IP Library Granted Patent US 8,092,729
Granted Patent B2
US 8,092,729 · App. 12/817,721 · Granted Jan 10, 2012

Insulation for a steam carrying apparatus and method of attachment thereof

Assignee: Dristeem Corporation
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Quick Facts
Patent No.
US 8,092,729
App. No.
12/817,721
Granted
Jan 10, 2012
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 (8)

1. A method of attaching insulation to a steam dispersion tube, the method comprising the steps of:

providing a steam dispersion tube including a hollow interior for carrying steam and an outer surface;

providing insulation on at least a portion of the steam dispersion tube; and

creating a hole through the insulation and the steam dispersion tube such that steam carried by the steam dispersion tube can exit out of the steam dispersion tube, wherein the insulation includes polyvinylidene fluoride.

2. A method according to claim 1 , further including the step of placing a nozzle within the created hole, the nozzle extending at least partially into the hollow interior of the steam dispersion tube and defining a throughhole in fluid communication with the hollow interior of the steam dispersion tube for exiting the steam.

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

4. A method 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.

5. A method according to claim 1 , further comprising the step of creating a plurality of the holes through the insulation and the steam dispersion tube after providing the insulation on the steam dispersion tube.

Assignments (3)
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 →
Continuity (2)
Division 11521083 · Sep 13, 2006
Related Publication 20100251548A1 · Oct 7, 2010