Apparatus for installing fasteners and explosive loads for use therewith

Abstract

An improved tool for installing an explosively driven fastener as well as an improved explosively driven fastener for use therewith are disclosed. The fastener includes a nail having a head with an explosive load attached thereto in a plastic cap that includes a buffer. The tool has a plurality of concentric cylinders and springs including a muzzle for receiving the fastener head and explosive load. A spring actuated firing pin ignites the load causing it to explode and drive the nail out of the tool. The explosion also automatically resets the tool. The tool and the fastener provide many advantages over existing explosively driven fasteners and the tools used to install them.

1 . An explosive load for use in a fastening tool, comprising:
 an ABS plastic container; and   a nitrocellulose load contained in said container, wherein   the plastic has a tensile strength of 350-500 kg/cm 2 .   
     
     
         2 . The explosive load according to  claim 1 , wherein:
 the plastic has a flexural strength of 550-650 kg/cm 2 .   
     
     
         3 . The explosive load according to  claim 2 , wherein:
 the plastic has an IZOD Impact Strength of 25-35 kg-cm/cm.   
     
     
         4 . The explosive load according to  claim 1 , wherein:
 the plastic has an IZOD Impact Strength of 25-35 kg-cm/cm.   
     
     
         5 . The explosive load according to  claim 1 , wherein:
 said nitrocellulose load is 94% Nitrocellulose, 5% Methocel and color agent, 1% Diphenylamine.   
     
     
         6 . The explosive load according to  claim 1 , wherein:
 said container has one or more radial protrusions.   
     
     
         7 . The explosive load according to  claim 1 , further comprising:
 a nail coupled to said container.   
     
     
         8 . An explosive load for use in a fastening tool, comprising:
 an ABS plastic container; and   a nitrocellulose load contained in said container, wherein   the plastic has a flexural strength of 550-650 kg/cm 2 .   
     
     
         9 . The explosive load according to  claim 8 , wherein:
 the plastic has an IZOD Impact Strength of 25-35 kg-cm/cm.   
     
     
         10 . The explosive load according to  claim 8 , wherein:
 said nitrocellulose load is 94% Nitrocellulose, 5% Methocel and color agent, 1% Diphenylamine.   
     
     
         11 . The explosive load according to  claim 8 , wherein:
 said container has one or more radial protrusions.   
     
     
         12 . The explosive load according to  claim 8 , further comprising:
 a nail coupled to said container.   
     
     
         13 . An explosive load for use in a fastening tool, comprising:
 an ABS plastic container; and   a nitrocellulose load contained in said container, wherein   the plastic has an IZOD Impact Strength of 25-35 kg-cm/cm.   
     
     
         14 . The explosive load according to  claim 13 , wherein:
 said nitrocellulose load is 94% Nitrocellulose, 5% Methocel and color agent, 1% Diphenylamine.   
     
     
         15 . The explosive load according to  claim 13 , wherein:
 said container has one or more radial protrusions.   
     
     
         16 . The explosive load according to  claim 13 , further comprising:
 a nail coupled to said container.