IP Library Granted Patent US 7,201,214
Granted Patent B2
US 7,201,214 · App. 11/111,535 · Granted Apr 10, 2007

Remedies to prevent cracking in a liquid system

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Quick Facts
Patent No.
US 7,201,214
App. No.
11/111,535
Granted
Apr 10, 2007
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 (14)

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

at least one heat exchanger having a top element and a bottom element, wherein the bottom element comprises a heat transfer element;

a plurality of channels and passages formed within the bottom element to provide flow of a fluid therethrough such that heat is transferred between the bottom element and the fluid; and

one or more compressible objects positioned within one or more of the channels and passages such that the one or more compressible objects form a seal between the one or more channels and the top element, wherein in an uncompressed state the compressible objects reduce a volume of each of the channels and passages having compressible objects and further wherein under pressure exerted within the channels and passages the compressible objects are compressed to increase the volume of each of the channels and passages.

2. The apparatus of claim 1 , wherein the compressible objects accommodate 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 compressible objects being capable of contracting and expanding between a minimum volume and a maximum volume.

5. The apparatus of claim 1 , wherein the compressible objects being positioned with a portion of the top element.

6. The apparatus of claim 1 , wherein the compressible objects are made of one of the following: sponge, foam, air-filled bubbles, or balloons.

7. The apparatus of claim 1 , wherein the compressible objects are encapsulated in a gas or liquid impermeable package.

8. The apparatus of claim 7 , wherein the package is formed of metallic barrier material or metallized plastic sheet material.

9. The apparatus of claim 7 , wherein the package has a hydrophilic surface or coating.

10. The apparatus of claim 7 , wherein the package is formed of plastic material.

11. The apparatus of claim 10 , wherein the plastic material is selected from the group consisting of teflon, mylar, PET, PEN, and PVC.

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 →