Accession Number : ADD001868
Title : Vermiculating Polytoroidal Thruster.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Fashbaugh,Richard H ; Gaberson,Howard A ; Stone,Philip L ; Williams,Donald E ; Stephenson,John M
Report Date : 06 May 1975
Pagination or Media Count : 7
Abstract : The patent relates to a vermiculating polytoroidal thruster which provides large thrust and braking forces for various devices, comprised of a plurality of inflatable bladders mounted on a spool and held in place by end plates. When the bladders are inflated, they squeeze against the inner surface of a tube or tunnel and generate large friction forces for braking or thrusting. Thrust is provided by vermiculating motion which is generated by inflating one bladder while simultaneously deflating another. A net forward motion is achieved by providing controls for the axial expansion of the bladders. Selective inflation and deflation of certain bladders is controlled by a cycle timer and solenoid valves.
Descriptors : *Tunneling, *Thrusters, *Braking, *Patents, Bladders, Inflatable structures, Motion, Solenoid valves
Subject Categories : Civil Engineering
Construction Equipment, Materials & Supplies
Distribution Statement : APPROVED FOR PUBLIC RELEASE