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.

Date of Patent:
May. 23, 2017

Filed:

Apr. 13, 2012
Applicants:

John Frater, Scottsdale, AZ (US);

Ricky Mcgahee, Tucson, AZ (US);

Inventors:

John Frater, Scottsdale, AZ (US);

Ricky McGahee, Tucson, AZ (US);

Assignee:

FLSMIDTH A/S, Valby, DK;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 1/00 (2006.01); F04D 7/04 (2006.01); F04D 29/42 (2006.01); F04D 29/62 (2006.01);
U.S. Cl.
CPC ...
F04D 1/00 (2013.01); F04D 7/04 (2013.01); F04D 29/4286 (2013.01); F04D 29/622 (2013.01);
Abstract

A centrifugal pump for a slurry combines design changes with respect to conventional configurations that produce quasi-laminar flow and materially extend the life of the casing. The cutwater clearance of the casing is increased to a range of 0.20 to 0.25 times the diameter of the impeller. The casing includes a redesigned removable annular liner with a diameter increased to at least 1.15 times the diameter of the impeller. The pump preferably also has an axially adjustable wear ring with a diameter increased such that it extends by at least 10% over the diameter of the area of interface between the wear ring and the impeller.


Find Patent Forward Citations

Frater, John. (2017). Low-wear slurry pump (U.S. Patent No. 9657739). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9657739

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…