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:
Jun. 01, 1993
Filed:
Dec. 26, 1991
Paul Cooper, Titusville, NJ (US);
Ingersoll-Dresser Pump Company, Liberty Corner, NJ (US);
Abstract
A boiler feed pump including an elongate casing adapted to be interconnected in a pipeline and a variable speed electrical motor driving an axially extending shaft, which drives a condensate inducer pump and a multiple stage centrifugal pump, all of which are housed within the casing. The inducer pump comprises a series of axially spaced rotating annular disks which the condensate flows between. The centrifugal pump receives the condensate from the inducer pump and pumps it to a higher pressure suitable for feeding a boiler. The motor can operate at a variable speed to handle various flow demands. The motor also serves as a thrust balancing device for the multiple stage centrifugal pump.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile