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Variable weight playball
   
Document Number
US Patent 5462273
Issued Date
October 31, 1995
Link
Inventors
[*] (Notice:The portion of the term of this patent subsequent to August 9, 2011 has been disclaimed.)
Map
Abstract
A variable-weight playball whose outer casing is formed of liquid-impervious, flexible material, having a closable port therein. Confined within the casing is a compressible body having the same configuration which depends on whether the ball is spherical or in some other shape. The body is formed of low-density, open-cell, flexible foam plastic material having sponge-like properties. To impart heft to the ball, water is introduced through the port into the body and absorbed thereby, the port then being closed to retain the water. To thereafter lighten the ball, the port is opened and the ball is squeezed to discharge water through the port until the ball has the desired reduced weight, after which the port is closed. The casing may be contoured, printed or otherwise arranged so that the ball simulates the head of a humanoid or animal-like character having a mouth. The port of the casing is integrated with the mouth of the character so that when water is added to the ball, it is seemingly introduced through the mouth.
Drawing
Variable weight playball - US Patent 5462273 Drawing
Drawing from US Patent 5462273
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Number of Claims:
9
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Owner
Published
October 31, 1995
Application Number
08/281,937
Filed
July 28, 1994
US Classification
473/594   273/DIG.20 273/DIG.8
Int'l Classification
A63B   41/00   (20060101)   A63B   41/02   (20060101)   A63B   43/00   (20060101)  
Attorney/Law Firm
Parent Case
RELATED APPLICATION This application is a continuation-in-part of my application Ser. No. 743,279, filed Aug. 9, 1991, having same title, which application Ser. No. 743,2479 (now U.S. Pat. No. 5,335,907) is a continuation-in-part of application Ser. No. 345,405, filed May 1, 1989 (now U.S. Pat. No. 5,138,721) which in turn is a continuation-in-part of Ser. No. 205,477, filed Jun. 13, 1988 (now U.S. Pat. No. 4,834,382).
USPTO Field of Search
273/58R   273/58B   273/58BA   273/58H   273/58J   273/58A   273/DIG.8   273/DIG.20   273/26B   273/72R   273/67R  
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Claims
Description
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