This application relates generally to food cookers. The application relates more particularly to deep frying of poultry or fowl foods.
Devices to deep fry foods have been around for at least as long as historical records have been kept. Early devices were simply pots filled with oil hung over an open fire. Later devices merely replaced the open fire with a gas or electric range top. Still later devices were standalone dedicated deep fryers which plugged into wall current and generally had thermostats and thermal overload protections.
Around the beginning of the 1930s, in the southeastern United States, people started frying turkeys in cleaned out 55 gallon oil drums supported over an open fire. These eventually evolved into specialized turkey fryers with custom-made 2½ to 5 gallon and more capacity cooking vessels, suspended above open-flame gas-fired burners on, often on unstable metal support bases.
Around the beginning of 2000, an indoor variant of these early gas-fired turkey fryers became available. Because these were electrically powered and sold to the general public, they fell under household safety standards, such as, as an example, Underwriter Laboratories 1083, which required various safety features, including: thermostats, thermal overloads, stability standards, oil usage and food size restrictions, etc.
Turkey fryers intended for home use had, in general, tougher, and harder to meet personal safety standards, than standards for commercial units used in restaurants and other commercial environments. These included specifically at least: an oil capacity not to exceed 5 L (5.28 quarts), and a lifted food capacity, including food support, which could not exceed 15 pounds.
These tougher standards were predicated at least in part on the concept that in a commercial environment, generally adult and trained professionals only would be using the equipment, as opposed to the potential in a home environment for at least children and seniors to be operating the equipment. These home use safety standards also took into account that in homes it was likely at least children and pets might be in the device use environment.
Deep frying is inherently at least a little bit dangerous, at minimum because all deep frying involves the use of high temperature oil, generally exceeding 350° F., with the potential of the hot oil splattering, or pouring all at once, onto an individual.
Splattering of hot oil may be particularly a problem when often moist foods are first introduced into the hot cooking oil.
A second acknowledged problem of deep frying foods is that the frying process often dries out the foods because the hot cooking oil boils all the moisture from the foods.
Various embodiments will become better understood with regard to the following description, appended claims and accompanying drawings wherein:
Embodiment 100, as with all other fryer embodiment shown herein, is also versatile enough to cook both large and small amounts of unitary and plural, large and small food items, and to cook such food items by immersing them in hot cooking liquid all at once, or in multiple stages where only a portion of the food items are cooked at one time.
Fundamentally, embodiment 100 comprises an elongated food support vessel 104, with a plan view aspect ratio of 1.7 to 1 or greater, (that is, for every inch in width food support vessel 104 has in plain view, it must have 1.7 inches in depth or more) with generally planar, trough-like, sidewalls 116118 which have radiused end walls at both ends 106108. The floor 110 is also fully radiused. Generally spherical connecting surfaces 112114 transitioning between the radiused end walls at ends 106108, and radiused floor 110, complete the outer walls of the food support vessel 104.
This structure provides support for large fowl, such as turkey 102, to be held on its side, with one wing and one leg downward, as illustrated in
Alternatively, depending on the constructed size of embodiment 100, embodiment 100 may support food items, including turkey 102, in a variety of positions for cooking. As non-limiting and non-exhaustive examples, turkey 102 might rest on its breast, or its back, or its tail, or neck down, for cooking. Likewise, other food items to be cooked in embodiment 100, might be disposed in a variety of advantageous dispositions.
Embodiment 100, as with all fryer embodiments shown herein, may be constructed at any useful scale, including sizes both larger and smaller than those illustrated herein.
The sidewalls of food support vessel 104, including 116118106 and 108, are not perforated, and are comprised sheet-like surfaces. The term “not perforated” herein shall mean that 98% or more of its surface area is solid.
The interior surfaces of food support vessel 104 may be advantageously coated with a nonstick surface, both to at least facilitate food removal and to ease cleanup. This is also true for all fryer embodiments shown herein.
