US Patent 7526223 Heat exhausting structure and image forming apparatus

Patent 7526223 was granted and assigned to RICOH COMPANY,LTD. on April, 2009 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

75262230

Patent Inventor Names

Takefumi Adachi0

Toshio Ishii0

Yuichi Watanabe0

Kazuhiko Imamura0

Makoto Ando0

Masaaki Tsuda0

Date of Patent

April 28, 2009

Patent Application Number

114141760

Date Filed

May 1, 2006

Patent Primary Examiner

‌

Susan S Lee

Patent abstract

A housing in which a heat source for heating a member to be heated is disposable includes a first end and a second end in a longitudinal direction. Each of the first end and the second end is linked to a duct. A blowing unit is provided at the first end of the housing and causes an airflow in a space formed in a state in which the heat source is disposed in the housing. The duct linked to the second end of the housing is formed to extend from the second end. A length of the duct linked to the second end of the housing is longer than a hydraulic diameter by a predetermined number of times or more.