Barry Gene Jansma

US Patent:

20120234834, Sep 20, 2012

Filed:

Mar 14, 2011

Appl. No.:

13/047278

Inventors:

SAEED A. AKHUND - Cypress TX, US
Jarrod S. Robertson - Cypress TX, US
Michael J. Chiles - The Woodlands TX, US
Barry G. Jansma - Spring TX, US
Steven W. Curry - Spring TX, US
Mark C. Euwer - Richmond TX, US

International Classification:

B65D 45/16

US Classification:

220324

Abstract:

A closure () for sealing fluid within a pressure vessel having a hub () with an opening therein includes a door () and a plurality of clamp ring segments () for fitting over an exterior portion of both the closed door and the hub. A plurality of interconnecting members () connect ends of adjacent clamp ring segments, and an actuator mechanism () moves the plurality of clamp ring segments into and out of engagement with the door.

US Patent:

20190003651, Jan 3, 2019

Filed:

Sep 10, 2018

Appl. No.:

16/126145

Inventors:

- Houston TX, US
Barry G. Jansma - Spring TX, US
Thomas Tuan-Huy Do - Houston TX, US

Assignee:

National Oilwell Varco, L.P. - Houston TX

International Classification:

F17C 13/04
F16J 13/20

Abstract:

A door assembly for a pressure vessel includes a door, a hub to attach to the pressure vessel and to receive the door, and an annular seal to seal between the door and the hub. A hinge arm is coupled to the hub and to the door and is able to pivot relative to the hub about a hinge axis. A door actuator having an elongate member extending along an actuator axis is spaced-apart from the hinge axis and coupled to the hub and to the hinge arm. The elongate member travels with the hinge arm when the arm pivots relative to the hub, and rotates about the actuator axis. The door actuator is configured to cause the seal to engage sealingly the hub and the door.

US Patent:

20180163874, Jun 14, 2018

Filed:

Dec 12, 2016

Appl. No.:

15/375227

Inventors:

- Houston TX, US
Barry G. Jansma - Spring TX, US
Thomas Tuan-Huy Do - Houston TX, US

International Classification:

F16K 1/20
F16K 35/02

Abstract:

A door assembly for a pressure vessel includes a door, a hub for receiving the door, and an annular seal to seal therebetween. A hinge arm is coupled to the hub and to the door and is pivotable relative to the hub about a hinge axis. A door actuator having an elongate member extending along an actuator axis is spaced-apart from the hinge axis and coupled to the hub and to the hinge arm. The elongate member travels with the hinge arm when the arm pivots relative to the hub, and rotates about the actuator axis.