Patent Publication Number: US-2022235289-A1

Title: Recirculating high pressure lipid (hpl) extractor, infuser and bonder, and system and method of use thereof

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application claims benefit of priority application U.S. Ser. No. 16/881,478 filed on May 22, 2020, entitled “Recirculating High Pressure Lipid (HPL) Extractor, Infuser, and Bonder, and System and Method of Use Thereof”, which is incorporated herein by reference in its entirety and claims the benefit of U.S. Provisional Ser. No. 62/899,842 filed on Sep. 13, 2019, entitled “High Pressure Lipid (HPL) Extractor, Infuser, and Bonder”, which is incorporated herein by reference in its entirety. 
    
    
     FIELD OF THE DISCLOSURE 
     The present disclosure is related to a means and method for the extraction and bonding of cannabis and other botanical extracts. More specifically, the present disclosure relates to a recirculating high pressure lipid (“HPL”) extractor, infuser and/or bonder, and a system and method of use thereof, for the extraction and bonding of cannabis and other botanical extracts with no solvents or chemicals. 
     BACKGROUND 
     Generally speaking, in biology and biochemistry, a lipid is a macrobiomolecule that is soluble in nonpolar solvents. Non-polar solvents are typically hydrocarbons used to dissolve other naturally occurring hydrocarbon lipid molecules that do not (or do not easily) dissolve in water, including fatty acids, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E, and K), monoglycerides, diglycerides, triglycerides, and phospholipids. The functions of lipids include storing energy, signaling, and acting as structural components of cell membranes. Lipids have applications in the cosmetic and food industries as well as in nanotechnology. Scientists sometimes define lipids as hydrophobic or amphiphilic small molecules. Although the term “lipid” is sometimes used as a synonym for fats, fats are a subgroup of lipids called triglycerides. Lipids also encompass molecules such as fatty acids and their derivatives (including tri-, di-, monoglycerides, and phospholipids), as well as other sterol-containing metabolites such as cholesterol. Although humans and other mammals use various biosynthetic pathways both to break down and to synthesize lipids, some essential lipids can&#39;t be made this way and must be obtained from the diet. 
     Lipids are insoluble in water and are commonly extracted from tissue, cells, or fluids using organic solvents. The efficiency of lipid extraction depends on the partitioning of different lipids into the organic phase and lipid composition of the sample. The most commonly used solvent systems for lipid extraction are known or standard protocols based on known or published methods. These and other solvent systems are routinely applied to a wide range of biological samples for lipid extraction. 
     The instant disclosure recognized the problem with these commonly used solvent system for lipid extractions which require solvents or chemicals for the extraction, infusion and/or bonding process of lipids. The use of these solvents or chemicals leads to the solvents or chemicals being present in the lipids being extracted, infused and/or bonded and thus results in an unnatural product with such commonly used solvent systems. In addition, the instant disclosure recognizes the need or desire for faster and more efficient lipid extraction processes. 
     Therefore, a need exists for a means, system and/or method for lipid extraction that is natural or does not require solvents or chemicals and is faster and more efficient than the known or commonly used solvent systems for lipid extraction. 
     The instant disclosure may be designed to address at least certain aspects of the problems or needs discussed above by providing a recirculating high pressure lipid extractor, infuser, and bonder, and method of use thereof. 
