Michael D Marette

US Patent:

20130068092, Mar 21, 2013

Filed:

Nov 15, 2012

Appl. No.:

13/678067

Inventors:

J-MAC TOOL, INC. - Fort Worth TX, US
Michael David Marette - Aledo TX, US

Assignee:

J-MAC TOOL, INC. - Fort Worth TX

International Classification:

F16J 13/00

US Classification:

921692

Abstract:

A dove-tail clamp assembly configured to couple a plunger and a pony rod for operation within a fluid end. The clamp assembly using a flange portion extending from the plunger and the pony rod. A clamp within the clamp assembly engages the flanges in the plunger and the pony rod in a non-threaded relationship to permit the pony rod to induce a reciprocating movement of the plunger within the fluid end. The flange portions may be integrally coupled to the plunger and the pony rod in one embodiment. In another embodiment, the flange portions may be threadedly inserted into existing bores in the plunger and the pony rod. The clamp assembly may include a deflector and an alignment pin.

US Patent:

20180066653, Mar 8, 2018

Filed:

Nov 13, 2017

Appl. No.:

15/810319

Inventors:

- Houston TX, US
Michael David MARETTE - Fort Worth TX, US

International Classification:

F04B 53/16
F16H 57/021

Abstract:

A bearing support design configured to provide increased resistance to deflection of a crankshaft within a power end. The bearing support design is contoured in the shape of a figure eight and provides an increased surface area for supporting the crankshaft and gearing. The support may be integrally formed in the frame plate of the power end or may alternatively be retrofitted into an existing frame plate and thereby be welded in. The power end having a bearing support at each end of the crankshaft.