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:
Nov. 25, 2025
Filed:
Mar. 25, 2022
Ubukata Industries Co., Ltd., Nagoya, JP;
UBUKATA INDUSTRIES CO., LTD., Nagoya, JP;
Abstract
A pressure switch includes a pressure-resistant container, a contact mechanism, at least one airtight terminal, a diaphragm that is operated at first operating pressure and is restorable at restoring pressure lower than first operating pressure, a first pressing member that presses the contact mechanism due to the operation of the diaphragm and switches the contact mechanism to an open state, a pressure-receiving deformation member that is deformed and operated at second operating pressure higher than the first operating pressure, and is not restored even when the pressure decreases to atmospheric pressure after the operation at the second operating pressure, and a second pressing member that presses the contact mechanism due to the operation of the pressure-receiving deformation member and switches the contact mechanism to the open state. The first pressing member and the second pressing member are composed of an inorganic material without containing any organic material.