Abstract: A supporting brace is employed to pivotally mount a fryer lifting lid on a monorail lifting device. The supporting brace includes a central bracing member having a first and a second member face and having a first and a second member end. A monorail mounting bracket is positioned on the second member face. A first pivot arm extends substantially perpendicular to the first member face at the first member end, and a second pivot arm extends substantially perpendicular to the first member face at the second member end. The first member end has a first member end height, and the second member end has a second member end height. The first pivot arm has a first pivot arm height and the second pivot arm has a second pivot arm height, such that the first member end height is greater than the first pivot arm height and the second member end height is greater than the second pivot arm height.

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.

Abstract: A carrier for product trays of a fryer is disclosed. According to one embodiment, the carrier includes a first and a second upper horizontal support. The front portions of the upper horizontal supports are connected by a front stabilizing means, and a rear portion of the upper horizontal supports are connected by a rear stabilizing device. A rear vertical support extends downwardly from the rear of the carrier. At least one tray securing point is located on the rear vertical support and is adapted to detachably receive a product tray. The product tray may be placed in the carrier in from the side of the carrier or from an oblique angle to the carrier. In another embodiment, a carrier includes a first and second upper horizontal support. The front portions of the upper horizontal supports are connected by a front stabilizing device, and a rear portion of the upper horizontal supports are connected by a rear stabilizing device.

Abstract: The invention concerns a cooking appliance comprising an external housing (3) in which are incorporated a vessel (12), device (14) for electrically heating the vessel, and a box (23) housing a removable device (25) for condensing vapors urged to be connected on operating device (27) communicating with the vessel. The appliance comprises sensing device (65) for sensing the presence of the condensing device (25) in the box (23) and actuated by the condensing device (25) when it is present in the box (23), and a switch (68) whose control capable of closing the power circuit supplying the heating device is dependent on the actuating of the sensing device (65).

Abstract: A supporting brace is employed to pivotally mount a fryer lifting lid on a monorail lifting device. The supporting brace includes a central bracing member having a first and a second member face and having a first and a second member end. A monorail mounting bracket is positioned on the second member face. A first pivot arm extends substantially perpendicular to the first member face at the first member end, and a second pivot arm extends substantially perpendicular to the first member face at the second member end. The first member end has a first member end height, and the second member end has a second member end height. The first pivot arm has a first pivot arm height and the second pivot arm has a second pivot arm height, such that the first member end height is greater than the first pivot arm height and the second member end height is greater than the second pivot arm height.

Abstract: Improvements to a de-oiler apparatus, used to remove oil from food product chips after frying, include a perforated, inverted T-shaped baffle disposed in the inlet to the de-oiler and a flat, perforated plate disposed in the exit from the de-oiler. The T-shaped baffle and the perforated plate straighten the flow in the inlet and outlet regions, respectively, thereby decreasing the amount of steam which is lost from the chamber and reducing scattering of the chips, which hampers oil removal therefrom.

Abstract: A cooking medium management system and method from manipulating a cooking medium during cooking operations. The system has a controller generating a lock-out signal and a transfer signal, and selectively generating one control signal selected from the group consisting of a discard signal, a fresh fill signal, a drain signal, a filtration signal, and a polish signal. The system also has a cooking medium transfer pump and a transfer conduit for transferring the cooking medium to and from a frypot, wherein the transfer pump activates in response to the transfer signal. The system further includes a lock-out device, which receives the lock-out signal and disables a fryer heater. Moreover, this system includes a discard device, which receives the discard signal and includes the frypot, the drain pan, a drain valve and a cooking medium drain. The frypot and the drain pan are placed in communication with the transfer conduit via the drain valve.

Abstract: A mobile cooking oil caddie which includes in combination features of heating, filtering and transporting oil for disposal into a disposal tank. The caddie is rolled under a hot oil fry cooker and hot fats can be drained into the caddie from the cooker. A filter screen is provided in the caddie for filtering the hot fats. If the grease is to be disposed, the caddie is moved to a facility in which the oil is pumped from the caddie by a motorized pump to a disposal tank. If the grease has been stored for a time and is not in a fluid state, the heater can be activated to heat transfer mixture which in turn heats the grease to a fluid state. The filter can then be cleaned of food particles and the caddie stored until it is desired to drain the fry cooker again for receipt of hot fats from the cooker when desired.

