Adjustable barbell device

Abstract

A device for weightlifting and bodybuilding that comprises a housing that has and cap on one end that allows the device to be placed onto a typical barbell bar, such as the bars used in plate-loading barbell sets. Small, incremental weights may be easily added or removed from the hollow internal section of the device by removing a lid. An end of a barbell can be fit through the center of a device to secure the device on each end of a bar, or an alternative configuration provides a clamp that attaches a device to an end of a bar.

1 . A device for bodybuilding and weightlifting, comprising: 
 a housing with an open end, a closed end, and a hollow interior;    a lid that removably attaches to the open end of the housing, that provides exterior access to the hollow interior of the housing for placing and removing discrete weights into the housing,    wherein the housing forms an opening through the housing that can receive a bar from a weight lifting device.    
   
   
       2 . The device of  claim 1 , further comprising: 
 a tube comprising one end attached to the closed end of the housing, providing the opening along an axis of the device,    wherein the lid removably attaches to the second end of the tube.    
   
   
       3 . The device of  claim 2 , wherein the tube is formed inside the housing to create a space between the outer wall of the tube and the inner wall of the housing into which the discrete weights can be placed.  
   
   
       4 . The device of  claim 1 , wherein the housing and the lid are formed from one of metal, plastic, and resin.  
   
   
       5 . The device of  claim 1 , wherein the lid attaches to the housing to contain a plurality of discrete weights placed into the housing.  
   
   
       6 . The device of  claim 1 , wherein the housing is cylindrically formed, the lid is formed with an outer diameter approximate to the outer diameter of the cylindrical housing, and the opening is formed by the housing through the longitudinal axis of the housing, and 
 an opening is centrally formed in the lid with a diameter approximate to the diameter of the opening.    
   
   
       7 . The device of  claim 6 , further comprising: 
 a plurality of concentric rings that comprise inner diameters to fit around the tube and comprise outer diameters less than the inner diameter of the cylindrical housing,    wherein each ring is a weight that can be enclosed within the housing when the lid is attached to the open end of the device.    
   
   
       8 . A device for bodybuilding and weightlifting, comprising: 
 a housing with an open end, a closed end, and a hollow interior;    a lid that removably attaches to the open end of the housing, that provides exterior access to the hollow interior of the housing for placing and removing discrete weights into the housing,    wherein the housing is hollow and can contain discrete weights to increase the weight of device incrementally; and    a clamp, attached to the closed end, that removably attaches to a bar from a weight lifting device without allowing the bar to pass through the housing.    
   
   
       9 . The device of  claim 8 , wherein the lid removably attaches to the open end of the housing.  
   
   
       10 . The device of  claim 9 , wherein the diameter of the housing is larger than the inner diameter of the clamp.  
   
   
       11 . The device of  claim 8 , wherein the housing and the lid are formed from one of metal, plastic, and resin.  
   
   
       12 . The device of  claim 8 , wherein the lid attaches to the housing to contain a plurality of discrete weights placed into the housing.  
   
   
       13 . The device of  claim 8 , wherein the housing is cylindrically formed, the lid is formed with an outer diameter approximate to the outer diameter of the cylindrical housing, and the clamp attaches the device to a bar of a weight training device.