Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7293594 | Process for the production of sandwich elements from reactive plastics material The invention relates to a process for the production of sandwich elements (so-called panels), in which the rising reactive mixture is guided, when it rises, through guide elements arranged between the upper and lower outer layers. This process produces void-free pa... | 11/13/2007 |
| 6898868 | Wrapping irregularly shaped objects in production line A hood-shaped foil covering an object is heat-shrunk around the object by displacing the object covered by the foil along a generally straight path in a transport direction past a stationary heater which is directed at an acute angle to the direction. The position o... | 05/31/2005 |
| 6892472 | Method and apparatus for cleaning and drying a workpiece A method and apparatus for rinsing and spin-drying a hydrophobic material such as a hydrophobic semiconductor wafer improves wafer drying while at the same time reduces the formation of residual contaminants on the dried surface of the wafer. This is accomplished by... | 05/17/2005 |
| 6477786 | Apparatus for drying batches of disks Liquid is removed from batches of substrates by apparatus and methods for drying substrates that have been wet in an elongated liquid bath. The substrates are moved relative to the bath and an elongated gas-filled volume at rates of movement selected acco... | 11/12/2002 |
| 6266895 | Apparatus for the drying of moist particulate material in superheated steam An apparatus for the drying of particulate material in superheated steam in a closed vessel (1) has a number of upwardly open, elongated and substantially vertical processing cells (2) which are placed around a central part with a heat exchanger (3). The ... | 07/31/2001 |
| 6216362 | Method and apparatus for control of the cooling rate of cast steel railway wheels The disclosure provides an apparatus for controlling the rate of heat transfer from as-cast railroad wheels after their removal from the mold utilizing a plurality of vertically adjustable caps with a cap positioned over each wheel to control the rate of ... | 04/17/2001 |
| 6122841 | Apparatus for the drying of moist particulate material in superheated steam Apparatus for the drying of particulate material in superheated steam in a closed vessel (1). The vessel consists of a number of upwardly open, elongated and substantially vertical processing cells (2) which are placed around a central part with a heat ex... | 09/26/2000 |
| 6023854 | Spin extractor The invention relates to a spin extractor for extracting liquid from wet laundry by rotating a drum with the laundry contained therein at high speed about a horizontal axis. In an inventive spin extractor, while an operation controller controls the speed ... | 02/15/2000 |
| 5901460 | Automatic system for drying high moisture content material from a source An automatic system for drying high moisture content material from a source. The system includes a dryer enclosing a bed inclined upwards from the bottom portion thereof to the top portion thereof, and a slat and picker drive motor for urging material dow... | 05/11/1999 |
| 5637336 | Process for drying malt A process and apparatus for the drying or kilning of malt in a substantially continuous operation. The malt is transported through one or more separate drying zones by means of fluid bed dryer units at which time tempered or conditioned air at a predeterm... | 06/10/1997 |
| 5570521 | Control system for a grain dryer and probe mounting apparatus therefor A control system (80-1, 80-2) is provided for a grain dryer (10) having a path (22, 24) along which grain is conveyed from an entry opening (28) between first (12, 14) and second (18, 20) walls provided with second openings through which drying air can fl... | 11/05/1996 |
| 5537758 | Drier for the continuous drying and conditioning treatment of hides fabrics A drier for the continuous drying and conditioning treatment of hides and fabric products has a drying chamber having first and second areas, a loading unit for conveying product to the first area, a conveyor for transporting product from the first area t... | 07/23/1996 |
| 5428906 | Sludge treatment system A method of converting industrial, domestic or other sludge, into a pelletized or granular fertilizer, as well as a sludge converter for practicing the method. The sludge is dewatered to form sludge cake solids which are dried in a dryer, and then sorted ... | 07/04/1995 |
| 5386764 | Grain roaster/cooler with preheater A grain roaster/cooler includes a fuel saving preheater and a roasting drum that rotates within a stationary housing. Heat radiated from the drum is captured in the form of hot air trapped in an air gap between the drum and the housing. A fan draws from t... | 02/07/1995 |
| 5344229 | Angle and velocity adjustment of a hot mix asphalt drum when output gas temperatures are uneven An apparatus for controlling the angular velocity and slope angle of a hot mix asphalt drum as a function of the temperature gradient across the drum outlet. Uneven gas outlet temperature indicates that the veil of RAP (Recycled Asphalt Pavement) in the d... | 09/06/1994 |
