Gripping assembly for impact hammer
AssigneeThe United States of America as represented by the Department of Health and Human Services
InventorsBilly M. Stewart, Dean F. Eisenbacher, Matthew L. Kopp, Tomas J. Zysk, Catherine H. Sander
Life of this patent
Estimating the term…
Abstract
A gripping assembly mounted on an impact hammer having a longitudinally extending impact axis, the gripping assembly including a pair of opposed elongate gripping arms, having gripping end portions which may be extended and swung toward each other to grip material in the region of the working end of the impact hammer. When retracted, the gripping arms rest to opposite sides of the impact hammer to permit free operation of the impact hammer.
Claims22
A gripping assembly adapted to be mounted on an impact hammer having a longitudinally extending impact axis, the assembly comprising
- a pair of opposed, laterally spaced apart, elongate gripping arms, each of which has a gripping portion adjacent one of its ends,
- mounting mechanism adapted to mount said arms on said impact hammer with said gripping arms spaced to opposite sides of said impact axis and shiftable longitudinally between retracted and extended position, with said gripping portions of said arms spaced apart a selected distance when said arms are retracted and said gripping portions moving toward each other as said gripping arms are shifted toward their extended positions, and
- operator mechanism coupled to said gripping arms operable to shift said arms between their retracted and extended positions.
A tool assembly adapted to break hardened materials and manipulate materials comprising
- an impact hammer having a material impacting member disposed on a longitudinally extending impact axis,
- a pair of opposed, laterally spaced apart, elongate gripping arms, each of which has a gripping portion adjacent one of its ends,
- mounting mechanism mounting said arms on said impact hammer with said gripping arms spaced to opposite sides of said impact axis and shiftable longitudinally between retracted and extended position, with said gripping portions of said arms spaced apart a selected distance when said arms are retracted, and said gripping portions moving toward each other as said gripping arms are shifted toward their extended positions, and
- operator mechanism coupled to said gripping arms operable to shift said arms between their retracted and extended positions.
Dependencies are inferred from the claim text.