Novel design for ergonomic hand grip that can be used for writing instruments

Abstract

This invention is an improvement in hand held devices used for marking, pointing, or touching. The improvement is comprised of a novel grip for the purpose of comfort. The grip incorporates novel materials and novel shape to accomplish said purpose. This invention is also comprised of a barrel that is able to accept a mechanism for intended use, marking, pointing, or touching, while also being able to be attached to the said grip in a manner that is able to accomplish said purpose

1 . A device with a grip for a purpose comprising: a cylindrical shape having a plurality of radial and longitudinal indentations or protrusions. 
   
   
       2 . The device of  claim 1 , wherein said purpose is for comfort. 
   
   
       3 . The device of  claim 1 , wherein said Indentations or protrusions have a difference in their height as measured from axial center. 
   
   
       4  The device of  claim 3 , wherein said indentations and protrusions cover an area in size that is adequate to interact with all parts of the hand that are involved in grasping said grip. 
   
   
       5 . The device of  claim 4 , wherein the size of said indentations and protrusions is optimized to interact with the bones of the hands and fingers through interference, similar to the action that teeth of opposing gears undergo. 
   
   
       6 . The device of  claim 4 , wherein the size of said indentations or protrusions is optimized to allow the continued flow of blood in tissues and the relief of pressure on nerves. 
   
   
       7 . The device of  claim 5 , wherein the size of indentations and protrusions relative to the distance from axial center is 0.001 to 0.3 inches. 
   
   
       8 . The device of  claim 6 , wherein the size of indentations and protrusions relative to the distance from axial center is 0.001 to 0.3 inches. 
   
   
       9 . The device of  claim 1 , wherein said grip is comprised of a material. 
   
   
       10 . The device of  claim 9 , wherein material has sufficiently low durometer to provide relief of high pressure points on tissues of the hand whole holding said grip. 
   
   
       11 . The device of  claim 9 , wherein said material has a high coefficient of friction to aid in the reduction of tension needed by the hand to grasp said grip. 
   
   
       12 . The device of  claim 10  &  11 , where in said material may consist of substances known as thermoplastic elastomers. 
   
   
       13 . The device of  claim 12  wherein said material may consist of a single thermoplastic elastomer or a combination of different thermoplastic elastomers to attain the best characteristics for said purpose of  claim 2 . 
   
   
       14 . The device of  claim 13 , wherein said material may be a combination of thermoplastic elastomers CL40 and CL2003 as manufactured by GLS corporation. 
   
   
       15 . The device of  claim 14 , wherein said material may be a mix of 60% CL40 and 40% CL2003 as manufactured by GLS Corporation. 
   
   
       16 . The device of  claim 1 , wherein said material may be colored for aesthetic purposes. 
   
   
       17 . The device of  claim 1  should be of a shape and size that it will both fit within the grip without affecting comfort and large enough to hold the any mechanisms necessary for its function.