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:
May. 04, 1999
Filed:
May. 26, 1993
Applicant:
Inventors:
Robert K Schultz, Edina, MN (US);
Constantinos Sioutas, Boston, MA (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
12820023 ; 12820014 ; 12820018 ;
Abstract
A hand held aerosol actuator involving an aerosol source and a chamber having walls defining a constriction aperture. The aerosol source communicates with the chamber and directs an aerosol dose along an axis into the chamber. The constriction aperture is coaxial with the exit orifice and is dimensioned such that the respirable mass of the aerosol dose is increased relative to the respirable mass of an aerosol dose expelled through a like actuator not having the constriction aperture.