| Patent application number | Description | Published |
|---|
| 20120144995 | OFFSET VALVE BORE IN A RECIPROCATING PUMP - A fluid end | 06-14-2012 |
| 20120183424 | OFFSET VALVE BORE FOR A RECIPROCATING PUMP - A fluid end | 07-19-2012 |
| 20130195701 | Pump Fluid End with Integrated Web Portion - A fluid end block for attachment to a power end of a high pressure reciprocating pump includes a main body portion having an outwardly facing body forward face, an outwardly facing body rear face opposite the body forward face, and opposing side surfaces. A web portion protrudes outwardly from the outwardly facing body forward face. The web portion may have an outwardly facing web forward face and a curvilinear side surface. The web portion may be integral with the main body portion. A plurality of bosses protrude from the web forward face and having a forward facing end. The plurality of bosses may be integral with the main body portion and the web portion. A plunger bore extends through one of the plurality of bosses configured to receive a reciprocating plunger. | 08-01-2013 |
| 20130202457 | PUMP ASSEMBLY INCLUDING FLUID CYLINDER AND TAPERED VALVE SEATS - According to one aspect, a pump assembly includes a fluid cylinder, the fluid cylinder including a fluid passage, the fluid passage defining a tapered internal shoulder of the fluid cylinder, the tapered internal shoulder defining a first angle. A valve controls flow of fluid through the fluid passage. The valve includes a valve seat, which is disposed in the fluid passage and includes a tapered external shoulder, the tapered external shoulder defining a second angle. In one embodiment, the first tapered external shoulder engages the first tapered internal shoulder to distribute and transfer loading. | 08-08-2013 |
| 20130202458 | PUMP FLUID CYLINDER INCLUDING LOAD TRANSFER SHOULDER AND VALVE SEAT FOR SAME - According to one aspect, a pump assembly includes a fluid cylinder, and the fluid cylinder includes a fluid passage that defines a tapered internal shoulder of the fluid cylinder. The tapered internal shoulder defines a first frusto-conical surface. A valve controls flow of fluid through the fluid passage. The valve includes a valve seat, which includes a seat body disposed in the fluid passage, and a bore formed through the seat body and through which fluid flows. The seat body includes inlet and outlet end portions, wherein the fluid flows into the bore at the inlet end portion and flows out of the bore at the outlet end portion. The inlet end portion of the seat body defines a second frusto-conical surface. In one embodiment, the second frusto-conical surface engages the first frusto-conical surface to distribute and transfer loading. | 08-08-2013 |
| 20130216413 | OFFSET VALVE BORE IN A RECIPROCATING PUMP - A fluid end | 08-22-2013 |
| 20140322033 | OFFSET VALVE BORE IN A RECIPROCATING PUMP - A fluid end | 10-30-2014 |
| 20140322034 | OFFSET VALVE BORE FOR A RECIPROCATING PUMP - A fluid end | 10-30-2014 |
