Jose L Calderon

Address:

2762 SW 21 St, Miami, FL 33145

Phone:

(305)4421359

VIN:

1N4AL21E57C156826

Make:

NISSAN

Model:

ALTIMA

Year:

2007

US Patent:

7435195, Oct 14, 2008

Filed:

Jul 13, 2007

Appl. No.:

11/777332

Inventors:

Jose Luis Calderon - Queens NY, US

Assignee:

Tennis Muscle Memory International, Inc. - New York NY

International Classification:

A63B 69/38

US Classification:

473459

Abstract:

An apparatus and method for the training of tennis strokes are provided that allow the user to develop spin and consistency in each stroke. The stroke training apparatus consists of a ball; a housing member comprising a first side, wherein the first side comprises a planar area and an opening that is circumscribed by the planar area; and an attachment means for attaching the ball to the housing member, wherein the ball can rotate around an axis and a non-zero volume less than or equal to one-half of the total volume of the ball protrudes through the opening on the first side. The method comprises contacting a racquet to the stroke training apparatus, guiding the racquet along the lower planar area, guiding the racquet along the surface of the ball after guiding the racquet along the lower planar area; and guiding the racquet along the upper planar area after guiding the racquet along the surface of the ball.

US Patent:

51774976, Jan 5, 1993

Filed:

Apr 17, 1991

Appl. No.:

7/686761

Inventors:

Jose L. Calderon - Arleta CA
Patrick Nguyen - Walnut CA
John M. Bertalan - Tustin CA

Assignee:

Calcomp Inc. - Buena Park CA

International Classification:

G01D 1528
B65H 2900

US Classification:

346 11

Abstract:

This is an apparatus and associated method for rolling large pieces of a flexible media such as completed plots produced by a plotting pen plotter. The rolling mechanism is placed adjacent an exit of the pen plotter to received ejected media pieces therein. Upon detecting the leading edge of a media piece while in an open position, the mechanism closes to form a guide slot to a cylindrical rolling chamber. The media piece is then urged along the guide slot and into the rolling chamber where it is rolled by a drive roller. Upon detecting the trailing edge of the media piece, the mechanism opens allowing the rolled media piece to fall into a receiving bin. The stationary portion and the rotating portion are formed of a plurality of slats having low contact area edges disposed for media pieces to move along whereby the media pieces move along a low friction path.