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
Method for installing industrial components in an environment
Preserving and handling native data in hybrid object trees
Morphinan compounds
Method for producing vinyl acetate monomer
Transmission device
Pressure washer
Methods and apparatus for ultrasonic cleaning
  Randomly Featured Patents
Process for separating carbon dioxide from flue gas using parallel carbon dioxide capture and sweep-based membrane separation steps
Multispeed power tool transmission
Sensor device for detecting the degree of wetting and/or contamination of windows, especially windshields of motor vehicles
Opposed-magnet bearing with interposed superconductor
Equalizer networks providing a bump shaped response
Filter nut
Method for rotatably securing headpiece to the human body
Image signal processing apparatus and processing method
Motor drive control device
Truck/trailer brake control system