Abstract: My invention is a portable filtration and treatment apparatus, comprising a tank, a filtering mechanism immersed in the tank (holding cooking oil), a treating mechanism preferably situated external to the tank, a pump, and a discharge. The pump draws liquid (cooking oil) from the tank through the filtering mechanism, through the treating mechanism, and back into the tank or into a cooking fryer by way of the discharge. The tank includes a moving device which allows for the portability of the apparatus. The filtering mechanism comprises a wire mesh envelope, including at least one wire mesh filter screen for filtering the cooking oil, an insert disposed within the wire mesh envelope supporting the wire mesh envelope and providing fluid communication therethrough, and a frame which holds the wire mesh envelope and the insert together. The treating mechanism is a container and is provided with an inlet and an outlet, a selectively removably attached top, and a flow baffle.

Abstract: A deep-frying apparatus comprises an elongate deep-frying pan (1) having a plurality of bottom inlets (2-6) and bottom outlets (7-9) for frying oil, as well as a filter (13), a circulation pump (14) and a heat exchanger (11), which are connected in series from a first collection pipe (12), which is connected to the bottom outlets (7-9), to a second collection pipe (10), which is connected to the bottom inlets (2-6). At least one pair (18-20) of opposing lateral inlets is arranged in opposing side walls of the deep-frying pan (1) and provided opposite to one another in an area closest to an inlet end (16). At least two of the bottom inlets (2-6) are arranged in this area. Via a third collection pipe (24), the lateral inlets (18-20) are connected to the circulation pump (14), such that oil jets having a velocity of flow much exceeding that of the frying oil flowing in the longitudinal direction of the deep-frying pan are directed towards one another essentially transversely of this longitudinal direction.

Abstract: An adjustable continuous filtration system for cooking fats and cooling oils. Using a variable orifice restriction such as a valve, the amount of cooking fat or cooking oil recycled to a filter is controlled in accordance with the results of testing the discharged cooking fat or cooking oil for quality control, by changing the size of the orifice. If the discharged fat or oil not within industry standards, the proportion being recycled is increased. If the fat or oil tests appreciably above industry standards, the proportion recycled to the filter is decreased.

Abstract: A process of and system for distributing, filtering, storing, recovering, and disposing of bulk edible oil or other fluid. The filtering system having a filter box assembly, superstructure and fluid transfer unit functions to filter the edible oil or other fluid, transfer the fresh (new) oil or other fluid for use in commercial vats and transfer spent (old) oil or other fluid to an outdoor supply and disposal storage tank. Two three-way valves coupled to two manual three-way valve switch handles operate to control the fluid transfer unit to intake fresh or old fluid and to dispense of the fresh or old fluid. A mobile transport truck couples to the outdoor supply and disposal storage tank for filling the supply and disposal storage tank with fresh (new) oil or other fluid and retrieves the spent (old) oil or other fluid.

Abstract: An apparatus for collecting, storing, and transferring waste cooking oil from commercial fryers. The present device includes a holding tank having a sloped bottom wall, an input conduit for connection to a supply of waste grease or oil, and an output conduit for transferring the oil to a disposal facility. The holding tank includes a pump having an internal grinder for pulverizing solids such as chicken parts or french fries, and the pump is operated by a drive motor having limiting timer which prevents the motor and/or pump from being destroyed if inadvertently left on. A system of float switches mounted within the holding tank monitor the level of waste oil in the chamber, and trigger an internal heating element which prevents the oil form solidifying. The float switches also activate external warning lights which alert the operator when the tank is ar or near capacity, and also interrupt the pump operation to prevent overfill.

Abstract: A method and apparatus for producing increased protein chicken meal. Product is loaded into a cooking vat that is 40 feet long by 5 feet wide by 4 feet deep, with a system of moving chain conveyors and paddles. These conveyors move the product at a predetermined speed through oil maintained at a temperature of approximately 360.degree. to 380.degree. F. for the entire length of the vessel, and dumps the product at the opposite end of entry. Oil is circulated through the vat at a rate of approximately 680 to 860 gallons per minute (gpm) to allow for the rapid removal of fat and moisture from skin and meat in a continuous process. The volume of oil in the cooking vat is approximately 4,500 gallons.

