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 |
| 7204636 | Granular and aggregate blending, cooling and screening rotary drum A rotary drum configured for the efficient blending, cooling, and screening of granular products having an outer cylindrical shell, an intake end, and an exit or discharge end. The rotary drum is normally rotated at a predetermined speed by a conventional drive pack... | 04/17/2007 |
| 6971189 | Variable volume clothes dryer The invention is a clothes dryer featuring an interior working volume that is adjustable to suit the size of the load and type of article(s) to be dried. Since the volume is adjusted to fit the load, only the necessary volume is heated. For large loads or bulky arti... | 12/06/2005 |
| 6922908 | Vegetable product drying A dryer is constructed and arranged to dry vegetable product, such as coffee beans. The dryer includes a thermal collector that is constructed and arranged to convert solar energy to heat energy, a heat transfer system, and a housing that defines a drying chamber. T... | 08/02/2005 |
| 6883249 | Dryer with insulating flights An insulating flight for a dryer incorporates inner and outer plates with insulation between them. The concave surfaces of the inner and outer plates provide a space for the insulation and allow for thermal expansion without stressing the welds between the inner and... | 04/26/2005 |
| 6823607 | Plant for the drying and treatment of pourable mineral material A plant for the drying and treatment of a pourable mineral material. The plant includes a combustion apparatus, introducing smoke gases into a rotary-driven rotary drum for cocurrently with the pourable mineral material. The rotary drum is inclined in the conveying ... | 11/30/2004 |
| 6752156 | Humidification cylinder and method of humidifying material A humidifying cylinder includes a first rotatable cylinder having an inlet end and an outlet end and a plurality of first blades extending substantially radially outwardly from an exterior surface of the first cylinder. The humidifying cylinder further includes a se... | 06/22/2004 |
| 6718652 | Rotary particle-drying drum A rotary particle dryer has a shaft extending along an axis and a hollow drum coaxially and spacedly surrounding the shaft and rotatable about the axis in a direction. A set of axially extending inner baffles fixed to the shaft extend radially outward therefrom and ... | 04/13/2004 |
| 6584699 | Three stage single pass high density drying apparatus for particulate materials A single pass, multiple stage, rotary drum heat exchange dryer (22) is provided for drying products such as distillers grains and includes a tubular shell (64) with a moist product inlet (66), an opposed dried product outlet (70), and an internal drying c... | 07/01/2003 |
| 6478461 | Transportable hot-mix asphalt manufacturing and pollution control system A hot-mix asphalt manufacturing system including treatment of emissions and recirculated gases includes a counter-flow rotary dryer 12 having a combustion chamber 28, an inlet 24 for dry ingredients, an outlet 26 for hot-mix asphalt, and a plate collector... | 11/12/2002 |
| 6438862 | Drying apparatus for coffee beans and similar crops The invention is a distributed airways airflow dryer system for coffee beans and other such bulk crops. The interior volume or container of the dryer or dehydrator system that holds the bulk crops, is filled with an airways network structure that provides... | 08/27/2002 |
| 6415527 | Steam dryer The invention concerns a steam dryer, in particular a steam dryer intended for drying of concentrate materials, which dryer comprises a cylindrical, rotatable drum (11), in whose interior a set of steam pipes (12) consisting of a number of pipes has been ... | 07/09/2002 |
| 6282809 | Vane assembly for drying apparatus The present invention relates to a vane assembly for use in a drying apparatus comprising a drying chamber with a heating jacket which is used for drying moist material such as fish offal, food leftovers etc. The drying chamber is substantially cylindrica... | 09/04/2001 |
| 6146133 | Process for the recycling of residues for the production of portland cement clinker The present invention concerns a process for the production of cement clinker in rotary kilns with substitution of primary raw materials and fuels by use of residual materials containing minerals and combustible parts with moisture contents of up to about... | 11/14/2000 |
