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."
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6912963 | Apparatus for preparing soil for the placement of seed and additive An apparatus for preparing soil for the placement therein of at least one of seed and fertilizer. A frame is provided with there being first structure on the frame for penetrating the soil to create an opening for at least one of seed and fertilizer as the frame is ... | 07/05/2005 |
| 6554079 | Earth working disc with large notches A tillage member in the shape of a disc which has large notches which cause the disc to turn at the same speed as the forward speed of an implement to which it is attached, thereby mixing the soil instead of merely turning over the soil. In order to achie... | 04/29/2003 |
| 6102132 | Farm land coulter assembly A coulter mounting assembly includes a torsion tube that absorbs upward movement of the coulter while maintaining downward force on the coulter. The torsion tube is mounted on a support beam which depends from a farm implement. A lever arm attaches to the... | 08/15/2000 |
| 5279236 | Seed planter A seed drill for planting seed in untilled ground. The drill is pulled by a prime mover and includes an array of double disk furrow opening assemblies in conjunction with a seed dispensing mechanism. The seed drill is equipped with an array of forwardly l... | 01/18/1994 |
| 5255617 | Ridge preparation tool for seed planting equipment The ridge preparation tool is adapted to be attached to a seed planter directly ahead of the trench-forming structure of the planter so as to skim off the crest of the ridge for the production of a clean, relatively narrow strip of prepared soil in which ... | 10/26/1993 |
| 4616579 | Apparatus for injecting liquid manure into the ground Liquid manure contained in a trailer-mounted tank is supplied to a downwardly extending injector pipe whose lower end carries a disc adapted to rotate about the axis of the pipe. During forward travel of the trailer, the rotatable disc slices through the ... | 10/14/1986 |
| 4275671 | Seed sowing implements The invention provides a seed sowing coulter implement comprising a vertical cutting blade in the form of a rotatable disc disposed in the line of travel and having a peripheral cutting edge part arranged to penetrate and slit the ground as the implement ... | 06/30/1981 |
| 4070974 | Disc trench filler for a no-till planter A disc-like device, the peripheral edge of which is formed in a plurality of oppositely turned curved segments is attached to a no-till planter as used in planting seed crops in fields which have not been plowed. The disc-like device is arranged to follow... | 01/31/1978 |
