Essex Industries, Inc.

Leland L Seghetti

James R Phlipot

Steve R Pinkston

Apparatus in a trigger grip switch assembly for sequential actuation of first and second electrical switch banks. First and second actuating elements each have a base portion, a switch-actuating arm extending from the base portion, and a resilient pressure-transferring arm extending from the base portion at an acute angle to the respective switch-actuating arm. The respective base portions are mounted for pivotal movement relative to the respective first and second switches and for presenting the switch-actuating elements in respective proximity to the first and second switches for actuation thereof upon base portion pivoting movement and for presenting the pressure-transferring arms in mutually overlapping relation with a distal end portion of a first pressure-transferring arm in contact with a medial portion of a second pressure-transferring arm. The pressure-transferring arms form between them an angle at least slightly greater than 30 degrees to provide an over-centered stable relationship. Pressure transferred by a trigger switch button to a distal end portion of the second pressure-transferring arm causes destabilizing sequential collapsing movement from the overcentered relationship for corresponding sequential actuation of the switches.

Trigger switch assembly

A compact, regulated gas flow control valve includes a valve body having a clamp for securement to a high pressure gas cylinder. An inlet at one end receives the high pressure gas from the cylinder. A piston-actuated regulator drops the high pressure to a low pressure, maintaining the low pressure at a substantially constant delivery value. An outlet and a flow control selector knob are located at the other end of the valve body. The knob selects a preselected flow rate for delivery of the low pressure gas by the outlet. The knob controls position of a rotor carrying a plurality or precalibrated flow control orifice inserts, the knob being rotatable but with positive detenting for orienting the rotor to permit flow only through a selected one of the orifice inserts for delivery by said outlet. The sequence of orifice inserts defines a preselected schedule of different flow rates upon rotation of the said selector knob.

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St. Louis, MO, United States of America

Leland L Seghetti