Van K Tran

60799595, Jun 27, 2000

Apr 16, 1998

9/061499

Kenji A. Kingsford - Devore CA
Anthony K. T. Chan - San Gabriel CA
David L. Henderson - Highland CA
Van Trong Tran - Diamond Bar CA
David R. Martinez - Corona CA

Saint-Gobain Performance Plastics Corporation - Wayne NJ

F09B 3500
F09B 2304

417393

Pumps of this invention comprise a pump housing having at least one pressurizing chamber disposed therein, and a pressurizing member is disposed within the pressurizing chamber. The pressurizing member has a body with a solid imperforate head at one end, a thin-walled skirt extending away from the body head, and a flange extends circumferentially around a terminal edge of the skirt. A piston is disposed within the pump housing and is connected at one end to the pressurizing member. A piston gland is attached to the chamber and includes a diametrically positioned piston guide through which the piston is disposed. The flange is interposed between the chamber and the piston gland and includes sealing means to provide a fluid-tight seal therebetween. A pressurizing member plug is attached to the pressurizing member and has an outside wall surface that contacts and carries a variable portion of the skirt inside surface during reciprocating pressurizing member axial displacement. The thin-wall skirt has a sufficient axial length to roll between the plug outside wall surface and the gland inside diameter to permit pressurizing member reciprocating axial displacement within the pressurizing chamber.

20170314712, Nov 2, 2017

Apr 26, 2017

15/497480

- Solon OH, US
Van Trong TRAN - Irvine CA, US

F16L 19/025

A fluid transport coupling subcomponent can include a body having a first axial end with a first axial face, a second axial end, and a hollow conduit extending between the first and second axial ends, a tongue extending longitudinally from the first axial face; and a groove recessed into the first axial face. The tongue can extend a distance, D, from the first axial face and the groove can extend a distance, D, into the body from the planar face, where Dand Dcan be different.