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:
Oct. 03, 1989
Filed:
Feb. 29, 1988
Frederic W Buse, Allentown, PA (US);
Ingersoll-Rand Company, Woodcliff Lake, NJ (US);
Abstract
A centrifugal pump of the 'sealless' type including a casing containing a pumping chamber, inlet and outlet, and an impeller mounted on a shaft supported by an independent bearing system. The impeller shaft is driven by a motor located outside of the casing through a set of magnets located on the opposite sides of the wall of the casing and magnetically interconnected together with the motor driving the magnets located on the outside of the casing and with magnets located on the inside of the casing being connected to and driving the pump impeller. The bearing system includes a lubricating system which in some cases will use the pumped fluid as a lubricant and coolant.