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:
Sep. 03, 1991
Filed:
Mar. 29, 1990
Applicant:
Inventors:
Edward W Kaleskas, Jefferson, MA (US);
Thaddeus G Minior, Jr, Bedford, MA (US);
Sepideh H Nott, Fall River, MA (US);
Assignee:
Haemonetics Corporation, Braintree, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B04B / ; F16J / ;
U.S. Cl.
CPC ...
494 41 ; 277 90 ; 277 92 ; 277 96 ; 277 962 ; 494 65 ;
Abstract
A seal for a blood processing centrifuge bowl which is formed of a dynamic rotary seal and a static seal. The dynamic rotary seal is formed of an upper graphite or carbon non-rotating ring member and a lower two-piece rotatable ring member formed of a ceramic bearing surface bonded by adhesive to a plastic adapter ring. The static seal is comprised of an elastomeric diaphragm formed over the upper ring member and secured thereto by a plastic retaining ring.