...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 |
| 7923661 | Talking iron The present invention features an iron being adapted to guide a user through an ironing task. In some embodiments, the iron comprises a plurality of fabric selector switches, a message controller, a speaker, a temperature sensor, and a microprocessor. In some embodi... | 04/12/2011 |
| 6925738 | Self lifting iron The present invention is a clothing iron capable of lifting the iron, and thus the hot sole plate of the iron, away from a surface on which the iron rests when the iron is not in use, to reduce or prevent damage to the surface on which the iron rests. An important c... | 08/09/2005 |
| 6720537 | Device for detecting, monitoring and controlling the operating status of an electric iron Device for detecting, monitoring and controlling the operating status of an electric iron which is provided with at least one electric heating circuit having a heating element and a first power switch of the iron connected in series to the heating element. The devic... | 04/13/2004 |
| 6548785 | Pressing iron with residual heat warning device The invention is directed to a steam iron (1) equippped with an electrically heatable soleplate (9) and having a residual heat warning device (16) which operates preferably independently of the line voltage and issues a flashing warning signal via a light... | 04/15/2003 |
| 6452501 | Automatic shut-off and indication device for an electric heating appliance and electric pressing iron comprising such a device An automatic shut-off and indication device for an electric heating appliance is provided which includes: a sensor (2) for sensing usage of the appliance and for providing a usage-signal (US) indicating a non-usage of the appliance; a switch (10) for off-switc... | 09/17/2002 |
| 6399919 | Pressing iron capable of continued temperature status indication after power interruption A pressing iron includes a soleplate mounted on a bottom portion of a housing, a temperature status indicator mounted on the housing, and a control circuit mounted in the housing and coupled electrically to the soleplate. A driver unit drives the temperat... | 06/04/2002 |
| 6396027 | Pressing iron with electroluminescent temperature status indicator A pressing iron includes a soleplate mounted on a bottom portion of a housing, an electroluminescent temperature status indicator mounted on an outer wall surface of the housing, and a control circuit mounted in the housing and coupled electrically to the... | 05/28/2002 |
| 5928536 | Electric soldering iron with heating energy regulating control means An electric soldering iron includes a perforated metal barrel having a front end and a rear end, a soldering tip axially extended from the front end of the soldering tip, a handle having a front end and a rear end, a connector connected between the rear e... | 07/27/1999 |
| 5403564 | Apparatus for heating and thermal decontaminating a pumpable or pourable material Apparatus for heating and thermal decontaminating, e.g. sterilizing, pasteurizing and/or disinfecting, pumpable or pourable material, includes a microwave unit forming a treatment chamber for receiving the material transported along a passageway and for s... | 04/04/1995 |
| 5337037 | Device for controlling at least two luminous condition indicating signals Control device for at least two luminous condition indicating signals (30, 41) mounted on a domestic electrical appliance provided with a quick opening adjustable thermostat (2) which passes over center. An insulating support (13, 14, 15) receives a therm... | 08/09/1994 |
| 4968963 | Thermostat with pilot light switch A thermostat for controlling the electrical heating element of an appliance has a user-activated control shaft for controlling the overall operation of the appliance. The thermostat includes a first switch controllable by a temperature sensing element for... | 11/06/1990 |
| 4673798 | Dual temperature electric curling iron having a safety shut-off circuit A dual temperature curling iron has a plastic handle and a metal barrel connected thereto. An electric heater positioned within the metal barrel and is arranged to rapidly heat the barrel and is selectively controlled by either a low temperature thermosta... | 06/16/1987 |
| 4418268 | Soldering iron holder with ready indicator and safety shutoff A soldering iron holder includes a box-shaped housing having mounted thereon a support supporting an electric soldering iron while not in use. A manually actuated power switch on the housing applies electric power to a soldering iron supported by the supp... | 11/29/1983 |
| 4261120 | Electric pressing iron having indicating ready light with improved switch means Ready light circuit is provided which comprises a simple third switch blade added to the standard thermostat two-blade switch in an electric iron. The invention involves the improvement of mounting the third blade on one of the other blades of the two-bla... | 04/14/1981 |
| 4189855 | Electric pressing iron having indicating ready light Ready light circuit is provided comprising a simple third switch blade added to standard thermostat two-blade switch in electric iron. Light is activated when bimetallic element of switch drives third blade into engagement with other blade as iron reaches... | 02/26/1980 |
| 4190764 | Control system and method and control device therefor A control system having a control unit provided with a single thermostatically operated control device for operatively interconnecting a heater to a source of energy when the output temperature effect of the heater is below a predetermined setting of a se... | 02/26/1980 |
| 4155182 | Temperature control for iron In a steam iron having a horizontal slot in the upper forward portion of the handle and a temperature control rod with its upper end disposed centrally of the slot, an improvement is provided in the temperature control assembly for operating the rod. A se... | 05/22/1979 |
| 4110601 | Control system and method and control device therefor A control system having a thermostatically operated control device for operatively interconnecting a heater to a source of energy when the output effect of the heater is below a predetermined setting of the control device and to disconnect the heater from... | 08/29/1978 |
| 4029940 | Percolator An electric percolator having a liquid containing section formed from an assembly of glass and other materials fixed together by means of a locking collar. The lid of the percolator is held in place by means of a quick-release latching mechanism which pre... | 06/14/1977 |