Class / Patent application number | Description | Number of patent applications / Date published |
473519000 | With user shiftable, adjustable, or interchangeable weight for use during play or with freely shiftable mass for increasing impact force | 13 |
20100087281 | Adjustable weighted field hockey stick - A weighting system for a sports stick, particularly a field hockey stick, comprising a surface, recess, channel, hole or plurality of pockets formed along the length of the sports stick, and one or more weights moveably or selectively attachable along the surface and/or within the channel/pockets to allow a player to freely adjust the weight and balance point of the stick by slideably moving to or selectively adding or eliminating weight and points along the stick. A variety of embodiments are herein described, all providing an adjustable field hockey stick that allows players to adapt to play on different surfaces or in different conditions. | 04-08-2010 |
20110269581 | WEIGHT ADJUSTABLE BAT - A bat made of metal material includes an opening defined in a distal end of the barrel and an inner threaded portion is defined in the opening so as to receive a cap which is threadedly connected to the inner threaded portion and includes a weight such that the users can replace different caps to adjust the weight center of the bat as needed. The cap can be easily replaced by using a securing tool which includes insertion portions to be engaged with axial recesses in the cap. | 11-03-2011 |
20110287875 | BALL BAT HAVING PERFORMANCE ADJUSTING ANNULAR MEMBER - A ball bat including a bat frame and a performance adjusting annular member positioned within the barrel portion. The bat frame has a handle portion and a barrel portion. The annular member has an outer diameter, a weight within the range of 0.4 to 1.85 ounces and a radial cross-sectional area. The radial cross sectional area has a maximum height and a maximum width. The maximum height over the maximum width defines a first aspect ratio. The outer diameter over the maximum width defines a second aspect ratio. The first aspect ratio is at least 0.5 and the second aspect ratio is greater than 1.5. The annular member has at least first and second annular portions. The first annular portion extends over no more than 50 percent of the width of the body and includes over sixty percent of the mass of the body. | 11-24-2011 |
20120214624 | Racket and a Process that Allows the Entire Length of the Racket Handle Accessible to Receive Insertable and Removable Cartridge Carriers of Various Weights for Play Testing and Racket Customization - Rackets and a process that allows up to the entire length of a racket handle to receive various weight carriers enabling for selective control of overall weight, distribution of weight, balance point, swing weight, racket customization, and equalization between rackets are disclosed. | 08-23-2012 |
20120252609 | Racquet Weight - A weight for a racquet includes a weight. The weight is joined at least partially to a joining portion of the racquet. A joining mechanism is also included. The joining mechanism is configured to join the weight at least partially to the joining portion of the racquet. | 10-04-2012 |
20120289366 | Racquet Weight Kit - A racquet weight kit comprised of a plurality of weighted clips and counterweights for removable attachment to a racquet frame and handle, respectively, to enable a user to experiment with different weights and/or different weight distributions on an existing racquet. Once the weight and weight distribution has been optimized to suit the user, the weighted clips and counterweight clips can be replaced with weighted tape to more permanently customize the racquet to the user's physical characteristics, mechanics and swing. | 11-15-2012 |
20120289367 | WEIGHT CHANGEABLE RACKET - A racket capable of being changed in its weight includes handle, a main body, at least one nut embedded in the main body, and at least one bolt threadedly engaged with the nut. The main body has a frame and a connection portion connected between the frame and the handle. Because bolts having different weights can be selectively used to be threaded into the nuts, the user can adjust the overall weight of the racket according to his/her need so as to have a suitable racket. | 11-15-2012 |
20130316858 | WEIGHTING DEVICE AND RACKET EQUIPPED WITH THE SAME - A weighting device for use with a racket includes at least one frame strip, at least one weight, and at least one screw. The frame strip is adapted for being mounted on an outer circumference of a racket frame and has a dovetail groove extending along a longitudinal direction thereof, and a plurality of through holes provided at a bottom wall of the dovetail groove. The weight has a threaded through hole and is slidably engaged in the dovetail groove. The screw is threadedly engaged with the threaded through hole of the weight and provided with an end stoppable against the bottom wall of the dovetail groove for holding the weight stationarily. Therefore, the weight can be firmly positioned and the balance of a racket using the weighting device can be quickly adjusted by adjusting the position of the weight. | 11-28-2013 |
20140274493 | Adjustable Moment of Inertia Bat - An adjustable moment of inertia ball bat has a hollow outer ball bat shell defining an interior cavity having an open distal end. A central shaft is disposed in the interior cavity and a weight is disposed on the central shaft. The central shaft passes through and operatively engages the weight. An interior support secures an inner end of the central shaft and a bat end cap is adapted to be fitted into the open distal end of the ball bat shell. The weight moves in the ball bat shell on the central shaft to operatively adjust a moment of inertia of the ball bat. | 09-18-2014 |
20140296005 | RACKET FRAME - In a racket frame | 10-02-2014 |
20140342853 | BAT CUSTOMIZATION SYSTEM - An apparatus for engagement with a barrel of a bat includes a cup and at least one cover. The cup is secured for securement to a distal end of the barrel of the bat. The cup defines a cavity and includes a first connector portion. The at least one cover has a second connector portion cooperating with the first connector portion to releasably secure the cover to the cup over the cavity. | 11-20-2014 |
20140342854 | BAT CUSTOMIZATION SYSTEM - An apparatus for releasable attachment to a handle of a ball bat includes a base fixedly coupled to a proximal end of the handle of the bat, and at least one knob releasably coupled to the base. The base includes knob-engaging structure. The knob includes base-engaging structure to cooperate with the knob engaging structure to inhibit rotation of the knob with respect to the longitudinal axis of the bat. | 11-20-2014 |
20160101335 | Weighted Table Tennis Training System - A Table Tennis weighted training system consisting of a weighted clip. The weighted stainless steel clips adds, when clipped on properly, weight to the table tennis paddle. This allows the table tennis player to strengthen his/her table tennis skills and muscles with the weighted training system. | 04-14-2016 |