oxide, aluminum oxide hydrate or a combination of these two compounds. The content of oxygen-attached aluminum in the metallic coating is determined by first measuring the total aluminum contents per surface unit in a definite size specimen of the coating, then placing the specimen into alkali to evolve hydrogen in an amount equivalent to the metallic aluminum present in the coating, whereupon the amount of hydrogen developed is determined by gas chromatography.

Metal-coated carrier for recordings and process for determining the

To permit coating of wide area work surfaces, such as wide tapes, ribbons and the like, a vaporization substance is retained in an elongated trough, transverse to the direction of movement of the ribbon. Alongside the trough, the pole shoes of magnets are placed to provide a magnetic shield transverse to the longitudinal extent of the trough, and with respect to the direction of movement of the web to be coated. An electron beam is then impinged on the surface of the vaporization substance in the trough at an angle between zero and 90.degree., preferably between 30.degree. and 60.degree. and desirably in the order of about 45.degree. with respect to the direction of the magnetic field, so that the magnetic field and the electron beam will interact to deflect the electron beam to assume a spiral path which penetrates the surface of the vaporization substance. Preferably the characteristics of the electron beam and the magnetic field are so matched that primary electrons dispersed from the vapor, or from stray gases are captured in the magnetic field, and returned to the vaporization substance; likewise, electrons liberated at the impingement points are deflected back to the vaporization substance.

Growing community of inventors

Tiefenbronn, Germany

Wolfgang Grothe