Tennis ball retrieval system and method

Abstract

A tennis-ball collector which includes a chassis, a drive train, an energy source, wheels, and a motor. The tennis-ball collector is useful for collecting scattered tennis balls after a game or practice without the need to bend and pick them up by hand. The device moves balls using a vacuum system or a drive belt.

Claims

1. A tennis ball collector device for use on a ground surface, comprising: a chassis; a plurality of wheels connected to said chassis and being engageable with said ground surface; a motor connected to certain wheels of said plurality of wheels; an energy source; a drive train connected to said chassis and linked to said motor and energy source to propel said chassis about the ground surface on said certain wheels; a hopper removably mounted to said chassis, said hopper comprising a wall having an opening therethrough; a tennis ball receiver, said tennis ball receiver including a wall portion forming a channel to allow travel of a tennis ball therealong, said receiver including an outlet communicating with said opening of said hopper to allow passage of a tennis ball into said hopper; a drive belt mounted in said channel of said tennis ball receiver to convey a tennis ball on said belt, through said channel to said hopper via said opening of said hopper, said drive belt extending through said opening of said hopper and into said hopper; a radio device disposed in the chassis; and a control unit having a transmitter for transmitting commands to said radio device to actual movement of said chassis through said drivetrain.

2. The device of claim 1 in which said energy source comprises a battery pack.

3. The device of claim 2 in which said battery pack utilizes a lithium-ion rechargeable battery.

4. The device of claim 1 which additionally comprises a carrying handle on said chassis.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The figures which accompany the written portion of this specification illustrate embodiments and methods of use for the present disclosure, a tennis ball retrieval system, constructed and operative according to the teachings of the present disclosure.

(2) FIG. 1 is a perspective view of a tennis-ball collector during an ‘in-use’ condition.

(3) FIG. 2 is a perspective view of a tennis-ball collector.

(4) FIG. 3 is a perspective view of a tennis-ball collector.

(5) FIG. 4 contains top and side views of a drive belt of a tennis-ball collector.

(6) FIG. 5 is a flow diagram illustrating a method of using a tennis-ball collector.

(7) FIG. 6A is a perspective view of a tennis-ball collector.

(8) FIG. 6B is a perspective view of a tennis-ball collector.

(9) FIG. 7A is a top section view of a ball receiver of a tennis-ball collector.

(10) FIG. 7B is a front section view of a ball receiver of a tennis-ball collector.

(11) FIG. 8 is a perspective view of an automated tennis ball.

(12) Like figure designations denote like elements.

DETAILED DESCRIPTION

(13) As discussed above, embodiments of the present disclosure relate to a machine used to collect tennis balls and more particularly to a tennis ball retrieval system as used to improve the collection of scattered tennis balls after a game or practice without the need to bend and pick them up by hand.

(14) A remote-controlled machine that may be used for retrieving tennis balls that are scattered throughout the court after a tennis game or practice session. The tennis ball collecting device may aid those who, after a rigorous game, find it hard to bend over and pick up the scattered tennis balls. The tennis ball collecting device may be remote-controlled with a handheld remote, allowing a user to collect the balls while sitting down. The player may use the remote to direct the machine to gather the balls around the court. The tennis ball collecting device may use a vacuum to suck the ball up and into a ball storage container. Alternatively, the device may use a motorized belt arrangement to move the tennis ball into the container (hopper). The tennis ball collecting device may use a light on the front or back to allow for night-time use. The tennis ball collecting device may have a handle to allow easy carrying from a vehicle to the court or where needed.

(15) FIGS. 1-4 show various views of a tennis-ball collector system 100.

(16) FIGS. 1-4 show a tennis-ball collector system 100 during an ‘in-use’ condition according to an embodiment of the present disclosure. Here, tennis-ball collector system 100 may collect scattered tennis balls 5 after a game or practice without the need to bend and pick them up by hand. As illustrated, tennis-ball collector 101 may include chassis 110, drive train 130, energy source, wheels 160, and motor.

