IP Library Granted Patent US 7,344,363
Granted Patent B2
US 7,344,363 · App. 11/111,520 · Granted Mar 18, 2008

Remedies to prevent cracking in a liquid system

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Quick Facts
Patent No.
US 7,344,363
App. No.
11/111,520
Granted
Mar 18, 2008
Kind
B2
Abstract

A liquid cooling system utilizing minimal size and volume enclosures, air pockets, compressible objects, and flexible objects is provided to protect against expansion of water-based solutions when frozen. In such a system, pipes, pumps, and heat exchangers are designed to prevent cracking of their enclosures and chambers. Also described are methods of preventing cracking in a liquid cooling system. In all these cases, the system must be designed to tolerate expansion when water is frozen.

Claims (33)

1. An apparatus for preventing cracking of a liquid system, comprising:

a housing for holding liquid having at least one inlet chamber and at least one outlet chamber structure separate from the at least one inlet chamber; and

at least one flexible object coupled to form a portion of at least one wall of the inlet and outlet chambers such that pressure exerted on the flexible object increases a volume of the housing; wherein at least a remaining portion of the at least one wall of the inlet chamber and the outlet chamber is rigid.

2. The apparatus of claim 1 , wherein the flexible object accommodates a predetermined level of fluid expansion.

3. The apparatus of claim 2 , wherein the predetermined level of fluid expansion is between 5 to 25 percent.

4. The apparatus of claim 1 , wherein the flexible object being capable of contracting and expanding between a minimum volume condition and a maximum volume condition.

5. The apparatus of claim 1 , wherein the flexible object being secured within the inlet and outlet chambers.

6. The apparatus of claim 1 , wherein the flexible object is made of one of the following: rubber, plastic or foam.

7. A method of preventing cracking of a liquid system, the method comprising the steps of:

providing a housing for holding liquid having at least one inlet chamber and at least one outlet chamber separate from the at least one inlet chamber; and

disposing at least one flexible object to form a portion of at least one of the inlet and outlet chambers, a remaining portion of said chamber being rigid, such that pressure exerted on the flexible object increases a volume of the housing, the flexible objects accommodating a predetermined level of fluid expansion.

8. The method of claim 7 , wherein the predetermined level of fluid expansion is between 5 to 25 percent.

9. The method of claim 7 , wherein the flexible object being capable of contracting and expanding between a minimum volume condition and a maximum volume condition.

10. The method of claim 7 , wherein the flexible object is made of one of the following: rubber, plastic or foam.

11. An apparatus for preventing cracking in a pump, comprising:

a housing having at least one inlet chamber and at least one outlet chamber separate from the at least one inlet chamber; and

a plurality of spaced apart flexible objects coupled to form a portion of at least one wall of the housing such that pressure exerted on the plurality of spaced apart flexible objects increases a volume of the housing.

12. The apparatus of claim 11 , wherein the flexible objects accommodate a predetermined level of fluid expansion.

13. The apparatus of claim 12 , wherein the predetermined level of fluid expansion is between 5 to 25 percent.

14. The apparatus of claim 11 , wherein the flexible objects being capable of contracting and expanding between a minimum volume condition and a maximum volume condition.

15. The apparatus of claim 11 , wherein the pump is electro-osmotic.

16. The apparatus of claim 11 , wherein the flexible objects are made of elastomer hinges.

17. The apparatus of claim 11 , wherein the flexible objects are made of one of the following: plastic, rubber, or foam.

18. The apparatus of claim 11 , wherein the flexible objects are fastened to rigid plates of the housing.

19. A method of preventing cracking in a pump, the method comprising the steps of:

providing a housing having at least one inlet chamber and at least one outlet chamber separate from the at least one inlet chamber; and

disposing a plurality of spaced apart flexible objects to form at least one wall of the housing such that pressure exerted on the plurality of spaced apart flexible objects increase a volume of the housing, the plurality of spaced apart flexible objects accommodating a predetermined level of fluid expansion.

