Underwater propulsion device
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorAlfred A. Gates
Life of this patent
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Abstract
Disclosed is a water jet propulsion device for divers and diver equipment. forward pressurized air chamber and a rearward water containing chamber are positioned inside a cylindrical housing and are separated by a flexible membrane which is adjacent to a conical deformation plate. On opening a valve located in communication with the water containing housing, pressurized air in the air chamber forces water from the water chamber through a nozzle to the exterior of the housing until the flexible membrane expands to bear against the conical rearward deformation plate. The device is thus moved in a forward direction along with its attached swimmer or equipment.
Claims18
A water jet propulsion device comprising:
- a housing means having a rigid cylindrical form;
- a pressurized gas containing means having pressurized gas therein positioned inside said housing means;
- a liquid containing means having liquid therein positioned inside said housing means behind the pressurized gas containing means;
- a flexible pressure transmission means interposed between the forward pressurized gas containing means and the liquid containing means;
- and
- an aft liquid release means in communication with the liquid containing means for releasing liquid there from under pressure.
Dependencies are inferred from the claim text.