Abstract: A continuous and concurrent filtering and treating device and method with an external treating device, comprising a filtering mechanism immersed in a fryer filled with cooking oil, a treating mechanism situated external to said tank, and a suction pump which draws cooking oil from the fryer through the filtering mechanism, through the treating mechanism, and pumps it back into the fryer. The filtering mechanism comprises a wire mesh envelope, including at least one wire mesh filter screen for filtering the cooking oil, an insert disposed within the wire mesh envelope supporting the wire mesh envelope and providing fluid communication therethrough, and a frame which holds the wire mesh envelope and the insert together. The treating mechanism comprises a vessel in one embodiment and a container in an alternative embodiment and is provided with an inlet and an outlet and a selectively removably attached top.

Abstract: A device and method for continuously and concurrently filtering and treating cooking oil used while frying food in a fryer with cooking oil therein is disclosed, including a filtering mechanism and a treating mechanism. The mechanisms are mechanically interrelated and are both disposed internally of said fryer. The mechanisms include an external wire mesh envelope, including at least one wire mesh filter screen for filtering the cooking oil, and an inner frame disposed within said external wire mesh envelope. The inner frame comprises the outline of a generally rectangular shape with two fingers extending into the rectangular frame from midway along each of two of the frame opposing side walls, said fingers and inner frame supporting the wire mesh envelope. The mechanisms further comprise first and second caps threadedly connected to each other through the wire mesh envelope and the inner frame. The caps provide fluid communication to a suction pump.

Abstract: A recirculating food product deep fryer comprising a cooking tank, a cooking oil dispersement assembly extending into the cooing tank for emitting a cooking oil into the cooking tank, a heat exchanger, and a centrifugal pump for continuously pumping the cooking oil through the heat exchanger and cooking tank. The centrifugal pump includes a cylindrical, hollow and vertically aligned sump tube and a pump impeller rotatably mounted approximate the bottom end of the sump tube, a rotor shaft extending through the sump tube substantially along the sump tube axis for rotatably driving the impeller, a motor couple to the rotor shaft at the top end of the sump tube for rotatably driving the rotor shaft, and an annular baffle mounted to the rotor shaft between the pump impeller and the motor. The annular baffle acts to centrifugally sling cooking oil particles entrained in steam rising vertically through the sump tube and coming in contact with the bottom surface of the annular baffle.

Abstract: An air tool lubricator which includes a body having an inlet and an outlet for a gas, a top bore, and a lubricant chamber. The first end of a lubricant conduit is coupled in fluid-flowing relation to the lubricant chamber, and the second end of the lubricant conduit is disposed in the outlet of the body and is capable of being coupled to a lubricant line. The lubricant line carries lubricant from the air tool lubricator to an air tool. Located within the lubricant chamber and capable of delivering a predetermined amount of lubricant into the lubricant conduit is a lubricant metering device or injector. Mounted on the body is a reservoir which is capable of holding a liquid lubricant, and which has a priming conduit through which lubricant may be delivered to the bore of the body. A priming pump is mounted on the reservoir and is capable of delivering a predetermined amount of lubricant from the reservoir to the lubricant chamber. The priming pump is used to fill the lubricant line with lubricant.

Abstract: A fine mesh filter screen is used in the fry pot of a deep fat fryer to remove all but the finest loose food particles after every cooking cycle, which otherwise burn and shorten the life of the cooking oil.

Abstract: An automated deep fat frying apparatus comprises a plurality of cooking vats in a housing having a filter pan pump assembly. The apparatus has an oil distribution system and a control system having a computer programmed to operate and control oil transfer functions. Motor operated drain and return valves with position sensors are installed on each vat in the oil distribution system and operated by the control system to provide an automatic filter function and an oil transfer function whereby oil is drained from a first vat and transferred to a second vat according to selection inputs from the operator. The system includes operator selectable automated fill and dispose functions. In addition to valve position sensors, the system includes oil level sensors in the vats and filter pan, a pan position sensor and may include level sensors in a supply or dispose tank tied in to the control system which prevent mishaps during oil transfer operations.

