Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7846045 | Pneumatic practice tee A pneumatic practice tee and method of practicing the striking of a sports ball with a striking instrument using the tee. The tee includes a base, a housing, a fan and an inflatable sleeve. The base supports the practice tee upon a horizontal surface. The housing is... | 12/07/2010 |
| 7294071 | Method and device to train a baseball swing This device will train an individual to strike a baseball. It is used for beginners as well as some of the advanced players by allowing the ball to be forced into different directions to simulate various pitching maneuvers. ... | 11/13/2007 |
| 7264176 | Laminar water jet with pliant member An apparatus having a housing with a water channel, for instance a laminar water flow, flowing there through. A pliant member is provided together with an at least one water input, an at least one filter member and an at least one jetting element. The pliant member ... | 09/04/2007 |
| 7214147 | Batting training apparatus A practice batting training apparatus is disclosed, which can accurately and consistently deliver balls to a desired location at a desired speed. The apparatus includes a base with a removable a post, and at least one feeder hingedly attached to the post for deliver... | 05/08/2007 |
| 7198579 | Ball hitting practice apparatus A ball hitting practice apparatus for use by a hitter is provided. The ball hitting practice apparatus includes a substantially rigid member having a first end and a second end, a hinge capable of suspension from a frame and attached near the first end of the rigid ... | 04/03/2007 |
| 7186193 | Exercise training apparatus for tennis players A tennis ball holding apparatus includes a central tubular shaft that has a bore formed therein and has apertures formed along a length thereof. A base has legs radially extending outward from a central shaft bottom end and is monolithically formed with the central ... | 03/06/2007 |
| 7125349 | Shotgun hiker The invention is of a Shotgun hiker, a mechanical football hiker that propels the football five yards in a consistent direction and manner in order to allow football teams to practice the shotgun offense without the use of a trained team member to hike the football.... | 10/24/2006 |
| 7115052 | Methods and devices for sport ball training Sport ball training devices and methods for releasably holding a tennis ball or other sport ball at an appropriate height for the practice of striking the ball, either directly or indirectly with a racket or the like. An embodiment may have a support device with a b... | 10/03/2006 |
| 6978974 | Collapsible pinata support assembly A collapsible piñata support assembly includes a base that has a top wall having has a fill opening extending therethrough. A sleeve is mounted in the top wall. A telescoping pole has a top end and a bottom end that is removably extendable into the sleeve. An arm h... | 12/27/2005 |
| 6955615 | Pitcher screen A pitcher's screen comprising a lower screen having opposite ends and a base secured to the lower screen. An upper screen is pivotally connected to the lower screen midway between the ends. The upper screen is movable in relation to the lower screen adjacent one of ... | 10/18/2005 |
| 6685146 | Pinata-manipulating stand A pinata-manipulating stand for more easily maneuvering and controlling a pinata. The pinata-manipulating stand includes an arm assembly for supporting and controlling a pinata. An upright support member is provided for supporting the arm assembly. A coup... | 02/03/2004 |
| 6412736 | Collapsible pinata hoist A collapsible pinata hoist to eliminate the need for finding a large tree or other pinata rope support structure when it is desired to have a pinata at a gathering such as a birthday party or other celebration. The collapsible pinata hoist includes a V-sh... | 07/02/2002 |
| 5842938 | Swing training assembly A number of swing training assemblies are disclosed. One of the assemblies is for use in a gymnasium and includes a main support member or rope which extends between the two basketball rims and is detachably interconnected therewith. A plurality of ball s... | 12/01/1998 |
| 5660395 | Hand-held volleyball spiking trainer device A volleyball spiking practice device positions a volleyball at a desired elevation above a surface. The device comprises a generally C-shaped head and a support pole attached to the head. The head sufficiently retains a volleyball to be knocked free. The ... | 08/26/1997 |
| 5540430 | Batting practice stand A portable base ball batting practice stand including a base having a post connected thereto and extending upwardly therefrom. A generally horizontal extension is connected to the post and extends outwardly therefrom. A ball is suspended by a line from th... | 07/30/1996 |
