IP Library Granted Patent US 7,744,068
Granted Patent B2
US 7,744,068 · App. 11/521,083 · Granted Jun 29, 2010

Insulation for a steam carrying apparatus and method of attachment thereof

Assignee: Dristeem Corporation
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Quick Facts
Patent No.
US 7,744,068
App. No.
11/521,083
Granted
Jun 29, 2010
Kind
B2
Abstract

A steam dispersion system including insulation is disclosed. The steam dispersion system may include a steam dispersion tube with at least one opening defined on an outer surface of the steam dispersion tube and a hollow interior. The insulation covers at least a portion of the steam dispersion tube, the insulation defining an opening aligned with the opening of the steam dispersion tube, wherein the insulation meets 25/50 flame/smoke indexes for UL723/ASTM E-84 and has a thermal conductivity less than about 0.35 Watts/m-K (2.4 in-hr/ft^2 deg F.). A nozzle defining a throughhole may be placed within the opening of the steam dispersion tube, the throughhole being in fluid communication with the hollow interior of the steam dispersion tube to provide a steam exit.

Claims (18)

1. A steam dispersion system comprising:

a steam carrying apparatus; and

an insulation covering at least a portion of the steam carrying apparatus, the insulation including polyvinylidene fluoride.

2. A system according to claim 1 , wherein the polyvinylidene fluoride includes a material selected from the group consisting of ZOTEK® F40HT LS foam, ZOTEK® F30 LS foam, ZOTEK® F38 HT foam, ZOTEK® F74 HT foam, and ZOTEK® F75 HT foam.

3. A system according to claim 1 , wherein the steam carrying apparatus includes a steam dispersion tube with at least one steam delivery point.

4. A system according to claim 3 , wherein the steam dispersion tube includes a wall defining an outer surface, the insulation covering substantially the entire outer surface of the wall.

5. A system according to claim 1 , wherein the insulation meets 25/50 flame/smoke indexes for UL723/ASTM E-84.

6. A system according to claim 1 , wherein the insulation is provided as at least one strip that is attached to the steam carrying apparatus.

7. A steam dispersion system comprising:

a steam dispersion tube including at least one opening defined on an outer surface of the steam dispersion tube communicating with a hollow interior of the steam dispersion tube; and

an insulation covering at least a portion of the steam dispersion tube, the insulation defining an opening aligned with the opening of the steam dispersion tube, the insulation including polyvinylidene fluoride.

8. A system according to claim 7 , wherein the insulation meets 25/50 flame/smoke indexes for UL723/ASTM E-84.

9. A system according to claim 7 , wherein the steam dispersion tube includes a plurality of openings and the insulation includes a plurality of openings aligned with the openings of the steam dispersion tube.

10. A system according to claim 9 , further comprising a plurality of the steam dispersion tubes.

11. A system according to claim 7 , wherein the polyvinylidene fluoride includes a material selected from the group consisting of ZOTEK® F40HT LS foam, ZOTEK® F30 LS foam, ZOTEK® F38 HT foam, ZOTEK® F74 HT foam, and ZOTEK® F75 HT foam.

12. A system according to claim 7 , further comprising a nozzle defining a throughhole placed within the opening of the steam dispersion tube, the throughhole in fluid communication with the hollow interior of the steam dispersion tube, wherein the steam dispersion tube is generally cylindrical in shape and the insulation covers substantially an entirety of an outer surface, an inner surface, or both of the steam dispersion tube.

13. A system according to claim 7 , wherein the insulation meets 25/50 flame/smoke indexes for UL723/ASTM E-84.

14. A system according to claim 7 , wherein the insulation is provided as at least one strip that is attached to the steam dispersion tube.

Assignments (4)
ASSIGNMENT OF PATENT SECURITY AGREEMENT, RECORDED ON OCTOBER 15, 2025 AT REEL/FRAME 73109/0707 Recorded Jul 16, 2026
From: GOLDMAN SACHS BANK USA, AS EXISTING AGENT
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS SUCCESSOR AGENT
Reel/Frame 075998/0444 →
PATENT SECURITY AGREEMENT Recorded Oct 15, 2025
From: RESEARCH PRODUCTS CORPORATION; DRI-STEEM CORPORATION; EWC CONTROLS, LLC
To: GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT
Reel/Frame 073109/0707 →
SECURITY INTEREST Recorded Oct 6, 2025
From: RESEARCH PRODUCTS CORPORATION; DRI-STEEM CORPORATION; EWC CONTROLS, LLC
To: U.S. BANK NATIONAL ASSOCIATION
Reel/Frame 073007/0564 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 14, 2007
From: LUNDGREEN, JAMES MICHAEL; BAIRD, DAVID; HAAG, JOSEPH T.; KIRKWOLD, MARK ALLEN; NUTESON, SCOTT ALLEN
To: DRISTEEM CORPORATION
Reel/Frame 019022/0653 →
Continuity (1)
Related Publication 20080061455A1 · Mar 13, 2008