     SUMMARY 
     The present disclosure solves the aforementioned limitations of the currently available devices and methods of extraction, infusing and/or bonding, by providing a recirculating high pressure lipid extractor, infuser and bonder, and a method of use thereof. The disclosed device, system or method may be configured for extracting, infusing, and/or bonding cannabis and other botanical (i.e. Lavender, Rosemary, Citrus, Mint, etc.) extracts to Fat (i.e. MCT Oils, Hemp Oil, Butter, Butter Fat, all seed oils, olive oil, etc.). In general, the recirculating high pressure lipid extractor disclosed herein includes a kettle. The kettle has a sealed interior configured for pressurizing and heating a fluid mixture in the sealed interior. A flow funnel is positioned in a lower portion of the sealed interior of the kettle. A removable material basket is positioned on top of the flow funnel in the sealed interior of the kettle in an upper section. The removable material basket is configured to hold a material inside a flow-through interior of the removable material basket in the upper section of the sealed interior of the kettle. A drain and inlet port is at a bottom of the kettle in communication with the sealed interior of the kettle. A recirculation port is approximate a top of the kettle in communication with the sealed interior of the kettle. Wherein, when the fluid mixture is inserted into the sealed interior of the kettle, the recirculating high pressure lipid extractor is configured to pressurize and heat the fluid mixture and recirculate the pressurized and heated fluid mixture from the recirculation port approximate the top of the kettle into the drain and inlet port at the bottom of the kettle, where the pressurized and heated fluid mixture flows through the flow funnel, into the removable material basket and through the material positioned therein, and back out of the recirculation port. 
     In select embodiments of the disclosed recirculating high pressure lipid extractor disclosed herein, the fluid mixture can include water and fat, and the material in the removable material basket is a fat soluble plant matter that includes lipids. Wherein, when the pressurized and heated fluid mixture is recirculated through the kettle and the fat soluble plant matter is in the removable material basket, lipids from the fat soluble plant matter in the removable material basket can be extracted, infused, bonded, or combinations thereof, to the fat in the fluid mixture. 
     One feature of the disclosed recirculating high pressure lipid extractor disclosed herein may be that the recirculating high pressure lipid extractor may be configured for natural extraction, infusion and bonding of lipids from the fat soluble plant matter with no solvents or chemicals. 
     In select embodiments of the disclosed recirculating high pressure lipid extractor disclosed herein, the fat of the fluid mixture may include medium-chain triglycerides oils, hemp oil, butter, butter fat, all seed oils, olive oil, or combinations thereof, and the fat soluble plant matter can include cannabis or other botanical extracts including lavender extracts, rosemary extracts, citrus extracts, or mint extracts, or combinations thereof. Wherein, the natural extraction, infusion and bonding with no solvents or chemicals is configured for natural extraction, infusion and bonding of the cannabis, the other botanical extracts, or combinations thereof. 
     Another feature of the disclosed recirculating high pressure lipid extractor disclosed herein may be that the recirculating high pressure lipid extractor can be configured to heat and cool the fat in the fluid mixture as it recirculates reducing degradation of terpenes, flavonoids, and other cannabinoids. 
     Another feature of the disclosed recirculating high pressure lipid extractor disclosed herein may be that the recirculating high pressure lipid extractor can be configured to decarboxylate the cannabis, cannabis extracts, cannabis extract bonded fats, or combinations thereof. 
     In select embodiments of the disclosed recirculating high pressure lipid extractor disclosed herein, the kettle may be configured to operate at temperatures of 210° F. to 220° F. or at pressures of 15 ps to 50 psi. In select embodiments, the kettle may be configured to operate at temperatures of 210° F. to 220° F. and at pressures of 15 psi to 35 psi or at pressure of 40 psi to 45 psi. 
     In select embodiments of the disclosed recirculating high pressure lipid extractor disclosed herein, a recirculation pump may be included. The recirculation pump may be connected between the recirculation port approximate the top of the kettle and the drain and inlet port at the bottom of the kettle. Wherein the recirculation pump may be configured to increase pressure and recirculation of the fluid mixture in the kettle. In select embodiments, as an example, the recirculation pump may be case rated at  501   b.    
     Another feature of the disclosed recirculating high pressure lipid extractor disclosed herein may be that the kettle is configured to be mobile. 
     Another feature of the disclosed recirculating high pressure lipid extractor disclosed herein may be that the kettle is made from a stainless steel material. 
