Single phase silicon carbide refractory
OT THE INVENTION The present invention provides a method of pressureless sintering silicon carbide in which the silicon carbide starting material is in the form of a multimodal composition, or mixtur... Read More
Inventors: Boecker, Wolfgang D. G.; Korzekwa, Tadeusz M.;, Assignee: Kennecott Corporation (Cleveland, OH) |
Method of making a water filter
In the present invention, a satisfactory degree of filtration without undue inhibition of water flow is achieved by providing a cylindrical filter having an inner bonded 80 to 400 U.S. Mesh screen car... Read More
Inventors: VanderBilt, Herbert J.; Modert, Timothy D.;, Assignee: Amway Corporation (Ada, MI) |
Clarification tank
We claim: 1. An apparatus for clarifying a liquid mixture, comprising: a. a tank having means for removing one component of said mixture at the liquid level in said tank; b. a central tube vertically ... Read More
Inventors: Bascope, Alberto H.; Grizzard, Eugene H.;, Assignee: Burmah Oil and Gas Company (Houston, TX) |
Phenolic polymer prepared from o-cresol
What is claimed is: 1. An alkylol group containing phenolic polymer of Formula I: ##STR11## wherein: a. R.sup.1 is ##STR12## hydrogen or a radical of Formula II: ##STR13## b. the R.sup.2 's are indepe... Read More
Inventors: Moss, Ernest K.;, Assignee: The Celotex Corporation (Tampa, FL) |
Apparatus for increasing the pH of waste water
I claim: 1. Apparatus for increasing the pH of waste water, comprising a lime water having an outlet, a lime slurry tank having an inlet for water and an overflow outlet, a conduit for delivering wate... Read More
Inventors: King, Earle Cochran;, Assignee: Mine Safety Appliances Company (Pittsburgh, PA) |
Method for preparing improved expanded polystyrene sheet
I claim: 1. In a process for producing microcellular expanded styrene polymer sheet by extruding a mixture containing styrene polymer, a blowing agent and a nucleating system, the improvement comprisi... Read More
Inventors: Spicuzza, Jr., John P.;, Assignee: ARCO Polymers, Inc. (Philadelphia, PA) |
Chemical-resistant wholly aromatic polyamide fiber material
OF THE INVENTION In the chemical-resistant wholly aromatic polyamide fiber material of the present invention, each of the wholly aromatic polyamide fibers is covered with a coating of a fluorine-cont... Read More
Inventors: Sasaki, Hideharu; Tamura, Yorikazu; Shimada, Keizo;, Assignee: Teijin Limited (Osaka, JP) |
Epoxy resin powder including ethylene vinyl acetate
I claim: 1. A homogeneous free-flowing powder which is shelf-stable and when heated to 185.degree.-250.degree. C in contact with a metal article fuses and then gels to provide a tough protective coati... Read More
Inventors: Warnken, Gerald H.;, Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN) |
Oxygen barrier laminate films including a polyalkylene carbonate adhesive
What is claimed is: 1. In a laminate structure comprising a base layer and a polycarbonate layer bonded to the base layer, the improvement wherein the polycarbonate layer is an adhesive barrier layer ... Read More
Inventors: Dixon, Dale D.; Ford, Michael E.;, Assignee: Air Products and Chemicals, Inc. (Allentown, PA) |
Device for fluidizing and distributing powder
What is claimed is: 1. A device for fluidizing and distributing a powder in suspension in a carrier gas comprising: an enclosed cornerless chamber having an inner wall and a center; inlet conduit mean... Read More
Inventors: Aubin, Gerard; Braguier, Michel Arsene; Naturel, Christian; Poulin, Etienne M.; Wattre, Joseph A.;, Assignee: Letat Francais represente par le Ministre des Postes et (Moulineaux, FR); Desmarquest et C.E.C. S.A. (Montrouge, FR) |
Ceramic forming process
OF THE INVENTION INCLUSIVE OF THE PREFERRED EMBODIMENTS The invention sought to be patented resides in a process for forming a shaped, ceramic green body comprising a calcium phosphate selected from ... Read More
Inventors: Jarcho, Michael; Rossetti, Michael;, Assignee: Sterling Drug Inc. (New York, NY) |
Method and apparatus for adding and mixing second cohesive powders in a fluidized bed blender
OF THE COMPONENTS Referring now to FIG. 3, one of the plurality of hoppers contained within the fluid bed blender is shown in relation to the impingement device 20 positioned within the blending cham... Read More
Inventors: Larson, Richard I.; Brassfield, Henry C.; Adomitis, John T.;, Assignee: General Electric Company (San Jose, CA) |
Process for preparing carbon fibers elliptical in section
We claim: 1. A process for preparing a carbon fiber having an elliptical cross section and substantially free of microscopic flaws, comprising the steps of extruding spinnable pitch from a nozzle with... Read More
Inventors: Haraguchi, Kazutoshi; Tanigawa, Eiji; Nukina, Kenji; Morita, Hiroaki; Maeda, Toyohiro;, Assignee: Osaka Gas Company Limited (Osaka, JP); Dainippon Ink and Chemicals Inc. (Tokyo, JP) |
Process for the production of pressed block fuel elements of high power for gas cooled high temperature reactor
What is claimed is: 1. In a process for the production of molded block fuel elements of high power for gas cooled high temperature reactors by premolding in a first step a graphite matrix block with a... Read More
Inventors: Hackstein, Karl-Gerhard; Hrovat, Milan; Wolff, Willi;, Assignee: Nukem G.m.b.H. (Wolfgang near Hanau, DT) |
Method of cleaning boats that have been contaminated with oil and gas well drilling fluids and hazardous waste
The present invention solves these problems and short comings of the prior art by using the barge that typically collects all of the waste water as a vessel for concentrating solid material in a recyc... Read More
