IP Library Granted Patent US 9,500,631
Granted Patent B2
US 9,500,631 · App. 14/277,845 · Granted Nov 22, 2016

Device for testing vertical tubes in a chemical reactor

Inventors: Clifford L. Johns (Louisville, KY); Daniel D. Sympson (Louisville, KY)
Assignee: Extundo Incorporated
G01N33/0004B01J8/001B01J8/008B01J8/06B01J19/0073G01L19/083G01L19/086B01J2208/0007B01J2208/00539B01J2208/00584B01J2208/00654B01J2208/00769B01J2208/00805B01J2219/002B01J2219/0024B01J2219/00213
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 9,500,631
App. No.
14/277,845
Granted
Nov 22, 2016
Kind
B2
Abstract

Method for calibrating a device for measuring back pressure in open-ended chemical reactor tubes, comprising the steps of: providing a device for measuring back pressure in open-ended chemical reactor tubes, including a frame member and a plurality of injector tubes mounted on the frame member with a spacing between the injector tubes; providing a test stand, comprising a frame member; a base supporting said frame member; and a plurality of calibration tubes mounted on the frame member, each of said calibration tubes having an open top and a dosed bottom, with a precision orifice in the dosed bottom to simulate the chemical reactor tubes to be tested; inserting the plurality of injector tubes into the respective calibration tubes; sealing between the injector tubes and the calibration tubes; sending gas through the injector tubes and taking a back pressure reading for each of the injector tubes; and generating correction factors for each injector tube to correct for variations in the back pressure readings.

Claims (8)

1. A method for calibrating a device for measuring back pressure in open-ended chemical reactor tubes, comprising the steps of:

providing a device for measuring back pressure in open-ended chemical reactor tubes, including a frame member and a plurality of injector tubes mounted on the frame member with a spacing between the injector tubes;

providing a test stand, comprising a frame member; a base supporting said frame member; and a plurality of calibration tubes mounted on the frame member, each of said calibration tubes having an open top and a closed bottom, with a precision orifice in the closed bottom to simulate the chemical reactor tubes to be tested;

inserting the plurality of injector tubes into the respective calibration tubes;

sealing between the injector tubes and the calibration tubes;

sending gas through the injector tubes and taking a back pressure reading for each of the injector tubes; and

generating correction factors for each injector tube to correct for variations in the back pressure readings.

2. The method for calibrating a device for measuring back pressure in open-ended chemical reactor tubes as recited in claim 1 , and further comprising the step of adjusting the positions of the calibration tubes on the frame member to match the spacing between the injector tubes before inserting the injector tubes into the respective calibration tubes.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 23, 2017
From: EXTUNDO INCORPORATED
To: TUBEMASTER, INC.
Reel/Frame 041695/0069 →
Continuity (7)
Continuation 12201294 · Aug 29, 2008
Division 11244450 · Oct 6, 2005
Division 10800490 · Mar 15, 2004
Continuation In Part 10097908 · Mar 14, 2002
Provisional Application 60276780 · Mar 16, 2001
Provisional Application 60314859 · Aug 24, 2001
Related Publication 20150056100A1 · Feb 26, 2015