Impact device

Details Impact device Impact device

1992-05-08

1993-12-14

Smith, Scott

Tool driving or impacting

Impacting devices

Hammer head driven by pulsating fluid pressure

173206, 173128, 91229, 299 37, B25D 914, E02F 332

Patent

active

052693821

ABSTRACT:
An impact device for breaking up and separating hard material comprises an actuating system for providing a faster cycle rate as well as an increased impact force. More specifically, the device includes a pair of pistons movably arranged in a cylinder to cooperate in compressing the gaseous component prior to initiating the blow. A closed tube is provided to fluidly interconnect opposite chambers adjacent the two pistons to coordinate the different movements of the pistons to effect the desired compression. The impact device is particularly well suited for use in an impact bucket.

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ESCO Brochure Entitled "Principle of Operation," publicly available at least as early as 1991.

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