The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 2021
Filed:
Oct. 12, 2018
Applicant:
Mikasa Corporation, Hiroshima, JP;
Inventors:
Assignee:
MIKASA CORPORATION, Hiroshima, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 41/08 (2006.01); A63B 45/00 (2006.01); A63B 41/10 (2006.01); B29D 22/04 (2006.01);
U.S. Cl.
CPC ...
A63B 45/00 (2013.01); A63B 41/08 (2013.01); A63B 41/10 (2013.01); A63B 2243/0037 (2013.01); A63B 2243/0095 (2013.01); B29D 22/04 (2013.01);
Abstract
Provided is a method for manufacturing an exercise ball which is made by using a pasted ball such as a soft leather ball and which has a lower impact value compared to a conventional yarn-wound ball. The exercise ball comprises a spherical hollow rubber bladder () in which compressed air is sealed, and a yarn-wound reinforcement layer () formed by evenly winding a filament yarn around the surface of the rubber bladder, wherein the exercise ball is characterized in that nylon filament yarn, obtained by hard twisting two 30-50 denier nylon filaments--in a single-direction twist is used as a winding yarn ().