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Machine Guarding

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Machine Guarding

The primary function of all guarding is to prevent an operator or bystander from being injured by a potentially dangerous portion of a machine. Often the hazard involves moving parts with the potential to cut, crush or draw-in body parts, although barrier guards may also be necessary when electrical, thermal or chemical dangers are present. Guarding may be accomplished with simple physical shielding of machine parts, or more advanced techniques such as laser curtains. It is also often necessary to employ interlocks to disable power to the machine when a guard has been removed, or pullback devices to ensure the user’s hands are not placed at the point of operation while the machine is operating.

Our engineers have been assisting attorneys and insurance representatives in investigating accidents since 1990. We have a highly qualified staff of engineers with advanced degrees from top-tier universities who have provided testimony on behalf of both plaintiffs and defendants at trial

Previous Cases

Damaged Pullback Hand Injury:

A machinist working on a press equipped with a pullback device suffered a crushed hand when it was caught in the point of operation. After inspecting the pullbacks, it was determined that one of the cable guide-tubes had been damaged. The damage allowed the pullback settings to be different for each hand. When the foreman set the pullbacks, he only tested the undamaged one. Thus, the damaged pullback permitted his other hand to remain at the point of operation and to be crushed by the ram.

Stone Screening Conveyor Belt Accident:

A worker at a stone-screening site attempted to service a conveyor belt while the screener was in operation. His sleeve became caught in the belt's tail pulley drawing him in and causing him to lose his arm. Prior to trial we determined that the locked door that contained the tail pulley was an appropriate guard and that the hostile environment would not permit an effective interlock. Thus, the worker was entirely at fault in this instance and was willing to accept a reduced settlement.