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:
Mar. 25, 2025
Filed:
Aug. 24, 2023
Hochiki Corporation, Tokyo, JP;
Keisuke Washizu, Tokyo, JP;
Hiroki Masuzawa, Tokyo, JP;
HOCHIKI Corporation, Tokyo, JP;
Abstract
Provided is a sensorprovided with a detection elementfor detecting heat of a heat air current generated in association with a fire in a monitoring area, in which the detection elementis disposed so that a detector protrudes from a predetermined base portion of the sensor, the sensorincludes a control structure that has a stepped portion higher than the predetermined base portion, the control structure being configured to guide the heat air current to the detector of the detection elementalong an outer peripheral wall of the stepped portion, at least a part of the detector of the detection elementis located on a base portion side lower than the uppermost step of the stepped portion, a labyrinth portion guides the heat air current to the detector of the detection elementalong a side end portion corresponding to an outer peripheral side of the stepped portion of a plurality of partition walls, and the heat air current containing smoke introduced into the labyrinth portion is introduced to the smoke detector disposed in a lower part of the control structure via an opening penetrating the stepped portion of the control structure from an upper surface to a lower surface side.