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. 25, 1991
Filed:
Apr. 16, 1990
Yasuo Hara, Toyoake, JP;
Hoshizaki Denki Kabushiki Kaisha, Aichi, JP;
Abstract
Disclosed is an automatic ice making machine having an ice making section, a water feed system, an ice releasing unit and an ice removal detector; characterized in that said ice making machine further comprises a protection unit which stops the ice making operation after a predetermined time counted from the starting point of the ice releasing operation, provided that the ice removal detector outputs no ice removal signal. The protector unit may have an alarm means which is actuated when the ice making operation is suspended for some reasons, or the protector unit may comprise a timer having a normally open contact which is closed when a preset time is counted up thereby, a normally closed contact interposed within one of the power supply lines connected to the ice making machine, and a relay having a normally open contact disposed parallel to the normally open contact of the timer; wherein the relay allows its normally closed contact to assume an open posture when the normally open contact of the timer is closed to simultaneously allow its normally open contact to assume a closed posture to retain continuity on its own.