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:
Aug. 01, 2000
Filed:
Sep. 27, 1996
Steven J Savage, Concord, NH (US);
Thomas DeWayne Wendel, Nashua, NH (US);
Pitco Frialator, Inc., Concord, NH (US);
Abstract
An improved efficient deep fat fryer is described. Heat exchange within the fryer tank is facilitated by a 'U' shaped burner tube which is cantilever mounted from a side of the tank and a burner system is provided to circulate in a spiral pathway products of combustion through the burner tube. An internal turbulator baffle is provided to both facilitate the spiral circulation through the tube and to facilitate heat transfer from the combustion gases to burner tube walls. Exhaust gases are circulated downwardly from the burner tubes to a plenum beneath the tank which also has heat transfer baffle plates to facilitate heat exchange. Ultimately the products are expelled through a flue. The system further comprises filter bags for continuously filtering the oil which are disposed in a sump at the surface of the oil so that oil continually spills from the tank into the sump where it is filtered preferably by one or more bags of cloth material. Other types of filters could be used such as metal or paper or a synthetic in combination with paper so long as porosity is maintained and a filter powder could be used. The system provides a pump for recirculating the filtered oil to the tank.