Bizarre Patents
Cloaking System Using Optoelectronically Controlled Camouflage
A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.
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| Number | Title | Issue Date |
| 7131916 | Baseball swing trainer The present invention relates to a baseball swing trainer. In a first embodiment, a ball is pivotally attached to a vertical arm which is slidably attached to an oblique arm, the oblique arm is attached to a horizontal arm which is attached to a support structure; t... | 11/07/2006 |
| 6651497 | Pitching training tool with indicator The present invention provides a pitching training tool, comprising a rod-shaped body portion, which has a hollow, cylindrical shaft portion that is lighter than a regulation ball, and a gripping portion, which is integrally formed to one end of this shaf... | 11/25/2003 |
| 6638186 | Hockey skill improvement system having physiological memory training A hockey practice device which provides physiological memory training to the user includes a low, short open bottom housing having a variable resistance striker puck which slides in a slot in the top of the housing, the puck being secured to a slider bene... | 10/28/2003 |
| 5386997 | Portable golf practice apparatus A golf practice apparatus includes an upper platform having a tee and a target located forwardly of the tee; a golf ball arranged at the tee above the platform for striking towards the target area, the golf ball having one end of a tether attached thereto... | 02/07/1995 |
| 4609197 | Golf practice device The improved golf practice device disclosed herein is designed to permit golfers to practice their golf swings in a relative restricted area and to give them an indication, the power of their swings, by means of an impact measuring device attached and sec... | 09/02/1986 |
| 4261564 | Practice apparatus for punting, passing or kicking a ball Practice apparatus for use in measuring azimuth angle, equivalent distance and angle of elevation of a ball that is punted, passed or kicked comprises a base including means for securing the device in fixed position on the ground or other surface. A tethe... | 04/14/1981 |
| 4119318 | Golf ball flight indicating device A golf swing training device comprises a slide guide track and a slide mounted slidably along the track. The slide carries a friction engagement means which grip a portion of the slide guide track therebetween, to provide frictional resistance to the slid... | 10/10/1978 |
| 4118032 | Golf practice device An improved portable golf practice device includes a base with a pivotably attached arm. A freely slidable distance indicator and a spring biased slidable yoke are mounted on the arm. The yoke is mounted for pushing the indicator away from the point at wh... | 10/03/1978 |
| 4070017 | Hockey practice shooter This invention relates to a device which may be conveniently installed in a desired location on a flat surface to permit practice shooting of a hockey puck in rapid succession to develop technique, coordination and strength. In an alternate embodiment, th... | 01/24/1978 |
| 3955815 | Hockey training device A hockey training device having a simulated puck, adapted to be propelled by a hockey stick over a playing surface. The puck is connected to to a resilient member which restrain the latter's motion over the playing surface. The puck is connected, through ... | 05/11/1976 |