     Another feature of the disclosed recirculating high pressure lipid extractor disclosed herein may be that the kettle is configured to be scaled from 1 gallon to 5000 gallons. 
     In select embodiments of the disclosed recirculating high pressure lipid extractor disclosed herein the kettle may include a steam jacket. The steam jacket may be configured for heating the fluid mixture in the sealed interior of the kettle. The steam jacket of the kettle may include at least one feed port configured for feeding steam into the steam jacket of the kettle, and at least one return port for returning steam out of the steam jacket of the kettle. In select embodiments, the steam jacket of the kettle may include an upper steam jacket and a lower steam jacket. The upper steam jacket may be around the removable material basket in the upper section of the sealed interior of the kettle. The upper steam jacket may include at least one upper feed port configured for feeding steam into the upper steam jacket of the kettle, and at least one upper return port for returning steam out of the upper steam jacket of the kettle. The lower steam jacket may be around the flow funnel in the lower portion of the sealed interior of the kettle. The lower steam jacket may include at least one lower feed port configured for feeding steam into the lower steam jacket of the kettle, and at least one lower return port for returning steam out of the lower steam jacket of the kettle. In select embodiments, a temperature sensor port may be included with the steam jacket of the kettle. The temperature sensor port may be configured for sensing the temperature inside the kettle in the upper section and lower portion of the sealed interior. Whereby, the temperature sensor port may be configured to communicate with the steam jacket of the kettle for regulating the temperature of the fluid mixture inside the kettle. 
     In select embodiments of the disclosed recirculating high pressure lipid extractor disclosed herein, cooling coils may be included. The cooling coils may be configured for cooling the fluid mixture after it is pressurized, heated and recirculated through the sealed interior of the kettle. In select embodiments, the cooling coils may include a cooling coil water in connector, and a cooling coil water out connector. 
     In select embodiments of the disclosed recirculating high pressure lipid extractor disclosed herein, the removable material basket may include a plurality of holes around a bottom portion of the removable material basket. In other select embodiments, the removable material basket may include a removable lid with micron sized holes on a top of the removable material basket. In select embodiments, the removable lid may include lifting hooks configured for lifting the removable material basket out of the sealed interior of the kettle. In select embodiments of the removable material basket, a split trap door bottom may be included configured to open for removing material from the removable material basket. 
     In select embodiments of the disclosed recirculating high pressure lipid extractor disclosed herein, the sealed interior of the kettle may include a shelf. The shelf may be configured for holding the removable material basket on top of the flow funnel. 
     In select embodiments of the disclosed recirculating high pressure lipid extractor disclosed herein, the recirculation port may include a removable return arm. The removable return arm may be configured to be removed for inserting and removing the removable material basket. 
     In select embodiments of the disclosed recirculating high pressure lipid extractor disclosed herein, a removable stainless steel lid may be included. The removable stainless steel lid may be configured to seal the sealed interior of the kettle with a sealing flange including a double O-ring seal and wing type hold down bolts with hold down rods configured to seal the lid to the sealed interior of the kettle. In select embodiments, lifting points on the removable stainless steel lid may be included that are configured for lifting the kettle thereby making the recirculating high pressure lipid extractor mobile. In other select embodiments, a pressure release valve may be included in the removable stainless steel lid that are configured for releasing pressure over a certain threshold of the sealed interior of the kettle. In other select embodiments, a vent valve may be included in the removable stainless steel lid configured for venting the sealed interior of the kettle. In other select embodiments, a clean in place port may be included in the removable stainless steel lid configured for cleaning the sealed interior of the kettle. In other select embodiments, a liquid input port may be included in the removable stainless steel lid configured for inserting the fluid mixture into the sealed interior of the kettle. In other select embodiments, a pressure sensor port may be included in the removable stainless steel lid configured for sensing the pressure in the sealed interior of the kettle. In other select embodiments, a sample finished product port may be included in the removable stainless steel lid configured for sampling the lipids extracted, infused, bonded, or combinations thereof, to the fat in the fluid mixture. 
