The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 1994
Filed:
May. 06, 1993
Richard L Bonin, Newport, RI (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A pump having a stator that forms a cylindrical chamber defined by a wall d a plurality of independently energizable magnetic field generators. A compression roller comprising a magnetic material is disposed within the wall and is free to move with respect to the stator. A flexible diaphragm is intermediate the stator and the compression roller and disposed along the wall portion. The flexible diaphragm to be pumped has an input port and an outlet port for the fluid being pumped. An energizing control at any given instant energizes a plurality of adjacent ones of the magnetic field generators. The magnetic field generators are organized into overlapping sets that can be energized as sets in sequence thereby to produce a rotating, axially extending magnetic field within the wall. The compression roller follows the rotating field thereby to compress adjacent positions of the flexible diaphragm to pump fluid from the diaphragm through the inlet port to the outlet port.