Abstract: Improved apparatus and process for filtering cooking oil of the type used in deep fat fryers such as are used in restaurants and bakeries. Full cooking temperature oil from the fryer vat is forcefully moved by a motorized pump through a canister holding a sintered metal filter which is preferably made of fused Stainless steel granules and which will filter-out solid particles down to about 0.5 microns in dimension from the oil. The hot oil passes through the filter before the filtered hot oil is returned to the fryer vat through a hand held flexible dispensing hose. The canister includes an openable lid to allow repeated removal, washing and re-installation of the highly durable and reuseable sintered stainless steel filter. One preferred embodiment in accordance with the invention is a portable unit mounted on wheels so it can be rolled from one fryer to another fryer and then to an out of the way storage area.

Abstract: A cooking apparatus including an open housing (1) closed by a lid (8), a cooking vat (4) provided inside the housing, and a cooking vapor condenser device (13) provided outside the housing. At least one vapor outlet (22) is provided between the upper portion of the vat (4) and the condenser device (13) and includes an upstream section (24) integral with the lid (8) and having one end (25) in communication with the upper portion of the vat (4), and a downstream section (27) connecting the other end (26) of the upstream section with the condenser device (13). This system is suitable for household deep fryers.

Abstract: A self contained filter assembly is provided for a deep fat fryer which permits repeated filtering and reusing of the oil as a cooking media in the fryer. The filter includes a pan received in a drawer beneath the housing of the fryer which provides a filter media along the upper surface of a grid therein. Suction is applied by a suction pump mounted within the fryer which communicates between the surface of the filter pan below the grid and the fry pot itself. When the outlet valve on the fry pot is opened the oil flows downwardly by gravity into the filter pan and the pump applies suction to the surface of the pan to draw the oil through a filter media and return the filtered oil to the fry pot.

Abstract: This invention generally provides a process and apparatus for the separation of oil or fat from food particles, carbohydrate matrices and crumbs in a continuous process, and for the reuse and/or recycling of the separated oil or fat. This invention more particularly provides an apparatus and a process in which the crumbs are mixed with hot water and agitated for a predetermined time, after which the agitated mixture is introduced into a non-turbulent container where the oil/fat, the water and the crumbs are allowed to stratify. Upon stratification, a high quality oil/fat separates and rises based on its relative buoyancy and can then be removed and reused. The water and the crumbs also separate by stratification and can also be similarly removed.

Abstract: A continuous-filtering fryer apparatus for continuous filtering of cooking oil while cooking having a tank with a bottom and side walls extending from the bottom, an inlet port extending into the interior of the tank, an outlet port affixed to the tank and in communication with an interior of the tank adjacent a bottom of the tank, a pump connected to the inlet port and to the outlet port so as to draw cooking oil from the tank and to pass the cooking oil to the inlet port, heating elements extending into the interior of the interior of the tank, and a filter plate attached to the inlet port adjacent to the bottom of the tank for removing particles from the cooking oil. The inlet port is positioned so as to be below the level of cooking oil in the tank. The filter plate has a first mesh screen, a second mesh screen, and a layer of porous material sandwiched between the mesh screens.

Abstract: The present invention provides an oil overflow alarming system incorporated in a fryer apparatus. When the fryer apparatus includes a first frypot and a second frypot, a control unit of the oil overflow alarming system detects whether at least one of a second drainage valve unit and a second supply valve unit of the second frypot is in an open position while a first drainage valve unit of the first frypot is open, where cooking oil contained in the first frypot is drained into a cooking oil filtration unit to be filtered and cleaned. When at least either the second drainage valve or the second supply valve is open, the control unit outputs an overflow signal to an alarm unit, which generates an overflow alarm corresponding to the overflow signal to urge an operator to close both the second drainage valve and the second supply valve, thus preventing cooking oil from overflowing from the cooking oil filtration unit or the second frypot.

