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:
Sep. 17, 2019
Filed:
Mar. 22, 2016
Ihi Corporation, Koto-ku, JP;
Jaemin Huh, Koto-ku, JP;
IHI Corporation, Koto-ku, JP;
Abstract
Provided is a diaphragm type actuator which drives an operation rod in an axial direction, including: a diaphragm which is connected to the operation rod; a high pressure chamber which is adjacent to one end side of the diaphragm in the axial direction; a low pressure chamber which is adjacent to the other end side of the diaphragm in the axial direction; and a return spring which is provided in the low pressure chamber and urges the diaphragm toward the high pressure chamber. Since an absorption portion is disposed inside the high pressure chamber, a force acting on the diaphragm is absorbed when the diaphragm moves toward the high pressure chamber and stops therein.