Fastener Driving tools
OwnerRobert Urquhart Connell, Peter John O'Connor +2inventors
InventorsRobert Urquhart Connell, Peter John O'Connor, Ian Ross Ferrier, David John McCullough
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Abstract
An explosively actuated tool for driving a fastener into a substrate is of indirect acting type having a driving piston mounted within the barrel of the tool for driving the fastener. The tool is a single shot tool which receives an explosive charge, particularly a .22 cal×0.613 ins long unnecked charge capable of generating a piston kinetic energy of at least 260 joule. The piston has a recess in its rear face able to smooth-out sharp pressure spikes and reduce peak pressure generated during combustion of the high powered explosive charge.
Claims9
An explosively actuated tool for driving a fastener into a substrate, said tool being of indirect acting type and comprising a driving piston mounted within a barrel of the tool for driving the fastener, wherein the tool is a single shot tool able to receive an explosive charge capable of generating a piston kinetic energy of at least 260 joule.
An explosively actuated tool for driving a fastener into a substrate, said tool being of indirect acting type and comprising a driving piston mounted within a barrel of the tool for driving the fastener, wherein the tool is able to receive a .22 cal×0.613 ins long unnecked charge.
Dependencies are inferred from the claim text.