Floor 110 is perforated with openings 120 which regulate fluid flow into and out of the interior of support vessel 104. Such perforations 120 occur within the lower 30% of the height of food support vessel 104.
Cooking vessel 122 generally fully surrounds the exterior surfaces of food support vessel 104 with walls 124 which are generally parallel at an equidistant to the exterior walls of food support vessel 104.
Electrically energized rod-type heating element 126 is indented into 128 the outer walls of cooking vessel 122.
User operated control box 140 directs the operation of heating element 126 including thermostatically energizing heating element 126, and timing the duration of its operation.
Upper rim 130 of cooking vessel 122 is generally planar to couple face-to-face with generally flat lid 132. However, on forward end 134 (
Hood 136, formed in the forward portion of lid 132, helps direct liquid and gaseous fluids exiting cooking vessel 122 through space 142, downward into user dismountable debris collection cup 138, where the exiting material is stored for eventual disposal or reuse. Debris collection cup 138 may advantageously be translucent or transparent to allow users to view the quantity and identity of its debris content.
As with all debris collection cups shown herein, oil taken from debris collection cup 138 may contain water components. Such components are purified out of the oil upon reuse by being boiled and released in the form of steam.
Interior surfaces within debris collection cup 138, help condense out pollutants and at least thus filter vapors and gasses exiting cooking vessel 122. Additional surfaces may be placed within debris collection cup 138 to assist condensation removal of contaminants. Such surfaces may be similar to those described and shown in
As shown by liquid level 144 (
Embodiment 100, as with all fryer embodiments herein, may deep fry any suitable food which the embodiment is able to properly contain.
When cooking a large fowl, such as by way of a non-limiting and non-exhaustive example, turkey 102, embodiment 100 may place the fowl on its side, with one wing and one leg down, as illustrated in
In general, embodiments 146, 147, and 148 are variants of embodiment 100 with similar elements performing similar functions.
However, embodiment 146 differs from embodiment 100, because instead of having the profile shown in
This may decrease frying oil usage for certain foods. As non-limiting and non-exhaustive examples, for large fowls, such as turkey 102 illustrated, or for a leg of lamb, or for other foods, etc.
Embodiment 147 is generally identical to embodiment 146, except instead of having a plan view of
This again may help reduce frying liquid usage for certain foods when disposed in specific prescribed dispositions. As a non-limiting and non-exhaustive example, Thanksgiving turkey 160, may use less frying liquid than if it were placed horizontally on its breast.
Embodiment 148 is generally identical to embodiment 100, except its plan view is that shown in
Again, this may increase frying oil use efficiency, for certain foods under certain conditions. As a non-limiting and non-exhaustive example, cooking turkey 160 on its side, with one wing and one leg down, as shown in
In use, embodiments 100, 146, 147, and 148 operate similarly. Using embodiment 100 to typify, as a non-limiting and non-exhaustive example, food to be fried, such as turkey 102, is placed into elongated food support vessel 104 and lid 132 is placed to cap and contain the food within food support vessel 104.
The seal between lid 132 and elongated food support vessel 104 may be totally occlusive, or partially occlusive, such as, for a non-limiting and non-exhaustive example, in peak discharge situations, blocking at least 50% of exiting vapors and gasses from leaving food support vessel 104 through the seal.
Or the seal may provide minimal blockage.
Food support vessel 104, along with contained food 102 is then lowered into cooking vessel 122, which contains prescribed amounts of cooking liquid preheated to cooking temperatures.
Openings 120 in floor 110 help regulate how fast frying liquid can enter food support vessel 104 and how fast liquids and vapors may exit food support vessel 104.
This regulation in turn helps limit the amount of dangerous bubbling and splattering taking place exterior to food support vessel 104.
Lid 132 also caps cooking vessel 122 and helps prevent gasses, liquids, and vapors from leaving cooking vessel 122, except through space 142, where exiting materials are directed downward into debris collection cup 138 for filtering and storage.
