Chemfab Corporation

Chemical Fabrics Corporation

Keith G Koerber

John A Effenberger

James M McMartin

Michael N Latorra

Francis M Enzien

E C Lupton, Jr

John Walter Verbicky, Jr

J George Drobny

John V Petriello

Frank M Keese

Christopher M Comeaux

Michael P Cushman

Milton B Punnett

A fluid diffuser and a method for diffusing fluid are provided. In one preferred embodiment, the diffuser comprises a frame adapted to be connected to the end of fluid supply duct. Mounted within the frame is a pore-containing web. The web redirects fluid passing through the pores by changing the direction of the fluid upon exiting the web. Prescribed portions of the web can be blocked to expel fluid preferentially in one direction and expel fluid less in other directions. Other means for controlling the direction and flow of fluid upon exiting the web are provided, including changing the angle of fluid supply to the web, and placing a vane at the entrance to the web.

Pore-containing web for diffusing fluids

A composite of thermally non-adherent fluoropolymeric and non-fluoropolymeric components is created through the agency of a non-woven, fibrous binder interposed between and portionally embedded into both components. The fibers of the non-woven binder have a substantial portion of their length extending into both components and cross the interface at an angle that is substantially normal to the plane of embedment. The composite possesses good peel-adhesion behavior between the otherwise thermally non-adherent components.

Composites of fluropolymers with thermally non-adherent non-fluoropolymers

A molded plastic air diffusing screen in an air supply system provided for effectively diffusing or deflecting air supplied through a coreless or vane-free duct such that undesirable air turbulence and draft/currents are substantially diminished; more particularly, the novel plastic screen diffuser minimizes noise emanating from the penetrating air supply.

Molded polymer air diffusing screen

A fabric air diffuser and a method for diffusing air are provided. The diffuser comprises a frame adapted to be connected to the end of an air supply duct. Mounted within the frame is a flat, open-weave, fabric sheet. The fabric sheet redirects and scatters air passing through the openings in the weave by changing the direction of the air upon exiting the sheet.

Fabric air diffuser, method for diffusing air, and method for

A composite of thermally non-adherent fluoropolymeric and non-fluoropolymeric components is created through the agency of a non-woven, fibrous binder interposed between and portionally embedded into both components. The fibers of the non-woven binder have a substantial portion of their length extending into both components and cross the interface at an angle that is substantially normal to the plane of embedment. The composite possesses good peel strengths of greater than 5 pounds/linear inch between the otherwise thermally non-adherent components.

Composites of fluoropolymers with thermally non-adherent

A fabric air diffuser and a method for diffusing air comprises a frame adapted to be connected to the end of an air supply duct. Mounted within the frame is a flat, open-weave, fabric sheet. The fabric sheet redirects and scatters air passing through the openings in the weave by changing the direction and velocity of the air upon exiting the sheet.

A flexible, reinforced textile composite material for constructing tensioned fabric structures, e.g. for sheltering from the outdoor environment, is disclosed. The material has a hydrophobic protective film element laminated to the textile composite material to provide enhanced hydrophobicity. In a preferred embodiment, of the invention, one or a mixture of colorants, dyestuffs or biological agents are incorporated into the hydrophobic protective film layer. The textile composite material has particular application as a tensioned architectural element for forming a dome, roof or the like, or as an electromagnetic window or a radome.

Composite materials for structural end uses

A multi-layer film of improved adhesive strength and other properties is made by combining a layer of polyimide and one or more layers of fluoropolymer selected from the group consisting of PTFE, thermally compatible TFE copolymers, blends thereof, PVF.sub.2, thermally compatible VF.sub.2 copolymers, blends thereof, PCTFE, thermally compatible CTFE copolymers, and blends thereof. It has been found that the peel adhesion between the polyimide layer and any fluoropolymer layer is greatly improved over known products. Laminated composites of improved adhesion and cohesion are made using such a multi-layer film and at least one fluoropolymer film. The fluoropolymer film is thermally weldable to the polyimide film.

Polyimide and fluoropolymer containing films and laminates

Dispersion polymerized PTFE itself, if provided in an unfused state, is sufficiently capable of acting as a pressure sensitive adhesive to facilitate the formation of an initial mechanical bond between components of a laminate such that it may be subsequently heat treated in a relatively short period of time to produce a well-bonded final laminate. This fact makes it possible to prepare a laminate comprising at least one layer containing PTFE by the steps of:

Method of making laminated PTFE-containing composites and products

A method is provided for preparation of a fluoro-polymeric film on a carrier, covering:

Method for manufacturing of cast films at high productivity

A method is provided for preparation of a fluoropolymeric film on a carrier, comprising:

Growing community of inventors

Goffstown, NH, United States of America

Keith G Koerber