20. The method of claim 19 , wherein the predetermined level of fluid expansion is between 5 to 25 percent.

21. The method of claim 19 , wherein the flexible objects being capable of contracting and expanding between a minimum volume condition and a maximum volume condition.

22. The method of claim 19 , wherein the pump is electro-osmotic.

23. The method of claim 19 , wherein the flexible objects are made of elastomer hinges.

24. The method of claim 19 , wherein the flexible objects are made of one of the following: plastic, rubber or foam.

25. The method of claim 19 , wherein the flexible objects are fastened to rigid plates of the housing.

Assignments (9)
SECURITY INTEREST Recorded Oct 26, 2021
From: VERTIV CORPORATION; VERTIV IT SYSTEMS, INC.; ELECTRICAL RELIABILITY SERVICES, INC.; ENERGY LABS, INC.
To: UMB BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 057923/0782 →
SECURITY AGREEMENT Recorded Mar 3, 2020
From: ELECTRICAL RELIABILITY SERVICES, INC.; ENERGY LABS, INC.; VERTIV CORPORATION; VERTIV IT SYSTEMS, INC.
To: CITIBANK, N.A.
Reel/Frame 052076/0874 →
RELEASE OF SECURITY INTEREST Recorded Mar 2, 2020
From: JPMORGAN CHASE BANK, N.A.
To: VERTIV IT SYSTEMS, INC. (F/K/A AVOCENT CORPORATION); VERTIV IT SYSTEMS, INC. (F/K/A AVOCENT HUNTSVILLE, LLC); VERTIV IT SYSTEMS, INC. (F/K/A AVOCENT REDMOND CORP.); VERTIV CORPORATION (F/K/A EMERSON NETWORK POWER, ENERGY SYSTEMS, NORTH AMERICA, INC.); VERTIV CORPORATION (F/K/A LIEBERT CORPORATION); VERTIV IT SYSTEMS, INC. (F/K/A AVOCENT FREMONT, LLC)
Reel/Frame 052065/0757 →
RELEASE OF SECURITY INTEREST Recorded Mar 2, 2020
From: THE BANK OF NEW YORK MELLON TRUST COMPANY N.A.
To: VERTIV CORPORATION; VERTIV IT SYSTEMS, INC.; ELECTRICAL RELIABILITY SERVICES, INC.
Reel/Frame 052071/0913 →
SECOND LIEN SECURITY AGREEMENT Recorded Jun 10, 2019
From: VERTIV IT SYSTEMS, INC.; VERTIV CORPORATION; VERTIV NORTH AMERICA, INC.; ELECTRICAL RELIABILITY SERVICES, INC.; VERTIV ENERGY SYSTEMS, INC.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 049415/0262 →
CHANGE OF NAME Recorded Dec 7, 2018
From: LIEBERT CORPORATION
To: VERTIV CORPORATION
Reel/Frame 047749/0820 →
ABL SECURITY AGREEMENT Recorded Mar 6, 2017
From: ASCO POWER TECHNOLOGIES, L.P.; AVOCENT CORPORATION; AVOCENT FREMONT, LLC; AVOCENT HUNTSVILLE, LLC; AVOCENT REDMOND CORP.; EMERSON NETWORK POWER, ENERGY SYSTEMS, NORTH AMERICA, INC.; LIEBERT CORPORATION; LIEBERT NORTH AMERICA, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 041941/0363 →
SECURITY AGREEMENT Recorded Mar 2, 2017
From: ASCO POWER TECHNOLOGIES, L.P.; AVOCENT CORPORATION; AVOCENT FREMONT, LLC; AVOCENT HUNTSVILLE, LLC; AVOCENT REDMOND CORP.; EMERSON NETWORK POWER, ENERGY SYSTEMS, NORTH AMERICA, INC.; LIEBERT CORPORATION; LIEBERT NORTH AMERICA, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 041944/0892 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 7, 2016
From: COOLIGY, INC.
To: LIEBERT CORPORATION
Reel/Frame 040593/0364 →