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| Number | Title | Issue Date |
| 7208417 | Apparatus and method for supplying chemicals A chemical supplying apparatus includes first and second mixing tanks for mixing and supplying chemical slurries used in a semiconductor fabrication process. The slurries are alternately provided from the first and second mixing tanks such that the slurry is continu... | 04/24/2007 |
| 6733168 | Separating and sorting apparatus for asphalt An apparatus and method for testing asphalt in the field is described. The apparatus includes a motor for rotatively driving a chamber containing the asphalt to be tested. The chamber is rotated while cooler, ambient air is circulated through the asphalt particulate... | 05/11/2004 |
| 6196710 | Dust distributor for asphalt mixing machine An apparatus for making asphalt paving material includes a dust collection and distribution system by which aggregate dust that is collected during the heating and drying of aggregate may be introduced into the mixing chamber and distributed over a substa... | 03/06/2001 |
| 4789244 | Apparatus and method to produce foam, and foamed concrete A method for forming foam, useful in mixing with concrete at a batching plant, includes the steps: (a) supplying a synthetic resinous foaming agent, in liquid form, (b) combining the foaming agent with water, to form a liquid mix, and pressurizing the mix, (c)... | 12/06/1988 |
| 4784216 | Heating and/or drying apparatus This application discloses several components relating to a heating apparatus which preferably are used in conjunction with each other in an apparatus for heating solid granular or particulate material, such as aggregate used to make asphalt concrete. One... | 11/15/1988 |
| 4772434 | Soap making process A process for the preparation of soap and soap/synthetic detergent products from raw materials normally employed in the manufacture of such products including fatty acids, triglycerides and caustic by subjecting such raw materials to intensive countercurr... | 09/20/1988 |
| 4638747 | Coal-fired asphalt plant The invention comprises a coal-fired burner system for use in a drum mix asphalt plant or drum dryer used for producing asphalt paving composition. Coal to fire the burner is ground to a -200 mesh size by an air-swept rotary impact mill, and a classifier ... | 01/27/1987 |
| 4504149 | Closed end drum asphaltic concrete recycle apparatus and method Apparatus for recycling asphaltic concrete comprises an elongated drum having a first, open end, through which hot gases of combustion are directed and product is concurrently recovered, and a second, opposite end, through which composition to be treated ... | 03/12/1985 |
| 4474683 | Soap making process A process for the preparation of soap and soap/synthetic detergent products from raw materials normally employed in the manufacture of such products including fatty acids, triglycerides and caustic or alkali by subjecting such raw materials to intensive c... | 10/02/1984 |
| 4411530 | System and method for rapid beneficiation of Bentonite clay A system and method for rapid beneficiation of bentonite clay is disclosed. Beneficiation of the bentonite clay occurs through oxidation of structural ferrous iron. For rapid beneficiation, bentonite clay, preferably ground, is subjected to moist air whil... | 10/25/1983 |
| 4397760 | Rapid saponification process A process for the preparation of soap and soap/synthetic detergent products from raw materials normally employed in the manufacture of such products including fatty acids, triglycerides and caustic by subjecting such raw materials to intensive countercurr... | 08/09/1983 |
| 4298287 | Center draft asphaltic concrete drum mixer In a continuous drum mix asphalt plant, dust is exhausted from an intermediate zone of the drum mixer between its drying and mixing zones. The dust is exhausted radially through openings into a collection housing, which communicates with a dust collector ... | 11/03/1981 |
| 4272212 | Method and apparatus for rejuvenating and recycling asphalt A process for rejuvenating and recycling used asphalt and a machine including a pugmill mixing chamber for mixing crushed asphalt supplied thereto and for mixing water, calcium oxide and asphalt oil therewith is disclosed. The water and calcium oxide mixt... | 06/09/1981 |
| 4245915 | Apparatus for making asphalt concrete A process for making asphalt concrete comprises mixing starting materials including aggregate and binder material and optionally, other additives, to a final temperature of about 60° C. to about 150° C. in an indirectly heated mixing chamber which is se... | 01/20/1981 |
| 4211490 | Drum mix asphalt plant with fiber filter dust collector Drum mix asphalt plant apparatus connected to a fiber filter dust collector for removing dust and other light particulate matter produced by operation of the drum mixer. Asphalt material is added to the drum mixer in a manner to minimize smoking of the as... | 07/08/1980 |
| 4189237 | Method of preparing and pouring concrete on a building site and a container and a vehicle for use with this method A method of mixing concrete and containers for providing predetermined quantities of cement and aggregate to be transported to a site for on site mixing of concrete. The containers have two compartments which are self closing due to the weight of the cont... | 02/19/1980 |
| 4165184 | Apparatus for asphaltic concrete hot mix recycling A method of hot mix recycling of old asphaltic concrete paving heats the old pavement, after it has been removed and sized, to a temperature below its firing point and heats fresh aggregate to a greater temperature before combining the two and adding new ... | 08/21/1979 |
| 4130364 | Method and portable apparatus for treating asphalt paving material A method and apparatus for treating paving material wherein the asphalt material is tumbled within an inclined drum so that it initially passes through the center portion of a stream of hot gases and is conveyed rearwardly and then is subsequently dropped... | 12/19/1978 |
| 3932302 | Foam generator A method and apparatus for simultaneously generating and pumping foam. As air is being pumped, foam solution is transmitted through a number of bores formed in at least one of the pump's pumping members, whereupon foam is generated when the solution emerg... | 01/13/1976 |
