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US 4,020,555 AGranted
Connecting mechanism for a saw blade
AssigneePevrick Engineering Company, Inc.
InventorJohn R. Hedrick
Life of this patent
Estimating the term…
Abstract
A connecting mechanism for a saw blade of a surgical cutting tool in which the blade has two side projections spaced slightly from one end thereof and in which the connecting mechanism comprises a rotatable collar on the end of a reciprocating shaft which moves the blade; the end of the shaft and collar having slots alignable to receive the blade and the collar having pockets to receive the projections when the collar is released to rotate to a blade moving position.
Claims12
In combination:
- a reciprocating shaft;
- means for releasably mounting a tool on one end of said shaft;
- said mounting means comprising a collar mounted exteriorly on said one end of said shaft for limited rotation between first and second angular positions;
- a socket on said one end of said shaft for receiving one end of said tool;
- at least one slot in said collar;
- at least one projection on said one end of said tool movable through said slot when said collar is in said first position;
- and
- a pocket in said collar in communication with said slot for receiving said projection when said collar is in said second position;
- said pocket transmitting the reciprocation of said shaft to said tool.
6 more elements
In combination:
- a saw blade having two side projections from opposite edges at one end of said blade;
- a reciprocating shaft;
- a collar mounted about one end of said shaft for limited rotation between first and second angular positions;
- a socket in said one end of said shaft;
- a first set of slots comprising at least two opposite slots in the wall of said socket and a second set of slots comprising at least two opposite slots in the wall of said collar;
- said slots in said socket and said collar being in alignment when said collar is in said first angular position;
- and
- a pocket connected with each slot in said collar for receiving one of said projections when said collar is in said second angular position;
- said projections being inserted into both sets of slots and the edges of said one end of said blade being inserted only into said first set of slots in said socket when said collar is in said first position and said pockets moving to receive said projection when said collar moves into said second position to thereby secure said saw blade to said shaft.
6 more elements
Dependencies are inferred from the claim text.