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:
Sep. 30, 2025
Filed:
Sep. 28, 2023
Viking Pump, Inc., Cedar Falls, IA (US);
Andrew Anderson, Cedar Falls, IA (US);
Scott Meyer, Brandon, IA (US);
Alfonso Johnson, Cedar Falls, IA (US);
Viking Pump, Inc., Cedar Falls, IA (US);
Abstract
One or more techniques and/or systems are disclosed for an improved barrier seal for use on a rotating shaft of a pump to mitigate leakage of fluids along the shaft. The body of the barrier seal may comprise a one-piece combined bushing and seal that can be selectably fastened to the pump bracket. Internal and external channels in the body can operably hold gaskets, internally dynamic seals, and externally static seals, inside the stuffing box of the pump bracket. A lubricant port can be disposed on a flange of the seal portion to provide lubricant to the interior of the barrier seal, which can also be fluidly coupled with the outside of the seal. A pressurized lubricating fluid can also help mitigate leakage of pumped fluid by pressurizing between static gaskets on the outside, and provide lubrication for the rotating shaft on the inside of the seal.