Frank J Garcia

US Patent:

44923627, Jan 8, 1985

Filed:

Nov 26, 1982

Appl. No.:

6/444565

Inventors:

Frank Garcia - Spring TX
David L. Brown - Houston TX

Assignee:

Vetco Offshore, Inc. - Ventura CA

International Classification:

F16K 300

US Classification:

251363

Abstract:

A valve seat (28) having a generally saddle-shaped, eccentric surface (52); a groove (50) of constant depth and width formed in the eccentric surface, having sidewalls (70) perpendicular to the eccentric surface and a base (72) parallel to the eccentric surface; and a flexible O-ring (54) retained by friction within the groove. The groove sidewalls and base have a surface finish in the range of about 32 to 125, which provides sufficient smoothness to retain the O-ring in the required non-planar shape. The valve seat groove (50) can be produced according to the disclosed method, which is preferably implemented in a numerically controlled four-axis horizontal milling tool system. The valve seat part (100) is mounted in a fixture (102) on a rotary table (104) such that the part axis (56) is aligned with the longitudinal axis (Z) of the tool (106). Once the initial penetration position and depth of the tool (106) is established on the eccentric surface (52a) of the part (100), the only required machine movements are table rotation (104) and tool vertical axis movement (Y).

US Patent:

45340960, Aug 13, 1985

Filed:

Oct 17, 1984

Appl. No.:

6/661634

Inventors:

Frank Garcia - Spring TX
David L. Brown - Houston TX

Assignee:

Vetco Offshore, Inc. - Ventura CA

International Classification:

B23Q 500
B23C 305

US Classification:

291571R

Abstract:

A valve seat (28) having a generally saddle-shaped, eccentric surface (52); a groove (50) of constant depth and width formed in the eccentric surface, having sidewalls (70) perpendicular to the eccentric surface and a base (72) parallel to the eccentric surface; and a flexible O-ring (54) retained by friction within the groove. The groove sidewalls and base have a surface finish in the range of about 32 to 125, which provides sufficient smoothness to retain the O-ring in the required non-planar shape. The valve seat groove (50) can be produced according to the disclosed method, which is preferably implemented in a numerically controlled four-axis horizontal milling tool system. The valve seat part (100) is mounted in a fixture (102) on a rotary table (104) such that the part axis (56) is aligned with the longitudinal axis (Z) of the tool (106). Once the initial penetration position and depth of the tool (106) is established on the eccentric surface (52a) of the part (100), the only required machine movements are table rotation (104) and tool vertical axis movement (Y).

Address:

824 County Rd 375, San Antonio, TX 78253

Phone:

8305389610

VIN:

5TFRY5F11CX119703

Make:

TOYOTA

Model:

TUNDRA

Year:

2012

Address:

2230 Lk Louise Dr, San Antonio, TX 78228

VIN:

3FAHP0HAXBR302772

Make:

FORD

Model:

FUSION

Year:

2011

Address:

4510 Wrangler Run, San Antonio, TX 78223

VIN:

4NUDS13S072701154

Make:

ISUZU

Model:

ASCENDER

Year:

2007

Address:

2230 Lk Louise Dr, San Antonio, TX 78228

VIN:

3GNFC16J97G152329

Make:

CHEVROLET

Model:

SUBURBAN

Year:

2007

Address:

1702 Pinn Rd, San Antonio, TX 78227

Phone:

2103208384

VIN:

4UF07ATV67T224075

Make:

Toyota

Model:

Tacoma XtraCab V6 Manual

Year:

2007