US 12,345,334 B2
Hydraulic fluid pump and stuffing box assembly for same
Chance Ray Mullins, Tulsa, OK (US); and Peter Ross Ehlers, Tulsa, OK (US)
Assigned to GARDNER DENVER PETROLEUM PUMPS, LLC, Tulsa, OK (US)
Filed by GD Energy Products, LLC, Tulsa, OK (US)
Filed on Jul. 28, 2022, as Appl. No. 17/875,880.
Application 17/875,880 is a continuation of application No. 16/400,549, filed on May 1, 2019, granted, now 11,454,321.
Prior Publication US 2022/0364645 A1, Nov. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. F16J 15/18 (2006.01); F04B 1/0448 (2020.01); F04B 53/16 (2006.01)
CPC F16J 15/184 (2013.01) [F04B 53/164 (2013.01); F04B 1/0448 (2013.01); F16J 15/18 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A stuffing box assembly for a fluid end of a hydraulic fluid pump, the stuffing box assembly comprising:
a first stuffing box member having only one central bore, the central bore being the only bore in the first stuffing box member configured to receive a plunger of the hydraulic fluid pump and a plurality of seals, the first stuffing box member further comprising a first bore spaced apart from the central bore and a third bore spaced apart from the first bore;
a second stuffing box member having a stuffing nut bore configured to receive a stuffing nut of the hydraulic fluid pump, the second stuffing box member further comprising a second bore spaced apart from the stuffing nut bore;
a first fastener configured to extend through the first bore and the second bore to secure the first stuffing box member to the second stuffing box member; and
a second fastener configured to extend through the third bore and into the fluid end to secure the first stuffing box member to the fluid end, wherein the third bore extends axially through the first stuffing box member between a first axial end and a second axial end, wherein the first axial end is configured to abut the fluid end, and the second axial end abuts the second stuffing box member.