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
Topical antibiotic composition for the prevention of Lyme disease
LED package chip classification system
Fluorine-free fused ring heteroaromatic photoacid generators and resist compositions containing the same
Signal transfer apparatus
Pallet
Terminal for flat test probe
Uplink synchronization management in wireless networks
  Randomly Featured Patents
Liquid-filled golf ball with preferential internal structures
Submerged plate for selective diversion of molten metal flow in a glass forming chamber
Method and system for processing data
Apparatus for controlling power supply to electronic devices
Downhole positioning system
Video signal frame search apparatus for selection of a desired frame
Water treatment plant
Coating for pipelines, tanks and structural steelwork
Strongly typed tags
System, method, and computer program product for automatic power management verification