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:
Apr. 18, 2023
Filed:
Oct. 11, 2019
Applicant:
Kosmek Ltd., Kobe, JP;
Inventor:
Gaku Yoshimura, Kobe, JP;
Assignee:
KOSMEK LTD., Kobe, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23Q 1/28 (2006.01); B23Q 3/10 (2006.01);
U.S. Cl.
CPC ...
B23Q 1/28 (2013.01); B23Q 3/108 (2013.01);
Abstract
An ascent-detecting air supply port (), a descent-detecting air supply port (), and an air discharge port () are provided to a housing (). The ascent-detecting air supply port () is communicatively connected to an air outlet () by an ascent-detecting air passage (). The descent-detecting air supply port () is communicatively connected to the air discharge port () by a descent-detecting air passage (). The descent-detecting air passage () is closed by a valve mechanism () including: a valve surface () provided on a piston portion (); and a valve seat () provided on an inner surface of the housing (), when an advance piston () is retracted to a lowered position.