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| Number | Title | Issue Date |
| 4452868 | Metal-chlorine cell with storage of chlorine An electrochemical system including a chlorine positive electrode, such as zinc-chlorine cell, is disclosed which complexes chlorine by utilizing (1) a selected organic compound, such as, for example, n-butyl carbamate, which includes a --NHn R... | 06/05/1984 |
| 4447471 | Method of treating thermoplastic surfaces Activation of thermoplastics, such as polyphenylene sulfide, polysulfone, and polyether sulfone thermoplastics by subjection thereof to bromine is disclosed. The activation process is carried out at relatively low temperatures, such as below 200° F. and ... | 05/08/1984 |
| 4439500 | Gas switch The disclosure depicts a novel gas switch comprising a membrane having at least one passageway separating a first gas containing region from a second gas containing region. The gas switch also comprises a liquid having a low vapor pressure contained at le... | 03/27/1984 |
| 4414852 | Automatic zero balance circuit An automatic zero balance circuit for nulling the initial offset signal received from a test transducer. A quadrature oscillator powers a carrier transducer with the phase reference signal. A summing circuit receives the return signal from the transducer ... | 11/15/1983 |
| 4329635 | Stepper motor damping circuit A method and an apparatus is disclosed for electrically damping the rotation motion of a stepper motor. The voltage of the non-energized side of the motor windings is monitored and compared with the energized side. Once the voltage on the non-energized si... | 05/11/1982 |
| 4323632 | Metal composites and laminates formed therefrom A metal composite comprising a substrate having a uniformly, mildly etched surface of an aluminum alloy, e.g. an alloy, consisting of at least about 99 wt. % aluminum, and the balance comprising specified quantities of silicon, iron, copper, manganese and... | 04/06/1982 |
| 4311768 | Printed circuit board having mutually etchable copper and nickel layers A readily etchable printed circuit board is provided which comprises a resinous substrate having bonded to at least one surface thereof a composite metal structure. This metal structure includes a layer of copper foil having opposed first and second surfa... | 01/19/1982 |
| 4305701 | Priming apparatus for liquid ink writing instruments A system for priming liquid ink writing instruments such as ink jet writers and capillary ink pens is disclosed. A source of ink is pressurized to force ink through the ink jet or other pen so that a small droplet is formed at the jet or pen outlet. As th... | 12/15/1981 |
| 4293617 | Process for producing strippable copper on an aluminum carrier and the article so obtained A process is provided for producing a composite structure suitable for use in connection with the manufacture of printed circuits which includes a carrier layer of aluminum and a covering layer of copper which structure is characterized by the fact that t... | 10/06/1981 |
| 4200734 | Process for polymerization of polyvinyl chloride and VCM monomer removal The present invention relates to an improvement in a process for polymerization of polyvinyl chloride, particularly in a suspension polymerization process which provides for removal of residual vinyl chloride monomer, such as by employing a step in which ... | 04/29/1980 |
| 4156082 | Ketoxime carbamates Carbamate derivatives of ketoximes are useful in combatting pests such as insects, mites, and nematodes.... | 05/22/1979 |
| 4154944 | Ketoxime carbamates Carbamate derivatives of ketoximes are useful in combatting pests such as insects, mites, and nematodes.... | 05/15/1979 |
| 4154733 | Ketoxime carbamates Carbamate derivatives of ketoximes are useful in combatting pests such as insects, mites, and nematodes.... | 05/15/1979 |
| 4154732 | Ketoxime carbamates Carbamate derivatives of ketoximes are useful in combatting pests such as insects, mites, and nematodes.... | 05/15/1979 |
| 4132569 | Ruthenium recovery process Ruthenium is stripped from a catalyst or electrode substrate by immersion in a fluoboric acid solution, converted to ruthenium oxide, and the ruthenium oxide is then converted to the alpha ruthenium trichloride for use in the preparation of fresh catalyst... | 01/02/1979 |
| 4128581 | Ketoxime carbamates Carbamate derivatives of ketoximes are useful in combatting pests such as insects, mites, and nematodes.... | 12/05/1978 |
| 4124534 | High temperature chlorination catalyst The present invention relates to a novel catalyst system for chlorination of hydrocarbons either by oxyhydrochlorination, and/or oxychlorination. The catalyst system comprises copper chloride impregnated onto an alumina support with a metal chloride selec... | 11/07/1978 |
| 4118389 | Ketoxime carbamates Carbamate derivatives of ketoximes are useful in combatting pests such as insects, mites, and nematodes.... | 10/03/1978 |
| 4115323 | Catalyst and process for production of VCM The present invention relates to a novel catalyst for production of VCM containing a salt of rhodium or platinum, a salt of iron or copper, and a salt of zinc; impregnated on an alumina, titania, zirconia, silica, or silica alumina support. The catalyst c... | 09/19/1978 |
| 4054617 | Phenol-alkylphenol phosphates Leather treating compositions are prepared which comprise condensed or polymeric alkyl phenol phosphates generally and more particularly a phenol-alkylphenol condensate which is subsequently alkoxylated and phosphated. These compositions may be utilized f... | 10/18/1977 |
| 4028413 | Ketoxime carbamates Carbamate derivatives of ketoximes are useful in combatting pests such as insects, mites, and nematodes.... | 06/07/1977 |
| 4018559 | Non-rewet leather and method of producing same The present invention relates to the treatment of leather and more particularly to a novel non-rewet dry cleanable leather, and the treatment method by which it is produced. The water-resistance property of a leather which has been treated with a polymeri... | 04/19/1977 |
| 3934975 | Leather treating process Leather treating compositions are prepared which comprise condensed or polymaric alkyl phenol phosphates generally and more particularly an alkylphenol-polyphenol condensate subsequently alkoxylated and phosphated. These compositions may be utilized for l... | 01/27/1976 |
| 3932471 | Azide Carbamate derivatives of ketoximes are useful in combatting pests such as insects, mites, and nematodes.... | 01/13/1976 |
