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:
Feb. 25, 2025
Filed:
Feb. 16, 2023
Hochiki Corporation, Tokyo, JP;
HOCHIKI Corporation, Tokyo, JP;
Abstract
A fire detection apparatusF for detecting a fire in a monitored area, the fire detection apparatusF being attached to an installation surface of an installation object, the fire detection apparatusF comprises a detection spaceF in which detection of a detection target is performed; an incidence suppressing unit that inhibits ambient light from entering the detection spaceF, the incidence suppressing unit being able to allow a gas containing the detection target to flow into and out of the incidence suppressing unit; an accommodating unit that accommodates the incidence suppressing unit, the accommodating unit being able to allow the gas to flow into and out of the accommodating unit; and a light shielding wallF provided to surround the incidence suppressing unit on an inside of the accommodating unit, wherein the incidence suppressing unit includes a first incidence suppressing unit that covers a part of the detection spaceF, and a second incidence suppressing unit provided on an installation surface side of the first incidence suppressing unit, the second incidence suppressing unit covering another part of the detection spaceF, and the light shielding wallF is configured such that the light shielding wall overlaps a boundary between the first incidence suppressing unit and the second incidence suppressing unit when viewed in a direction orthogonal to the installation surface.