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President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 5374304 | Special amyloses and their use for producing biodegradable plastics The invention relates to special amyloses for producing biodegradable, clear, transparent and flexible plastic, in particular sheets and films, which a) are swellable, but not soluble, in cold water; b) yield homogenous, flowable quasi-solutions without format... | 12/20/1994 |
| 5312933 | Method of producing symmetrical difatty acid diamides The present invention relates to a process of producing symmetrically structured difatty acid diamines by reacting mixtures of fatty acids or their esters with diamines, isolating the symmetrical difatty acid diamides from the reaction mixture by making u... | 05/17/1994 |
| 5312889 | Hydroxyfatty-acid-based monomers for producing plastics The present invention relates to a new kind of hydroxyfatty-acid-based monomers which are suited for producing plastics and which are obtained by reacting the esters of hydroxyl-group-containing fatty acids or the esters or salts of amino-group-containing... | 05/17/1994 |
| 5304499 | Methods of making pn CdTe/CdS thin film solar cells A method of making pn CdTe/CdS thin film solar cells, in which a transparent TCO layer is deposited as a front contact on a transparent substrate in the form of inexpensive soda-lime glass, and is preferably provided with an ultra-thin indium layer, which... | 04/19/1994 |
| 5302670 | Plastics on fatty acid basis The present invention relates to plastics that can be obtained by reacting unsaturated and/or hydroxyl-group-containing fatty acids or their esters or mixtures of various such fatty acids and esters with bifunctional ester-forming and/or amide-forming com... | 04/12/1994 |
| 5262205 | Process for producing the ion-sensitive probe electrode of a heavy-metal-ion sensor A method of producing an ion sensitive working electrode for a heavy metal ion sensor, the ion sensitive working electrode including a mixture of Ag2 S and MeS in which Me represents a heavy metal to be determined in a solution to be measured, ... | 11/16/1993 |
| 5223747 | Heat dissipating device Heat dissipating devices for electronic component semiconductor chips are provided in the form of channels or grooves which are either integrated in the underside of the semiconductor chip or are formed in an additional thin semiconductor chip which has l... | 06/29/1993 |
| 5206175 | Method for the detection of bis(2-chloroethyl) sulfide or bis (2-chloroethyl) imine The process of detecting the presence on a surface of at least one of bis(2-chloroethyl)sulfide and bis(2-chloroethyl)imine, including (a) providing a solution comprising at least one dyestuff selected from the group consisting of brilliant blue R, guinea... | 04/27/1993 |
| 5165063 | Device for measuring distances using an optical element of large chromatic aberration The method serves for measuring the profile of a rough, reflecting surface as a function of the distance between each point of this profile and a polychromatic light source. This object is reached, e.g., by forming a flat light bundle from the light of th... | 11/17/1992 |
| 5158759 | Reversible storage for media as well as use of the storage A reversible storage of media, which includes a storage core, an intermediate storage, a catalyst and a protective sheathing. With the opening of the protective sheathing, the stored medium is heated in the catalyst layer, which is caused by the resulting... | 10/27/1992 |
| 5149498 | Method of producing tarnish-resistant and oxidation-resistant alloys using Zr and B Method for producing tarnish-resistant and oxidation-resistant sheets, billets, rods, tubes, profiles or wires for tarnish-resistant and oxidation-resistant structural components which tolerate thermal and mechanical stresses, of copper or silver as matri... | 09/22/1992 |
| 5128461 | Molding compound based on starch ether for shaping biodegradable molded parts The invention describes a method of producing a molding compound on the basis of starch and a plasticizer starting product, characterized in that the starch and the plasticizer starting product are simultaneously reacted with ethylene oxide in one and the... | 07/07/1992 |
| 5120500 | Process and device for nonpolluting mass deacidification of books and other paper products Process and device for the nonpolluting mass deacidification of books and other printing and paper products with the predrying of these products by high-frequency radiation in a vacuum, then the application of a neutralization treatment with solutions for... | 06/09/1992 |