     In another aspect, the instant disclosure embraces a system for lipid extraction, infusion and bonding. The disclosed system generally includes utilizing the recirculating high pressure lipid extractor in any of the various embodiments or combinations of embodiments shown and/or described herein. As such, the system for lipid extraction, infusion and bonding may generally include the recirculating high pressure lipid extractor configured for extracting, infusing and bonding lipids from a material with no solvents or chemicals via a pressurized and heated fluid mixture, a recirculation pump, a heater, a holding tank, a cooler, and a control panel. The pump may be configured for recirculating the pressurized and heated fluid mixture through the recirculating high pressure lipid extractor. The heater may be configured for heating the recirculating high pressure lipid extractor. The holding tank may be configured to hold and chill the fluid mixture with extracted, infused and bonded lipids. The cooler may be configured to chill the fluid mixture with extracted, infused and bonded lipids in the holding tanks. The control panel may be configured to provide control for proper operation, temperature, pressure ranges, process timing and/or material flow of the system. 
     In select embodiments of the system for lipid extraction, infusion and bonding disclosed herein, three of the recirculating high pressure lipid extractors may be included along with three recirculation pumps, one recirculation pump for each of the three recirculating high pressure lipid extractors. As such, the system for lipid extraction, infusion and bonding disclosed herein may include providing the recirculating high pressure lipid extractor in any of the various embodiments or combination of embodiments shown and/or described herein. In addition, three holding tanks may be included. In select embodiments of the system for lipid extraction, infusion and bonding disclosed herein, the heater may be a steam boiler configured to provide steam in a steam jacket of each of the three recirculating high pressure lipid extractors for heating each of the three recirculating high pressure lipid extractor. In select embodiments of the system for lipid extraction, infusion and bonding disclosed herein, the cooler may be a chiller and screw press configured to circulate ethanol and chill it to −40° C. in 45 minutes, where the circulation will continue for 15 extra minutes to drop the fats and lipids out of suspension prior to pumping through filters. In other select embodiments, a glycol chiller may be installed outdoors configured to chill the holding tanks. 
     In another aspect, the instant disclosure embraces a method for lipid extraction, infusion and bonding. In general, the instant method for lipid extraction, infusion and bonding includes utilizing the recirculating high pressure lipid extractor in any of the various embodiments or combination of embodiments shown and/or described herein. As such, the method for lipid extraction, infusion and bonding disclosed herein may include providing the recirculating high pressure lipid extractor in any of the various embodiments or combination of embodiments shown and/or described herein. The provided recirculating high pressure lipid extractor may be configured for extracting, infusing and bonding lipids from a material with no solvents or chemicals via a pressurized and heated fluid mixture. With the provided recirculating high pressure lipid extractor, the method may further include the steps of: filling the kettle with the fluid mixture; removing the removable material basket from the kettle; inserting the material into the removable material basket; putting the removable material basket with the inserted material back into the sealed interior of the kettle; sealing the sealed interior of the kettle; heating the kettle thereby generating an internal pressure; and recirculating the heated and pressurized fluid mixture upward through the flow funnel where it passes into the removable material basket and through the material inside the removable material basket, out of the removable material basket, into the recirculation port and back into the drain and inlet port. Wherein, when the fluid mixture includes water and fat and the material in the removable material basket is a fat soluble plant matter that includes lipids, when the pressurized and heated fluid mixture is recirculated through the kettle and the fat soluble plant matter is in the removable material basket, lipids from the fat soluble plant matter in the removable material basket are extracted, infused, bonded, or combinations thereof, to the fat in the fluid mixture. Whereby, the recirculating high pressure lipid extractor is configured for natural extraction, infusion and bonding of lipids from the fat soluble plant matter with no solvents or chemicals. 
