Tennis ball serving device

Details Tennis ball serving device Tennis ball serving device

2006-09-05

2006-09-05

Ricci, John A. (Department: 3712)

Mechanical guns and projectors

Projectile impelled by coacting wheels

Reexamination Certificate

active

07100594

ABSTRACT:
Tennis balls are propelled to a person practicing the game. The balls are propelled by a head that is vertically repositionable and horizontally aimable. The apparatus includes a main frame, including an attached control box, having a dual hinge; a deformable parallelogram lifting arm, having a first end and a second end, attached at its first end to the dual hinge on the main frame; a movable vertically extending member, rotatably receiving and supported by the second end of the lifting arm at a first end; an oscillating bracket, disposed at a second end having at least one upwardly extending arm, rotatable around a vertical axis; a ball propulsion device mounted on the oscillating bracket to be horizontally rotatable; and a feed support attached to the oscillating bracket above the ball propulsion device providing a source of balls for the ball propulsion device.

REFERENCES:
patent: 3785358 (1974-01-01), D'Angelo et al.
patent: 4442823 (1984-04-01), Floyd et al.
patent: 5125653 (1992-06-01), Kovacs et al.
patent: 5964209 (1999-10-01), Boehner
patent: 6237583 (2001-05-01), Ripley et al.

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