Patent ID: 7258509

Claim:
A diving apparatus for supplying a diver with breathing air comprising: a fresh air tank which can be carried and fastened on the body of the diver, a fresh air line leading from the air atmosphere to the fresh air tank, a pump actuated by muscular force of the diver whereby the diver conveys fresh air via the fresh air line into the fresh air tank, a first valve in the fresh air line between the fresh air tank and the air atmosphere, which prevents backflow of the fresh air into the air atmosphere, a breathing air line connected with one end to the fresh air tank, a mouthpiece at the other end of the breathing air line, a second valve arranged on the breathing air line between the fresh air tank and the mouthpiece, at least one pulling means which is actuated at least with the diver's leg or the diver's arm and permits the actuation of the pump by the leg or arm movement, said pulling means being interrupted at least once between the pump and the limb on which the pulling means is fitted and has at the interruption a quick-release device which connects two portions of the pulling means at the interruption and permits a separation of the two portions; said quick-release device having a folding buckle which is permanently fitted to one end of the pulling means and through which the other end, which is a free pulling end, extends and is fastened by a clamp, and diving weights which serve to compensate the buoyancy of the diver; wherein the free pulling means end extends through the folding buckle and is laid through a handgrip and around a web fastened on an opposing piece of the pulling means such that if the diver pulls on the handgrip the folding buckle opens, the force on the pulling means is eliminated, and the free pulling means end around the web is loosened.