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:
Jul. 14, 2015

Filed:

Aug. 02, 2012
Applicants:

Yasutaka Ishizuka, Tochigi, JP;

Satoshi Oikawa, Tochigi, JP;

Michiaki Ohkubo, Tochigi, JP;

Masaichi Ohno, Tochigi, JP;

Inventors:

Yasutaka Ishizuka, Tochigi, JP;

Satoshi Oikawa, Tochigi, JP;

Michiaki Ohkubo, Tochigi, JP;

Masaichi Ohno, Tochigi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/18 (2006.01); A61B 1/00 (2006.01); A61B 1/12 (2006.01); G02B 23/24 (2006.01);
U.S. Cl.
CPC ...
A61B 1/00 (2013.01); A61B 1/0008 (2013.01); A61B 1/00064 (2013.01); A61B 1/00071 (2013.01); A61B 1/00091 (2013.01); A61B 1/12 (2013.01); G02B 23/2492 (2013.01);
Abstract

While an insert shaft () disposed with a wide angle lens () at a top end thereof is being inserted into a hole to inspect a wall surface of the hole on the basis of an image photographed through the wide angle lens (), gas is injected into the innermost recess of the hole along the outer circumferential surface of the insert shaft () by a gas injection mechanism (). The gas injection mechanism () is provided with a guide () configured to surround a top end portion of the insert shaft () and form a gas injection passage (R) extending in the longitudinal direction of the insert shaft () between the inner circumferential surface of the guide () and the outer circumferential surface of the insert shaft (), and a gas supply unit () configured to supply gas to an inner space of the guide ().


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