Ball tossing apparatus
CA 1267578 C · Owner: Whitfield, Terry B. · Inventors: Whitfield, Terry B.; Shigeta, Masami
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
29-, 16373:DAD:357, BALL TOSSING APPARATUS Abstract of the Invention, A ball tossing apparatus which automatically varies the direction of successive tosses is disclosed. The apparatus comprises a ball feeding unit and a ball tossing unit. The ball tossing unit comprises a housing which is pivotally mounted on a stand. A cam shaft is mounted in the housing and has a cam which extends through the bottom wall of the housing and rests on a tilt plate mounted on the stand. Rotation of the cam shaft and cam after each toss changes the tilt angle of the housing and therefore the direction of the next toss.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted April 10, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 2007.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.