Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 4447332 | Fuel sludge treatment method, especially for leaded gasoline storage tank sludge A sludge treatment technique adapted for separating volatile liquid hydrocarbons and/or water from sludge solids in a horizontal enclosed tank having a supported bed of filter particles. Liquids are permitted to drain and evaporate under controlled condit... | 05/08/1984 |
| 4422940 | Method of neutralizing and detoxifying wastes containing organic compounds A method of neutralizing and detoxifying waste material containing both an acid and a toxic organic compound. The waste material is combined with sufficient oil and sufficient caustic to form a pumpable slurry having a pH of 7 or higher. The oil is then s... | 12/27/1983 |
| 4406795 | Extraction process The invention relates to a process for the extraction of solids from liquids containing solids granulated by heat effect and/or solids the moisture content of which is reducible by heat effect, especially from colloidal solutions with protein content, sus... | 09/27/1983 |
| 4358383 | Method of cleaning a filter surface in situ in a pressure filtering apparatus for liquids and pressure filtering apparatus for carrying out the method Cleaning a filter surface (16) in situ in a filer housing (10) forming part of a pressure filtering apparatus for liquids is carried out by drying the coating deposited on the filter surface by means of hot air which is caused to flow at a moderate rate t... | 11/09/1982 |
| 4338201 | Continuous separation system A method of separating solids and liquid material in a slurry. The solids are continuously purged, washed, dried and removed with a minimum amount of mechanical handling. The slurry is continuously deposited on a moving horizontal rotary screen and conden... | 07/06/1982 |
| 4330411 | Process for treating clarified sludge The invention relates to the treatment of aqueous materials such as clarified sludge. Disposal of such materials in large quantities is difficult and expensive. The present invention is directed to a treatment method that is economical and results in prod... | 05/18/1982 |
| 4321150 | Process for wastewater treatment and wastewater sludge conversion into energy The process disclosed includes treating settled sludge and/or organic debris recovered from a wastewater treatment system and thermally converting the treated material and/or comminuted organic solid wastes separately or in combination into steam combusti... | 03/23/1982 |
| 4321151 | Process for wastewater treatment and wastewater sludge conversion into energy The process disclosed includes treating settled sludge and/or organic debris recovered from a wastewater treatment system and thermally converting the treated material and/or comminuted organic solid wastes separately or in combination into steam, combust... | 03/23/1982 |
| 4310422 | Method of processing and recirculating filtration residues The filter cake resulting from the filtration of tar, pitch, coal extract or coal oil with the help of a filter aid, is dried by blowing an inert gas through it. Thereafter it is comminuted to a particle size of about 0.5 mm and these particles are heated... | 01/12/1982 |
| 4276115 | Process and apparatus for dehydrating waste solids concentrates An apparatus and process for dehydrating waste solids concentrates including secondary and digested sewage sludges and those concentrates prone to form emulsions upon the addition of oil are obtained and accomplished by mixing the sludge or other concentr... | 06/30/1981 |
| 4267060 | Travelling sheet, flat-bed vacuum filter and method To seal the top cover of a vacuum travelling web filter, the top cover is lowered, by gravity, with a depending rim fitting against an upstanding rim of a filtrate chamber pan; the contaminant chamber above the filter web is closed off, and supply of filt... | 05/12/1981 |
| 4265771 | Alluvial filter candle apparatus and a method of cleaning the same An alluvial filter candle apparatus has a plurality of filtering elements each of which has a return casing surrounding a riser lower end provided with a filtrate inlet opening and preventing backflow of the filtrate through the filter cake. The volume of... | 05/05/1981 |
| 4260489 | Treatment of oily sludge Oily sludge is treated by filtering it through a precoated surface filter, treating the filtration residue with a hydrocarbon solvent and/or steam stripping the extracted residue. The residual oil content of the treated sludge is very low and it can be us... | 04/07/1981 |
| 4248709 | Method of filtering sewer scum and apparatus therefor The method of treating sewer scum including combustibles and debris includes the steps of collecting the scum from sewage, delivering it to a perforated filter drum, continuously rotating the drum upon an inclined longitudinal axis, applying heated air un... | 02/03/1981 |
| 4234429 | System for separating particulate matter into soluble and insoluble portions Particulate matter collected by an environmental air quality control device may be in part toxic in nature and thus not readily disposable. By separating the toxic portion of the particulate matter from a nontoxic portion, disposal of nontoxic portion may... | 11/18/1980 |