| 5303999 | Apparatus for control of recycled asphalt production Apparatus which controls recycled asphalt production rate, emissions, mix and output temperature in an asphalt mixer. Computer flow charts show control decisions based upon measured parameters which include drum slope, drum RPM, gas volume into the drum, ... | 04/19/1994 |
| 5279046 | Apparatus for conditioning divided or particulate material The invention provides a fluid bed conditioning apparatus (especially a dryer) which comprises a plurality of connected treatment zones, each zone having an apertured base and means for supplying a fluidized gas through said apertured base to each zone to... | 01/18/1994 |
| 5144755 | Grain dryer control system and method using moisture sensor A control system for a drying system of the type including a drying bin. Discharge particulate material moisture sensing means including a sensor assembly positioned in a discharge auger for sensing the moisture content of the particulate material. Contro... | 09/08/1992 |
| 5061448 | Incubator An apparatus for incubating and/or incubating shaking biological test specimens having a detachable autoclavable chamber. The main incubating chamber is provided with a support plate and diffuser plate for directing a controlled flow of heated air to the ... | 10/29/1991 |
| 4897932 | Master optical disk heat-drying apparatus An apparatus for drying optical disks heats a disk from the underside, and optionally blows clean air between the heater and the disk being dried in order to prevent contaminants from landing on the disk. Heat control is provided such that a surface tempe... | 02/06/1990 |
| 4750273 | Computer controlled grain drying A computer controlled grain dryer system includes a grain drying chamber, an air heater unit, and an arrangement of grain loading and unloading conveyors. A grain moisture sampling system receives a grain sample from the grain chamber and conveys the samp... | 06/14/1988 |
| 4734998 | Method and apparatus for dehydrating toxic chemical sludge A method and apparatus for same are provided to dehydrate a toxic chemical waste sludge to a powder by an internal heat source and to deposit said powder into a container, said apparatus receiving said sludge from a holding tank hopper having means for wi... | 04/05/1988 |
| 4693016 | Drying apparatus A drying apparatus for drying photographic paper includes a rotary drum and a duct having a recess which is provided with air outlet bores. A photographic paper passing area is defined between the outer periphery of the drum and the recess of the duct. Th... | 09/15/1987 |
| 4479310 | Continuous dehydration device and process Device for the continuous dehydration of products of the type comprising a stack of endless belts, travelling in alternate directions, characterized in that, on the one hand, only one (33) of the ducts (33, 34) is provided with a heating means (14) and wi... | 10/30/1984 |
| 4095645 | Linear uniform heat wrap control A heat wrap control for a preheater in a paperboard corrugator adjusts the amount of wrap of a moving web about a heated drum as a linear function of web speed to effect uniform heat transfer to the web.... | 06/20/1978 |
| 4087568 | Method and apparatus for controlling a material treater at maximum throughput with air velocity control An improved process and apparatus are disclosed wherein the resin treatment of a web on a material treater is conducted at maximum throughput in response to especially impinging air velocity control in the dryer.... | 05/02/1978 |
| 4035928 | Apparatus for drying grain The invention comprises an inverted frusto-conical shaped perforated floor which is mounted in a conventional grain drying bin in a raised position relative to the base floor thereof. The perforated floor has a plurality of grain discharge openings formed... | 07/19/1977 |
| 4033263 | Wide range power control for electric discharge lamp and press using the same A mercury vapor electric discharge lamp is supplied with AC electric power, which is variable over a wide range, to control the lamp output power in the form of the intensity of the electromagnetic radiation emitted over a correspondingly wide range of fr... | 07/05/1977 |
| 4004351 | Grain drying apparatus A grain drying apparatus including a body member into which grain is fed, within which heated air passes through the grain bed to dry it, and from which it is discharged by a metering device, the retention time of the grain in the drying zone being determ... | 01/25/1977 |
| 3986270 | Apparatus for continuously drying separate charges of material while maintaining the charges separate A plurality of members are arranged in side by side relation to form a plurality of horizontal rows, vertically stacked in a vertical drier. Movable means are associated with selected rows of the members and are movable to form a floor to separate one par... | 10/19/1976 |
