Extraction and adjustment tool for tangless inserts
AssigneeEmhart Inc.
InventorRoger L. Zitnay
Life of this patent
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Abstract
An extraction and adjustment tool for tangless helically coiled wire inserts according to the invention includes a mandrel with a leading portion having a tooth for reception in a recess of the insert for left-hand rotation of the insert. An end opposite the leading portion is received in a bushing of a handle portion for connecting the mandrel to the handle. Left-hand rotation of the handle contracts the insert about the leading portion of the mandrel to facilitate adjustment or removal of the insert.
Claims19
An extraction and adjustment tool for tangless helically coiled wire inserts having a recess in a trailing end thereof, said tool comprising:
- a mandrel having a leading portion and an end opposite said leading portion, said leading portion including a tooth for reception of said recess of said insert for left-hand driving of said insert;
- and
- a body including a handle and connected to said end of said mandrel, whereby left-hand rotation of said handle contracts said insert about said leading portion of said mandrel to facilitate adjustment or removal of said insert.
A mandrel for use with a tool for adjusting or removing tangless helically coiled wire inserts having a recess and a trailing end thereof, said mandrel comprising:
- a body having a leading portion and an end opposite said leading portion, said leading portion including a tooth for reception in said recess of said insert for left-hand driving said insert, said end adapted to selectively secure said mandrel to said extraction and adjustment tool.
An extraction and adjustment tool set for tangless helically coiled wire inserts having a recess and a trailing end thereof, said tool set comprising:
- multiple mandrels, each mandrel of said multiple mandrels having a leading portion and an end opposite said leading portion, each of said leading portions differing in diameter and including a tooth for reception in said recess of said insert for left-hand driving said insert;
- and
- a body including a handle and a bushing, said bushing selectively receiving said end of one of said multiple mandrels, whereby left-hand rotation of said handle contracts said insert about said leading portion of said mandrel to facilitate adjustment or removal of said insert, whereby a mandrel complementing an inner diameter of said insert is selected from said multiple mandrels to facilitate adjustment or removal of said insert.
Dependencies are inferred from the claim text.