Debris collection cup 138 may contain condensation surfaces within it, such as, by way of non-limiting and non-exhaustive examples, corrugated or other convoluted surfaces of perforated or non-perforated materials, potentially including: plastics, metals, ceramics, stones, pebbles, activated charcoal particles, metal wool, nonwoven plastics, screening, perforated metal, perforated plastics, or other suitable materials. These surfaces may be easy to clean such as in a dishwasher, or close washer, or sink, etc.
Debris collection cup 138 may also contain more conventional filtering material such as activated charcoal or impregnated nonwoven plastics, or woven fabrics, filter paper, or other filtering items
The food is left in the cooking temperature liquid for a predetermined amount of time which is adequate to cook the food, after which support vessel 104 and it's contain food, as a non-limiting and non-exhaustive example, turkey 102, are lifted out of the cooking liquid. The food is then removed from food support vessel 104 and served.
Alternatively, if only a portion of the food was cooked in the first cooking session, the above process may be repeated one or more times until all portions of the food are cooked.
The debris collection cup may dump out and reuse any collected overflow oil, and/or it may be simply cleaned out with its contents disposed of.
Marinades, spices, or other food treatments may be applied before, during, or after cooking.
Any suitable cooking liquids may be used. As a non-limiting and non-exhaustive example, pure olive oil is lower in undesirable fats and oils, and has an adequately high smoke point to allow cooking at 385° F. United States regulatory bodies, such as Underwriter Laboratories, prohibit cooking temperatures above 400° F. (UL 1083) for household use frying appliances.
Handles 162 and 164 may be disposed on opposite sides of food support 104, as shown at least in
Alternatively, a bail handle, such as commonly used on water buckets, may be used and attached to opposing sides or opposing ends of either elongated food support vessel 104 or food support vessels 152.
Heating element support 166 may help physically hold heating element 126 in place, and/or may increase heating element efficiency (i.e. the amount of electricity required to raise the temperature of the cooking liquid) by reflecting back to the cooking vessel otherwise wasted heat.
As a non-limiting and non-exhaustive example, if dimension 172 (
More specifically, embodiment 182 comprises cooking liquid containment vessel 184; configured to hold cooking temperature liquid and associated foods.
Cooking liquid containment vessel 184 is surrounded on its sides and bottom by outer enclosure 186, which positions and holds vessel 184 above a horizontal support surface.
Overflow holes 226 (
Overflow holes 226 may be used as an easy means of cooking liquid measurement by simply overfilling cooking liquid containment vessel 184 and placing food within it. Any excess cooking liquid simply overflows out of holes 226 and is stored in the bottom of outer enclosure 186.
Electrically energized rod-type heating element 188 is disposed within containment vessel 184, proximate to its floor. Heating element 188 is thermostatically and duration regulated by control box 190.
Cooking liquid volume indicator 192 (
Food support vessel 194 is configured to hold and support foods, and to be user removably disposed within vessel 184 when cooking liquid heated to cooking temperatures by heating element 188 is contained within vessel 184.
Orifices 196 (
Filter support 198 snaps onto the bottom of vessel 184 and holds filter media 200 above the floor of filter support 198 and below the floor of food support vessel 194 (see in particular
Orifices 202 in filter support 198 (
User removable food support vessel handles 204 and 206 facilitate insertion and removal of food support vessel 194 into and out of containment vessel 184.
Lid 208 removably caps food support vessel 194, and locks into place through clockwise rotation 210 (
As shown particularly in
Alternatively, flip out handle 220 may be used.
Lid 208 may totally block, block 90% or more of maximum flow, or provide less blockage of liquids and gasses exiting out of food support vessel 194. Such blockage may facilitate beneficial cooking results by retaining, liquids, flavors and juices within food support vessel 194 during cooking, and/or by containing heat and steam within food support vessel 194 while cooking is taking place, to more completely cook and tenderize food.
