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:
Jul. 06, 2021
Filed:
Jan. 16, 2020
Saginomiya Seisakusho, Inc., Tokyo, JP;
Satoshi Miyakawa, Saitama, JP;
Tomohiro Sakakibara, Saitama, JP;
Saginomiya Seisakusho, Inc., Tokyo, JP;
Abstract
A pressure switch is provided which enables an increased pressure tightness. A pressure switch comprises a diaphragm, a cap to define a storage space for pressure fluid, a plate-shaped stopper configured to limit a position of the diaphragm in the event of pressure variation to define a working position, a coupling section for coupling outer circumferences of the diaphragm, the cap and the stopper to form a diaphragm unit, a ring-shaped member formed with a substantially same diameter as the diaphragm unit, a switch element, and a body (a tubular section of a joint section and a switch holding tube) configured to accommodate the ring-shaped member and the diaphragm unit while clamping an outer circumference section of the diaphragm unit together with the ring-shaped member so that the ring-shaped member comes into pressure contact with the outer circumference section.