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 |
| 7094135 | Abrasivejet cutting head with back-flow prevention valve An abrasivejet cutting head is disclosed that includes a valve assembly for preventing back-flow to the abrasive hopper of abrasive-laden fluid from the cutting head when the discharge path for the abrasivejet becomes clogged or otherwise blocked. The valve assembly... | 08/22/2006 |
| 6969010 | Landscape and agricultural sprayer foam marking attachment A foam marking attachment to a lawn and garden tractor or tractor mounted agricultural implement spray apparatus attaches to a low voltage DC power supply of the tractor, applying a left or right side droplet of liquid marking foam to the outer edge of a traveled pa... | 11/29/2005 |
| 6536685 | Foamer A foam dispenser utilizes a deformable reservoir, a foamable fluid and air or other gas; a discharge device and an arrangement for producing foam that includes a plurality of mesh screens. When the dispenser is operated, air from inside the dispenser is m... | 03/25/2003 |
| 6453671 | Combustor swirler assembly Service life is improved in a swirler assembly including a primary swirler and a secondary swirler having a venturi formed thereon and being disposed in engagement with the primary swirler. First and second rails are formed on the secondary swirler and ar... | 09/24/2002 |
| 6237815 | Dispensing device including a rotatable closing cone A dispensing device for pourable, especially powdery material, has a charging chute, a vertical filling pipe adjoining the lower end of the charging chute, and a closing cone arranged at the lower end of the filling pipe. The closing cone is displaceable ... | 05/29/2001 |
| 6200387 | Method and system for processing substrates using nebulized chemicals created by heated chemical gases Invented is a method and system for wet processing substrates (especially for semiconductor wafers and flat panel displays) using nebulized chemicals created and carried by heated chemical gases. Different heated nebulized process chemicals are sequential... | 03/13/2001 |
| 5000624 | Powder preparation system for coating powder Fluidized powder in a powder preparation container is treated to impart to it a desired moisture content through the feeding into the fluidized powder of a stream of compressed air whose moisture content and temperature have been carefully regulated. Powd... | 03/19/1991 |
| 4971669 | Process and device for the continuous vaporiation of volatile active compounds The invention relates to a process for the vaporization of volatile active compounds and mixtures of active compounds according to which the active compound or the mixture of active compounds is conveyed from its storage vessel by the use of an electrolyt... | 11/20/1990 |
| 4877158 | Fluid dispensing apparatus The fluid dispensing apparatus includes a body portion supporting a pump assembly and a valve assembly. A fastening ring has an internal screw-thread for screw-threadedly engaging the neck of a container. A fastening ring retaining member allows the ring ... | 10/31/1989 |
