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:
Jun. 27, 1989
Filed:
Nov. 14, 1988
Nobuo Shimomura, Nagoya, JP;
Tomio Hotta, Kuwana, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An electric siphon coffee maker including a lower container for containing water and an upper container for containing coffee powder is disclosed. The upper container is placed over the lower container so that a water feed tube of the upper container is inserted into the lower container. Heat is applied by a heater to the lower container containing water and the hot water is transferred from the lower container to the upper container by aerial pressure in the lower container. A temperature sensor senses the temperature of a portion of the device, which temperature is increased in accordance with the increase of the temperature of the water contained in the lower container in the case where heat is applied to the lower container. A heater input power control circuit acts to reduce the heater input power in accordance with the temperature sensed by the temperature sensor. A heater deenergizing circuit acts to stop energizing the heater after or immediately before the temperature sensed by the temperature sensor reaches the temperature at which the hot water transfer to the upper container is completed.