     In select embodiments of the disclosed method for lipid extraction, infusion and bonding, the step of heating the kettle thereby generating an internal pressure may include the steps of heating the kettle to approximately 210° F. to 220° F., and the step of thereby generating an internal pressure of approximately 15-35 psi or between 40-45 psi. 
     In select embodiments of the disclosed method for lipid extraction, infusion and bonding, the step of recirculating the heated and pressurized fluid mixture may include utilizing a recirculating pump configured to increase pressure and recirculation of the fluid mixture in the kettle. 
     In select embodiments of the disclosed method for lipid extraction, infusion and bonding, the method may further include continuing the cycle for a predetermined amount of time ranging from 10 minutes to 120 minutes. When the cycle is complete: the method may further include pumping the fluid mixture through a plate heat exchanger that is chilled by both city water and glycol; pumping the fluid mixture to a separation tank; and drained the water, thereby leaving the bonded fat to be transferred to storage vessels; and controlling the lipid extraction, infusion and bonding via a central control panel configured to provide proper operation, temperature, pressure ranges, process. 
     The foregoing illustrative summary, as well as other exemplary objectives and/or advantages of the disclosure, and the manner in which the same are accomplished, are further explained within the following detailed description and its accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present disclosure will be better understood by reading the Detailed Description with reference to the accompanying drawings, which are not necessarily drawn to scale, and in which like reference numerals denote similar structure and refer to like elements throughout, and in which: 
         FIG. 1  is a front view of a high pressure lipid extractor, infuser and/or bonder according to select embodiments of the instant disclosure; 
         FIG. 2  is a cross-sectional perspective view of the high pressure lipid extractor, infuser and/or bonder of  FIG. 1 ; 
         FIG. 3  is another cross-sectional perspective view of the high pressure lipid extractor, infuser and/or bonder of  FIG. 1  showing the removable material basket removed from the sealed interior of the kettle; 
         FIG. 4  is a schematic representation of the high pressure lipid extractor, infuser and/or bonder of  FIG. 1  showing the recirculating pump in line between the recirculation port and the drain and inlet port; 
         FIG. 5  is an environmental perspective view of a system for lipid extraction, infusion and bonding according to select embodiments of the instant disclosure; 
         FIG. 6  is a schematic representation of another embodiment of the high pressure lipid extractor, infuser and/or bonder according to select embodiments of the instant disclosure; 
         FIG. 7  is a schematic representation of another embodiment of the high pressure lipid extractor, infuser and/or bonder according to select embodiments of the instant disclosure; 
         FIG. 8  is a schematic representation of another embodiment of the high pressure lipid extractor, infuser and/or bonder according to select embodiments of the instant disclosure; and 
         FIG. 9  is a flow chart of a method for lipid extraction, infusion and bonding according to select embodiments of the instant disclosure. 
     
    
    
     It is to be noted that the drawings presented are intended solely for the purpose of illustration and that they are, therefore, neither desired nor intended to limit the disclosure to any or all of the exact details of construction shown, except insofar as they may be deemed essential to the claimed disclosure. 
     DETAILED DESCRIPTION 
     Referring now to  FIGS. 1-9 , in describing the exemplary embodiments of the present disclosure, specific terminology is employed for the sake of clarity. The present disclosure, however, is not intended to be limited to the specific terminology so selected, and it is to be understood that each specific element includes all technical equivalents that operate in a similar manner to accomplish similar functions. Embodiments of the claims may, however, be embodied in many different forms and should not be construed to be limited to the embodiments set forth herein. The examples set forth herein are non-limiting examples and are merely examples among other possible examples. 