When cooking large foods, such as by way of a non-limiting and non-exhaustive example, a Thanksgiving Day size turkey, 40% or more of the outer surface of the food may make direct face-to-face contact with the interior walls of food support vessel 194. Such face-to-face contact may facilitate beneficial cooking results by helping block moisture, juices, and flavors from leaving such foods during cooking, thus making such foods moister, juicier, more tender and more flavorful.
Protuberances 222 (
During cooking with embodiment 182, and particularly when using embodiment 182 for deep frying, cooking activity is contained within food support vessel 184. Thus any splattering, bubbling, turbulence and splattering of cooking liquid is confined within food support vessel 184. This greatly reduces the likelihood of user injury. Splattering, bubbling, turbulence, etc. is generally minimized outside of food support vessel 184.
Cooking liquid which has been contaminated by cooking is automatically filtered through filter media 200 when food support vessel 194 is removed from cooking liquid containment vessel 184.
To help facilitate this, the ends of handles 204 and 206 may be inserted respectively into handle retention holes 230 and 232 (
Filter media 200 may take many forms. As non-limiting and non-exhaustive examples: it may be course or fine screening; cloth; nonwoven material such as steel wool or stainless steel wool; or cotton batting; particles such as sand, metal filings or gravel or activated charcoal particles of various sizes; materials impregnated with activated charcoal or other substances; filter paper; a an intact rectangular paper towel; woven metal; or any other suitable material.
Embodiment 182 may cook foods in a single step, where the entire food is cooked all at once, or it may cook foods in two or more stages, where only a portion of the food is cooked at any single time.
As a non-limiting and non-exhaustive example:
Smaller foods may be cooked in a single immersion, and larger foods may be cooked in two, three or more steps, cooking only a portion of food at a single time.
Orientation of food being cooked, whether in one or multiple stages, may be directed to whatever is convenient. This is true of all fryer embodiments shown herein. As a non-limiting and non-exhaustive example, a small chicken could be cooked with its feet down, with its feet up, on its side resting on one of its legs and one of its wings, on its back, on its breast, diagonally, or in whatever orientation is advantageous, given the size and shape of the chicken.
Food 242 is placed on food support shelves 224 and food support vessel 194 is then lowered into cooking liquid containment vessel 184 where it remains until food steaming has occurred. During this period, food 242 is held above boiling water 240 by shelves 224. Lid 208 helps retain steam within food support vessel 194 during the cooking.
In a variant of this, embodiment 182 may be used for boiling foods simply by placing the foods on the floor of food support vessel 194 and/or on one or more of its lower shelves, and raising the water level to 244.
Food support vessel 194 may mount more than the three food support shelves 224 shown, simply by adding more shelves 224 and more protuberances 222.
After steaming or boiling, the ends of handles 204 and 206 may be placed respectively into handle retention holes 230 and 232 (
Fundamentally, embodiment 246 is comprised of base 248, which from time to time surrounds and mounts removable, contained food support vessel 250.
Base 248 is comprised of outer enclosure 252 which mounts liquid containment vessel 254 using threaded stud 255 (
Threaded stud 255 also mounts thermostat and thermal overload sensor holder 257 which mechanically holds thermostat and thermal overload sensors against the floor of liquid containment vessel 254 (
Vessel 254 mounts rod-type electrical heating element 256 indented upward into its floor (
Heating element 256 is configured to heat associated foods within food support vessel 250 to cooking temperatures.
Heating element 256 is time-duration and thermostatically regulated by control box 258 which is mounted on a forward lower portion of outer enclosure 252.
Magnetically coupled line cord 262 is disposed on the right side of control box 258, and is marked 263 to indicate that pushing on the plug will turn off the embodiment.
Removably mounted on a forward portion of outer enclosure 246, and mounted above control box 258, is removable debris collection cup 260. Debris collection cup 260, through accepting and condensing gaseous outflow from within liquid containment vessel 254, may help to filter out debris, including oils, greases, and orders from the gaseous outflow. Helping in this condensation and filtration are condensation surfaces 276.
