IP Library Granted Patent US 7,850,924
Granted Patent B2
US 7,850,924 · App. 10/152,021 · Granted Dec 14, 2010

User notification of tank type for trigas (CO

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Quick Facts
Patent No.
US 7,850,924
App. No.
10/152,021
Granted
Dec 14, 2010
Kind
B2
Abstract

An apparatus for notifying a user which gas tank(s) to connect to an enclosed chamber such as an incubator. The user inputs the desired setpoints for gasses such as O 2 and CO 2 , and the corresponding gas level is determined. The determined gas level is compared with the setpoint of the gas and can display, which gas tank(s) should be hooked up to chamber.

Claims (30)

1. A notification apparatus for an enclosed chamber, comprising:

a setpoint setter that sets a setpoint threshold concentration for a first gas and a second gas, the first gas and the second gas being different gases;

a gas concentration evaluator that executes an algorithm that calculates a concentration for the second gas based on the setpoint threshold concentration of the first gas;

a gas concentration comparator that calculates if the concentration of the second gas calculated by the evaluator meets the setpoint threshold concentration of the second gas; and

an indicator that indicates whether the determined concentration of the second gas for the enclosed chamber as calculated by the evaluator and the comparator meets the setpoint threshold concentration of the second gas, wherein the setter, evaluator, comparator and indicator are in communication with each other.

2. The notification apparatus of claim 1 , wherein a user sets the setpoint threshold concentration for the first gas and second gas using an interface of the setpoint setter.

3. The notification apparatus of claim 1 , further comprising the first gas, wherein the first gas is selected from a group consisting of CO 2 , O 2 , and N 2 .

4. The notification apparatus of claim 1 , further comprising the second gas, wherein the second gas is selected from a group consisting of CO 2 , O 2 , and N 2 .

5. The notification apparatus of claim 1 , wherein the evaluator calculates the concentration of the second gas using an algorithm that comprises a formula y=−0.297x +20.85.

6. The notification apparatus of claim 5 , wherein y is O 2 % concentration and x is CO 2 % setpoint.

7. The notification apparatus of claim 1 , wherein the evaluator determines the concentration of the second gas using an algorithm that comprises a formula y=−0.209x+20.9.

8. The notification apparatus of claim 7 , wherein y is O 2 % concentration and x is CO 2 % setpoint.

9. The notification apparatus of claim 1 , wherein the gas concentration comparator determines if the determined concentration of the second gas is higher, lower, or equal to the setpoint threshold of the second gas.

10. The notification apparatus of claim 1 , wherein the indicator is a visual indicator.

11. The notification apparatus of claim 1 , wherein the indicator is an audible indicator.

12. The notification apparatus of claim 1 , wherein the indicator notifies a user that a gas tank needs to be connected to the chamber.

13. A notification system for an enclosed chamber comprising:

means for setting setpoints for a concentration of a first gas and a concentration of a second gas, the first gas and the second gas being different gases;

means for evaluating the concentration of the second gas with respect to the concentration of the first gas using an algorithm based on setpoints set for the first and second gas communicated to the means for evaluating the concentration of the second gas from the means for setting setpoints;

means for comparing the evaluated concentration of the second gas to the setpoint concentration of the second gas based on the concentration determined by the means for evaluating and communicated to the means for comparing; and

means for indicating the concentration of the second gas to the user as determined by the means for comparing and communicated from the means for comparing to the means for indicating.

14. The notification system of claim 13 , wherein the means for setting is a user interface.

15. The notification system of claim 13 , further comprising the first gas, wherein the first gas is selected from a group consisting of CO 2 , O 2 , and N 2 .

16. The notification system of claim 14 , further comprising the second gas, wherein the second gas is selected from a group consisting of CO 2 , O 2 , and N 2 .

17. The notification system of claim 13 , wherein the means for comparing compares if the evaluated concentration of the second gas is higher lower or equal to than the setpoint threshold of the second gas.

18. The notification system of claim 13 , wherein the means for indicating notifies the user that a gas tank needs to be connected to the chamber.

19. The notification apparatus of claim 1 , wherein the setpoint setter comprises a data entry keypad.

20. The notification apparatus of claim 11 , wherein the audible indicator provides a predetermined sound for a particular tank of gas.

21. The notification apparatus of claim 1 , wherein information from the setpoint setter related to the setpoint threshold concentration of the first gas is communicated to the evaluator and information related to the setpoint threshold concentration of the second gas is communicated to the comparator.

22. The notification apparatus of claim 1 , wherein information from the comparator is communicated to the indicator, such that the indicator indicates when the determined concentration of the second gas meets the setpoint threshold concentration of the second gas.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 8, 2009
From: KENDRO LABORATORY PRODUCTS, INC.
To: GSLE DEVELOPMENT CORPORATION
Reel/Frame 022074/0300 →
CHANGE OF NAME Recorded Jan 8, 2009
From: THERMO ELECTRON CORPORATION
To: THERMO FISHER SCIENTIFIC INC.
Reel/Frame 022074/0387 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE PREVIOUSLY RECORDED ON REEL 012926 FRAME 0524. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNEE SHOULD BE KENDRO LABORATORY PRODUCTS, INC.. Recorded Dec 22, 2008
From: BAIR, III, RICHARD H.; ELWOOD, BRYAN M.
To: KENDRO LABORATORY PRODUCTS, INC.
Reel/Frame 022018/0597 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 18, 2006
From: GSLE DEVELOPMENT CORPORATION
To: THERMO ELECTRON CORPORATION
Reel/Frame 018224/0364 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 22, 2002
From: BAIR, RICHARD H. III; ELWOOD, BRYAN M.
To: KENDRO PRODUCTS
Reel/Frame 012926/0524 →