Special crimping tool
OwnerLeonard J. Lawinventor
Life of this patent
Estimating the term…
Abstract
A tool designed to perform the crimping of irregular shaped rings onto surfaces that are also potentially geometrically irregular. Because of the irregular shape of the crimping ring, special holding mechanisms and unique crimping ribs must be employed. A primary use of the subject invention is to field crimp a chain ring onto a cap chain utilized with installed fire hydrant caps.
Claims14
A crimping tool for crimping an irregular shaped ring having geometrically regular and irregular regions, said crimping tool comprising:
- a first strut;
- a second strut;
- a structural arch pivotally connected to said first strut at a first pivot and pivotally connected to said second strut at a second pivot, wherein said arch and said first and second struts being movable between a ring accepting orientation and a ring crimping orientation;
- means for removably attaching a crimping rib of various size along an inner surface of each of said first and second struts, wherein said ribs are positioned in opposite alignment on each strut, and wherein at said ring crimping orientation said ribs perform said ring crimping;
- a recessed slot placed into said arch and said crimping ribs, wherein said slot is sized to position said ring;
- and
- handles attached to said struts for permitting rotation of said first strut about said first pivot in a first rotational direction while simultaneously rotating said arch and said second strut about said second pivot in an opposite direction to obtain said ring crimping orientation.
A crimping tool for crimping an irregular shaped ring having a substantially semicircular region and an irregular region, said crimping tool comprising:
- a pair of opposing jaws including a first jaw and a second jaw pivotally connected to said first jaw at an upper pivot, said jaws being movable between a ring accepting orientation and a ring crimping orientation;
- a crimping rib positioned on a lower part of each jaw, wherein at said ring crimping orientation said ribs extend below the substantially semicircular region of said ring, and wherein the size of said rib is sufficient to substantially crimp said ring;
- a recessed slot to position said ring, said slot extending continuously through each of said first and second jaws and said crimping ribs thereof so as to receive and hold therewith in the substantially semicircular and irregular regions of said ring;
- and
- handles attached to said jaws at the lower parts thereof, wherein permitting rotation of said second jaw about said upper pivot in a first rotational direction while simultaneously rotating said first jaw in an opposite direction to close said jaws.
A crimping tool for use with a teardrop-shaped ring having a semi-circular portion and a tapered portion, said tool comprising:
- a structural first strut;
- a structural second strut;
- a structural arch pivotally connected to said first strut at a first pivot and pivotally connected to said second strut at a second pivot, wherein said arch and said first and second struts being movable between a ring accepting orientation and a ring crimping orientation;
- a crimping rib attached on an inner surface of each of said first and second struts and sized and positioned to substantially crimp said ring in said ring crimping orientation;
- a recessed slot placed into said arch, wherein said slot is sized to receive and hold said tear-drop shaped ring along its semi-circular portion and wherein said slot is located off-center relative to said arch;
- a recessed slot placed into said ribs, wherein said slot is positioned as a continuation of said slot placed into said arch, and wherein said slot is sized to receive said tear-drop shaped ring along its tapered portion during said ring crimping orientation;
- and
- handles attached to said struts for permitting rotation of said first strut about said first pivot in a first rotational direction while simultaneously rotating said second strut about said second pivot in an opposite direction to obtain said ring crimping orientation.
Dependencies are inferred from the claim text.