Abstract: This invention is particularly useful in food processing for separating crumbs and particles of breading material which have become suspended in frying oil, so that the oil may be reused. Separation is done in a unique cylinder having a hollow piston, whose forward end has a screen and whose aft face is imperforate. The cylinder has an openable door at its forward end. Near its end door the cylinder has a liquid inlet and a liquid outlet spaced somewhat aft therefrom. When the piston is in its retracted position its screen end is positioned axially between the inlet and outlet, so that the liquid may pass through the screen. Air pressure in the portion of the cylinder aft of the piston acts against its imperforate face to drive it forward. The screen end of the piston filters and drives the liquid back to the outlet, solids are compacted against the door.

Abstract: A food processing equipment particularly adapted for frying treatment of various kinds of vegetable root, meat and marine object which are first sliced and then disposed in a drying basket for removal of moisture; afterwards, the processed food is submerged in fructose for a period of time in a frying tank, and then the fructose is discharged out of the tank with frying oil charged thereinto subsequently. The food is then fried in the frying tank for some time. The fried food taken out of the frying oil is first shaken up and down and rotationally so as to get the same deoiled in a vacuum state. The deoiled food is then blown cool by way of cold air produced by a cooling machine. Next, the cooled food is carefully seasoned so that the original color and flavor and nutrition of the processed food can be well maintained and the same is tasted crispy and can be reserved for a longer time.

Abstract: An improved vacuum type food frying apparatus is mainly equipped with a food feeding device, a frying tank, an output device, a vacuum generating device, an oil heating and filtering device, an oil recycling and storing device. Food put in a plurality of baskets goes through a vibrated conveyor platform and is dehydrated by hot air blow and then is dispensed to different layers of the frying tank which is filled with frying oil stored in the oil recycling and storing device and constantly heated and filtered in circulation by the oil heating and filtering device; afterwards, the frying tank is vacuumized and the food in the baskets is intermittently shaken by way of an vibrated frame. After the food is properly fried, the food receiving baskets are lifted up and taken out of the frying tank and delivered to the output device which is actuated to vibrate and cooled by cold air blow.

Abstract: The present invention provides an improved fryer apparatus including a small size pulse combustor and an additional labor-saved function such as a filtering system or a lift system. The pulse combustor of the invention does not include a check valve or flapper valve for preventing back flow of combustion exhaust in an air supply system. This valve-free structure of the pulse combustor allows sufficient noise reduction without any silence or muffler and makes a free space for the filtering system or the lift system.

Abstract: A bulk cooking oil system has filter, waste, supply, and fryer stations connected by piping for movement of oil along preselected pipe paths. The filter station functions to filter cooking oil from the fryer station and has a valve adapted to open and close pipe lines that lead to and away from the filter station. The waste station stores used oil and has a valve adapted to open and close a pipe line leading to and away from the waste station. The supply station stores oil to be used at the fryer station for cooking food products and also has a valve adapted to open and close a pipe line leading to and away from the supply station. The fryer station has a fryer that receives and heats the cooking oil to cook food products and a valve adapted to open and close a pipe line leading to and away from the fryer station. All of the various valves are selectively operated and controlled so that a predetermined pipe path can be established between identified stations. A pump moves the oil along the selected pipe path.

Abstract: A deep oil fryer and filtration system is disclosed wherein the filtration system (B) is disposed within a cabinet (16) of a deep oil fryer (A) having a plurality of vats (10, 12, and 14). Filtration system (B) includes a drawer having a reservoir (20) and an adjacent utility compartment (40). A pre-filter (34) is disposed in a filter basket (30) received in reservoir (20) and spaced above a bottom wall of a reservoir by the legs (32). A drain outlet (28) from the reservoir delivers cooking oil to a pump (70). A flow line system which minimizes retention of cooking oil in the lines includes a reservoir outlet line (74), a filter inlet line (78), a filter by-pass line (80), and a return line (86). Whenever by-pass valve (82) is open and pump (70) is on, pre-filtered oil from filter (36) passes through filter inlet (50) and exits filter outlet (64) without passing through a filter element ( 48) to preheat the filter. The by-passed oil is returned to the cooking vat for rinsing out the cooking vat.

