The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 1999
Filed:
Oct. 20, 1997
Barbara Hildegard Pause, Longmont, CO (US);
Other;
Abstract
The invention provides a method for measurement of characteristics related to water vapor transfer through plate-like material samples, in particular textile materials, and a measuring unit device with a water container, a water container atmosphere or headspace, air chamber, and measuring chamber, where the water container headspace and air chamber are separated by such plate-like material sample for carrying out such measurements under stationary air flow conditions according to detecting an absolute humidity increase of 1% in an air chamber atmosphere, and where determinations of water vapor transmission rate, water vapor resistance, water vapor permeability and water vapor pressure differential across the plate-like material sample are obtained via use of appropriate sensors installed within the housing of such testing device, including air temperature and humidity sensors, water temperature sensor, and an evaporative heat flux thermal sensor.