Patent · US Expired

Device for regulating the air volume flow for a vent in a laboratory

US6923715B2 · kind B2 · utility

3Cited by

11References

14Claims

0Family size

Assignees

WALDNER Laboreinrichtungen GmbH & Co. KG · DE
BAYER HEALTHCARE LLC · DE

Inventors

Konrad Kreuzer · Lauben, DE
Frank Barth · Radebeul, DE
Horst Esch · Kerpen, DE

Key dates

Filing date	Feb 5, 2001
Grant date	Aug 2, 2005
Priority date	—
Expiry date	Feb 7, 2021

Classification

Technology area (CPC G)Physics
CPC primaryG01F1/36
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A device for regulating the air volume flow for a laboratory exhaust, has a rectangular housing (6) which can be arranged on the laboratory exhaust. The device is equipped with inflow devices that can be connected to the interior of the laboratory exhaust and with outflow devices (8, 12, 13) that can be connected to an exhaust air system. The interior of housing (6) is divided by a partition (17) into two parts, namely a calming part on the exhaust side and a measurement and regulating part on the outflow side, and these two parts are connected by an air deflection area (18). A rectangular measurement orifice (20, 25) has pressure measurement devices (22, 23, 24, 28, 29) and a rectangular regulating flap (21) arranged one after the other at a distance in the direction of flow between a housing wall and the partition (17).

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