Patent ID: 8288670

Claim:
A modular deadman switch for controlling the flow of a air/abrasive mix through a flow line, the modular deadman switch comprising: a. A body having a cavity, the cavity including an integral seat and a recess; b. An electrical activation switch assembly including an activation switch, the electrical activation switch adapted to be placed in the recess of the cavity; c. A lever handle mounted on a pivot hinge carded in the body, the lever handle movable between a release position and an engage position about the pivot hinge, wherein the lever handle is adapted for activating the activation switch when held in the engage position and for deactivating the activation switch when released to the release position; d. An electrical cord assembly adapted to be placed in the seat of the cavity, the electrical cord assembly having conductor wires connected to the switch when the electrical cord assembly and the activation switch assembly are respectively positioned in the recess and the seat, whereby activation of the switch by engaging the lever handle closes an electrical circuit and deactivation of the switch by disengaging the lever handle opens the electrical circuit; e. A body cover adapted to be placed over and closing the body cavity for securing the electrical cord assembly in the recess and the activation switch in the seat.