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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.:

US 11511372 B1

PDFFull Text
Date of Patent:
Nov. 29, 2022

Filed:

Apr. 30, 2018

Technique to improve the performance of a pump with a trimmed impeller using additive manufacturing

Applicant:

Fluid Handling Llc., Morton Grove, IL (US);

Inventor:

Jeffrey D. Lopes, Palatine, IL (US);

Assignee:

FLUID HANDLING LLC, Morton Grove, IL (US);

Attorney:

Ware, Fressola, Maguire & Barber LLP

Primary Examiner:

Topaz L Elliott

Assistant Examiner:

Aye S Htay

Int. Cl.
CPC ...
F04D 29/42 (2006.01); F04D 29/62 (2006.01); B33Y 80/00 (2015.01); B22F 10/20 (2021.01); B33Y 10/00 (2015.01); B23K 26/342 (2014.01); B23K 15/00 (2006.01); F04D 29/22 (2006.01); B23K 10/02 (2006.01); B23K 26/00 (2014.01); B22F 7/08 (2006.01); B23K 103/04 (2006.01); B23K 103/10 (2006.01);
U.S. Cl.
CPC ...
B23K 26/342 (2015.10); B22F 7/08 (2013.01); B22F 10/20 (2021.01); B23K 10/027 (2013.01); B23K 15/00 (2013.01); B23K 15/0086 (2013.01); B23K 15/0093 (2013.01); B23K 26/0006 (2013.01); B33Y 80/00 (2014.12); F04D 29/2222 (2013.01); F04D 29/426 (2013.01); F04D 29/428 (2013.01); F04D 29/628 (2013.01); B23K 2103/05 (2018.08); B23K 2103/10 (2018.08); B33Y 10/00 (2014.12);
Abstract

A pump features a trimmed impeller having a trimmed impeller diameter that is less than a standard full-sized diameter of a standard full-sized impeller for a standard full-sized casing, and having a circumferential outer edge; and a modified standard full-sized casing having dimensions corresponding to the standard full-sized casing and configured to house the trimmed impeller for pumping a fluid, having an outer peripheral wall, and having an inner annular volute portion between the circumferential outer edge of the trimmed impeller and the outer peripheral wall configured with a volume of material deposited using an additive manufacturing process so as to fill in vacant space otherwise caused by the trimmed impeller diameter being less than the standard full-sized impeller diameter. The additive manufacturing process is a directed energy deposition.

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