IP Library › Patent Application 12316775
Patent Application
App. No. 12/316,775

Iris damper

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Quick Facts
Patent No.
US None
App. No.
12/316,775
Abstract

An iris damper comprising a housing, a plurality of iris blades moveable to open and close the damper, and the plurality of iris blades comprising a first cooperating pair of iris blades, each iris blade of the first cooperating pair having a linear edge which is cooperatively contactable along a predetermined length (L) with an opposing linear edge of the other iris blade in order to form a substantially gas tight seal between the first pair linear edges when the iris damper is closed.

Claims (8)

1 . An iris damper comprising:

a housing;

a plurality of iris blades moveable to open and close the damper; and

the plurality of iris blades comprising a first cooperating pair of iris blades ( 1 , 4 ), each iris blade of the first cooperating pair having a linear edge ( 100 , 400 ) which is cooperatively contactable along a predetermined length (L) with an opposing linear edge of the other iris blade in order to form a substantially gas tight seal between the linear edges when the iris damper is closed.

2 . The iris damper as in claim 1 , wherein the iris damper comprises six iris blades.

3 . The iris damper as in claim 1 , where in the iris blades comprise a second cooperating pair of iris blades, each iris blade of the second cooperating pair moveable into proximity while remaining separated by a distance equal to or greater than the length (L) when the iris damper is closed.

4 . The iris damper as in claim 3 , wherein the iris blades comprise a third cooperating pair of iris blades, each iris blade of the third pair moveable into proximity while remaining separated by a predetermined distance when the iris damper is closed.

5 . The iris damper as in claim 4 , wherein each iris blade of the third cooperating pair of iris blades comprises an arcuate edge, each arcuate edge facing the other when the iris damper is closed.

Assignments (5)
RELEASE OF SECURITY INTEREST AT REEL/FRAME 025560/0057 Recorded Nov 9, 2012
From: WILMINGTON TRUST, NATIONAL ASSOCIATION, SUCCESSOR BY MERGER TO WILMINGTON TRUST FSB
To: AIR SYSTEM COMPONENTS, INC.; HART & COOLEY, INC.; RUSKIN COMPANY; SELKIRK CORPORATION; EASTERN SHEET METAL, INC.; TOMKINS INDUSTRIES, INC.
Reel/Frame 029275/0096 →
RELEASE OF SECURITY INTEREST AT REEL/FRAME 025549/0407 Recorded Nov 9, 2012
From: CITICORP USA, INC.
To: AIR SYSTEM COMPONENTS, INC.; HART & COOLEY, INC.; RUSKIN COMPANY; SELKIRK CORPORATION; EASTERN SHEET METAL INC.; TOMKINS INDUSTRIES, INC.
Reel/Frame 029275/0110 →
SECOND LIEN NOTES PATENT SECURITY AGREEMENT Recorded Dec 30, 2010
From: AIR SYSTEM COMPONENTS, INC.; AQUATIC CO.; DEXTER AXLE COMPANY; EASTERN SHEET METAL, INC.; EPICOR INDUSTRIES, INC.; THE GATES CORPORATION; GATES MECTROL, INC.; HART & COOLEY, INC.; RUSKIN COMPANY; SCHRADER-BRIDGEPORT INTERNATIONAL, INC.; SCHRADER ELECTRONICS, INC.; SELKIRK CORPORATION; TOMKINS INDUSTRIES, INC.; EIFELER MASCHINENBAU GMBH
To: WILMINGTON TRUST FSB, AS COLLATERAL AGENT
Reel/Frame 025560/0057 →
SECURITY AGREEMENT Recorded Dec 29, 2010
From: AIR SYSTEM COMPONENTS, INC.; AQUATIC CO.; DEXTER AXLE COMPANY; EASTERN SHEET METAL, INC.; EPICOR INDUSTRIES, INC.; THE GATES CORPORATION; GATES MECTROL, INC.; HART & COOLEY, INC.; RUSKIN COMPANY; SCHRADER-BRIDGEPORT INTERNATIONAL, INC.; SCHRADER ELECTRONICS, INC.; SELKIRK CORPORATION; TOMKINS INDUSTRIES, INC.; EIFELER MASCHINENBAU GMBH
To: CITICORP USA, INC., AS COLLATERAL AGENT
Reel/Frame 025549/0407 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 5, 2009
From: KOOP; EDWARD N.
To: RUSKIN COMPANY
Reel/Frame 022054/0632 →