Patent · US Active

Humidifier with back-flow prevention valve

US8997740B2 · kind B2 · utility

7Cited by

22References

18Claims

0Family size

Assignee

RIC Investments LLC · US

Inventors

J. Raymond Pujol · Murrysville, US
Patrick Truitt · Hudson, US
Daniel Martin · Vedène, FR
Winslow K. Duff · Export, US
Steven A. Kimmel · Greensburg, US
Jeffery Keppler · Export, US
Peter Chi Fai Ho · Pittsburgh, US
Lance Busch · Trafford, US
Jerome Matula, Jr. · Vandergrift, US
Drew A. Demangone · Latrobe, US
Anthony Jon Bafile · Jeannette, US

Key dates

Filing date	Mar 5, 2007
Grant date	Apr 7, 2015
Priority date	—
Expiry date	Jan 18, 2032

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF24F2006/008
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A humidifier for use with a pressure support system. The humidifier includes a body having an inlet, a fluid holding chamber, and an outlet. The inlet is positioned upstream and in fluid communication with the fluid holding chamber. The outlet is positioned downstream of and in fluid communication with the fluid holding chamber. A back-flow preventing valve is positioned upstream of the fluid chamber. The back-flow preventing valve is movable between an open position, in which the inlet is unblocked, and a closed position in which the inlet is blocked. In the closed position, the back-flow preventing valve prevents fluid, fluid vapor, or both from entering the pressure support via the inlet to the humidifier.

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