Abstract

A spring tool for actuating explosive fasteners for driving nails into a substrate is disclosed. For the tool to operate at its maximum potential the firing pin guide should be pushed securely against the rear of the fastener and the tip of the fastener should be pushed securely against the substrate. The action of the operator pushing the tool forward to actuate the tool moves the trigger body forward while compressing the firing spring until the trigger body travels the exact distance needed to release the trigger ball. The trigger body must also be in optimal rotational orientation with the tool and means for accomplishing the alignment is disclosed.

IPC Classes  ?

• B25C 1/12 - Hand-held nailing toolsNail feeding devices therefor operated by combustion pressure generated by detonation of a cartridge acting directly on the nail
• B25C 1/18 - Details or accessories, e.g. splinter guards, spall minimisers

Abstract

For a spring tool for actuating explosive fasteners to operate at its maximum potential the firing pin guide should be pushed securely against the rear of the fastener and the tip of the fastener should be pushed securely against the substrate. To achieve this, the action of the operator pushing the tool forward to actuate the tool moves the trigger body forward while compressing the firing spring until the trigger body travels the exact distance needed to release the trigger ball. A step or backstop insert is added to the inside of the trigger body such that at the exact distance where the trigger ball is released, the step contacts the rear of the firing pin guide so that all internal components of the tool to form a solid (contacting) stack, from the tip of the fastener to the end cap of the tool.

IPC Classes  ?

• B25C 1/08 - Hand-held nailing toolsNail feeding devices therefor operated by combustion pressure

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.

IPC Classes  ?

• B25C 1/12 - Hand-held nailing toolsNail feeding devices therefor operated by combustion pressure generated by detonation of a cartridge acting directly on the nail
• B27F 7/09 - Driving means operated by fluid pressure
• F16B 19/14 - Bolts or the like for shooting into concrete constructions, metal walls, or the like by means of detonation-operated nailing tools
• F42B 3/04 - Blasting cartridges, i.e. case and explosive for producing gas under pressure
• F42B 3/28 - Cartridge cases characterised by the material used, e.g. coatings

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.

IPC Classes  ?

• B25C 1/14 - Hand-held nailing toolsNail feeding devices therefor operated by combustion pressure generated by detonation of a cartridge acting on an intermediate plunger or anvil

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.

IPC Classes  ?

• F16B 19/14 - Bolts or the like for shooting into concrete constructions, metal walls, or the like by means of detonation-operated nailing tools

Goods & Services

solid propellant charges attached to nails for penetrating concrete or steel

Goods & Services

Manually operated hand tools, namely, drivers for setting fasteners attached to propellant charges and extension poles as component parts of the tools