Patent · US Active

Nonreturn valve for a compact ventilation system as well as compact ventilation system

US11660417B2 · kind B2 · utility

0Cited by

2References

20Claims

0Family size

Assignee

DRÄGERWERK AG & CO. KGAA · DE

Inventors

Ludger Tappehorn · Stockelsdorf, DE
Klaus Abraham · Wulfen, DE
Thorsten DUNKEL · Fahrenkrug, DE
Andreas Junk · Lübeck, DE

Key dates

Filing date	Nov 16, 2018
Grant date	May 30, 2023
Priority date	—
Expiry date	Mar 31, 2042

Classification

Technology area (CPC A)Human Necessities
CPC primaryA62B18/10
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A nonreturn valve (10) for a compact ventilation system (100), includes a recoil membrane (20) and a holding element (40) for holding the recoil membrane (20) and for fastening the nonreturn valve (10) at a flow duct (110) of the compact ventilation system (100). The recoil membrane (20) has at least one mechanical stabilizing section (22) for cooperating with at least one mechanical counter-stabilizing section (42) of the holding element (40) or of the flow duct (110) of the compact ventilation system (100). At least one opening section (24) is provided for the defined movement of the recoil membrane (20) during the opening of the nonreturn valve (10) and a holding section (26) is provided for holding the recoil membrane (20) at a counter-holding section (46) of the holding element (40). A compact ventilation system (100) is provided with such a nonreturn valve (10).

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