Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 7258710 | Maritime emissions control system An Advanced Maritime Emissions Control System (AMECS) includes several Exhaust Intake Bonnets (EIBs) of different size and/or shape, an Emissions Capture System (ECS), and an Advanced Maritime Emissions Control Unit (AMECU) mounted on an Unpowered Seagoing Barge (US... | 08/21/2007 |
| 7175337 | Method and apparatus for mixing pulverous material with liquid Liquid is supplied within a substantially vertical mixing chamber in a substantially tangential manner from a chamber top section, such that the liquid is deflected for rotatory motion against a chamber wall while advancing, in response to a pressure difference, dow... | 02/13/2007 |
| 7114843 | Method of manufacturing a bituminous coated aggregate mix A method of manufacturing a bituminous coated aggregate mix, said method comprising at least the following steps: (a) course aggregate are dried by heating; (b) an intermediate mix is formed by coating the course a... | 10/03/2006 |
| 6991361 | Portable concrete plant A portable concrete plant for producing ready mix concrete proximate to a location where the ready mix concrete is used. The portable concrete plant includes storage regions for storing components used in the ready mix concrete. The portable concrete plant also incl... | 01/31/2006 |
| 6929393 | Asphalt production plant An asphalt production plant includes an asphalt binder storage tank, a mixer for mixing asphalt binder and aggregate materials, an asphalt binder pumping system for conveying asphalt binder to the mixer and an asphalt binder metering system for controlling the rate ... | 08/16/2005 |
| 6726736 | System and method for reducing emissions from a dust generation station including a metal cutting station A system and method for reducing the emissions from a dust generation station, such as a metal cutting station, can be easily transported from location to location. The system uses a mobile carrier which supports a separator, such as a baghouse, as well as a telesco... | 04/27/2004 |
| 6656242 | Hot mix asphalt facility A hot mix asphalt batching plant has two separate air handling systems--one for the dryer and another for handling the fugitive dust. These two systems are separate, so that variations in operating conditions for the dryer do not affect the performance of... | 12/02/2003 |
| 6645275 | Apparatus and methods for removing fines from a gas stream A bag house is mounted on a portable trailer and has a tube sheet with depending filter bags in part defining a first plenum for receiving a gas stream with fines and a second plenum for receiving clean gas from the filter bags. The fines are collected in... | 11/11/2003 |
| 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 |
| 5915833 | Method and device for cooling foundry sand A cooling apparatus for used foundry sand provided with a homogenizing and conveying apparatus in a constant vacuum with controlled water inflow and a suction point for the water vapor, the water evaporating due to the reduced pressure draws the heat of e... | 06/29/1999 |
| 5820257 | Asphalt plant having silo with dynamic input and output mass monitoring devices A storage silo system and an asphalt plant having the storage silo system, each including a silo bin, an input monitor arrangement for dynamically monitoring the mass of a flowable dry material being introduced into the silo bin, and an out monitor arrang... | 10/13/1998 |
| 5634712 | Asphalt plant with gas containment system An asphalt plant is provided with a system for containing noxious and nuisance gases and fumes generated therein. The system includes a substantially air tight casing encircling an slat conveyor of the plant, a substantially air tight elevator chute havin... | 06/03/1997 |
| 5624183 | Apparatus for metering and mixing aggregate and cement Portable metering and mixing apparatus includes a trailer having a hopper thereon divided into two compartments, one compartment for aggregate and another compartment for cementitious material. An auger receives aggregate from one compartment and feeds ag... | 04/29/1997 |
| 5556197 | Asphalt plant for both continuous and batch operation A combination continuous/batch asphalt plant includes mechanisms and controls which permit it to be hot-stopped when operating in the continuous mode.... | 09/17/1996 |
| 5419654 | Vehicle for road repair and the like A motor driven wheeled road patching vehicle includes a gravel hopper and a tank of heated asphalt. A gate assembly is adjusted to control gravel flow into a pressurized hose. A telescoping tube assembly extendable between a maximum and a minimum overall ... | 05/30/1995 |
| 5383725 | Asphalt/dust/rubber processing equipment A closed, pressurized apparatus for introducing aggregate dust and rubber into a stream of liquid asphalt is provided. Aggregate dust and rubber are dispensed through a valve from a receiving chamber into a mixing housing. The aggregate dust and rubber en... | 01/24/1995 |
| 5378060 | Combustion chamber having reduced NOX emissions A combustion chamber having improved heating efficiency and reduced NOx emissions includes a reduced diameter throat and a stepped configuration within the chamber. The chamber configuration encourages efficient combustion to reduce NOx | 01/03/1995 |
| 5294197 | Asphalt manufacturing assembly An asphalt manufacturing assembly (10) is disclosed that includes a rotatable cylindrical dryer drum (11) having an opening (14) in the front (12) for receiving virgin asphalt aggregate and for permitting the exhaust of fumes and an opening (18) in the ba... | 03/15/1994 |
| 5277490 | Method and apparatus for producing bituminous mixtures Method and apparatus for producing mixtures containing bitumen, in which the material to be treated is conveyed by the force of gravity through a slit-type space between two vertically arranged heated surfaces.... | 01/11/1994 |
| 5251976 | Asphalt plant adapted for the batch production of asphalt mix containing recycle asphalt paving An asphalt production plant which is adapted to process mixtures of recycled paving and aggregate, and which comprises a rotary drum dryer for heating and drying stone aggregate, and an elevator for conveying the heated and dried aggregate to an elevated ... | 10/12/1993 |
