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.

Date of Patent:
Aug. 08, 2000

Filed:

Jul. 02, 1999
Applicant:
Inventors:

Jong-woo Kim, Yongin, KR;

Un-ho Baik, Suwon, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
399250 ; 347 89 ; 347 93 ; 399237 ;
Abstract

The carrier recovery apparatus includes a water/carrier separating unit with a level sensor installed at a predetermined level on a purge tank. The level sensor detects the level of the liquid carrier in the purge tank and generates a signal representing the level of the liquid carrier. The water/carrier separating unit also has a pump driven to draw out the water and liquid carrier stored in the purge tank through a connection pipe connected to the bottom of the purge tank in accordance with the signal generated from the level sensor, a first branching pipe branched off from the connection pipe to be connected to a waste water tank, and having a first valve selectively opened or closed, a second branching pipe branched off from the connection pipe to be connected to the carrier tank, and having a second valve selectively opened or closed, and a conductivity sensor installed at one end of the first branching pipe, for detecting the conductivities of the water and the liquid carrier and transmitting a control signal for selectively opening or closing the first valve and the second valve.


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