IP Library › Granted Patent US 8,092,730
Granted Patent B2
US 8,092,730 · App. 12/095,775 · Granted Jan 10, 2012

Molded rotatable base for a porous pad

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Quick Facts
Patent No.
US 8,092,730
App. No.
12/095,775
Granted
Jan 10, 2012
Kind
B2
Abstract

A rotatable base for a porous pad has openings that provide for improved flow distribution of a liquid in the base across a substrate. The rotatable base can be molded from a two piece mold and the openings can have draft angles to facilitate the molding process.

Claims (4)

1. A method comprising:

molding a rotatable base from a moldable thermoplastic material comprising a blowing agent with a mold, said mold having one or more mold plates and said mold plates having one or more mold pins to form one or more openings in the surface of the rotatable base, said rotatable base has a first end, a second end, an inner surface and an outer surface; the inner and outer surfaces of the base interconnected by said one or more openings, said openings distribute a liquid from the inner surface of the rotatable base to the outer surface of the rotatable base, said mold pins have an axis substantially parallel to a separation axis of each said mold plate.

2. The method of claim 1 where the molding is an injection molding process.

3. The method of claim 1 where the one or more rotatable base openings include draft angles.

Assignments (11)
SECURITY INTEREST Recorded Jul 8, 2022
From: ENTEGRIS, INC.; ENTEGRIS GP, INC.; POCO GRAPHITE, INC.; CMC MATERIALS, INC.; INTERNATIONAL TEST SOLUTIONS, LLC; QED TECHNOLOGIES INTERNATIONAL, INC.
To: TRUIST BANK, AS NOTES COLLATERAL AGENT
Reel/Frame 060613/0072 →
ASSIGNMENT OF PATENT SECURITY INTEREST RECORDED AT REEL/FRAME 048811/0679 Recorded Nov 5, 2019
From: GOLDMAN SACHS BANK USA
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 050965/0035 →
SECURITY INTEREST Recorded Nov 13, 2018
From: ENTEGRIS, INC.; SAES PURE GAS, INC.
To: GOLDMAN SACHS BANK USA
Reel/Frame 048811/0679 →
RELEASE OF SECURITY INTEREST Recorded Nov 8, 2018
From: GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT
To: ENTEGRIS, INC.; POCO GRAPHITE, INC.; ATMI, INC.; ATMI PACKAGING, INC.; ADVANCED TECHNOLOGY MATERIALS, INC.
Reel/Frame 047477/0151 →
RELEASE OF SECURITY INTEREST Recorded Nov 8, 2018
From: GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT
To: ENTEGRIS, INC.; POCO GRAPHITE, INC.; ATMI, INC.; ATMI PACKAGING, INC.; ADVANCED TECHNOLOGY MATERIALS, INC.
Reel/Frame 047477/0032 →
SECURITY INTEREST Recorded May 2, 2014
From: ENTEGRIS, INC.; POCO GRAPHITE, INC.; ATMI, INC.; ADVANCED TECHNOLOGY MATERIALS, INC.; ATMI PACKAGING, INC.
To: GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT
Reel/Frame 032812/0192 →
SECURITY INTEREST Recorded May 1, 2014
From: ENTEGRIS, INC.; POCO GRAPHITE, INC.; ATMI, INC.; ADVANCED TECHNOLOGY MATERIALS, INC.; ATMI PACKAGING, INC.
To: GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT
Reel/Frame 032815/0852 →
CHANGE OF ADDRESS Recorded Sep 28, 2011
From: ENTEGRIS, INC.
To: ENTEGRIS, INC.
Reel/Frame 026981/0798 →
RELEASE OF SECURITY INTEREST Recorded Aug 17, 2011
From: WELLS FARGO BANK NATIONAL ASSOCIATION
To: ENTEGRIS, INC.
Reel/Frame 026764/0880 →
SECURITY AGREEMENT Recorded Mar 9, 2009
From: ENTEGRIS, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 022354/0784 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 12, 2008
From: WARGO, CHRISTOPHER; LEBLANC, THOMAS
To: ENTEGRIS, INC.
Reel/Frame 021083/0401 →