Abstract: A portable cooking oil filtering unit has an outer housing completely enclosing all the filter stages and providing access to the stages for maintenance purposes via doors and removable closures. The housing has an inlet conduit for connection to a cooking vat drain outlet, and an outlet conduit for returning filtered oil to the cooking vat. A first stage filter in the housing is connected to the inlet conduit for filtering relatively large size particles from the oil, and the filtered oil is connected to at least one additional filter stage for filtering smaller particles from the oil. A pump is connected downstream of the final filter stage, between that filter stage and the outlet conduit, for drawing oil through the filter stages under vacuum rather than pumping it through the filters under positive pressure. One of the filter stages is accessible to allow oil-life enhancing chemicals to be added to the oil.

Abstract: A centrifugal separation apparatus comprises a rotatable cylindrical member including a side perforated wall and an opened bottom and a bottom lid member including a central raised portion and a side wall inclined downwardly and outwardly. The bottom lid member is moveable between an upper position in which said bottom lid member is engaged by the lower end face of said cylindrical member and a lower position in which said bottom lid member is spaced apart from the lower end of said cylindrical member to form a gap therebetween.

Abstract: An oil supplying and recycling equipment particularly adapted for a vacuumized frying apparatus which is mainly equipped with a filtering tank having a U-shaped filter made of non-woven fabrics and a reservoir tank; the filtering tank is provided with a recycling duct and a connecting duct that are coupled to a main duct and to the reservoir tank respectively; and the reservoir tank is provided with a discharge duct connected to the main duct and a vacuum duct led to first and second auxiliary vacuum tanks and a vacuum pump respectively; the recycling duct and the discharge duct are provided with a control valve whereby the used frying oil in the frying pan can be filtered and recycled for further use.

Abstract: A filtering apparatus and method for removing solid impurities contained within a fluid. A plurality of filters each define successive stages and are linked in series whereby the output from a first filter feeds the input of a second filter and so on. Successive stages remove impurities of progressively smaller particle size whereupon the last stage provides a fluid substantially clean of all impurities and polished for subsequent reuse. The specific environment associated with the instant apparatus and method involves cleaning cooking oil in deep fat fryers.

Abstract: A cooking system is provided which includes a controller which controls a cooking process utilizing a cooking medium, a filter which filters the cooking medium, and a mechanism for determining when the cooking medium should be filtered by the filter. The cooking system further includes a lock-out mechanism responsive to the determining mechanism for inhibiting initiation of the cooking process for a predetermined time period if the determining mechanism determines that the cooking mechanism should be filtered.

Abstract: In accordance with the present invention a process and apparatus for removing contaminates from edible cooking oil is provided. A continuous stream of cooking oil at an elevated temperature is withdrawn from a cooking bath. A continuous stream of liquid solvent for at least a portion of the contaminates is mixed with the oil. The solvent has a specific gravity different than the specific gravity of the oil. As the oil and solvent streams are mixed, at least a portion of the contaminates are transferred from the oil to the solvent. The oil and solvent mixture is then separated by specific gravity into a stream comprising cleaned oil and a stream comprising solvent and contaminates. The cleaned oil stream is then returned to the bath, preferably being heated in a heat exchanger prior to introduction in the bath.

Abstract: Filtering system which periodically filters cooking oil used in deep fat frying employs a flat, single sheet of filtering material pressed at its outer peripheral edge areas in sealing relationship against the bottom of a vessel having a sump area below the bottom surface. Filtered oil is pumped from the sump area back to the fry tank after filtering. The improvement includes the single sheet and a mechanism for applying downward thrust of the sheet edges against the bottom, such mechanism utilizing fixed ledge means in said vessel to act as an abutment or anchor for the downward thrust-applying elements. A removable filtering screen maintains the sheet above the bottom of the vessel and is preferably removably interconnected with the thrust applying mechanism during installation and removable of filtering sheets in filtering position.

Abstract: An improved filter comprising a porous sheet of substantially uniform thickness having the following composition: 15% to 35% activated carbon; 15% to 40% calcium silicate, magnesium silicate, or mixtures thereof; 25% to 40% cellulosic fiber; up to 2% resin binder; and, optionally, 0% to 30% diatomaceous earth.

Abstract: 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.

Abstract: A process for recycling used cooking oil is disclosed. Used cooking oil is contacted with an aqueous solution containing ethylene diamine tetra acetic acid, n-propyl-3,4,5-trihydrobenzoate, mono-tert-butylhydroquinone, or a combination of these, to form a water/oil mixture. The water/oil mixture is then separated into its oil and aqueous components to obtain a regenerated oil.

