Hand-operated device for low pressure compensation in vacuum containers, has lever support with two wings, which are bent at clamp and attached to lever in reciprocative and symmetrical manner

摘要

The device has a lever, a clamp that is attached directly or over a handle to the lever, and a lever support. The lever support consists of two wings that are bent at the clamp and are attached to the lever in a reciprocative and symmetrical manner. Free lever end lies on the side to the wings or on the side for clamp and has lever both-sided free ends. The lever is extended into an arm at its other end.