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. 13, 2021
Filed:
Aug. 14, 2018
Applicant:
Volvik Inc., Chungcheongbuk-do, KR;
Inventors:
In Hong Hwang, Namyangju-si, KR;
Kyung Ahn Moon, Seoul, KR;
Assignee:
VOLVIK INC., Chungcheongbuk-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B 37/12 (2006.01); A63B 37/14 (2006.01); A63B 37/00 (2006.01); A63B 45/00 (2006.01);
U.S. Cl.
CPC ...
A63B 37/0006 (2013.01); A63B 37/002 (2013.01); A63B 37/0018 (2013.01); A63B 45/00 (2013.01); A63B 37/0009 (2013.01);
Abstract
A surface of a sphere is divided by using not only great circles but also small circles, forming a spherical polyhedron. The spherical polyhedron includes two spherical regular pentagons, each having a center at the pole, ten spherical isosceles triangles near the pole, ten spherical pentagons near the equator, and ten other spherical isosceles triangles near the equator. Compared to a related art, dimples are accurately arranged in spherical polygons. Thus, a dimple area ratio is improved and the number of dimples is appropriately maintained.