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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 11971022 B1

PDFFull Text
Date of Patent:
Apr. 30, 2024

Filed:

Mar. 07, 2022

System for dispensing abrasive material

Applicant:

Graco Minnesota Inc., Minneapolis, MN (US);

Inventors:

Steven R. Sinders, North Canton, OH (US);

John R. Scopelite, Louisville, OH (US);

Assignee:

Graco Minnesota Inc., Minneapolis, MN (US);

Attorney:

Kinney & Lange, P. A.

Primary Examiner:

Kenneth J Hansen

Assistant Examiner:

David N Brandt

Int. Cl.
CPC ...
F04B 15/02 (2006.01); F04B 13/00 (2006.01); F04B 19/08 (2006.01); F04B 19/22 (2006.01); F04B 23/06 (2006.01); F04B 53/00 (2006.01); F04B 53/02 (2006.01); F04B 53/10 (2006.01); F04B 53/12 (2006.01); F04B 53/14 (2006.01); F04B 53/16 (2006.01);
U.S. Cl.
CPC ...
F04B 15/02 (2013.01); F04B 13/00 (2013.01); F04B 19/22 (2013.01); F04B 53/008 (2013.01); F04B 53/02 (2013.01); F04B 53/143 (2013.01); F04B 53/146 (2013.01); F04B 53/164 (2013.01); F04B 19/08 (2013.01); F04B 23/06 (2013.01); F04B 53/1087 (2013.01); F04B 53/121 (2013.01); F04B 53/168 (2013.01);
Abstract

A system for dispensing abrasive materials includes a transfer pump configured to pump abrasive material to a metering pump configured to pump the abrasive material to an application. Dynamic interfaces within the pumps are at least partially formed by sleeved components of the pump interfacing with a seal configured to engage with the sleeved surface during relative movement between the sleeved surface and the seal. The smooth exterior surfaces of the sleeves interface with the seals to prevent abrasive particulate in the material from adhering to the sleeve, preventing the abrasive particulate from being pulled between the sleeve and the seal.

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