Inventors: Defraites, Jr., Arthur A.;, Assignee: |
Optical component having waveguides extending from a common region
The invention relates to an optical component. The optical component includes waveguides extending from a common region. The optical component also includes a tapered region extending from the common... Read More
Inventors: Qian, Wei; Feng, Dazeng; Zheng, Dawei; Fong, Joan Yiqiong; Shao, Zhian; Chung, Lih-Jou; Yin, Xiaoming;, Assignee: Kotura, Inc. (Monterey Park, CA) |
Waste water purification
We claim: 1. An improved process for the purification of waste water comprising: feeding the waste water to a first clarification zone wherein easily removable solids are separated from the water; pas... Read More
Inventors: Mallatt, Russell C.; Walk, Joe D.; Grutsch, James F.;, Assignee: Standard Oil Company of Indiana (Chicago, IL) |
Wastewater treatment process
Wastewater is treated to remove pollutional factors such as biochemical oxygen demand (BOD), nitrogen, color and toxic substances, using one to four fixed media filters in combination with a powdered ... Read More
Inventors: Teletzke, Gerald H.; Erickson, Allen H.;, Assignee: Sterling Drug Inc. (New York, NY) |
Anaerobic filter
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1. Process for the treatment of an organic waste-water stream containing COD in a recycl... Read More
Inventors: Blay, George A.; Witt, Enrique R.;, Assignee: Celanese Corporation (New York, NY) |
Process and system for treating waste water
It is a primary object of this invention to provide an improved process and system for the treatment of raw or primary waste water using a combination powdered, activated carbon/aerated biological tre... Read More
Inventors: Olesen, Douglas E.; Shuckrow, Alan J.;, Assignee: Battelle Pacific N. W. Laboratories (Richland, WA) |
Compact electrocatalytic sewage treatment unit for maritime use
It is a primary object of this invention to provide a compact, relatively small low-weight unit for treatment of wastewater by electrocatalytic means, primarily for discharge into maritime waters, the... Read More
Inventors: Krause, William A.; Langeland, Leonard E.;, Assignee: Omnipure, Inc. (Houston, TX) |
Apparatus for separating mixtures of liquids of different specific gravities, etc.
What I claim is: 1. Shipboard apparatus for separating a mixture of immiscible liquids having different specific gravities while avoiding turbulences due to ship motion, comprising, in combination: a ... Read More
Inventors: Geurtsen, Alfonsus A.;, Assignee: Machinefabriek Geurtsen Deventer B.V. (Deventer, NL) |
Intumescent compositions obtained by reacting polyisocyanates with phosphorus-containing products, polyesters and cyanuric acid and/or cyanuric acid derivatives
What is claimed is: 1. Intumescent compositions, which may be foamed, and which are obtained by reacting: (1) polyisocyanates with (2) phosphorus-containing condensation products having at least one h... Read More
Inventors: von Bonin, Wulf;, Assignee: Bayer Aktiengesellschaft (Leverkusen, DE) |
Optionally foamed intumescent masses prepared from polyisocyanates, hydroxyl compounds and melamine phosphates
OF THE INVENTION According to the invention, it is preferred to use intumescent masses which have been obtained by the reaction of from about 10 to 70 parts by weight of a polyisocyanate (1) with 100... Read More
Inventors: von Bonin, Wulf; Jonas, Friedrich;, Assignee: Bayer Aktiengesellschaft (Leverkusen, DE) |
Method of manufacturing modified wood material
What we claim as our invention is: 1. A method for making a modified wood material, comprising alternately immersing a raw wood material in two types of solutions, a cation-containing solution and an ... Read More
Inventors: Hirao, Shozo; Usui, Hiroaki; Ohta, Yoshihiro; Nakai, Takashi; Ishikawa, Hiroyuki; Konishi, Satoru;, Assignee: Matsushita Electric Works, Ltd. (Osaka, JP) |
Cable clamp
What is claimed is: 1. Cable clamp means for securing a cable to an adjacent structure comprising: first and second identical clamp members each adapted to be positioned for complementary engagement w... Read More
Inventors: Reimer, William A.;, Assignee: GTE Automatic Electric Inc. (Northlake, IL) |
Haze-free infrared-reflecting coated glass
We claim: 1. A method of forming a tin oxide coating comprising contacting a surface of a substrate in an oxidizing atmosphere with a mixture consisting essentially of tributyltin dimethylpropionate v... Read More
Inventors: Bloss, Karl H.; Davis, James A.; Neuman, George A.;, Assignee: PPG Industries, Inc. (Pittsburgh, PA) |
Ozone generator
Having now described my invention and the manner in which it may be used, I claim: 1. An ozone generator comprising: (a) an elongated hollow housing closed at both ends, (b) an air inlet adjacent one ... Read More
Inventors: Saylor, Laurence M.;, Assignee: |
Method for treatment of biochemical waste
What is claimed is: 1. A method for the treatment of a biochemical waste slurry, with the biochemical waste selected from the group of sewage sludge and garbage, comprising the steps of: providing a s... Read More
Inventors: Ishida, Masahiko; Haga, Ryooichi; Odawara, Youji;, Assignee: Hitachi, Ltd. (Tokyo, JP) |
Process for promotion of microbial consumption of waste water fats
What is claimed is: 1. A process of purifying household or industrial establishment waste water pipes containing fatty waste water, which method comprises adding to the fatty waste water a growth fact... Read More
Inventors: Becker, Klaus;, Assignee: BTC Biotechnik International GmbH (Hamburg, DE) |
Liquid Purification 
