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:
Nov. 14, 1995
Filed:
Oct. 07, 1993
Herman Meier, Littau, CH;
Martin Witzig, Horgen, CH;
Berndorf Luzern A.G., Littau, CH;
Abstract
A tray transport cart which accommodates trays for holding dishes for containing meals has a movable cart body with a plurality of tray carriers installed therein. Induction coils are inserted into the tray carriers for generating a local electromagnetic field. The trays hold the dishes which are provided with a current-conducting layer. An HF generator positioned on the cart body cooperates with the induction coils to produce the total inductance of the coils to generate a desired induction current in the current-conducting layer of the dishes, in the range between 32 .mu.H and 76 .mu.H, to maintain the meals contained in the dishes at warm temperatures.