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US3584614A
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*
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1968-12-04 |
1971-06-15 |
Tibor Horvath |
Automatic ball thrower
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US3930486A
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*
|
1972-09-28 |
1976-01-06 |
Kahelin Edward W |
Convertible baseball and tennis practice machine
|
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US3905349A
(en)
*
|
1972-12-07 |
1975-09-16 |
John Nielsen |
Induced air device for discharging spherical members
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US3855988A
(en)
*
|
1973-04-13 |
1974-12-24 |
Prince Mfg Inc |
Ball throwing machine
|
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US3948512A
(en)
*
|
1974-12-04 |
1976-04-06 |
Tennis In The Round, Inc. |
Recreational facility
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US4027646A
(en)
*
|
1976-06-08 |
1977-06-07 |
Prince Manufacturing, Inc. |
Propulsion device for tennis balls and like spherical objects
|
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US4074905A
(en)
*
|
1976-07-15 |
1978-02-21 |
Thaine High |
Baseball batting cages
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|
US4094294A
(en)
*
|
1977-01-31 |
1978-06-13 |
Richard Speer |
Ball projecting device
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US4212284A
(en)
*
|
1978-04-06 |
1980-07-15 |
Richard Speer |
Pneumatically-operated ball projecting device
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JPS5552775A
(en)
*
|
1978-10-14 |
1980-04-17 |
Gorou Ehama |
Changed ball preparing device
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US4256304A
(en)
*
|
1979-11-27 |
1981-03-17 |
Athletic Training Equipment Company |
Baseball
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US4442823A
(en)
*
|
1982-03-08 |
1984-04-17 |
Johnnie E. Floyd |
Ball throwing machine and system having three individually controllable wheel speeds and angles
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(en)
*
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1983-08-18 |
1985-03-05 |
Stokes Gilbert A |
Ball feeder for throwing machine
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AU572584B2
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*
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1983-11-08 |
1988-05-12 |
Marocco, C.C.A. |
Table tennis practice aid
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SU1362490A1
(ru)
*
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1984-09-28 |
1987-12-30 |
Сумский филиал Харьковского политехнического института им.В.И.Ленина |
Теннисна пушка
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JPH0522215Y2
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*
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1987-09-22 |
1993-06-07 |
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*
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1988-07-21 |
1990-04-10 |
Bear Robert A |
Player adaptive sports training system
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*
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1988-09-29 |
1991-10-15 |
Master Pitching Machine, Inc. |
Ball return conveyor system for baseball pitching machine cages
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US5133330A
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*
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1991-07-03 |
1992-07-28 |
Sharp John C |
Relief pitcher
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US5257615A
(en)
*
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1992-05-12 |
1993-11-02 |
Jones J David |
Baseball, softball and tennis training device
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US5507271A
(en)
*
|
1993-06-16 |
1996-04-16 |
Actor; James M. |
Air-actuated ball-throwing device and method therefor
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US5566934A
(en)
*
|
1994-06-17 |
1996-10-22 |
Stringliner Company |
Baseball trainer
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AU3138795A
(en)
*
|
1994-07-21 |
1996-02-22 |
Ross D Beers |
Professional batting training system
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US5464208A
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*
|
1994-10-03 |
1995-11-07 |
Wnan, Inc. |
Programmable baseball pitching apparatus
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US5549302A
(en)
*
|
1995-06-16 |
1996-08-27 |
Lapsker; Irving |
Athletic projectile and target training device
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US5658211A
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*
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1995-09-29 |
1997-08-19 |
Glover; Clinton G. |
Interactive ball throwing game
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US5746670A
(en)
*
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1996-10-23 |
1998-05-05 |
Brady; Steven Garvin |
Batting swing training device
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*
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1997-02-24 |
1998-06-30 |
Rogers; Harold W. |
Ball pitching machine
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US5906553A
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*
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1997-08-05 |
1999-05-25 |
Carroccio; Tony |
Outdoor practice facility
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US5887578A
(en)
*
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1997-08-25 |
1999-03-30 |
Backeris; Dean A. |
Ball projecting attachment for various air blowers
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US6202636B1
(en)
*
|
1999-01-06 |
2001-03-20 |
The Lobit Partnership |
Pitching machine
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US6612942B1
(en)
*
|
2000-04-04 |
2003-09-02 |
Probatter Sports, Llc |
Ball for pitching machine
|