| 6128828 | Drying machine A drying machine includes a hot air blower, a housing divided horizontally into plural long chambers having an open upper side, a closed bottom and two longitudinal sides bored with through holes, a screw conveyor respectively positioned in each long cham... | 10/10/2000 |
| 6125549 | Radiant heater system for thermally processing flowable materials A system for the thermal processing of material in a housing having an inlet for receipt of the materials and an outlet for the discharge of the material after thermal treatment. The heating of the materials is accomplished, at least in part, by contact o... | 10/03/2000 |
| 6119363 | Rotary drum for drying pourable goods Directly heated rotary drums are used in the drying of pourable goods such as wood chips or strands. Drums are provided with built-in fixtures such as cross fixtures, in order to ensure good heat transmission from the drying gas to the goods. The inventio... | 09/19/2000 |
| 6110430 | Decontamination plant including an indirectly heated desorption system The present invention is a decontamination plant for removing contaminates from contaminated material. The decontamination plant comprises an outer shell including a cavity therein. A drum formed of heat conductive material is rotatably mounted in the cav... | 08/29/2000 |
| 6101736 | Apparatus for drying and processing raw food material A combined spray and rotary drying apparatus includes a spray dryer having a housing defining a spray drying chamber, an annular inlet and an outlet. A burner and atomizer sprayer are provided in the spray drying chamber. The outlet of the spray drying ch... | 08/15/2000 |
| 6085440 | Process and an apparatus for producing a powdered product by spin flash drying A process and an apparatus for drying of a material in the form of a paste or a filter cake in a spin flash dryer. Particles are separated by a classifier (6) in the chamber (1) in such a way that oversize fraction is withheld in the chamber (1) and the d... | 07/11/2000 |
| 6079118 | Continuous drying system A continuous drying system for flake-formed or granular solid, of which bottom inside surface is semi-cylindrical and arranged almost horizontally, comprises drying system main body having a supplying means of a drying object at one end thereof and having... | 06/27/2000 |
| 6065224 | Device and process for the aerobic treatment of organic substances A device for the aerobic treatment, conditioning and/or drying of moist, substantially solid or paste-like, at least partly organic material, has a vessel containing paired, Venetian-blind-like walls, with adjustable blades, forming at least one reaction ... | 05/23/2000 |
| 5996245 | Aeration-type rotary dryer An aeration-type rotary dryer injects air into or onto a flow of materials a rotating cylinder. The air is supplied to an air duct (21) axially passing through the cylinder (10) from the outlet box (11) to the inlet box (12). The axial duct (21) is compos... | 12/07/1999 |
| 5974688 | Apparatus for controlled drying of sludge A method and drying apparatus for drying a quantity of sludge. The drying apparatus is comprised essentially of a plurality of drying zones; a plurality of infrared emitters within each of the drying zones; a means for producing a flow of the sludge throu... | 11/02/1999 |
| 5810471 | Recycled asphalt drum dryer having a low NOx burner An apparatus for the treatment of 100% reclaimed asphaltic pavement (RAP) uses low temperatures and no direct radiation from a burner flame to the RAP. The RAP is first heated in a counter flow drum which is supplied with hot combusting gases generated by... | 09/22/1998 |
| 5737849 | Recycle moisture evaporation system A recycled asphalt product (RAP) drying apparatus comprising a three-zone counterflow RAP dryer and a duct system to recycle essentially all of the hot gases back through the system. The three-zone RAP dryer has a combustion zone at one end, a drying zone... | 04/14/1998 |
| 5638607 | Coffee roaster A roasting apparatus for coffee beans and other food includes a removable drum on the housing rotatable about a horizontal axis and drive means on the housing for supporting and rotating the drum. The drum has a plurality of internal vanes arranged such t... | 06/17/1997 |
