Retainer nut assembly for pump and methods
US11852135B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2021 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Dec 31, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B53/22
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A retainer nut assembly for a fluid end of a pump system includes a plug with two blades separated by edge cuts, a plug exterior face and a threaded rod extending from the plug exterior face. Each of the blades includes an arcuate face. A mid-cap includes a hole for receiving the threaded rod therethrough with the mid-cap positioned adjacent the plug. The mid-cap further includes flange segments. A cover cap includes a hole for receiving the threaded rod therethrough with the cover cap positioned adjacent the mid-cap. The cover cap has extensions separated by cut outs. Each of the extensions are configured to extend axially between respective flange segments of the mid-cap when the cover cap is assembled to the mid-cap. A fastener engages the threaded rod and secures the retainer nut assembly together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.