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US 8,281,673 B2Granted
Permeable-wall sample holder and related methods
AssigneePerkinElmer Health Sciences, Inc.
InventorKevin Peter Menard
Life of this patent
Estimating the term…
Abstract
A permeable-wall sample holder provides ventilation of vapor-phase entities between the sample and the exterior of the holder through its wall. The vapor-phase transport across the holder wall supports equilibrium of the sample with the analysis environment.
Claims25
A method of investigating a material, the method comprising:
- providing a sample of the material;
- placing the sample on a first face of a holder comprised of the first face and a second face, each face having a plurality of perforations through which a vapor-phase entity passes, but condensed-phase material from the sample does not pass;
- bending the second face to about 0° over the first face to form a holder with a compartment that substantially encloses the sample placed on the first face to produce a specimen;
- disposing the specimen in an analysis environment;
- causing the specimen to undergo a mechanical oscillatory deformation;
- providing essentially uniform ventilation of the vapor-phase entity throughout the sample via the first and second faces of the holder;
- determining the stresses and corresponding strains undergone by the specimen during the mechanical oscillatory deformation.
4 more elements
A sample holder adapted to hold a sample comprising condensed-phase material during investigation by dynamic mechanical analysis, the sample holder comprising:
- a first vapor-permeable mesh wall;
- a second vapor-permeable mesh wall joined at a common fold line to the first vapor-permeable mesh wall and configured to fold over the first vapor-permeable mesh wall to about 0° to form an interior compartment that substantially encloses the sample in place on the first wall and holds the sample between the walls during mechanical oscillatory deformation;
- the first and second walls providing essentially uniform ventilation of a vapor-phase entity throughout the sample.
Dependencies are inferred from the claim text.