...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 |
| 7832592 | Beverage dispensing gas consumption detection with alarm and backup operation A CO2-based beverage dispensing system includes a CO2 monitoring unit operative to emit a warning upon detecting excessive consumption of CO2 gas. The CO2 monitoring unit includes a gas input port, a gas output port, a CO | 11/16/2010 |
| 7762428 | Emptying device For bubble free emptying of pasteous substances from drum-shaped containers these are pumped out through a drum follower plate placed onto the paste. In a refinement, the drum follower plate is provided hollow with a lower grid plate and before the beginning of the ... | 07/27/2010 |
| 7717294 | Beverage dispensing gas consumption detection with alarm and backup operation A mixed-gas beverage dispensing system for driving beverages from a container to a tap with a predetermined ratio of carbon dioxide (CO2) and nitrogen (N2) gas includes one or more monitors to detect excessive consumption of N2. The ... | 05/18/2010 |
| 7228989 | High efficiency beverage vending machine The invention provides a vending machine for cooling food products. The vending machine includes a housing defining an interior. The vending machine also includes a plurality of holding members substantially thermally isolated from one another and disposed in the in... | 06/12/2007 |
| 7191919 | Weight-loss weigh feeder with pressure compensation A system is disclosed that minimizes the effect of internal pressure upon weight-loss weighing systems. The system can include a flexible gas purge line that pressurizes the system as well as a pressure compensator that negates the adverse effects of internal pressu... | 03/20/2007 |
| 7175048 | Method and device for gravimetric dosing bulk material In order to increase the dosing accuracy of a dosing device, the bulk material is temporarily stored upstream from a reservoir (1) in an intermediate storage container (6) and is transferred only when a compensating pressure value is reached. The inven... | 02/13/2007 |
| 7075019 | Measuring and dispensing system for solid dry flowable materials An apparatus for measuring and dispensing solid dry flowable materials, comprising a supply container (10), a reserve hopper (18), a means for connecting said supply container (10) to said reserve hopper (18), a means for weighing said re... | 07/11/2006 |
| 7007822 | Chemical mix and delivery systems and methods thereof The present invention relates to chemical delivery systems and methods for delivery of liquid chemicals. In one embodiment, the present invention relates to systems having multi-reservoir load cell assemblies for delivering chemicals used in the semiconductor indust... | 03/07/2006 |
| 6840157 | Coffee apparatus with vacuum-fresh coffee beans A coffee apparatus comprises a coffee grinder which receives the coffee beans from a chamber which has a hermetically-sealed lid and a manually-operable venting valve, a sealing assembly for the outlet of the chamber, a vacuum pump capable of evacuating the chamber ... | 01/11/2005 |
| 6827529 | Vacuum pneumatic system for conveyance of ice Vacuum pneumatic conveying apparatus and method are described to provide for a simple, economical, convenient (and preferably automatic) system for conveying ice on an as-required basis from a source such as an ice maker to one or more receptors at locations remote ... | 12/07/2004 |
| 6796458 | Air supply apparatus for semiconductor device fabricating equipment An air supply apparatus includes a buffer tank for receiving and storing ultra-pure water from an ultra-pure source, a temperature/humidity controller (THC) for conditioning the air using the ultra-pure water from the buffer tank, an ultra-pure water pipe for delive... | 09/28/2004 |
| 6719169 | Toothpaste dispenser and tube holder A toothpaste dispensing and tube-storing unit that can neatly store multiple tubes of toothpaste in separate compartments and easily and efficiently be used to dispense toothpaste from the tubes. The unit can hold one or more toothpaste tubes, as well as several too... | 04/13/2004 |
| 6675987 | Chemical delivery systems and methods of delivery The present invention relates to chemical delivery systems and methods for delivery of liquid chemicals. In one embodiment, the present invention relate to systems having multi-reservoir load cell assemblies for delivering chemicals used in the semiconduc... | 01/13/2004 |
| 6318418 | Metering apparatus for pourable bulk material A worm metering apparatus which includes a metering tube having an end, the end has an annular barrier element, made of sintered metal, that communicates with a negative-pressure source and an overpressure source gas source. A pressure meter is also provi... | 11/20/2001 |
| 6129098 | Apparatus for injecting constant quantitative chemicals and a method thereof An apparatus for injecting constant quantitative chemicals which is capable of injecting a chemical solution into ultra pure water without generating particulate contamination, and furthermore, the injection interval of the chemical solution to the cleani... | 10/10/2000 |
