Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Number | Title | Issue Date |
| 4428840 | Anionic and cationic removal of copper from cyanide-containing wastewater A method for removing low concentrations of soluble copper in the form of cupric cation and cuprocyanide and cupricyanide anions comprises first adding ferric cation, or ferrous cation and a soluble oxidizing agent, in an amount in excess of the stoichiom... | 01/31/1984 |
| 4420369 | Process for the decolorization of pulp mill bleach plant effluent Pulp mill bleach plant caustic extraction effluent is decolorized using a primary or other sludge from a pulp and paper mill. The sludge is acidified and mixed with the effluent. After a short incubation period, the mixture of acidified sludge and effluen... | 12/13/1983 |
| 4405463 | Process for stabilizing silica-rich geothermal brine to prevent silica scaling A process for stabilizing silica-rich geothermal brine to prevent silica scaling comprises selectively providing a supply of ferric ions, allowing the silica-rich brine to combine with the ferric ions to form insoluble, iron-rich siliceous material and se... | 09/20/1983 |
| 4405464 | Process for the removal of selenium from aqueous systems A process for reducing the concentration of selenium ions in the Se(VI) oxidation state in an aqueous solution. The aqueous solution is admixed with a quantity of metallic iron. The iron reduces the selenium ions from the Se(VI) oxidation state to a lower... | 09/20/1983 |
| 4402851 | Pumpable composition for water-purifying purpose containing iron (II) sulphate, and a method for producing the same A pumpable water-purifying dispersion containing iron(II)sulphate, the iron(II)sulphate being dispersed in an aqueous phase with a dispersing agent containing an alkaline earth metal and a basic anion. The best dispersion properties are obtained when the ... | 09/06/1983 |
| 4379082 | Method of removing ruthenium contamination from a liquid radioactive effluent A method of removing ruthenium contamination from a radioactive liquid effluent, consisting in adding to said liquid effluent a reducing agent and copper ions, to form, in said effluent, a cuprous oxide precipitate on which the ruthenium is fixed, and sub... | 04/05/1983 |
| 4354941 | Process for continuous separation of polluting matter from a carrier fluid A contaminated carrier liquid in a chamber is cleaned by adding thereto oil particles having a charge and a composition that induces the formation of an hydroxide floc to form an intermediate filtering layer in the chamber. A top clean oil layer is recove... | 10/19/1982 |
| 4354937 | Process for precipitating heavy metals from wastewater A process for precipitating heavy metals from wastewater containing sulfate ions by treatment of the water with sulfate reducing bacteria. Said bacteria will reduce the sulfate ions to hydrogen sulfide which in its turn will precipitate the metal ions in ... | 10/19/1982 |
| 4343706 | Method of removing heavy metals from industrial waste streams Heavy Metals contained in industrial waste streams are removed therefrom by flocculation using a source of ferric ions and an alkaline material at a basic pH. Both the flocculated heavy metals and the coagulant chemicals are recovered by acidifying the fl... | 08/10/1982 |
| 4331551 | Method of removing ruthenium contamination from radioactive effluents A method of removing ruthenium contamination from a radioactive liquid effluent, wherein: (a) the pH of said effluent is adjusted to a value of less than 5 and copper ions are added thereto, (b) the effluent thus treated is brought into contact with iron to fo... | 05/25/1982 |
| 4313830 | Method for increasing the cross-flow microfiltration fluxes of waste waters containing suspended solids and/or emulsified oil A method for increasing the cross-flow microfiltration fluxes of waste waters containing suspended solids and/or emulsified oil through microporous thermoplastic tubes by including therein a calcium compound selected from Ca(OH)2 or CaSO4.... | 02/02/1982 |
| 4306952 | Electrolytic process and apparatus Method and apparatus for electrolyzing halogen salt solutions having a low halogen salt concentration with direct formation of halogen, using an electrolytic cell comprising at least one anode and at least two electrodes which can function as cathodes. Th... | 12/22/1981 |
| 4219418 | Water treatment process The present invention is concerned with a process for the purification of highly polluted water containing paper mill waste products and algae, which comprises: (a) treating said highly polluted water with hydrogen peroxide and alum; (b) allowing floccula... | 08/26/1980 |
| 4194972 | Method for breaking an oil-in-water emulsion A method is disclosed for breaking an oil-in-water emulsion. Briefly, the method of this invention includes the following general steps. A porous ferrous ion producing anode is established. A supply of the oil-in-water emulsion is located on one side of t... | 03/25/1980 |
| 4163716 | Process for the purification of contaminated water The invention concerns a process for the purification of acid dyehouse effluent from a dyeing process, which is contaminated with coloured substances and heavy metal ions. After removal of fibers, the effluent is subjected to ion exchange to remove surfac... | 08/07/1979 |
| 4144355 | Method for separating vegetable waste solids from aqueous slurries of vegetable waste materials and method of feeding the separated solids to ruminant animals A method for separating solids from aqueous waste slurries of vegetable processing plants by adjusting the pH of the slurries to at least 11.7. When the slurry has a pH of at least 11.7 a gel will be formed. The gel has admixed therewith about 2 to 6 weig... | 03/13/1979 |
| 4111768 | Method of separating solids from a fluid system Method for the electrolytic separation of colloidally suspended material from a fluid system and compositions for using such method to recover such materials.... | 09/05/1978 |
| 4076620 | Process for the disposal of sewage The process embodying the discovery of the effects of large lime dosages on sewage sludge character consists of: adding lime to raw, sanitary sewage in amounts to exceed a 1:1 weight ratio of lime to COD, or at least 500 ppm lime; immediately treating wit... | 02/28/1978 |
| 3984312 | Process for insolubilizing potentially water pollutable wastes from sodium or ammonium type sulfur dioxide air pollution control systems Process for insolubilizing water soluble wastes from alkaline sodium or ammonium type sulfur dioxide control systems used in conjunction with industrial or power plants. The sodium or ammonium sulfite or sulfate wastes are reacted in solution with ferric ... | 10/05/1976 |
| 3974070 | Process for purifying tap water A process for purifying tap water which comprises filtering water containing impurities flocculated by a metal hydroxide produced electrolytically, through a layer of a solid water-insoluble granular material. On said layer, in the direction of water flow... | 08/10/1976 |
| 3931007 | Method of extracting heavy metals from industrial waste waters A method is provided for extracting metal impurities from waste water to which ferrous ions are added to provide at least two times the amount of ferrous ions on the mol basis to the amount of metal ions present, the resulting solution containing acid rad... | 01/06/1976 |
