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:
Aug. 30, 1988
Filed:
Aug. 05, 1987
Applicant:
Inventors:
Hsu-Chi Yeh, Albuquerque, NM (US);
Bean T Chen, Albuquerque, NM (US);
Yung-Sung Cheng, Albuquerque, NM (US);
George J Newton, Albuquerque, NM (US);
Assignee:
Lovelace Medical Foundation, Albuquerque, NM (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B07B / ;
U.S. Cl.
CPC ...
209143 ; 55270 ; 73 28 ; 209133 ;
Abstract
A virtual impactor having improved efficiency and low wall losses in which a core of clean air is inserted into the aerosol flow while aerosol flow is maintained adjacent inner wall surfaces of the focusing portion of the impactor. The flow rate of the core and the length of the throat of the impactor's collection probe, as well as the dimensional relationships of other components of the impactor adjacent the separation region of the impactor, are selected to optimize separation efficiency.