Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7826727 | Electric fireplace An electric fireplace includes a fireplace housing having a housing first and second side walls and a housing top wall, a housing floor, a housing back wall, and a housing open end opposite the housing back wall; a flame simulator mounted inside the housing; a diffu... | 11/02/2010 |
| 7822323 | Fan Fan includes wires electrically connected to the circuit board outwardly extends from a base toward a housing along a rib connecting the base supporting a motor and the housing. The housing includes a wire-receiving section defined by a through hole extending in the... | 10/26/2010 |
| 7305177 | Apparatus for joining roof covering materials An arrangement for an apparatus (1) for application of roof covering (2) and comprising a wagon (4) moveable by aid of wheels (3) intended to join together two unrolled rolls of roof covering in connection to a joint (5) on top of ... | 12/04/2007 |
| 7133604 | Infrared air heater with multiple light sources and reflective enclosure An air heater is provided for use in buildings or other structures. The air heater uses infrared lamps to generate a temperature rise in a forced air chamber that contains several infrared lamps, in which two ends of the chamber act as an inlet and an outlet, and in... | 11/07/2006 |
| 7097655 | Electric heat therapy technique and instrument An electric heat therapy instrument has an electric ampere controller 1 connected by two outside electric wires 2 to a 110-v electric outlet. The handle tube 3 is joined in its inferior extreme to a heating tube 9. A 110-v, 20-w bulb 6... | 08/29/2006 |
| 7046918 | Space heater with pretreated heat exchanger A space heater with a linear source of infrared radiant energy in heat exchange relationship with a heat exchanger formed of copper or aluminum material. The copper is pretreated to soften the copper and partially blacken the surface thereof. The aluminum is anodize... | 05/16/2006 |
| 6885810 | Electrically heated hair dryer with catalytic odor filter The handheld hair dryer for generating a heated air stream has a blower for generating an air stream, an electric heater for heating the air stream, a catalytic odor filter for deodorizing the air stream and a thermal radiator for heating the catalytic odor filter. ... | 04/26/2005 |
| 6437292 | Rapid infrared heating of a surface High energy flux infrared heaters are used to treat an object having a surface section and a base section such that a desired characteristic of the surface section is physically, chemically, or phasically changed while the base section remains unchanged.... | 08/20/2002 |
| 6344631 | Substrate support assembly and processing apparatus A substrate processing assembly includes an edge support and a heat distributing plate to absorb and transfer heat energy via radiation from a radiant heat source to a substrate on the edge support. The edge support defines a substrate support location to... | 02/05/2002 |
| 6304721 | Arrangement for creating heat irradiation of a surface A radiant heater useful for softening and removing paint from a surface is disclosed. The heater has a main component in the form of a box that opens at one side. The open side allows for heated air to heat a surface. The box has a suction opening and an ... | 10/16/2001 |
| 6285828 | Infrared hair dryer heater A hair dryer having both a fan-forced convection heater and radiant heater which emits energy having wavelengths in both the infrared and visible spectrum. The housing of the dryer is translucent to visible light but absorbent of infrared radiation and ar... | 09/04/2001 |
| 6154606 | Heater A radiant heater mounting heating elements in a sealed housing with a ceramic heat transmitting wall. A fan is mounted in the housing to cool the heating elements and in practice provide additional heat. There are also vent assemblies which prevent water ... | 11/28/2000 |
| 5820829 | Hand-operated polymerizer A hand-operated polymerizer for the polymerization of synthetic materials, such as dental plastics. The polymerizer has a housing in which a light source and a fan are disposed, and which includes a light-emitting opening for emitting the light generated ... | 10/13/1998 |
| 5058196 | Electric infrared heater having a gas permeable electroformed porous metallic panel coated with a porous ceramic far-infrared radiating layer An electric far-infrared heater has a plate-like porous metallic panel formed by an electroforming process installed in a box-like housing over an electric heating element therein. The panel is heated by the element and has its outer surface covered by a ... | 10/15/1991 |
| 4602143 | Infrared hair styling device A curling iron provided with an infrared radiation source within a hollow barrel for radiating infrared radiation within a predetermined band. The barrel is substantially transparent to radiation within the band emitted by the source. The curling iron is ... | 07/22/1986 |
| 4395619 | Hand held hair dryer with shock mounted quartz tube heater A hair dryer having a quartz glass tube heater to produce radiant heat has a shock mount sub-assembly to resist breakage of the tube when the hairdryer is subjected to drop tests or other selected concussions. The shock mounts include spring members which... | 07/26/1983 |
| 4382174 | Infra-red hair dryer There is disclosed a hand held pan shaped, infrared hair dryer containing a perforated air diffuser which can function as an infrared reflector if the air diffuser is shiny. The air diffuser also protects a quartz tube infrared emitter. A fan rotated by a... | 05/03/1983 |
| 4323761 | Radiant heat hair dryer A radiant heat hair dryer is provided, using a disc-shaped casing in which is mounted a ring-like, infra-red radiator, together with reflector means for directing the infra-red radiation through a grille-like member, that is shaped and constructed to supp... | 04/06/1982 |
| 4263500 | Infrared heating hair dryer A hair dryer is provided which dries hair by directing thereagainst radiant infrared heat energy. The dryer includes an infrared (IR) energy source, such as a silicone carbide igniter, an anodized parabolic reflector for modifying the wavelength of IR rad... | 04/21/1981 |
| 4159411 | Portable radiant heating apparatus A portable radiant heating apparatus includes a pair of linearly extending members pivotally attached to one another adjacent a first end thereof and pivotal about the pivotal attachment to be generally parallel to one another. A lamp receiving electrical... | 06/26/1979 |