Condensation surfaces 276 may comprise, by way of non-limiting and non-exhaustive examples, corrugated or other convoluted surfaces, perforated or non-perforated materials, plastics, metals, ceramics, stones, pebbles, metal wool, marbles, nonwoven plastics, woodchips, plant fibers, activated charcoal, desiccants, deodorizers, cloth, screening, perforated metal or plastic, or other suitable materials. These surfaces may be easy to clean such as in a dishwasher, or clothes washer, or sink, etc.
Debris collection cup 260 may also collect liquid overflowing out of liquid containment vessel 254 for later reuse or disposal or for other purposes.
Gaseous and liquid debris exiting liquid containment vessel 254 and into debris collection cup 260, pass through tubular exit orifice 266 which mounts screw-thread 268 compressively between, outer enclosure 252 and liquid containment vessel 254; and penetrates through hole 272 in outer enclosure 252 and hole 274 in liquid containment vessel 254.
“O” ring 270 (
Lid 278 is comprised of outer plastic lid 280 affixed to inner metal lid 282. As shown best in
Preventing or retarding output flow from the interior of food support vessel 250 thru seal 284 may produce beneficial cooking results by creating positive pressure within food support vessel 250, and by helping prevent the outflow of heat, moisture, juices, and flavors. Positive pressure also may help tenderize certain foods.
When placed on top of liquid containment vessel 254, metal lid 282 may also seal against the top side of the upper rim upper of liquid containment vessel 254 helping to prevent cooking liquid leakage, as best shown in
Liquid containment vessel 254 is generally cylindrical. Generally cylindrical herein shall include tubular shapes including, but not limited to, those having six or more regular or irregular sides as well as six or more sided polygonal tubes with soft or hard vertices.
Hood 264 is formed into the forward portion of plastic lid 280 and is configured to direct exhaust exiting through orifice 266 downward into debris collection cup 260.
Debris collection cup 260 may be translucent or transparent to allow users to view the quantity, quality, and identity of its debris content.
Lid latch 286 is rotatably 288 (
Rotating lid latch 286 clockwise 289 (
As best shown in
Engagement holes 314 and 316 respectively in the left and right sides of outer enclosure 252 (
Directly below the floor of food support vessel 250 is filter media 320, which is trapped between the underside of the floor of food support vessel 250, and the top side of the floor of snap-on filter retainer 322, as best shown in
Filter media 320 may take many forms. As non-limiting and non-exhaustive examples: it may be course or fine screening; cloth; nonwoven material such as steel wool or stainless steel wool; or cotton batting; particles such as sand, metal filings or gravel or activated charcoal particles of various sizes; materials impregnated with activated charcoal or other substances; filter paper; a whole rectangular paper towel (rectangular edges disposed on the outside of food support vessel 250); woven metal; or any other suitable material.
Holes 324 in the floor of filter retainer 322, in combination with filter media 320 and orifices 318 in the floor of food support vessel 250, regulate the flow of liquids and gasses into and out of food support vessel 250.
This regulation helps to suppress bubbling and splattering of hot cooking liquids outside of food support vessel 250 during cooking. It also provides a controlled cooking environment within food support vessel 250, by metering inflow of hot liquids and exhausting of expanded gasses and hot liquids.
Food support vessel 250 may be modified to accept food support shelves similar to food support shelves 224 in embodiment 182. This merely requires the addition of protuberances similar to protuberances 222 to the side walls of food support vessel 250. These shelves would be used in a similar manner, and perform a similar function, to those support shelves 224 in embodiment 182.
Use of embodiment 246 may take many forms. As a first non-limiting and non-exhaustive example, to fry a large food item such as Thanksgiving Day turkey 326, the user would first prepare the turkey in the conventional manner used for oven baking. That is, they would thaw the bird if it is frozen, completely wash and dry both the inside and outside of the bird, and cut off any excess skin.
