Patent ID: 7263920
Filing Date: 2007-09-04
Classification: B25B

Abstract:
1. A torque impact wrench comprising: an elongated tubular metal housing having a front end and a rear end; an impact wrench having a housing having a front end and a rear end; a drive shaft having an X-axis extends forwardly from said front end of said housing of said impact wrench; said impact wrench having connection means for connecting said impact wrench to a source of compressed air; attachment means for mounting said front end of said impact wrench in said rear end of said tubular metal housing; an elongated tubular socket having an open front end and a closed rear end; said open front end having a bore configured to removably receive a bolt shaped head of a drive screw; said closed end having a bore configured to matingly receive a head on the front end of said drive shaft; an elongated drive screw having a longitudinally extending X-axis, a front end, a rear end having a bolt-shaped head that is telescopically received in said front end of impact socket; said drive screw having in sequence from said front end, a front portion L a screw drive nut having a longitudinally extending bore that aligns with said X-axis; said bore has internal threads; said screw drive nut being rigidly positioned within said tubular metal housing so that it is not axially movable; a first load disc rigidly mounted in said front end of said tubular metal housing to close this end of said tubular metal housing said first load disc having a rear end; a second load disc positioned rearwardly a predetermined distance from said rear end of first load disc in said tubular metal housing to form a work chamber between said respective load discs; said second load disc having a front end; said second load disc being capable of restricted axial travel within said tubular metal housing; at least one window opening in said tubular metal housing adjacent said work chamber; means for converting rotational motion of said drive screw to an axial force that drives said second load disc toward said first load disc; work performing structure positioned within said tubular metal housing between said respective load discs.