US 12,330,009 B2
Extendable fitness bar with internal resistance
Jack Westfall, Limestone, ME (US)
Filed by Jack Westfall, Limestone, ME (US)
Filed on Jul. 2, 2024, as Appl. No. 18/762,290.
Application 18/762,290 is a division of application No. 17/552,927, filed on Dec. 16, 2021, granted, now 12,053,661.
Prior Publication US 2024/0350851 A1, Oct. 24, 2024
Int. Cl. A63B 21/04 (2006.01); A63B 21/00 (2006.01); A63B 21/055 (2006.01)
CPC A63B 21/0428 (2013.01) [A63B 21/0557 (2013.01); A63B 21/4035 (2015.10)] 8 Claims
OG exemplary drawing
 
1. A method of using an extendable fitness bar, the method comprising:
(a) providing an extendable fitness bar, comprising:
a first external bar and a second external bar that are both hollow, each having a diameter substantially equal to one another, each external bar having a proximal and a distal end, the proximal ends of each external bar are an end of the first external bar and an end of the second external bar that are oriented closest to one another, while the distal ends of each external bar are an end of the first external bar and an end of the second external bar that are oriented furthest from one another, the proximal ends are positioned so that they are directly facing one another;
an internal bar being hollow and located on an interior of the first external bar and the second external bar;
an elastic member located in an interior of the internal bar, the elastic member having a first end that is attachable to the distal end of the first external bar and a second end that is attachable to the distal end of the second external bar, so that the elastic member produces resistance when the first external bar and the second external bar are moved away from one another, revealing the internal bar; and
a first hollow interlocking bar located at the proximal end of the first external bar, and a second hollow interlocking bar located at the proximal end of the second external bar, one of the interlocking bars having an indent and the other interlocking bar having a protrusion that fit into one another when the first and second external bars are pressed together, and a total diameter of a section of the interlocking bars having the indent and the protrusion is substantially similar to the diameter of the first and second external bars, the internal bar also located on an interior of the first hollow interlocking bar and the second hollow interlocking bar;
(b) grasping the first external bar with one hand, and grasping the second external bar with another hand and directing the first and the second external bars in opposing directions, creating distance between the first external bar and the second external bar, creating tension from the elastic member, and revealing the interior bar; or
(c) grasping the first external bar with one hand, and grasping the second external bar with another hand and twisting the first external bar clockwise and the second external bar counterclockwise.