Abstract: Method and apparatus for refining oil which in heated condition is used in the production of consumable products such as French fried potatoes by feeding the oil immediately after starting the baking process through a filter system within the time within which free fat acids or fat acid oxydation products could be formed.

Abstract: A method of filtering hot cooking oil including passing the oil through a screen to remove particulate matter and then pumping the oil under a relatively low positive pressure through a filter pad of uniform thickness and porosity composed in part of fibrous material and possibly other elements such as activated carbon and silica bound by a resin binder. Equipment for filtering cooking oil including a reservoir for storing strained oil, pump means for drawing oil from the reservoir and passing it under relatively low pressure through a filter pad of uniform thickness and porosity composed at least of fibrous material and possibly other elements such as activated carbon and silica bound by a resin binder and sealed in the base of a pressure chamber.

Abstract: A method is disclosed for refining oil which in heated condition is used in the production of consumable products such as French fried potatoes. The oil is fed through a filter system immediately after starting the frying process and within the time within which free fatty acids or fatty acid oxidation products could be formed.

Abstract: A frier incorporating filtering mechanism wherein a frier housing for frying food with edible oil contained and heated therein includes a partition disposed to define in the housing a suction space and to allow the oil to pass therethrough, a filtering web is provided to be movable at a part of the web along and over the partition, and the oil led through the web and suction space to the exterior of the housing is circulated back through a pump to the housing at a position higher than the partition, whereby impurities are kept being filtered out of the oil under use within the frier housing for frying even a large amount of food, to remarkably lower inherent oxidation of the oil.

Abstract: A cooking oil filter system comprises a pre-filter for removing relatively large particles from cooking oil and a second filter assembly connected to the pre-filter outlet for removing smaller size particles. A first, inlet manifold connects the drain outlets of a series of cooking vats to the pre-filter inlet, while a second, outlet or return manifold connects the outlet of the second filter assembly to an inlet on each of the cooking vats. Valves are provided in the inlet manifold path between each vat outlet and the pre-filter, and in the outlet manifold path between the second filter assembly and each of the vat inlets. A suitable control assembly controls opening and closing of the valves to control connection of each cooking vat into the oil re-circulating and filtering system.

Abstract: Apparatus for filtering contaminants from liquids such as cooking oil is disclosed. A filter assembly comprises an envelope formed of an upper wire mesh filter element and a lower wire mesh filter element joined about their peripheral edges and a porous insert filter member removably contained centrally within the envelope which has a plurality of voids allowing vertical and lateral fluid flow therethrough. The filter assembly is releasably secured in the assembled condition by a fastener which is adapted to be connected to a pump and the fastener has fluid passageways in communication with the porous insert for drawing fluid through the upper and lower filter elements and said insert. The upper and lower filter elements of the envelope are formed of stainless steel mesh and the porous insert filter member is formed of apertured aluminum plate.

Abstract: A two-stage filter apparatus for removing particles entrained in a liquid wherein the liquid is initially presented to the first filter stage having an endless filter belt for removal of a portion of the entrained particles to result in a liquid having a decreased density of particles. This resulting liquid of decreased density is then presented to a cyclone filter in the second filter stage and divided into two parts, one part which is substantially free of any particles which is then available for its intended use and a second part that is presented to another endless filter belt and returned serially to the first filter and then the second filter stages for subsequent filtering of particles.

Abstract: Apparatus for filtering contaminants from liquids such as cooking oil is disclosed. A filter assembly comprises an envelope formed of an upper wire mesh filter element and a lower wire mesh filter element joined about their peripheral edges and a porous insert filter member removably contained centrally within the envelope which has a plurality of voids allowing vertical and lateral fluid flow therethrough. The filter assembly is releasably secured in the assembled condition by a fastener which is adapted to be connected to a pump and the fastener has fluid passageways in communication with .Iadd.the lateral flow passages in .Iaddend.the porous insert for drawing fluid through the upper and lower filter elements and said insert. The upper and lower filter elements of the envelope are formed of stainless steel mesh and the porous insert filter member is formed of apertured aluminum plate.