(17) FIG. 2 shows tennis-ball collector system 100 of FIG. 1. System 100 has a tennis-ball collector 101. As above, device 101 may include chassis 110, drive train 130, energy source, wheels 160, and motor. Chassis 110 may include ball collector 120, including inlet 121, ball receiver 122, ball channel 124, and hopper 126. The ball collector 120 may be mounted to the forward outer surface of chassis 110 for allowing balls 5 to travel into ball receiver 122, which, in some examples, activates a vacuum to propel balls 5 into and through ball channel 124 with walls 125 to hopper 126. In other versions, a ball 5 traveling into ball receiver 122 activates drive belt 1110 (FIG. 3) to propel balls 5 into and through ball channel 124 to hopper 126. Hopper 126 may be removably coupled to device 101 to allow removal of hopper 126. Device 101 may also include carrying handle 134 coupled to chassis 110. FIG. 4 depicts a view of drive belt 1110. Drive belt 1110 is installed around rollers 1140. This assembly is mounted in ball collecting device 101, as shown in FIG. 3.

(18) Drive train 130 drive may be coupled inside chassis 110 so that the energy source, wheels 160, and the motor propel chassis 110 around the court. The energy source may be configured to operate using a battery pack, which may use a lithium-ion rechargeable battery. Some examples use at least two wheels 160. Examples adapted to rough terrain may use more wheels 160.

(19) A user employs transmitter 150 to control the collector 101 through a wireless connection. The transmitter 150 controls collector 101 by transmitting movement commands to the receiver in the device radio 1501. The device radio or receiver operate servos to control drive train 130, which moves device 101 into a ball 5 making direct contact with the ball 5, causing the ball 5 to enter ball receiver 122, and in doing so triggers drive belt 1110 that moves balls 5 into and through ball channel 124 to hopper 126.

(20) FIG. 5 is a flow diagram 550 illustrating a method 500 for using a device 101. In particular, the method 500 for using a device 101 may include one or more components or features of device 101, as described above. As illustrated, the method 500 for using a device 101 may include the steps of 501, placing the device on the ground; 502, powering the device on; 503, using the remote control for controlling the device; 504, collecting the balls; 505, storing the balls in a hopper; 506, removing the hopper to retrieve the balls; and 507, storing the device.

(21) Steps 506 and 507 are optional and may not be implemented in all cases. Optional steps of method 500 are illustrated using dotted lines in FIG. 5 to distinguish them from the other steps of method 500. The steps described in the method of use can be carried out in many different orders according to user preference. The use of “step of” should not be interpreted as “step for” is not intended to invoke the provisions of 35 U.S.C. § 112(f). Under appropriate circumstances, considering such issues as design preference, user preferences, marketing preferences, cost, structural requirements, available materials, technological advances, etc., other methods for using a tennis-ball collector system are taught herein.

(22) FIG. 6A and FIG. 6B show another version of tennis-ball collector system 100. System 100 comprises tennis-ball collector 101. As above, device 101 may include a chassis 110, a drive train 130, energy source, wheels 160, and motor. Ball collecting device 101 includes ball collector 120. Ball collector 120 includes inlet 121, ball receiver 122, ball channel 124, and hopper 126. The ball collector 120 mounts to opening 1122, which passes through wall 1123 of hopper 126. Ball collector 120 scoops up ball 5 into ball receiver 122, which, in some examples, activates drive belt 1110 (FIG. 7A and FIG. 7B) to propel ball 5 into and through ball channel 124 through opening 1122 into hopper 126. In some versions, rotating brushes are used in place of drive belt 1110.

(23) As before, ball collecting device 101 comprises a drive train 130, chassis 110, energy source, wheels 160, and motor, which propel ball collecting device 101 around the court.

(24) FIGS. 7 A and 7B show section views of ball collector 120, which includes inlet 121, ball receiver 122, ball channel 124, outlet 1121, and drive belt 1110. Drive belt 1110 operates somewhat like a conveyor belt. It runs on rollers 1140. FIG. 7A shows a flat side of belt 1110. FIG. 7B shows a side view of drive belt 1110 and rollers 1140.

(25) FIG. 8 shows an automated tennis ball collector system. The automated tennis ball collector system 100 may include a chassis 112, a drive train 130, an energy source 140, a plurality of wheels 160, and at least one motor 170.

(26) These embodiments of the invention are exemplary, and numerous modifications, variations, and rearrangements can be readily envisioned to achieve substantially equivalent results, all of which are intended to be embraced within the spirit and scope of the invention. Further, the purpose of the abstract is to enable the U.S. Patent and Trademark Office and the public generally, and especially the scientist, engineers and practitioners in the art who are not familiar with patent or legal terms or phraseology, to determine quickly from a cursory inspection the nature and essence of the technical disclosure of the application.