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| Number | Title | Issue Date |
| 5642978 | Device for handling disk-shaped objects in a handling plane of a local clean room A device for handling disk-shaped objects in a handling plane of a local clean room has the object of ensuring process steps preceding or following the processing and inspection of the disk-shaped objects under the conditions of a local clean room with th... | 07/01/1997 |
| 5617250 | Radiation projection arrangement with integrated radiation indicator An arrangement is produced for protection against harmful effects of radiation and for indicating such radiation which can preferably be designed as a viewing window or as goggles and can be used for protecting the eyes from injury due to high-intensity e... | 04/01/1997 |
| 5605428 | Device for indexing magazine compartments and wafer-shaped objects in the compartments A device for indexing magazine compartments of a magazine and wafer-shaped objects contained therein to ensure precise access of the removing and charging device in any given predetermined plane of the magazine regardless of dimensional tolerances. An opt... | 02/25/1997 |
| 5601484 | Device for transporting wafer magazines In order to transfer a magazine from a depositing position to a processing station, a linear drive for a rigid gripper arm is attached to a supporting column, an air passage opening being formed by the space between the supporting column and an elevator d... | 02/11/1997 |
| 5575081 | Device for transporting magazines for molding wafer-shaped objects The object of a device for transporting magazines for holding wafer-shaped objects is to ensure an exchange of gases within a SMIF box to the required extent at low cost and in an effective manner with respect to time in conformity to the working regimen ... | 11/19/1996 |
| 5563345 | Device for ultrasonic identification of fingerprints A device for identifying fingerprints by use of ultrasound having an electronic evaluating circuit, a hollow cylinder of length L with a cover and a base plate, wherein the ultrasonic speed through the liquid equals c' and the cover is made from a materia... | 10/08/1996 |
| 5541855 | Device for testing unset concrete and mortar A rotating testing device can be connected to a base unit. A temperature sensor can also be connected to the base unit. The testing device has probe heads. The probe heads are immersed and rotated in the liquid concrete and the force required for rotation... | 07/30/1996 |
| 5521764 | Device for lateral adjustment of lenses in a high-performance lens system A device according to the invention enables a high-precision adjustment of lenses or lens groups in a mounted high-performance lens system at any time. The lens or lens group to be adjusted is fixed in a lens mount which is held in a frictional engagement... | 05/28/1996 |
| 5459571 | Multiple control frequency phase modulator in phase modulated interferometer precision distance measuring system A phase-modulated interferometer has improved control and signal processing. Superimposition signals capable of evaluation in a phase-modulated interferometer without a complicated sawtooth control of the phase modulator are attained, in that two sinusoid... | 10/17/1995 |
| 5450195 | Phase-modulated interferometer for evaluating phase displacement resulting from charges in path length A phase-modulated interferometer with novel control and signal processing utilizes superimposition signals capable of evaluation in a phase-modulated interferometer without complicated control of the phase modulator. A sinusoidal control signal with a mod... | 09/12/1995 |
| 5440140 | Method and arrangement for determining an at least approximately circular contacting surface using incoherent light and a film waveguide A method and arrangements for determining an at least approximately circular contacting surface is disclosed. The primary object of finding a simple way of objectively determining the contacting surface of a deformable medium on a plane surface with high ... | 08/08/1995 |
| 5408327 | Process and arrangement for photothermal spectroscopy A process and arrangements for photothermal spectroscopy (thermal wave analysis) by the single-beam method with double modulation technique. A single-beam method is developed making use of the advantages of double modulation technique in detecting the pho... | 04/18/1995 |
| 5270793 | Symmetrical carrier frequency interferometer Symmetrical carrier frequency interferometer for length, distance and speed measurements with beam-deflecting and beam-splitting elements, as well as a fixed reference mirror and a movable measurement mirror. The optically active surfaces positioned downs... | 12/14/1993 |
| 5225069 | Process for the production of oxide ceramic surface films on silicon-containing light metal cast alloys A process for the production of white and black oxide ceramic surface films on silicon-containing light metal cast alloys by plasma-chemical anodic oxidation. An aluminum cast alloy is pickled with nitric acid and hydrofluoric acid and coated by plasma-ch... | 07/06/1993 |
| 5181154 | Circuit arrangement for optimal current generation in processes of electrochemically initiated plasma-chemical layer production A circuit arrangement for current supply in processes of electrochemically initiated plasma-chemical layer production. It is preferably applied in the plasma-chemical conversion of electrochemically pre-formed layers, e.g. on light metals. The output of t... | 01/19/1993 |
