IP Library › Granted Patent US 7,856,716
Granted Patent B2
US 7,856,716 · App. 11/459,846 · Granted Dec 28, 2010

Method for assembling a plurality of tubes to a tubesheet

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Quick Facts
Patent No.
US 7,856,716
App. No.
11/459,846
Granted
Dec 28, 2010
Kind
B2
Abstract

A method for assembling a plurality of tubes to a tubesheet. A first end of each of the tubes is situated over a corresponding support rod that extends from a pattern block of the fixture. A first end of a plurality of locating members is inserted into a second end of each of the tubes such that a second end of the locating member extends from the tube second end. The tubesheet is then slid over the locating members and tubes such that each of a plurality of holes in the tubesheet receive corresponding ones of the tubes.

Claims (17)

1. A method for assembling a plurality of tubes to a tubesheet, the method comprising the steps of:

situating a first end of each of the tubes over a corresponding support rod that extends from a pattern block;

inserting a first end of a plurality of locating members into a second end of each of the tubes such that a second end of each locating member extends from a corresponding tube second end;

connecting a first tubesheet to a first end of a shell;

connecting a second tubesheet to a second end of the cylindrical shell; and

subsequently sliding the first and second tubesheets and shell over the locating members and tubes such that each of the tubes is received by a corresponding hole in each of the first and second tubesheets, and the first and second tubesheets are situated at the first and second ends of the tubes, respectively.

2. The method of claim 1 , further comprising removing the locating members from the second ends of the tubes.

3. The method of claim 1 , further comprising attaching the tubes to the first tubesheet.

4. The method of claim 3 , wherein attaching the tubes to the first tubesheet includes expanding the tubes.

5. The method of claim 1 , further comprising attaching the second tubesheet to the second ends of the tubes.

6. The method of claim 5 , wherein attaching the second tubesheet includes expanding the second ends of the tubes.

7. The method of claim 5 , further comprising removing the tubes from the support rods.

8. The method of claim 7 , further comprising attaching the first tubesheet to the first ends of the tubes.

9. The method of claim 8 , wherein attaching the first tubesheet includes expanding the first ends of the tubes.

10. The method of claim 1 , further comprising attaching the support rods to the pattern block.

11. The method of claim 1 , further comprising locating at least one of the corresponding holes with the second end of a locating member.

12. The method of claim 1 , further comprising supporting at least one tube in a position for assembly using only a corresponding support rod.

Assignments (8)
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 CORPORATION (F/K/A ALBER CORP.); VERTIV IT SYSTEMS, INC. (F/K/A AVOCENT CORPORATION); VERTIV IT SYSTEMS, INC. (F/K/A AVOCENT FREMONT, LLC); VERTIV IT SYSTEMS, INC. (F/K/A AVOCENT HUNTSVILLE, LLC); VERTIV IT SYSTEMS, INC. (F/K/A AVOCENT REDMOND CORP.); ELECTRICAL RELIABILITY SERVICES, INC.; VERTIV CORPORATION (F/K/A EMERSON NETWORK POWER, ENERGY SYSTEMS, NORTH AMERICA, INC.); VERTIV CORPORATION (F/K/A LIEBERT CORPORATION)
Reel/Frame 052065/0666 →
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 Sep 19, 2018
From: LIEBERT CORPORATION
To: VERTIV CORPORATION
Reel/Frame 047110/0573 →
SECURITY AGREEMENT Recorded Dec 2, 2016
From: ALBER CORP.; ASCO POWER TECHNOLOGIES, L.P.; AVOCENT CORPORATION; AVOCENT FREMONT, LLC; AVOCENT HUNTSVILLE, LLC; AVOCENT REDMOND CORP.; ELECTRICAL RELIABILITY SERVICES, INC.; EMERSON NETWORK POWER, ENERGY SYSTEMS, NORTH AMERICA, INC.; LIEBERT CORPORATION; LIEBERT NORTH AMERICA, INC.; NORTHERN TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 040797/0615 →
SECURITY AGREEMENT Recorded Dec 1, 2016
From: ALBER CORP.; ASCO POWER TECHNOLOGIES, L.P.; AVOCENT CORPORATION; AVOCENT FREMONT, LLC; AVOCENT HUNTSVILLE, LLC; AVOCENT REDMOND CORP.; ELECTRICAL RELIABILITY SERVICES, INC.; EMERSON NETWORK POWER, ENERGY SYSTEMS, NORTH AMERICA, INC.; LIEBERT CORPORATION; LIEBERT NORTH AMERICA, INC.; NORTHERN TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 040783/0148 →