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:
Feb. 19, 2013

Filed:

Nov. 13, 2007
Applicants:

Jung-pil Kwak, Seoul, KR;

Wook Hyeon, Seongnam-si, KR;

Kyeong Sun Jeong, Gyeonggi-do, KR;

Yoo Jong Kim, Gyeonggi-do, KR;

Hong Soo OH, Goyan-si, KR;

Kyeong Joo NA, Seoul, KR;

Inventors:

Jung-Pil Kwak, Seoul, KR;

Wook Hyeon, Seongnam-si, KR;

Kyeong Sun Jeong, Gyeonggi-do, KR;

Yoo Jong Kim, Gyeonggi-do, KR;

Hong Soo Oh, Goyan-si, KR;

Kyeong Joo Na, Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/59 (2006.01); G01N 21/15 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to an apparatus for sensing precipitation density of sludge in a wastewater treatment tank, more particularly to an apparatus and method for precisely taking density of sludge precipitated in a wastewater treatment tank without being contaminated by sludge. The present invention of an apparatus for sensing precipitation density of sludge in a waste water treatment tank comprises a container which is tube-shaped with a bottom thereof open and submerged in wastewater as filled with gas therein; and a sensor which is installed in the space in the container, and senses sludge density as not directly contacting with wastewater.


Find Patent Forward Citations

Loading…