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:
Jun. 13, 2017

Filed:

Jun. 20, 2014
Applicant:

Daifuku Co., Ltd., Osaka-shi, JP;

Inventors:

Hiroshi Otsuka, Gamo-gun, JP;

Shinsuke Kawamura, Gamo-gun, JP;

Tadahiro Yoshimoto, Gamo-gun, JP;

Assignee:

Daifuku Co., Ltd., Osaka-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/677 (2006.01); H01L 21/673 (2006.01);
U.S. Cl.
CPC ...
H01L 21/67769 (2013.01); H01L 21/67389 (2013.01); H01L 21/67393 (2013.01); B65G 2201/0297 (2013.01); Y10T 137/6966 (2015.04);
Abstract

An article storage facility is provided which is relatively simple in structure and in which it is easier to perform maintenance work of apparatus provided to each zone. A first switching valve is provided in each of a plurality of zone gas supply portions whereas a second switching valve is provided in each of a plurality of storage section gas supply portions. A plurality of relief passages is provided with each relief passage connected to the inactive gas supply passage on a downstream side, with respect to a gas supplying direction, of the position in which the first switching valve is provided and on an upstream side, with respect to the gas supplying direction, of the position in which the second switching valve is provided in the inactive gas supply passage. A zone relief switching valve is provided to each of the plurality of relief passages.


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