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:
Sep. 18, 2001
Filed:
Nov. 02, 1999
Applicant:
Inventor:
Michael Philip Goldowsky, Valhalla, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 1/10 ;
U.S. Cl.
CPC ...
A61M 1/10 ;
Abstract
A fluid pump includes a piston mounted in a housing. A check valve is disposed in the piston for controlling fluid flow. A linear motor joins the piston and housing for axial oscillation of the piston to pump the fluid in unidirectional flow. A rotary motor includes magnet strips mounted in the piston and a cooperating rotary drive coil mounted in the housing. The rotary motor is magnetically uncoupled from the linear motor.