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 |
| 7591731 | Proposed running track design for fairer 200 m and 400 m races The present invention is directed to a system and method for conducting a more fair race around an oval track by having runners in each lane run equal arc angles. Such a configuration eliminates the disproportionate effect of centrifugal force on competitors running... | 09/22/2009 |
| 7357727 | Auto race track design A racetrack designed to accommodate various types of auto racing class including Indy, CART, Formula 1 etc. is disclosed. The race track of the present invention is a continuous closed circuit track with at least two loops which loop about a common center area and w... | 04/15/2008 |
| 7115071 | “Figure-eight” track, apparatus and method for sensory-motor exercise A track for cognitive and physical training has a figure-eight surface with both or alternate inner and outer borders. Adjustable weight-bearing rails inside and outside the track assist rehabilitation. Gates in outer rails admit users to the track. Oppositely swing... | 10/03/2006 |
| 7086922 | Track for model cars A race track for model cars with series of pressurized air conduits. The track is designed to race at least two cars in a manner similar to a “Drag Race.” Each car has its own lane. The system of pressurized air propels the cars with bursts of air from jets. The... | 08/08/2006 |
| 6991548 | Elevated wood and concrete racetrack for go-karts and associated methods An elevated wood and concrete racetrack includes a wooden support surface having a plurality of floor boards laid flat to form at least one straightaway, and at least one banked curve, each floor board of the plurality having two lengthwise, substantially parallel, ... | 01/31/2006 |
| 6920652 | Top for starting platform for swimming pool A top for a starting platform at one end of a swimming pool has an upper surface, which is adapted to support both feet of a swimmer in a starting position, and a lower surface, at which the top is mountable so that the upper surface slants downwardly and frontwardl... | 07/26/2005 |
| 6920658 | Racetrack bridge A bridge for use over a racetrack surface is provided. The racetrack surface has a cross-track width. The bridge includes a bridge structure supported over the cross-track width of the racetrack at a height sufficient to provide clearance for use of the racetrack. T... | 07/26/2005 |
| 6910972 | Real-size simulated pneumatic drag strip ride A real-size simulated drag strip ride is presented which recreates the physical and visual sensations of a drag race. A pair of real-size dragsters are positioned along specified and controlled parallel linear tracks. The occupant is positioned inside the driver's c... | 06/28/2005 |
| 6908396 | Method for constructing a race track for remote control toy vehicles and apparatus therefor A race track for remote control toy vehicles includes a plurality of interlocking race track segments of several different configurations. Each race track segment includes a removable side rail. The race track is arranged so that the perimeter of the race track is c... | 06/21/2005 |
| 6698141 | Convertible stadium and method of operating A convertible public exhibition facility includes a stadium having an exhibition area and a seating area that is situated about the exhibition area for permitting spectators to view activities taking place in the exhibition area. The exhibition facility f... | 03/02/2004 |
| 6523188 | Top for starting platform for swimming pool A top for a starting platform at one end of a swimming pool has an upper surface, which is adapted to support both feet of a swimmer in a starting position, and a lower surface, at which the top is mountable so that the upper surface slants downwardly and... | 02/25/2003 |
| 6505993 | Method and device for braking vehicles A method and a device for braking vehicles, in particular race car vehicles at the edge of a racetrack, whereby an elastic, safety wall consisting of individual elements linked together movably like a chain and extending far beyond the critical location i... | 01/14/2003 |
| 6464593 | Amusement park having an elevated racetrack and associated methods The invention discloses an amusement park comprising an elevated wooden racetrack built in combination with another park activity. The combination comprises a wooden racetrack surface extending along at least one portion elevated above ground level, and a... | 10/15/2002 |
| 6244968 | Elevated wooden racetrack for go-karts and associated methods An apparatus and methods for a racetrack for operating go-karts and similar motorized amusement vehicles thereon. The racetrack includes a wooden racetrack portion supported on a frame having a plurality of vertical support posts connected to a plurality ... | 06/12/2001 |
| 6113077 | Racing rail and post cover apparatus Offset racing rail arrangements (16) of the fixed and relocatable variety are made safer by fitment of a cover designed to prevent riders from falling between and sometimes onto the poles which support the racing rail. A cover (22) is provided which is re... | 09/05/2000 |
| 5977493 | Swimming race touch panel A touch panel for a swimming race comprises a rear panel, a front panel spaced from and opposed to the rear panel and movable vertically and horizontally relative to the rear panel, and a top edge panel having a first end portion connected to the rear pan... | 11/02/1999 |
| 5941173 | Race track A unique race track construction for human-driven cars having a first and second linear track which are parallel to each other and in which each linear track has a beginning and an end. A first curvilinear track has a both first end and a second end with ... | 08/24/1999 |
| 5938564 | Track runner pacing device A track runner pacing device is provided including a running track. A pacer housing is adapted to move around the running track. A control mechanism serves to effect the movement of the pacer housing about the track at a speed calculated from a distance a... | 08/17/1999 |
| 5916031 | Diving platform cover This invention is a slip resistant diving platform cover that can be easily installed or removed from a diving platform. The cover has a top mat laying in contact and covering a top plate of the diving platform, a front mat laying adjacent to a front plat... | 06/29/1999 |
| 5813351 | Racetrack structure A racetrack structure includes several track sections, the track sections are engaged with each other by hinges, therefore the racetrack can be folded for storage. Each of the track sections of the racetrack structure has PC boards provided at two ends th... | 09/29/1998 |
