Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Table tennis ball delivery device










Image Number 4 for United States Patent #7213724.

A table tennis ball delivery device adapted to be secured to or adjacent the side of a table tennis table for directing a ball to a player upon the activation of a switch by the player. The device includes a chamber for carrying a supply of table tennis balls, a ball transfer mechanism for selectively advancing an individual ball from the chamber to a location over a flexed or cocked delivery spring oriented such that upon activation of the switch by a player, the spring is released so as to strike a ball and launch the ball to the player. The ball transfer mechanism is coordinated with the spring cocking and release mechanism so as to position another ball over the delivery spring and re-cock the spring immediately upon the launching of the ball to the player.








 
 
  Recently Added Patents
Spray drying vancomycin
Stable aqueous composite compositions
System and method for reducing the risks involved in trading multiple spread trading strategies
System and method for supporting fibre channel over ethernet communication
Active pellet without chemical additives
Integrated monitoring in problem management in service desk
Input device with photodetector pairs
  Randomly Featured Patents
Long-life polymer packaging for an anethole-based drink and process intended to limit the loss of anethole contained in a solution
Bowlers' hand-drying bag
Facile synthesis of 3'-phosphoadenosine 5'-phosphosulfate (PAPS)
Downlink transmit beamforming
Disk drive testing
Dimmable fluorescent lamp ballast
Valve position indicator
Disposable protective container for hypodermic syringes
AtMIN7 mediated disease resistance to Pseudomonas syringae in Arabidopsis
Tires