User-assembled free weights

Abstract

A user-assembled free weight includes a container made of a contiguous material and having at least one cavity. A heavy curable fill material is placed inside the at least one cavity. Together the heavy curable fill material and the container produce at least a target weight and the heavy curable fill material is non-removable from the container.

What is claimed is: 
     
         1 . A user-assembled free weight comprising:
 a container made of a contiguous material and having at least one cavity; and   a heavy curable fill material placed inside the container including inside the at least one cavity; and   wherein together the heavy curable fill material and the container produce at least a target weight and the heavy curable fill material is non-removable from the container.   
     
     
         2 . The user-assembled free weight of  claim 1 , wherein the container further comprises a hollow handle coupled to the at least one cavity and made of the contiguous material, wherein the user-assembled free weight comprises a kettlebell where the at least one cavity includes a single cavity and the hollow handle is located above the single cavity. 
     
     
         3 . The user-assembled free weight of  claim 2 , where the container further comprises a hollow first flared portion that couples a first end of the hollow handle to the single cavity and a hollow second flared portion that couples a second end of the hollow handle to the single cavity, wherein a first open area located at an intersection between the single cavity and the first hollow flared portion is greater than a second open area located at the first end of the hollow handle and wherein a third open area located at an intersection between the single cavity and the second hollow flared portion is greater than a fourth open area located at the second end of the hollow handle. 
     
     
         4 . The user-assembled free weight of  claim 1 , wherein the container further comprises a hollow handle coupled to the at least one cavity and made of the contiguous material, wherein the user-assembled free weight comprises a dumbbell where the at least one cavity includes a first cavity separated from a second cavity and the hollow handle couples the first cavity to the second cavity. 
     
     
         5 . The user-assembled free weight of  claim 4 , wherein the container further comprises a first hollow flared portion that couples a first end of the hollow handle to the first cavity and a second hollow flared portion that couples a second end of the hollow handle to the second cavity, wherein a first open area located at an intersection between the first cavity and the first hollow flared portion is greater than a second open area located at the first end of the hollow handle and wherein a third open area located at an intersection between the second cavity and the second hollow flared portion is greater than a fourth open area located at the second end of the hollow handle. 
     
     
         6 . The user-assembled free weight of  claim 1 , wherein the container further comprises a hollow handle coupled to the at least one cavity and made of the contiguous material, wherein the user-assembled free weight comprises a dumbbell where the at least one cavity includes a single cavity that includes cavity walls that define an access slot that extends from a first side to an opposing second side of the container, the access slot being defined by a plurality of slot walls that also define the cavity walls, wherein the hollow handle is interposed between a first slot wall and an opposing second slot wall. 
     
     
         7 . The user-assembled free weight of  claim 6 , where the container further comprises a hollow first flared portion that couples a first end of the hollow handle to the single cavity at the first slot wall and a second hollow flared portion that couples a second end of the hollow handle to the single cavity at the second slot wall, wherein a first open area located at an intersection wen the first slot wall of the single cavity is greater than a second open area located at the first end of the hollow handle and wherein a third open area located at an intersection between the second slot wall of the single cavity and the second hollow flared portion is greater than a fourth open area located at the second end of the hollow handle. 
     
     
         8 . The user-assembled free weight of  claim 1 , wherein the container comprises an end having an opening surrounded by a lip, the opening being configured to receive the heavy curable fill material to be located inside the container. 
     
     
         9 . The user-assembled free weight of  claim 4 , wherein an outer surface of the hollow handle includes a contiguous grip texture. 
     
     
         10 . A user-assembled free weight comprising:
 a container having at least one cavity coupled to a hollow handle, wherein the at least one cavity and the hollow handle are made of a contiguous material and the at least one cavity includes an opening; and   a heavy fill material placed inside the container through the opening in the at least one cavity, passes e through the at least one cavity, fills the hollow handle and fills the at least one cavity;   wherein the container includes a first hollow flared portion that couples a first end of the hollow handle to the at least one cavity, the first hollow flared portion having a first open area located at an intersection of the at least one cavity and the first hollow flared portion and is greater than a second open area located at the first end of the hollow handle.   
     
     
         11 . The user-assembled free weight of  claim 10 , wherein the container further comprises a second hollow flared portion that couples a second end of the hollow handle to the at least one cavity, the second hollow flared portion having a third open area located at an intersection between the at least one cavity and the second hollow flared portion is greater than a fourth open area located at the second end of the hollow handle. 
     
     
         12 . The user-assembled free weight of  claim 11 , wherein the user-assembled free weight comprises a kettlebell where the at least one cavity includes a single cavity and the first flared portion couples the single cavity to the first end of the hollow handle and the second flared portion couples the single cavity to the second end of the hollow handle, wherein the hollow handle is spaced above the single cavity. 
     
     
         13 . The user assembled free weight of  claim 12 , wherein the container further comprises an opening in a bottom end of the single cavity configured to receive the heavy fill. 
     
     
         14 . The user-assembled free weight of  claim 11 , wherein the user-assembled free weight comprises a dumbbell where the at least one cavity includes a first cavity and a second cavity and the first hollow flared portion couples the first cavity to the first end of the hollow handle and the second hollow flared portion couples the second cavity to the second end of the hollow handle, wherein the hollow handle is interposed between and couples the first cavity to the second cavity. 
     
     
         15 . The user-assembled free weight of  claim 14 , wherein the container further comprises an opening in an end of the first cavity configured to receive the heavy fill. 
     
     
         16 . The user-assembled free weight of  claim 11 , wherein the user-assembled free weight comprises a dumbbell where the at least one cavity includes a single cavity and the first hollow flared portion couples the single cavity to the first end of the hollow handle and the second hollow flared portion couples the single cavity to the second end of the hollow handle, wherein the hollow handle is interposed between a first slot wall and a second slot wall of the container. 
     
     
         17 . The user-assembled free weight of  claim 16 , wherein the container further comprises an opening in an end of the single cavity configured to receive the heavy fill. 
     
     
         18 . A method of assembling a free weight, the method comprising:
 obtaining a container made of a contiguous material and including at least one cavity; and   pouring a heavy curable fill material through an opening in the container so that the heavy curable fill material is located inside an entirety of the at least one cavity;   waiting for the heavy curable fill material to cure inside the container and become non-removable from the container.   
     
     
         19 . The method of  claim 18 , wherein the container further includes a hollow handle coupled to the at least one cavity and made of the contiguous material. 
     
     
         20 . The method of  claim 19 , further comprising inserting at least one rebar core inside the container so that it extends in the at least one cavity and through the hollow handle.