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. 31, 2020
Filed:
Oct. 27, 2015
Noritz Corporation, Hyogo, JP;
Hironao Matsunaga, Amagasaki, JP;
Masaki Sugatani, Akashi, JP;
NORITZ CORPORATION, Hyogo, JP;
Abstract
An exhaust structure for combustion apparatus includes an exhaust tube connected to a water heater, an exhaust pipe through which the exhaust tube is introduced, and an exhaust tube fixing member for fixing a position of the exhaust tube relative to the exhaust pipe. The exhaust tube fixing member includes a first fixing portion having a cylindrical shape and fixed to the exhaust tube, and an attaching portion connected to the first fixing portion and attached to the exhaust pipe. The attaching portion have a first cylindrical portion having a first inner diameter D, and a second cylindrical portion having a second inner diameter Dsmaller than the first inner diameter Dof the first cylindrical portion.