Kevin R Lynch

US Patent:

6349588, Feb 26, 2002

Filed:

Mar 20, 2000

Appl. No.:

09/531475

Inventors:

Stuart B. Brown - Needham MA
Christopher L. Muhlstein - Brookline MA
Kevin R. Lynch - Somerville MA
Richard Mlcak - Cambridge MA
Paulo Jorge Furtado Correia - Cambridge MA

Assignee:

Exponent Inc. - Menlo Park CA

International Classification:

G01N 1904

US Classification:

73 37, 73150 A, 73 375

Abstract:

A system and corresponding method for bulge testing films (e. g. thin films, coatings, layers, etc. ) is provided, as well as membrane structures for use in bulge testing and improved methods of manufacturing same so that resulting membrane structures have substantially identical known geometric and responsive characteristics. Arrayed membrane structures, and corresponding methods, are provided in certain embodiments which enable bulge testing of a film(s) over a relatively large surface area via a plurality of different freestanding membrane portions. Improved measurements of film bulging or deflection are obtained by measuring deflection of a center point of a film, relative to non-deflected peripheral points on the film being tested. Furthermore, membrane structures are adhered to mounting structure in an improved manner, and opaque coatings may be applied over top of film(s) to be bulge tested so that a corresponding optical transducer can more easily detect film deflection/bulging. In certain embodiments, a laser triangulation transducer is utilized to measure film deflection/bulging.

US Patent:

63215942, Nov 27, 2001

Filed:

Mar 20, 2000

Appl. No.:

9/531474

Inventors:

Stuart B. Brown - Needham MA
Christopher L. Muhlstein - Brookline MA
Kevin R. Lynch - Somerville MA
Richard Mlcak - Cambridge MA
Paulo Jorge Furtado Correia - Cambridge MA

Assignee:

Exponent, Inc. - CA

International Classification:

G01N 310

US Classification:

73150

Abstract:

A system and corresponding method for bulge testing films (e. g. thin films, coatings, layers, etc. ) is provided, as well as membrane structures for use in bulge testing and improved methods of manufacturing same so that resulting membrane structures have substantially identical known geometric and responsive characteristics. Arrayed membrane structures, and corresponding methods, are provided in certain embodiments which enable bulge testing of a film(s) over a relatively large surface area via a plurality of different freestanding membrane portions. Improved measurements of film bulging or deflection are obtained by measuring deflection of a center point of a film, relative to non-deflected peripheral points on the film being tested. Furthermore, membrane structures are adhered to mounting structure in an improved manner, and opaque coatings may be applied over top of film(s) to be bulge tested so that a corresponding optical transducer can more easily detect film deflection/bulging. In certain embodiments, a laser triangulation transducer is utilized to measure film deflection/bulging.

US Patent:

55956599, Jan 21, 1997

Filed:

Feb 17, 1995

Appl. No.:

8/390672

Inventors:

Ming-Teh Huang - Durham NH
David R. Lambert - Somersworth NH
Robert F. Gatta - Durham NH
Kevin G. Lynch - Hampton NH

Assignee:

Lydall, Inc. - Manchester CT

International Classification:

B01D 3902

US Classification:

2105021

Abstract:

A filter material for removing chlorine from cold water used in preparing a human-consumable beverage having at least one layer of a mat of laid fibers of cellulosic fibers and synthetic textile fibers and mixtures thereof. A synthetic hydrophilic, food-grade latex binder deposited onto the fibers within the mat in an amount sufficient to so bind the fibers together within the mat that during a filtration of cold water through the mat no substantial amount of fibers are displaced therefrom and in an amount insufficient to substantially reduce a gravity flow rate of cold water through the mat to less than about 0. 3 liter per minute per 100 square centimeters of the mat. A water-insoluble chlorine adsorbent or absorbent solid powder disposed on the binder such that no more than 65% of the total outside surface area of the powder is substantially contacted by the binder.