Van H Tran

US Patent:

60799595, Jun 27, 2000

Filed:

Apr 16, 1998

Appl. No.:

9/061499

Inventors:

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

Assignee:

Saint-Gobain Performance Plastics Corporation - Wayne NJ

International Classification:

F09B 3500
F09B 2304

US Classification:

417393

Abstract:

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.

US Patent:

20170314712, Nov 2, 2017

Filed:

Apr 26, 2017

Appl. No.:

15/497480

Inventors:

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

International Classification:

F16L 19/025

Abstract:

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.