| 5800272 | Motor vehicle race track having a substantially "figure eight" configuration Motor vehicle track having a substantially "figure eight" configuration which includes a underpass and an overpass at different elevational levels at the intersection of the substantially "figure eight" configuration. Such a motor vehicle race track forms... | 09/01/1998 |
| 5734315 | Track alert system for automobile racing A track alert system for automobile racing employs a transmitter for transmitting a selected one of a plurality of channel signals, each of which is indicative of a particular race track flag condition, a receiver capable of receiving each of the transmit... | 03/31/1998 |
| 5645368 | Race track with novel crash barrier and method A race track is disclosed having a tri-oval banked, racing surface surrounded by a barrier support material delineating a race barrier support surface at a level below the racing surface. A plurality of barrier modules are mounted on the support surface i... | 07/08/1997 |
| 5188567 | Racetrack A racetrack includes a substantially circular outer track, a centrally located staging and finish area, and a plurality of substantially radially aligned juxtaposed racing lanes extending from within the centrally located area to the outer track. Racers r... | 02/23/1993 |
| 4785282 | Pulse coded warning system for racetrack A race condition alerting system includes a transmitter actuated by a flagman or other race official and a receiver unit in each race car. The transmitter transmits a pulse encoded signal repeatedly over about a ten second interval, with a digital code th... | 11/15/1988 |
| 4780085 | Lap timing device A lap timing device for swimmers utilizes a proximity sensor to detect the completion of each lap a swimmer swims during a training session. The device, which is preferably portable and in the form of a starting block of standard AAU dimensions, is placed... | 10/25/1988 |
| 4587385 | Touch pad indicating arrival during swimming contest A non-water-tight touch pad for swimming competitions mounted partially submersed on the finishing wall of a swimming pool. The pad includes two plates located in front of each other. The front plate is perforated plastic material and is loosely inserted ... | 05/06/1986 |
| 4518266 | Swimmer's lap pacer This invention is a device for keeping track of swimmer's time and distance; including a case containing a split timer, an elapsed timer and a lap counter in an electric circuit activated by a kickpad contacted by the swimmer at each lap.... | 05/21/1985 |
| 4476358 | Touch pad indicating arrival during swimming contests A not-watertight touch pad for swimming competitions mounted partially submersed on the finishing wall of a swimming pool. It includes two plates located in front of each other, the front one of which is somehow perforated and loosely inserted in a frame ... | 10/09/1984 |
| 4336932 | Edging for the track inside of a sports installation Edging for the track inside of a sports installation consists of a plurality of individual sections (1) abutting at their interfaces, each of which has an upper header body (2) of hard polyurethane synthetic material with a longitudinal slot 2a. Each sect... | 06/29/1982 |
| 4325546 | Modular athletic playing surface with tuned compliance A closely spaced array of modules forms an athletic playing surface characterized by a high degree of vertical compliance, an extreme resistance to lateral shear, and a high degree of uniformity of response. Each module has a laminated construction that i... | 04/20/1982 |
| 4307879 | Athletic playing surface An extended athletic playing surface that increases running speed of an athlete performing on the surface and reduces the likelihood of injury to the athlete has a multi-layer construction. The athlete's foot impacts on an upper surface of a sheet materia... | 12/29/1981 |
| 4194101 | Starting block switch assembly for timed swimming events For detecting false starts and relaying failures in swimming competitions, starting block is provided comprising a fixed base and a movable platform arranged to support a swimmer. The base and platform carry electrical contact terminals, the platform bein... | 03/18/1980 |
| 4156870 | Sports timing system The invention concerns sports timing systems and in particular connections etween a central processor which determines the performances of the competitors and the peripheral devices which provide such processor with the necessary information such as starti... | 05/29/1979 |
| 4134230 | Motorcycle racing starting gate A starting gate for motorcycle racing of the moto-cross type including a plurality of individual U-shaped members each of which can be raised to a cocked position ahead of the front wheel of a racing motorcycle, a camming device for maintaining the member... | 01/16/1979 |
| 4134583 | Starting assist device for swimmers By providing a ramped plate which is removably positioned in a swimming pool directly abutting the swimming pool wall with the ramped plate forming an acute angle therewith, a starting assist device is provided for backstroke swimmers by which they can se... | 01/16/1979 |
| 4117283 | Swimming pool touch pad construction A touch pad as used in swimming pools for timing competitions has instead an integrally formed striker plate or one comprising independently mounted panels, a plurality of hollow extruded plastic panels each with a hook portion on one edge and a hook rec... | 09/26/1978 |
| 3994491 | Starter gate A starter gate comprises a plurality of cable-holding members pivotally mounted on base members. A latching mechanism latches the cable-holding members in a vertical position thereby maintaining cables in a suspended condition behind which vehicles, anima... | 11/30/1976 |
| 3951403 | Starting aligner for motor vehicle racing Aligning apparatus for directing the passage of racing motor vehicles at the start of a race including: a frame overlying a race track, and resilient track dividers depending from the frame which define racing lanes through which the racing vehicles pass ... | 04/20/1976 |
| 3946312 | Timing apparatus and system A system and method by which antenna type loops are situated at predetermined positions about a race track in which a plurality of contestants are passed sequentially over the loops while carrying a transmitter arranged to transmit a low radio frequency s... | 03/23/1976 |
