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:
Oct. 27, 1987
Filed:
Jan. 16, 1986
Applicant:
Inventors:
Pedro P Cabrera, Miami, FL (US);
Humberto A Berra, Carol City, FL (US);
Edward N Doty, Pompano Beach, FL (US);
Assignee:
Coulter Electronics Inc., Hialeah, FL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; F16K / ; F16K / ;
U.S. Cl.
CPC ...
422103 ; 7386373 ; 7386412 ; 251355 ;
Abstract
A liquid diluting and transfer valve has disc like valve elements provided with faces frictionally engaged. The valve further includes passageways for passing both sample liquid and rinse liquid and a continuous groove formed in one of the respective faces. This continuous groove effectively isolates the passageway openings to the faces and is capable of blocking passage of leakage material along the face to the periphery of the engaged face.