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US 4,101,128 AGranted
Practice tennis device
OwnerRobert Yelleninventor
Life of this patent
Estimating the term…
Abstract
A practice tennis device, whose weight is preferably equal to the weight of a regulation tennis ball, that includes a section of a tennis ball or a sectioned tennis ball with a flight cone means equal in weight to the removed section of the tennis ball. The weight and feel by the players using tennis racquets in contact with the practice tennis device is very similar to a conventional tennis ball while the aerodynamic qualities are similar to a badminton shuttlecock thereby allowing a user to practice tennis in a restricted practice area.
Claims9
A practice tennis device comprising:
- a first portion of a regulation spherical tennis ball of at least one-half of the spherical tennis ball, and
- a cone means generally equal to the weight of the other portion of the tennis ball severed from said first portion, said cone means connected to said first portion of said spherical tennis ball providing a tennis practice device with a weight generally equal to the weight of a regulation spherical tennis ball providing a player with the same feel when a tennis racquet hits the device as when the tennis racquet hits a regulation tennis ball and said cone means including a winged means for stabilizing said device in flight.
Dependencies are inferred from the claim text.