| 4234424 | Apparatus for the purification of oily emulsions, solutions, and industrial waste waters The invention relates to an apparatus for the purification of oily emulsions, solutions, industrial waste waters or the like. The apparatus includes a reaction container, at least one discharge connecting piece, an inflow trough and a band filter fitted w... | 11/18/1980 |
| 4217700 | Process for drying filtration residue A process for drying solid residues obtained in filtration processes, in which the residue is first dried by passing a gas through it while it is still on the filter elements, and then whirl drying the residue in a lower portion of the reaction vessel. A ... | 08/19/1980 |
| 4158627 | Method and apparatus for extracting waste material Method and apparatus for drying waste matter such as sludge accumulated in a sewage treatment facility. The sludge is mixed with flocculating chemicals and thoroughly stirred. The mixture is then allowed to drain for a predetermined time in a porous-botto... | 06/19/1979 |
| 4157305 | Method of filtering molten coal A process for filtering molten coal is provided. The process comprises the steps of providing a filter, passing a stream of molten coal which includes some solid material against said filter and filtering the solid material so as to form a filter cake on ... | 06/05/1979 |
| 4133756 | Method for dehydrating a mixed dust slurry A method is disclosed for feeding a constant amount of filter cake to a dryer thereby producing dried powder having a predetermined moisture content so that materials of uniform quality are fed at a constant rate to the stages subsequent to the dryer in a... | 01/09/1979 |
| 4132640 | Process for the hygienic elimination of sewage containing salt-containing organic substances A process and system for hygienic elimination of sewage having salt-containing organic substances as a constituent thereof. The sewage is concentrated by evaporation and the salt and organic substances are fed into a combustion chamber. The organic substa... | 01/02/1979 |
| 4131546 | Method and apparatus for removing filterable substances from a liquid The disclosure relates to a method and apparatus for removing separable impurities from a liquid. In the method, the liquid is caused to pass radially through a cylindrical roll of web-like, wet-strength fiber material at the same time as the fiber web wh... | 12/26/1978 |
| 4119538 | Treatment of waste liquid and apparatus therefor and a fertilizer composition obtained thereby A process for treating a waste liquid which is obtained from a fermentation process, e.g., an alcohol fermentation, and contains organic and inorganic substances which are useful as fertilizer, is provided which includes combusting a concentrate of the wa... | 10/10/1978 |
| 4116831 | Separation of solids and liquids A method of reducing the liquid content of a mixture of a liquid and a particulate solid by subjecting said mixture to pressure filtration in a tube pressure filter in which, after the formation of the filter cake on the filter element of the tube pressur... | 09/26/1978 |
| 4115265 | Method and apparatus for dehydrating suspension Method and apparatus for dehydrating suspensions by means of a vacuum filter and consisting of applying the suspension to the surface of the vacuum filter, directing steam along the path parallel to the surface and thereafter passing the steam into contac... | 09/19/1978 |
| 4094784 | Apparatus and method for filtering dehydrating and drying material A filter apparatus for treating material comprises a filter cylinder, a hollow valve plate mounted rotatably in the center portion of the filter cylinder and having a filter mesh provided thereon, and a hollow shaft connected to the valve plate to cause t... | 06/13/1978 |
| 4077133 | Procedure for dehydrating and drying fine-grained products and in addition a device to be used for the execution of the procedure When dehydrating and drying fine-grained products which are present in slurry form, dehydration is first carried out in a filter and in conjunction drying in a drying cylinder, inasmuch as the filtering takes place under pressure which is provided by mean... | 03/07/1978 |
| 4057496 | Method and device for filtration A device for filtering slurries comprises a bag-shaped filter medium accommodated in a filter chamber of a filter tank, in which a slurry is supplied, a baffle plate for separating the filter chamber into a side filter chamber and a bottom filter chamber,... | 11/08/1977 |
| 4050390 | Method of treating sewage sludge A method of treating sewage sludge is disclosed. The method makes use of an unitary multi-hearth furnace and the sewage sludge is dried in an upper part of the furnace and subjected to pyrolyzation in a lower part thereof to cause the sewage sludge to be ... | 09/27/1977 |
| 3975272 | Method for recovering phase components from a mixture of solids and liquids A method is provided for recovery of the one of the phase components of a mixture of solids and liquids by introducing a condensable gas into the withdrawal line from a separator. This has particular usefulness as applied to the recovery of ammonium sulfa... | 08/17/1976 |
| 3969247 | Vacuum filtration process An improved process for dewatering sodium bicarbonate solids and similar substances formed as a cake on a rotary drum vacuum filter that is disposed for rotation in partial submergence in a slurry containing the suspended solids. The process includes the ... | 07/13/1976 |