They will then place the bird into food support vessel 250 either feet up or feet down, and place and lock lid 278 on top of food support vessel 250, and then slowly lower the combination into frying temperature cooking oil contained within liquid containment vessel 254, were it will remain for a period long enough for turkey 326 to cook.
After cooking is complete, food support vessel 250, along with its turkey contents, are lifted out of the hot cooking liquid contained within liquid containment vessel 254, and the ends of handle rods 296 and 298 are placed into engagement hole 314 and engagement hole 316 respectively. Placing food support vessel 250 in this position for a few seconds to more than a minute, allows excess liquid to drain away from turkey 326.
After such draining, turkey 326 may be removed from food support vessel 250 and served.
Marinades, brining, spices, and other food preparations may be used before, during, or after cooking has occurred.
After cooking, the contents of debris collection cup 260 may be removed and reused, or disposed of Debris collection cup 260, and condensation surfaces 276, food support vessel 250, lid 278 and liquid containment vessel 254 may all then be cleaned.
Embodiment 328 is fundamentally pliable sheet 334 which can be flexed into various useful forms.
Living hinge 346, disposed at the base of corner tab 336 makes insertion of tab 336 into one of the three slots (338, 340, 342) easier.
Embodiment 328 may be fabricated in many different ways. As a non-limiting and non-exhaustive examples, it may be die stamped or injection molded in 0.030″ thick polypropylene with a pebble finish on at least one side to facilitate cutting and cleaning.
Knife 348 in
Embodiments to deep fat fry comestibles, including large food items. Such embodiments potentially being versatile enough to at least: deep fry, steam, bake, slow cook, and boil foods. Embodiments utilizing a horizontal trough with radiused floors and sidewalls. Such embodiments comprising opposing parallel sidewalls and level floors, as well as comprising tapering sidewalls, and sloping floors, and combinations thereof. Embodiments comprising contained food support vessels immersed into frying temperature cooking liquid baths, as well as boiling water, as well as hot air. Foods cooked in multiple single immersions into hot cooking liquid, as well as foods cooked using a process where foods are cooked a single portion of the food at a time until the entire food is fully cooked. Automatic fryer cleaning systems, utilizing food support vessels which drain through filter media. Such systems automatically filtering cooking liquid during each use session. Such systems automatically filtering cooking liquids before debris the cooking liquids contain can contact and be deposited on: heat coils, thermal sensors, and oil containment vessels; thereby significantly easing cleanup. Contained food support vessels capped by lids which easily configure into closed and open positions. Unitary filter media configured to selectively remove debris and pollutants from both gasses and liquids exiting food support vessels. Various filtering media including common rectangular paper towel sheets. Reusable filter media of various types. High-capacity steaming apparatus. Condensation filtering into easy to empty and clean collection cups. Easy to clean and handle condensation filter media. Safety cooking liquid overflow protection into easily to empty and clean cups. Collection of overflowed cooking liquids for easy reuse or disposal. Simplified fryer construction. High cooking liquid efficiency embodiments utilizing minimal cooking liquid to cook both large and small food items, as well as to cook large and small amounts of unitary and plural foods. A versatile, compactable funnel which may double as a cutting and food preparation surface.
This application is a continuation-in-part of U.S. application Ser. No. 15/636,994, filed Jun. 29, 2017, which is a continuation-in-part of U.S. application Ser. No. 15/614,746, filed Jun. 6, 2017, which is a continuation of U.S. application Ser. No. 15/297,788, filed on Oct. 19, 2016, which is a continuation-in-part of U.S. application Ser. No. 15/258,453, filed Sep. 7, 2016. All of which are incorporated herein by reference.
Number | Date | Country | |
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Parent | 15297788 | Oct 2016 | US |
Child | 15614746 | US |
Number | Date | Country | |
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Parent | 15636994 | Jun 2017 | US |
Child | 15693810 | US | |
Parent | 15614746 | Jun 2017 | US |
Child | 15636994 | US | |
Parent | 15142072 | Apr 2016 | US |
Child | 15297788 | US |