| 5232279 | Apparatus for making insulating cellular concrete An apparatus for making insulating cellular concrete consists of one or multiple mixing tanks. The multiple tanks are connected in tandom to a common pressure fed pump (6) via a valved (8) manifold (10). These simplified apparati can be trailer mounted (1... | 08/03/1993 |
| 5215372 | Aggregate storage apparatus for use in producing asphaltic mix An asphaltic mix batch apparatus which comprises a tower which mounts a number of aggregate storage bins, a weigh hopper underlying the storage bins, and a pugmill underlying the weigh hopper. Also, a screen assembly is positioned above the bins for segre... | 06/01/1993 |
| 5209563 | Dust return system A closed, pressurized dust return system for introducing aggregate dust into a stream of liquid asphalt is provided. Aggregate dust is dispensed through a valve from a receiving chamber into a mixing housing. The aggregate dust enters the mixing housing a... | 05/11/1993 |
| 5176445 | Apparatus for decontaminating soils An apparatus is disclosed which is capable of efficiently decontaminating soil, and which has several common components with a conventional asphalt production plant. This feature permits a conventional asphalt plant to be retrofitted by the addition of a ... | 01/05/1993 |
| 4881819 | Method and apparatus for preparing concrete mortar The invention relates to a method and apparatus for preparing concrete mortar. In order to regulate the moisture content of the concrete mortar a sand sample is taken of the sand used. This sand sample is dried. The amount of water added to a concrete cha... | 11/21/1989 |
| 4872760 | Method and apparatus for processing a mix, preferably concrete mix A method according to the invention involves continuously moving a mix within a closed vessel having loading and discharge pipes at the ends thereof. The mix is subjected to oscillations during movement by means of a source of oscillations. A gate is prov... | 10/10/1989 |
| 4787938 | Countercurrent drum mixer asphalt plant A drum mixer asphalt plant is provided with a rotatable cylinder 10 in which virgin aggregate, recycle material and liquid asphalt are mixed to produce an asphaltic composition and the hot gas stream for heating and drying the materials flow in countercur... | 11/29/1988 |
| 4715720 | Drum mix asphalt plant with knock-out box and separate pugmill coater Asphalt plant apparatus comprising a drum dryer, a collection chamber or "knock-out box," a "baghouse," and a separate pugmill coater disposed directly underneath the collection chamber so that dust particles which settle out of the airstream in the colle... | 12/29/1987 |
| 4692028 | Sealant melter/applicator with automatic load switching system A sealant melter/applicator includes a sealant melting chamber, an internal combustion engine having a rotating power output shaft and an hydraulic pump which converts the rotary motion of the engine power output shaft into a flow of pressurized hydraulic... | 09/08/1987 |
| 4616934 | Drum mix asphalt plant with knock-out box and separate coater Asphalt plant apparatus comprising a drum dryer, a collection chamber or "knock-out box," a "baghouse," and a separate pugmill coater disposed directly underneath the collection chamber so that dust particles which settle out of the airstream in the colle... | 10/14/1986 |
| 4506982 | Apparatus for continuously blending viscous liquids with particulate solids An apparatus for continuously blending a viscous liquid, such as hot asphalt, with particulate solids, such as ground rubber, includes a vertical cylindrical tank in which is disposed a smaller vertical vessel defining therein a blending chamber. Open low... | 03/26/1985 |
| 4452535 | Concrete production apparatus A concrete production apparatus produces concrete within a selected temperature range. Ground water is circulated through a heat exchanger in the apparatus to provide a heat source or a heat dump. Concrete water is circulated through another heat exchange... | 06/05/1984 |
| 4415267 | Apparatus for mixing and application of paving compositions An apparatus for mixing an additive with molten paving material and for application of the resultant paving composition. The apparatus includes a mixing mechanism in heat transfer relationship with a heated materials tank for recirculatingly moving molten... | 11/15/1983 |
| 4314921 | Method and apparatus for preparing a bituminous binder A bituminous binder for asphalt road coverings is prepared by homogenizing a blend of bitumen and polyethylene and/or polypropylene in a heated mixing vessel while stirring the blend and melting and dissolving the polyolefin in the bitumen. The blend is h... | 02/09/1982 |
| 4242001 | Worm extruder assembly Worm extruder assembly includes an extruder worm, a steam dome formed as a cylindrical tube disposed transversely to the worm axis, a condenser surrounding the cylindrical tube, a steam outlet line extending from the steam dome to the condenser, and means... | 12/30/1980 |
| 4159877 | Materials handling and application mechanism A self-contained mechanism for the preparation handling and application of liquified materials such as coating compounds, joint sealers, crack fillers, waterproofing compounds and the like, is provided with an especially configured materials tank having p... | 07/03/1979 |
| 4103350 | Method of reducing emission of particulate matter 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... | 07/25/1978 |
| 4072435 | Method and apparatus for maintaining highways Method and apparatus for maintaining a road or the like wherein liquid asphalt cement and aggregate are separately carried to a job site. The temperature of both of these is maintained within a range of from about 70° F. to about 250° F. for the aggrega... | 02/07/1978 |
| 3986889 | Method of producing a mixture of bitumen and subdivided solid mineral matter Method of producing a mixture of bitumen and subdivided solid mineral matter, comprising mixing pure bitumen with subdivided solid mineral matter containing moisture in at least such proportion as is picked up by the mineral matter from the atmosphere and... | 10/19/1976 |
