Patent · US Expired

Dehumidifying device

US7323035B2 · kind B2 · utility

1Cited by
8References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 1, 2003
Grant dateJan 29, 2008
Priority date
Expiry dateMar 18, 2024

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01D2259/455
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A dehumidifying device for absorbing water vapour from ambient air comprising a container having an opening to permit water vapour to enter the container, the container having a water-absorbing agent disposed therein for absorbing water vapour, wherein a first portion of the water-absorbing agent is adapted to provide an indication of water absorption faster than a second portion of the water-absorbing agent following exposure of the first and second portions of water-absorbing agents to water vapour, thereby providing an early indication of the operation of the device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.