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 |
| 7287536 | Heater for heating the dishwashing liquid in a dishwasher In a dishwasher having a dishwashing compartment and a pump fluidically connected to the dishwashing compartment for channeling liquid to the dishwashing compartment, the pump disposed outside the dishwashing compartment and including a pump housing defining an inte... | 10/30/2007 |
| 7143766 | Temperature controlling device for aerosol drug delivery A portable air temperature controlling device useful for warming air surrounding an aerosolized drug formulation. Warming the air of an aerosol makes it possible to reduce the diameter of aerosol particles produced by an aerosol generation device. Additionally, warm... | 12/05/2006 |
| 6765339 | Infrared lamp and procedure for heating material to be processed An infrared lamp with a closed-off enveloping tube which encloses an emission source joined with contacts for a power supply in the form of a carbon ribbon which, extending in a direction of a long axis of the enveloping tube, determines an irradiation length of the... | 07/20/2004 |
| 6541743 | Electrical heater unit and heater A safe electrical heat energy generator which comprises a heater unit equipped with a set of systematically organized heat radiating metal fins. A feature of the invention is its reenforced compact structure in which a heating element arrangement and the ... | 04/01/2003 |
| 6072938 | Heater with medium-filled passive heating element There is disclosed an electric heating unit having a housing with air circulation apertures, a heating element, and a passive heat storage member adjacent the heating element. The heat storage member is preferably a sealed chamber containing a heat storag... | 06/06/2000 |
| 5826650 | Devices and methods for utilization of intermittently available electric energy for heating and cooling of habitable structures Low-cost off-peak electric energy or electric energy from natural energy sources is used for heating of cooling of system air, which is moved in a closed circuit to heat or cool the energy storage medium of permeable concrete and sized gravel in the exter... | 10/27/1998 |
| 5805766 | Heat releasing bag with sodium acetate solution and electric heating element producing infrared radiation A heat releasing chemical bag including a flexible water-tight bag, sodium acetate solution contained in the flexible bag, a triggering element mounted in the flexible bag and dipped in sodium acetate solution to activate sodium acetate solution, causing ... | 09/08/1998 |
| 5377297 | Method of modifying masonry furnace by inserting electric heating elements through furnace top cover A method of combining electric heating with a wood-heated masonry furnace is provided. The masonry furnace has an outer jacket (1) and at least one fire chest (5, 6) arranged therewithin for burning the wood. Cheek conduits (8) between the outer surface o... | 12/27/1994 |
| 4940885 | Heating apparatus including ulta-violet portion A heat transfer fluid is used in a heating apparatus including, in series, a fluid storage container including conventional primary heating system for bulk heating the heat transfer fluid to a preselected temperature, and a secondary heating system utiliz... | 07/10/1990 |
| 4343989 | Magnesium oxide based heat storage device A cast magnesium oxide based structure is utilized as a heat storage material. In preferred embodiments, the magnesium oxide heat storage material is cast directly about a source of heat. In another embodiment, a block of cast magnesium oxide based heat s... | 08/10/1982 |
| 4213032 | Control system for charging and discharging an electric storage heater The invention relates to an electric storage heater assembly which includes a core and a resistance heater for the core. A low tariff period switch and a charging switch are in series with the resistance heater. A triggering unit, which includes an integr... | 07/15/1980 |
| 4117307 | Control system for charging and discharging an electric storage heater A charging apparatus for an electric storage heater includes a resistance heater in series with a low tariff time switch and a charging switch. While the low tariff time switch is closed, usually at night, an integrator controlled by a differential amplif... | 09/26/1978 |
| 4097719 | Control system for charging and discharging an electric storage heater An electric storage heater assembly which includes a core and a resistance heater for the core. A charging switch is in series with the resistance heater and an electric comparator for operating the switch has two inputs connected to first and second cont... | 06/27/1978 |
| 4054126 | System for storing and releasing thermal energy A system for the cyclic storage and recovery of thermal energy utilizing a particulate bed of a decomposable heat storage material selected from the group consisting of the hydroxides of magnesium, calcium, and barium. The bed of heat storage material is ... | 10/18/1977 |
