Paul D Cary

US Patent:

20210372398, Dec 2, 2021

Filed:

Aug 11, 2021

Appl. No.:

17/399208

Inventors:

- Tulsa OK, US
Paul Douglas Cary - Broken Arrow OK, US
Ryan Huseman - Quincy IL, US

International Classification:

F04B 53/22
F04B 53/10

Abstract:

A method of assembling a fluid end includes inserting a valve through a bore of a housing of the fluid end and into an interior volume of the fluid end, inserting a valve cover into the bore such that the valve cover seals the bore, and coupling a lock cover to the housing, the lock cover positioned over the bore to prevent removal of the valve cover from the bore. When the lock cover is coupled to the housing, the lock cover does not apply a preload against the valve cover.

US Patent:

20200370548, Nov 26, 2020

Filed:

May 21, 2019

Appl. No.:

16/418338

Inventors:

- Tulsa OK, US
Paul Douglas Cary - Broken Arrow OK, US

International Classification:

F04B 53/22
F04B 53/10

Abstract:

A method of assembling a fluid end includes inserting a valve through a bore of a housing of the fluid end and into an interior volume of the fluid end, inserting a valve cover into the bore such that the valve cover seals the bore, and coupling a lock cover to the housing, the lock cover positioned over the bore to prevent removal of the valve cover from the bore. When the lock cover is coupled to the housing, the lock cover does not apply a preload against the valve cover.

US Patent:

20180313351, Nov 1, 2018

Filed:

Apr 26, 2017

Appl. No.:

15/497543

Inventors:

- Tulsa OK, US
Chris Lee Cackler - Jenks OK, US
Paul Douglas Cary - Broken Arrow OK, US

International Classification:

F04B 53/16
F04B 49/22
F04B 1/00
F04B 19/22

Abstract:

A well servicing pump includes a power end and a fluid end operably coupled to the power end. The fluid end includes a casing that defines at least one pumping chamber, the pumping chamber at least partially defined by a spherical wall, and a first cylindrical wall extending along a first axis and defining a portion of a power end bore, the first cylindrical wall intersecting the spherical wall to define a first interface edge. A second cylindrical wall extends along a second axis and defines a portion of a discharge bore, the second cylindrical wall intersecting the spherical wall to define a second interface edge, and a third cylindrical wall extends along a third axis and defines a portion of a suction bore, the third cylindrical wall intersecting the spherical wall to define a third interface edge, wherein the first axis, the second axis, and the third axis are arranged between 100 and 140 degrees with respect to one another.

US Patent:

20140345452, Nov 27, 2014

Filed:

May 21, 2013

Appl. No.:

13/899301

Inventors:

- Wayne PA, US
Paul Douglas CARY - Broken Arrow OK, US

Assignee:

GARDNER DENVER, INC. - Wayne PA

International Classification:

F16J 10/02

US Classification:

921691

Abstract:

A fluid end of a high-pressure pump having a power end bore, a discharge bore, a suction bore, an access bore, and a cross-bore intersection formed in portions of the fluid end is provided. A transitional open area opens into the cross-bore intersection from the power end bore; a transitional open area opens into the cross-bore intersection from the access bore; a transitional open area opens into the cross-bore intersection from the suction bore; and a transitional open area opens into the cross-bore intersection from the discharge bore. A spherical geometry is created in the cross-bore intersection. A spherical surface forms an outer boundary of the cross-bore intersection.