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. 09, 1989
Filed:
Apr. 22, 1988
Applicant:
Inventors:
Virgil A Marple, Maple Plain, MN (US);
Benjamin Y Liu, North Oaks, MN (US);
Assignee:
Regents of the University of Minnesota, Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
7386322 ; 7386325 ; 7386471 ;
Abstract
A personal sampling impactor that comprises a compact mounting arrangement using a base, a cover, and an impactor plate cartridge that fits within the cover and is supported on an upper end of the base. A filter is held in place between the impact plate cartridge and the base, and the cover is made so that it can easily be placed over the impaction plate and latched in place to hold the unit together. The cover has inlets that align with a lightly oiled impaction plate surface on which particles will adhere.