US 10,974,087 B1
Strengthening apparatus and method of use
Mitch Moon, San Luis Obispo, CA (US); and Henry Moon, San Luis Obispo, CA (US)
Filed by Mitch Moon, San Luis Obispo, CA (US); and Henry Moon, San Luis Obispo, CA (US)
Filed on Oct. 21, 2020, as Appl. No. 17/76,761.
Claims priority of provisional application 63/003,465, filed on Apr. 1, 2020.
Int. Cl. A63B 21/00 (2006.01); A63B 21/055 (2006.01)
CPC A63B 21/00043 (2013.01) [A63B 21/0555 (2013.01); A63B 21/0557 (2013.01); A63B 21/4035 (2015.10)] 21 Claims
OG exemplary drawing
 
1. A strengthening apparatus, comprising:
a) a first elongate member and a second elongate member, wherein said first elongate member and said second elongate member are slidable relative to one another;
b) at least one resistance element adapted to provide resistance to a sliding movement of said first elongate member relative to said second elongate member; and
c) a limiting element adapted to limit said sliding movement;
wherein said at least one resistance element and said limiting element are arranged coaxially within said first elongate member and said second elongate member.