Gas separation: processes – Filtering
Patent
1993-06-23
1995-03-07
Spitzer, Robert
Gas separation: processes
Filtering
95285, 55502, 55503, 55511, 55514, B01D 2905
Patent
active
053954297
ABSTRACT:
An improved air diffusion panel, and method of construction and use, is provided which is particularly suitable for use in clean and ultra-clean environments, such as clean rooms and mini-environments facilities. The preferred diffusion panel of the present invention includes a diffusion membrane of a continuous mass of porous polytetrafluoroethylene bonded to one or more support screens of polymer mesh. The composite membrane and screens are mounted in a unique frame which eases the time and effort required for construction of the panels and which can be mounted to reduce vibration of the panel and leakage around its edges. This improved air diffusion panel also significantly filters small and sub-micron particles, resists chemical attack, and blocks liquid droplets.
REFERENCES:
patent: 2172771 (1939-09-01), Norris
patent: 2692654 (1954-10-01), Pryor
patent: 2795290 (1957-06-01), Butsch et al.
patent: 2812038 (1957-11-01), Krueger
patent: 3003581 (1961-10-01), Greason
patent: 3032868 (1962-05-01), Billner
patent: 3154393 (1964-10-01), Klein et al.
patent: 3220915 (1965-11-01), Shannon
patent: 3252400 (1966-05-01), Madl, Jr.
patent: 3277638 (1966-10-01), Soltis
patent: 3403614 (1968-10-01), Carnes
patent: 3418915 (1968-12-01), Marble
patent: 3502530 (1970-03-01), Adams et al.
patent: 3631654 (1972-01-01), Riely et al.
patent: 3668837 (1972-06-01), Gross
patent: 3782082 (1974-01-01), Smith et al.
patent: 3903660 (1975-09-01), Akins
patent: 3975995 (1976-08-01), Shuler
patent: 4031283 (1977-06-01), Fagan
patent: 4060025 (1977-11-01), Pelosi, Jr.
patent: 4088463 (1978-05-01), Smith
patent: 4094232 (1978-06-01), Howorth
patent: 4177149 (1979-12-01), Rosenberg
patent: 4178159 (1979-12-01), Fecteau
patent: 4190426 (1980-02-01), Ruschke
patent: 4267769 (1981-05-01), Davis et al.
patent: 4277267 (1981-07-01), Posner
patent: 4340402 (1982-07-01), Catron
patent: 4404006 (1983-09-01), Williams et al.
patent: 4409889 (1983-10-01), Burleson
patent: 4427427 (1984-01-01), DeVecchi
patent: 4527724 (1986-02-01), Rosenberg et al.
patent: 4554766 (1985-11-01), Ziemer et al.
patent: 4603618 (1986-08-01), Soltis
patent: 4853013 (1989-08-01), Rio et al.
patent: 4929262 (1990-05-01), Balon, Jr. et al.
patent: 4953333 (1990-09-01), Carlson
patent: 4961764 (1990-10-01), Develle et al.
patent: 5019140 (1991-05-01), Bowser et al.
patent: 5029518 (1991-07-01), Austin
patent: 5053064 (1991-10-01), Hama et al.
patent: 5057217 (1991-10-01), Lutz et al.
patent: 5096473 (1992-03-01), Sassa et al.
patent: 5108474 (1992-04-01), Riedy et al.
Abstract: "Laminar Air Flow For Contamination Control In the Cleanroom," Lepco, Inc.; Oct. 1990.
Abstract: "Multi-Zone Cleanroom at Honeywell Optoelectronics"; Lepco, Inc.; Apr. 1990.
Abstract: "Energy Efficiency in Clean Rooms," Lepco, Inc., Sep. 1991.
Airo Clean Engineering Inc. Apr. 1991 Subject: Clean Rooms, 9 page brochure.
ASTM D737-75 Standard Test Method for Air Permeability of Textile Fabrics, pp. 219-221; Date: Unknown.
Instruction Manual: Mode AS1100 High Volume Stack Sampler Operation Manual; CS.sub.3, Inc.; Aug. 12, 1993.
Literature: Cascase Stack Sampling Systems; CS.sub.3, Inc.; Date: Unknown; ASTM D-4536.
Literature: "Avoid Turbulence"; Lepco Incorporated; Subject: Lepco's Membrane Diffusion System, Date: Unknown.
Catalog Literature of Various Air Filters (Catalog Numbers and Prices); attached literature of products available from various manufacturers through McMaster-Carr.
George Nelson A.
McKenna Douglas
Sutsko Michael G.
Johns David J.
Spitzer Robert
W. L. Gore & Associates, Inc.
LandOfFree
Diffusion panel for use in ultra-clean environments and method f does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Diffusion panel for use in ultra-clean environments and method f, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diffusion panel for use in ultra-clean environments and method f will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1403574