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:
Jun. 24, 2025
Filed:
May. 11, 2022
Applicant:
Asiana Idt Inc., Seoul, KR;
Inventors:
Sang Do Shin, Seoul, KR;
Hoon Suk Lee, Seoul, KR;
Assignee:
ASIANA IDT INC., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 15/28 (2006.01);
U.S. Cl.
CPC ...
F15B 15/2861 (2013.01);
Abstract
The present invention provides a device for detecting the position of a piston, which includes a magnetic substance and is arranged so as to be movable inside a cylinder, the piston position detection device comprising: a first sensor for detecting the position of the piston by sensing a magnetic field generated by the magnetic substance; a second sensor for preventing false detection of the first sensor by sensing, before the first sensor, an external magnetic field; and a housing, which is mounted on the outer circumferential surface of the cylinder and accommodates the first sensor and the second sensor therein.