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US 4,034,594 AGranted
Variable impact tool
AssigneeMorgan Manufacturing Inc.
InventorCarl E. Morgan
Life of this patent
Estimating the term…
Abstract
A variable impact jarring tool comprising a handled shaft with a massive impact sleeve slideable thereon. A self-tapping screw on the end of the shaft is driven to grip the workpiece and a first collar adjacent the handle serves as an anvil against which the sleeve impacts. A second collar may be fixed on the shaft in either of two positions, one adjacent the end for a full impact stroke and the other midway thereof for a limited stroke, but providing more clearance at the end for placement of the screw in close places.
Claims5
A variable impact jar-transmitting tool comprising;
- a shaft;
- a handle on one end of said shaft;
- an anvil on said shaft adjacent said handle;
- a massive impact sleeve slideable on said shaft and adapted to be gripped manually;
- means on the other end of said shaft for gripping a workpiece;
- a collar slideable on said shaft intermediate said other end and said sleeve;
- and
- interengagable means on said collar and said shaft for locking said collar selectively in a first position adjacent said workpiece gripping means to enable maximum stroke of said impact sleeve and a second position displaced therefrom to limit said stroke and to provide substantial clearance between said collar and said gripping means.
5 more elements
Dependencies are inferred from the claim text.