| 6098843 | Chemical delivery systems and methods of delivery The present invention relates to chemical delivery systems and methods for delivery of liquid chemicals. In one embodiment, the present invention relates to systems having multi-reservoir load cell assemblies for delivering chemicals used in the semicondu... | 08/08/2000 |
| 5871120 | Vacuum storage and dispensing container A vacuum storage and dispensing container for use with perishable items, particularly food products, and more particularly for use with roasted whole-bean coffee in any retailing application, to extend shelf life of the perishable item. The invention incl... | 02/16/1999 |
| 5851493 | Injection system and method for feeding particulate to a process vessel An injection system and method for feeding a particulate material to a process vessel, including a valve with at least one cavity adapted for receipt of a predetermined volume of particulate and a sweep stream source for providing a sweep stream having fl... | 12/22/1998 |
| 5669528 | Vacuum storage and dispensing container There is disclosed a vacuum storage and dispensing container for use with perishable items, particularly food products, and more particularly for use with roasted whole-bean coffee in any retailing application, to extend the shelf life of the perishable i... | 09/23/1997 |
| 5195654 | Method for feeding a mud-like catalyst into a polymerization reactor The invention relates to a method and device for feeding a mud-like catalyst mixture into a polymerization reactor. The catalyst mixture is fed from a container into a batching space of a feeder connected thereto, from which channel the catalyst mixture i... | 03/23/1993 |
| 4898527 | Apparatus for liquefying a thermoplastic high polymer material An apparatus for liquefying a thermoplastic, high-polymer material has a supply container for the thermoplastic material, heating means for heating the material in the supply container, a base part disposed beneath the supply container and containing a co... | 02/06/1990 |
| 4718575 | Apparatus for ascertaining the level of flowable material in dust separators and the like The hoppers of several dust precipitators are connected to a common readily accessible monitoring station by discrete conduits each of which has a first open end at a preselected level in the respective hopper, a second open end at the monitoring station ... | 01/12/1988 |
| 4687381 | Device for introducing a powder with catalytic activity into a fluidized-bed polymerization reactor Device and process for introducing a powder with catalytic activity into a fluidized bed polymerization reactor (1), the said device comprising: a storage enclosure (2) for powder with catalytic activity, provided with a feed line (3) for powder with catalytic... | 08/18/1987 |
| 4669634 | Apparatus and process for the metering of predetermined quantities of at least one product An apparatus and process for the metering of predetermined quantities of at least one product to be delivered to at least one mobile receiver by means of a distribution station which comprises means effecting the discharge of a product from a container, a... | 06/02/1987 |
| 4624391 | Automatic wine dispenser An automatic dispenser for wine has a first reservoir which holds an inverted bottle of wine and a second reservoir connected to the first reservoir through a check valve for holding a supply of wine received from the first reservoir. A solenoid actuated ... | 11/25/1986 |
| 4616694 | Fireproof cabinet system for electronic equipment A fireproof cabinet system for electronic equipment including a wall shield with an outer metal layer that acts as a radiation shield, an inner support layer and an insulation layer. A water supply nozzle is mounted on top of the fireproof cabinet system ... | 10/14/1986 |
| 4590977 | Apparatus for metering bulk material An apparatus for metering bulk material includes a downwardly open supply chute; a metering screw having an intake length portion for receiving bulk material from the supply chute; a motor operatively connected to the metering screw for imparting rotation... | 05/27/1986 |
| 4211251 | Automatic purging system A system for automatically purging heating mantles and other apparatus including an enclosed volume capable of low level pressurization. The system comprises a pressure sensor for sensing the fluid pressure within the enclosure, which may be the space bet... | 07/08/1980 |
| 4169225 | Electric heating apparatus with automatic purging system A system for automatically purging heating mantles and other apparatus including an enclosed volume capable of low level pressurization. The system comprises a pressure sensor for sensing the fluid pressure within the enclosure, which may be the space bet... | 09/25/1979 |
| 4165818 | Portion controlled frozen food dispenser with pump control The specification discloses a system and process for producing discrete chilled products having preselected weights from a semi-fluid mixture. The semi-fluid mixture is pumped along a distribution path to an extruding manifold which extrudes a plurality o... | 08/28/1979 |