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:
Apr. 10, 2012

Filed:

Oct. 16, 2009
Applicants:

Jae Won Chang, Daejeon-si, KR;

Kie Jeong Seong, Daejeon-si, KR;

Sang Jong Lee, Daejeon-si, KR;

Sang Man Moon, Daejeon-si, KR;

Hyoun Kyoung Kim, Daejeon-si, KR;

IL Kyung Park, Daejeon-si, KR;

Byoung Ho Jeon, Daejeon-si, KR;

Inventors:

Jae Won Chang, Daejeon-si, KR;

Kie Jeong Seong, Daejeon-si, KR;

Sang Jong Lee, Daejeon-si, KR;

Sang Man Moon, Daejeon-si, KR;

Hyoun Kyoung Kim, Daejeon-si, KR;

Il Kyung Park, Daejeon-si, KR;

Byoung Ho Jeon, Daejeon-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F 1/46 (2006.01); G01P 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a test tool for an airspeed indicator of an aircraft, including: a cylinder portion including an insertion groove with a predetermined amount of space, and of which one end is sealed by a cover and includes an injection portion on the cover so that the insertion groove passes through a pitot tube, and of which another open end includes a protruded step around its inner circumferential surface; a piston portion being inserted into the insertion groove to reciprocally move within the insertion groove, and including a protrusion portion having a size and a shape corresponding to an aperture of the insertion groove, and a bar-shaped knob portion being extended from the protrusion portion; and a display portion being formed of a transparent material on an outer surface of the cylinder portion to display a location of the protrusion portion reciprocally moving within the cylinder portion.


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