| 5040156 | Acoustic sensor device with noise suppression Acoustic sensor device with noise suppression, in particular for sensors arranged on a noise-generating aggregate, using a double sensor (M1, M2) located between a noise source (S) and an object emitting the sound to be picked up, one of the sensors (M1) ... | 08/13/1991 |
| 5019518 | Process for the detection of chemical warfare agents Process for the detection of a chemical warfare agent, in which a detection reagent able to fluoresce is brought into contact with the chemical warfare agent, which reacts with the chemical warfare agent so that the fluorescent light emitted by the detect... | 05/28/1991 |
| 4982648 | Gun barrel cooling arrangement An arrangement for cooling the gun barrel of a combat tank wherein the gun barrel is provided with helical cooling channels on its outer surface, and an insulation layer on at least the inner circumferential surfaces of the cooling channels. This reduces ... | 01/08/1991 |
| 4981425 | Device for ultrasonic atomization of a liquid medium Device which serves to atomize a solid or liquid medium with the aid of a standing ultrasonic wave that is generated between two ultrasonic transmitters. This allows one to tune the standing ultrasonic wave automatically when the temperature of the medium... | 01/01/1991 |
| 4976991 | Method for making a sensor for monitoring hydrogen concentrations in gases A sensor for monitoring hydrogen concentrations in gases, containing a solid electrolyte body, a detector electrode having a surface which is exposable to a gas to be monitored, and a reference electrode, in which the reference and detector electrodes mak... | 12/11/1990 |
| 4927511 | Method and device for breaking a disperse system in an electrochemical cell A method and a device for breaking an aqueous emulsion, wherein the emulsion flows through an electrochemical cell in which the small emulsified droplets combine in or on a working electrode to form larger separable droplets. The method can be applied in ... | 05/22/1990 |
| 4908118 | Sensor for monitoring hydrogen concentration in gases A sensor for monitoring hydrogen concentrations in gases, containing a solid electrolyte body, a detector electrode having a surface which is exposable to a gas to be monitored, and a reference electrode, in which the reference and detector electrodes mak... | 03/13/1990 |
| 4842913 | Sound protection suit A protective suit against sound waves with which it is possible to achieve a considerable reduction of the effects of sound waves on the human body. The suit material is furnished with at least two flexible soundproofing layers, of which at least one laye... | 06/27/1989 |
| 4841139 | Method for testing components of transparent material for surface irregularities and occlusions A method for testing components of transparent material for surface irregularities and occlusions, comprising the steps of dot-scanning the component by moving a light ray completely therethrough; detecting the light which represents flaws in at least the... | 06/20/1989 |
| 4822165 | Device for illuminating components of transparent material in testing for irregularities A device for illuminating components of transparent material by dot-scanning so that the components may be tested for surface irregularities and occlusions which comprises a component rotatably mounted so that the component may be rotated on its axis at a... | 04/18/1989 |
| 4823351 | Device for fast switching between different wavelengths of lasers For fast variation of the wavelengths of lasers, a rotating chopper mirror is provided in the laser resonator. This mirror alternately transmits the light to a grating or deflects it to at least a second grating or to a second mirror. Instead of a chopper... | 04/18/1989 |
| 4818283 | Dispersion hardened copper alloys and production process therefore A process for producing a dispersion hardened copper alloy includes admixing to a copper melt from 0.3 to 15 weight % of molybdenum to provide a mixture which is a melt; superheating the mixture to a temperature ranging from about 200° C. to about 1000°... | 04/04/1989 |
| 4815844 | Device for testing components of transparent material for surface irregularities and occlusions A device for testing components of transparent material for surface irregularities and occlusions which comprises a mechanism for rotatably mounting the component so that the component may be rotated on its axis; a mechanism for generating a light ray whi... | 03/28/1989 |