| 5628126 | Revolving drum drying apparatus and method Apparatus for drying a wet material such as sewage sludge comprises a drum (11) mounted for revolution about a horizontal axis and containing interconnected inner (22) and outer (21) concentric spirals containing a continuously-recirculatable charge of pa... | 05/13/1997 |
| 5588223 | Restrained paper dryer Methods and apparatus are disclosed for restrained paper drying in order to produce high performance paper with enhanced stiffness and, in the process, substantially improve paper properties and reduce fiber usage. The paper web is held in a restrained po... | 12/31/1996 |
| 5581902 | Rotary dryer drum A rotary drum dryer is provided which will dissipate heat from the drum and which will allow the drum to expand. The rotary drum dryer includes an elongate cylindrical drum which rotates on a base and a tire assembly mounted to the drum. The tire assembly... | 12/10/1996 |
| 5579587 | Recycle moisture evaporation system A recycled asphalt product (RAP) drying apparatus comprising a three-zone counterflow RAP dryer and a duct system to recycle essentially all of the hot gases back through the system. The three-zone RAP dryer has a combustion zone at one end, a drying zone... | 12/03/1996 |
| 5566469 | Drying apparatus with rotatable housing A thermal vaporization apparatus includes a cylindrical tube having two ends. A base is provided, with the tube being rotatable with respect to the base. A first drive mechanism applies rotating force to the tube. An auger having two ends extends through ... | 10/22/1996 |
| 5555639 | Rotary drum dryer An anti-clogging rotary drum dryer for drying stranded material is provided which includes a tubular, rotatable housing having an inlet for receiving drying gas and wet material, as well as first and second, apertured, telescopically interfitted tubes wit... | 09/17/1996 |
| 5463819 | Dehydration treatment apparatus for sludge A dehydration treatment apparatus for sludge wherein organic sludge and a modifying/setting agent are charged into a rotating drum and the sludge is dehydrated and dried. The apparatus comprises a rotating drum, a sludge charging hopper arranged on the in... | 11/07/1995 |
| 5456024 | Method of and apparatus for the treatment of refuse or garbage especially household refuse An apparatus and a process for treating household refuse are disclosed. Household refuse or garbage is comminuted, dried and mixed with granular mineral substance, preferably sand, at a temperature of up to 1000° C. and the mixture is homogenized and deg... | 10/10/1995 |
| 5454176 | Large diameter wafer dryer with adjustable flighting A dryer for drying material carried along and dried by hot gases including a hollow rotatable drying drum with an inlet and a discharge end, means for driving the drum in rotation and a group of flights projecting into the gas flow stream to break up the ... | 10/03/1995 |
| 5455005 | Material remediation in multi-function heating drum Material remediation apparatus includes a remediation drum through which materials, such as soil contaminated with hydrocarbons, are advanced from a feed end to a discharge end of the drum. A tube extending concentrically from the discharge end of the dru... | 10/03/1995 |
| 5431560 | Device for supplying gas to a cylindrical rotary kiln A device for supplying gas to a rotary cylinder by means of a slip ring channel is described, a relative movement between rotating part and stationary part of the slip ring being permitted.... | 07/11/1995 |
| 5405579 | Decontamination of polluted soils For the thermal treatment of contaminated soils, excavated soil is heated by indirect heat exchange up to 650° C. in a rotary drum in the absence of oxygen. Pollutants are separated from the soil by a desorption medium. Moisture in the soil vaporized to ... | 04/11/1995 |
| 5403395 | Reel for applying topical substances to base products An arrangement for the application of topical substances to base products. A rotatable star-shaped reel structure is rotated, in which a flowable base product is tumbled while being coated with the topical substance so as to ensure an appropriate uniform ... | 04/04/1995 |
| 5393501 | Material remediation in multi-function heating drum Material remediation apparatus includes a remediation drum through which materials, such as soil contaminated with hydrocarbons, are advanced from a feed end to a discharge end of the drum. A tube extending concentrically from the discharge end of the dru... | 02/28/1995 |
