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:
Aug. 10, 2021
Filed:
Jan. 31, 2019
Applicant:
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 13/18 (2010.01); F01N 3/20 (2006.01); F01N 3/28 (2006.01);
U.S. Cl.
CPC ...
F01N 13/18 (2013.01); F01N 3/208 (2013.01); F01N 3/2839 (2013.01); F01N 2610/02 (2013.01); F01N 2610/1426 (2013.01); F01N 2610/1433 (2013.01);
Abstract
There is provided a urea water supply device () that is disposed in a urea water pipe line () to supply urea water toward a urea water injection valve () from a urea water tank (). A bracket () for attaching the urea water supply device () is attached to a revolving frame () of an upper revolving structure (). A cover () for covering the urea water supply device () is attached to the bracket (). On top of that, a urea water filter () that is disposed in the urea water pipe line () and traps foreign objects mixed into the urea water is attached to the cover ().