The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 25, 1979
Filed:
Oct. 11, 1977
Jack S Haller, Chicago, IL (US);
Robert L Moore, La Grange, IL (US);
Rallymaster, Inc., Elk Grove Village, IL (US);
Abstract
A portable ball throwing macine employs a battery operated motor for projecting tennis balls for practice purposes. The balls are fed from a bin by means of a ball fence and agitator to a tube which conveys the ball to a ball track. A spring biased arm is cocked by the motor and released at the correct point in the cycle by operation of a cam gear and pawl. The arm then strikes the ball projecting it from the machine. Included in the device is an arrangement for oscillating the device from side to side to vary the pattern of balls projected from the machine and a gate mechanism to index balls onto the ball track.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile