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:
Dec. 25, 2012
Filed:
Apr. 29, 2009
Applicant:
Martin Lehmann, Wohlen, CH;
Inventor:
Martin Lehmann, Wohlen, CH;
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F 1/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
For testing metered-dose-ejection devices, whether the ejected dose accords with a rated dose, the device () is sealingly applied () to a test compartment () and upon machine manipulation on the device (M,) a dose is ejected into the test compartment (). Pressure difference established by such injection and with respect to a pre-established reference pressure () in the test compartment () is monitored by a pressure sensor (). The output signal (o) of this sensor () is indicative of the extent of the addressed dose.