Piton assembly
OwnerThomas F. Byrne, Edward Gitlininventors
Life of this patent
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Abstract
An ice piton assembly used for ice climbing comprising a hollow tube onto which a strike absorbent ear capable of being hammered is fitted and secured into a prenotched section of said tube so as to impart the force of the blow down the approximate center of the tube. At one end of said tube is a swivel assembly that rotates in one position and is fitted in the other and to which the climber attaches the rope. The ice piton has a feature particular to the demands of climbing in that the swivel assembly adjusts to assure the most effective downward pull regardless of the position of the piton.
Claims1
An improved ice piton assembly suitable for fixing in an ice-like medium comprising:
- a tubular externally threaded hollow shaft having a first end that is substantially bevelled and
- having a second end with a truncated configuration so that when measuring from said first end, there is a point of maximum length on said second end and diametrically across from said maximum length point, a point of minimum length,
- said shaft possessing a slot extending along a portion of the length of said shaft through said minimum point of said second end, and
- at a distance removed from said minimum point of said second end, a first flange and a second flange separated by a ring attachment positioned over said shaft, the first portion of said ring attachment comprising a bolt head-like multifaceted peripheral surface and immediately adjacent thereto a second portion comprising a circular peripheral surface, and
- a handle attachment, having at one end, an opening positioned between said first and said second flanges, the interior of said opening having the configuration comprising facets sufficient to mesh with said bolt head-like multifaceted peripheral surface and when at rest capable of rotating freely around the circular surface of said ring attachment said handle at the other end thereof having an opening suitable for attaching a carabiner thereto;
- a notch substantially positioned through said shaft at the point of maximum length to which is fixed an ear piece extending above said shaft and said first flange, said ear piece having a horizontal bottom lip piece that rests in said notch, said ear piece being affixed to said shaft and said flange.
Dependencies are inferred from the claim text.