Deep fat frying apparatus with improved under-fryer cooking liquid pumping and filtration system
United States(US) Patent
Grob James T. (Shreveport LA) Kinch John M. (Shreveport LA)
출원인 / 주소
The Frymaster Corporation (Shreveport LA 02)
피인용 횟수 :
23인용 특허 :
A deep fat fryer structure includes a floor mounted housing having an upper internal portion in which a side-by-side pair of large capacity metal frypots are operatively supported, each of the frypots having an upper, heated cooking portion from which an unheated well depends. Cooking liquid may be
A deep fat fryer structure includes a floor mounted housing having an upper internal portion in which a side-by-side pair of large capacity metal frypots are operatively supported, each of the frypots having an upper, heated cooking portion from which an unheated well depends. Cooking liquid may be drained from the wells for filtration purposes by a valved drainage conduit system having an open outlet end. Filtered cooking liquid may be returned to the upper frypot portions, or their depending cold wells, through a valved supply conduit system connected to the outlet of a height-adjustable filtration pump disposed within a lower rear portion of the housing. An open-topped, wheel supported overflow pan nestingly receives an open-topped cooking liquid receiving container and may be rolled into the housing directly beneath the frypots to receive cooking liquid drained therefrom, the receiving container having a filtration structure supported on its bottom wall. Aligned outlet openings in the bottom walls of the overflow pan in the receiving container are sealingly communicated by interenagable O-ring slip fitting members which permit cooking liquid downflow through the outlet openings into a drain sump secured to the bottom of the overflow pan. Secured to the drain sump is a transfer pipe having an outer end provided with a quick disconnect fitting member which, when the overflow pan is rolled into the housing, is brought into automatic coupling engagement with a mating quick disconnect fitting on the filtration pump inlet. When the cooking filtration process is completed, the overflow pan may be rolled out of the housing, and the receiving container lifted out of the overflow pan to permit easy access to the filter structure for cleaning thereof. The entire filtration system requires no more floor space than that occupied by the frypot housing.
Deep fat frying apparatus comprising: a floor supportable housing; a frypot operatively supported in an upper portion of said housing, above the floor, and adapted to receive and heat a cooking liquid in which food items may be cooked; drainage conduit means connected to said frypot for draining coo
Deep fat frying apparatus comprising: a floor supportable housing; a frypot operatively supported in an upper portion of said housing, above the floor, and adapted to receive and heat a cooking liquid in which food items may be cooked; drainage conduit means connected to said frypot for draining cooking liquid therefrom, said drainage conduit means having an inlet portion connected to said frypot to receive cooking liquid therefrom, and an outlet portion for discharging the received cooking liquid; drainage valve means interposed in said drainage conduit means and operative to selectively initiate and terminate cooking liquid drainage from said frypot outwardly through said drainage conduit means; supply conduit means for flowing cooking liquid from a source thereof into said frypot, said supply conduit means having an outlet portion connected to said frypot for discharging cooking liquid thereinto, and an inlet portion for receiving cooking liquid; supply valve means interposed in said supply conduit means and operative to selectively permit or preclude flow of cooking liquid into said frypot through said supply conduit means; and cooking liquid filtration means for receiving cooking liquid discharged from said outlet portion of said drainage conduit means, filtering the discharged cooking liquid, and returning the filtered cooking liquid to said frypot through said supply conduit means, said cooking liquid filtration means including: a cooking liquid filtration pump and associated drive motor mounted within a lower rear portion of said housing, said pump having an outlet operatively coupled to said outlet portion of said supply conduit means, and an inlet with a forwardly facing quick disconnect fitting portion operatively associated therewith, an open-topped overflow pan having a bottom wall, a side wall portion extending upwardly from around the entire periphery of said bottom wall, and an outlet opening formed in said bottom wall, said overflow pan being movable rearwardly into said housing to a rear position in which said overflow pan is disposed beneath said frypot, and movable forwardly out of said housing, support means for supporting said overflow pan in an elevated position relative to the floor during movement of said overflow pan rearwardly into and forwardly out of said housing, a cooking liquid receiving container, removably insertable downwardly into said overflow pan for movement therewith, for receiving cooking liquid discharged from said drainage conduit means when said overflow pan is in its rear position within said housing, said container being sized to receive the entire cooking liquid volume of said frypot and having a bottom wall with an outlet opening therein which, when said container is inserted in said overflow pan, communicates with said overflow pan outlet opening, a transfer pipe carried by said overflow pan for movement therewith and having an inlet end communicating with said overflow pan outlet opening, and an outlet end positioned rearwardly of said overflow pan, said transfer pipe outlet end having installed thereon a quick disconnect fitting portion positioned and configured to be operatively coupled to said quick disconnect fitting portion on said pump inlet in response to movement of said overflow pan to its rear position within said housing, and to be uncoupled from said quick disconnect fitting portion on said pump inlet in response to forward movement of said overflow pan away from its rear position, filter means, carried by said cooking liquid receiving container, for filtering cooking liquid discharged into said container from said drainage conduit means and flowing into said transfer pipe through said outlet openings in said container and said overflow pan, and cooperative seal means on said container and said overflow pan for preventing cooking liquid outflow through said outlet opening of said container into said overflow pan when said cooking liquid receiving container is operatively inserted into said overflow pan.
이 특허에 인용된 특허 (11)
Fritzsche Donald E. (Chicago Heights IL), Cleaning and drying apparatus and method for the recirculation system of a high efficiency deep fat fryer.