| 4811238 | Torque measurment system In a system for measuring torque, torsional vibrations and power, emitters and sensors are arranged on at least one rotating shaft. From one of the frequencies (f1 or f2) of the signals (S1 or S2) of the sensors... | 03/07/1989 |
| 4805465 | Arrangement for the production of straight-line symmetrical signals An arrangement for the production of straight-line symmetrical signals from at least two signal generators, which have a periodic structure and which are movable relative to one another, by means of sensors that generate signals corresponding to the posit... | 02/21/1989 |
| 4798332 | Liquid atomizer The liquid atomizer consists essentially of an ultrasonic excitation system coupled with a narrow bending strip of so small thickness that it does not have sufficient inherent stability for linear alignment. In the case of excitation of bending waves with... | 01/17/1989 |
| 4789953 | Circuit arrangement for averaging For averaging in the case of a signal consisting of rectangular pulses, a circuit arrangement which provides the instrumentability for carrying out moving averaging over specific periods of time which are defined by the intervals between the successive pu... | 12/06/1988 |
| 4744947 | Method of dispersion-hardening of copper, silver or gold and of their alloys According to a method of dispersion hardening copper, silver or gold, melts on the basis of the matrix metals with stoichiometric additions of boron and boride-forming metals are superheated by 300° to 750° C. and subsequently subjected to extremely rap... | 05/17/1988 |
| 4728529 | Method of producing diamond-like carbon-coatings Diamond-like, transparent, clear and uncolored carbon coatings with low internal stresses are generated on substrates by plasma discharge from the gas phase. For this purpose, a hydrocarbon gas or a mixture of hydrocarbon gases and pure hydrogen is admitt... | 03/01/1988 |
| 4702930 | Method of producing implantable bone replacement materials Metallic implants with a coating of hydroxyl apatite are described. Hot isostatic pressing permits pore-free compaction of the hydroxyl apatite layer and results in firm bonding of the layer on the metallic core. The surface of the layer is partially dehy... | 10/27/1987 |
| 4637031 | Apparatus for the generation of laser radiation An apparatus for the generation of laser radiation according to the invention comprising a discharge chamber of essentially rectangular cross section made from insulating material, one pair of discharge electrodes between which a gas discharge initiated b... | 01/13/1987 |
| 4635270 | Laser apparatus For a laser system with fast longitudinal gas flow, at least one impeller of the type of runners for tangential blowers with adjacent ring channel is used for the circulation of laser gas. At least two longitudinal pipes merge tangentially into the ring c... | 01/06/1987 |
| 4624001 | Laser apparatus In a laser system in accordance with the gas transport principle, at least one radial blower having diffusor and gas deflecting elements or baffles is provided for the gas circulation. At least two longitudinal tubes, which form together the laser resonat... | 11/18/1986 |
| 4544441 | Method of making a bolometric radiation detector A bolometric radiation detector wherein the electrically-conductive measuring layer is applied to a carrier film which is supported by a frame. To produce a bolometer of this type the carrier film is produced as a layer on a base material, preferably by a... | 10/01/1985 |
| 4512194 | Method and apparatus for controlling or measuring the thickness of material layers In a method of controlling or measuring layer thicknesses, wherein a continuous frequency-modulated ultrasonic signal that periodically scans a frequency band is transmitted and wherein the resultant signal is evaluated. The frequency bandwidth is selecte... | 04/23/1985 |
| 4504954 | Laser apparatus In a laser device designed according to the gas transport or convection principle, the division into parts with different functions is replaced by complete integration of the different functions. In the case of an axial flow laser, the laser tube can be d... | 03/12/1985 |
| 4495375 | MIS or SIS Solar cells The function of the insulating film in MIS and SIS solar cells can also be fulfilled by a semiconductor with a sufficiently large energy gap. The doping of the quasi insulating layer guarantees good fill factors and short-circuit current densities also at... | 01/22/1985 |