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:
Nov. 02, 1993
Filed:
Jun. 06, 1991
Applicant:
Inventor:
John W Caldwell, Glenside, PA (US);
Assignee:
Alfa Laval Separation Inc., Warminster, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B04B / ;
U.S. Cl.
CPC ...
494 53 ; 494 56 ;
Abstract
A decanter centrifuge having an inflatable dam for controlling the pond level. Inflation of an annular bladder adjacent to the liquid discharge opening controls the radial height of the pond surface within the bowl of the centrifuge.