| 5403018 | Water toy A water toy includes a basket for receiving a ball therein, and a water mechanism for ejecting the ball from the basket. The water mechanism is operative in a first position for emitting a fine spray of water, and in a second position for emitting an upwa... | 04/04/1995 |
| 5374056 | Baseball practice device A baseball practice device in which a baseball is releasably attached to a "Y" shaped tether system which, in turn, is supported by two horizontal arms arranged in a "Y" shaped configuration. The combination of the horizontal arms and the tether system al... | 12/20/1994 |
| 5282615 | Tethered-ball, hitting practice apparatus A new and improved tethered-ball, hitting practice apparatus is disclosed that includes a base member, a vertical support member connected to and supported by the base member, a tether-assembly-retaining member connected to and supported by the vertical s... | 02/01/1994 |
| 5011144 | Ball practice tee The invention is directed to a ball support practice tee whereby a ball is suspended on a column of air. The apparatus involves a housing having an annular cone shaped nozzle extending upwardly therefrom. Within the nozzle is placed a blind core which pre... | 04/30/1991 |
| 4946164 | Suspended ball water toy The present invention comprises a base coupled to a water source, the base outputting a stream of water for supporting a toy ball in mid air. The base includes filtering device for substantially eliminating turbulence from the water stream so that it is s... | 08/07/1990 |
| 4865319 | Tennis training device A tennis training apparatus having a vertical tubular support stand support by a base. A horizontal tubular member is attached at one of its ends to the top end of the vertical support stand. A rotatable support head is attached to the other or outer end ... | 09/12/1989 |
| 4858921 | Ball suspending apparatus and method Disclosed is an improved ball suspending apparatus which utilizes a dual directional component air stream to support the ball for striking. The dual directional component air stream allows the ball to be spun according to the desire of the operator. For e... | 08/22/1989 |
| 4575080 | Air suspension batting tee apparatus An air suspension batting tee apparatus which includes an air blower for providing a moving air column which supports a spherical object, a conduit terminating at a nozzle for directing the air column, and an oscillator for producing a fluctuation in the ... | 03/11/1986 |
| 4564195 | Tennis ball support device A tennis ball support device is disclosed which is adapted to hold a tennis ball in mid-air without any contact thereof by the blowing of air from underneath. This device includes a housing having side walls being generally cylindrical and a top and botto... | 01/14/1986 |
| 4438927 | Baseball game A baseball game includes a horizontal platform with a simulated baseball field on the top surface thereof. A baseball is carried at the top end of a rod, the bottom end of which is spring mounted to the board adjacent home plate. The ball and rod are held... | 03/27/1984 |
| 4269410 | Tennis training device The specification discloses a training device (10) for the game of tennis which is adapted to be mounted on a stand (12). The training device (10) comprises a frame (22) which is supported on the stand (12) with a top block (30) and a line and pulley arra... | 05/26/1981 |
| 4191372 | Tennis trainer device A tennis training device for releasably holding a tennis ball at any height appropriate for the practice of serves and ground strokes is disclosed. The apparatus comprises a base and standard for the support of a cross arm from which depends a cord attach... | 03/04/1980 |
| 4040229 | Method of making a package construction for baseball type playing components A method of making a package construction for baseball type playing components is provided which comprises a ball tee member and ball bat telescoped within the tee member and may include one or more balls.... | 08/09/1977 |
| 3999753 | Ball striking practice device with ball dispensing apparatus A tennis ball dispensing device for practicing tennis strokes that includes an inclined tubular chute for retaining and delivering balls to a flexible sock having an opening therein for permitting release of a ball therethrough, the sock being suspended f... | 12/28/1976 |
| 3952477 | Method of making a package construction for baseball type playing components A method of making a package construction for baseball type playing components is provided which comprises a ball tee member and ball bat telescoped within the tee member and may include one or more balls.... | 04/27/1976 |
| 3940132 | Tennis service instructional device In order to aid in the instructions of the service stroke in tennis, a tennis ball is releasably held by suction at the mouth of a suspended supple hose at the proper height to be stroked by a tennis racquet as in serving. The ball is easily released from... | 02/24/1976 |
