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:
Oct. 19, 1976
Filed:
Sep. 25, 1974
Shigeru Maeda, Osaka, JA;
Akira Ithuzi, Osaka, JA;
Matsushita Electric Industrial Co., Ltd., BOTH OF, JA;
Kyokuto Electric Company, Limited, BOTH OF, JA;
Abstract
A first hollow control shaft is rotatable within a housing between actuating and restoring positions with intermediate ON-OFF positions therebetween. A first insulating actuator is rotatable within the housing to operate at least a pair of normally open contacts. A second insulating actuator is slidable along a predetermined path and normally biased to operate normally closed contacts and engageable with the first actuator by a lost motion connection which permits the second actuator to move in a limited range with respect to the rotational movement of the control shaft. The normally closed contacts are placed in a trigger circuit of an induction heating apparatus and the normally open contacts placed in a power supply circuit of the apparatus, the former being operated to disable the trigger circuit prior to energization or de-energization of the power supply circuit. A second control shaft is journaled through the first control shaft. A pinion gear is mounted on the second shaft. A rack is slidable within the housing and engages the pinion. An elevating mechanism is provided on which an induction heating coil of the induction heating apparatus is placed to adjustably heat a utensil located adjacent the coil. A connecting wire couples the rack and the elevating mechanism to effect raising and lowering of the coil to a desired position by rotation of the second shaft.