     The present disclosure solves the aforementioned limitations of the currently available devices and methods of extraction, infusing and/or bonding, by providing recirculating high pressure lipid (“HPL”) extractor  10  (see  FIGS. 1-4 and 6-8 ), system  200  (see  FIG. 5 ) for lipid extraction, infusion and/or bonding utilizing HPL extractor  10 , and method  300  (see  FIG. 9 ) for lipid extraction, infusion and/or bonding. The disclosed HPL extractor  10 , system  200  and/or method  300  may be configured for, but is not limited to, extracting, infusing, and/or bonding cannabis and other botanical (i.e. Lavender, Rosemary, Citrus, Mint, etc.) extracts to Fat (i.e. MCT Oils, Hemp Oil, Butter, Butter Fat, all seed oils, olive oil, etc.). 
     Referring now to  FIGS. 1-4 , the present disclosure overcomes the above-mentioned disadvantages and meets the recognized need for such an apparatus, system or method by providing of the disclosed recirculating high pressure lipid (“HPL”) extractor, infuser and/or bonder  10 . The disclosed recirculating high pressure lipid extractor, infuser and/or bonder  10  may be referred to herein as just recirculating high pressure lipid extractor  10  or just HPL extractor  10 . The present disclosure of HPL extractor  10  may solve the aforementioned limitations of the currently available devices, systems or methods. Recirculating high pressure lipid extractor disclosed herein may generally include kettle  12 . Kettle  12  may be for providing a vessel for processing material  26  at an elevated temperature and pressure for lipid extraction, infusion and/or bonding. As such, kettle  12  may have sealed interior  14  configured for pressurizing and heating fluid mixture  16  in sealed interior  14 . Flow funnel  18  may be positioned in lower portion  20  of sealed interior  14  of kettle  12 . Flow funnel  18  may be for directing the recirculating material  26  through removable material basket  22  positioned on top of flow funnel  18  in sealed interior  14  of kettle  12  in upper section  24 . Flow funnel  18  may be a stainless steel funnel. Thus, removable material basket  22  may be configured to hold material  26  inside flow-through interior  28  of removable material basket  22  in upper section  24  of sealed interior  14  of kettle  12 . Drain and inlet port  30  may be at bottom  32  of kettle  12 . As an example, drain and inlet port  30  may be a 2 inch inlet port ad main drain valve. Drain and inlet port  30  may serve dual purposes. During operation, drain and inlet port  30  may be utilized to input the recirculating fluid mixture  16  into bottom  32  of sealed interior  14  of kettle  12 . After operation, drain and inlet port  30  may be utilized for draining sealed interior  14  of kettle  12 . Drain and inlet port  30  may thus be in communication with sealed interior  14  of kettle  12 . Recirculation port  34  may be approximate top  36  of kettle  12  and may be in communication with sealed interior  14  of kettle  12 . Wherein, when fluid mixture  16  is inserted into sealed interior  14  of kettle  12 , recirculating HPL extractor  10  may be configured to pressurize and heat fluid mixture  16  and recirculate the pressurized and heated fluid mixture from recirculation port  34  approximate top  36  of kettle  12  into drain and inlet port  30  at bottom  32  of kettle  12 , where pressurized and heated fluid mixture  16  flows through flow funnel  18 , into removable material basket  22  and through material  26  positioned therein, and back out of recirculation port  34 . 
     Kettle  12  of recirculating HPL extractor  10  disclosed herein may be designed and configured to operate at various desired temperatures and resulting pressures. In select possibly preferred embodiments, kettle  12  may be configured to operate at temperatures of 210° F. to 220° F. or at resulting pressures of 15 ps to 50 psi. In select embodiments, kettle  12  may be configured to operate at temperatures of 210° F. to 220° F. and at pressures of 15 psi to 35 psi or at pressures of 40 psi to 45 psi. In select embodiments, kettle  12  may be made from stainless steel material  54 , including, but not limited to a 304 stainless steel material pressure rated to 60 psi. As an example, kettle  12  may have an ⅛ inch stainless steel cylinder wall. Kettle  12  may be designed and configured to be scaled to any desired size and dimensions, including, but not limited to, from 1 gallon to 5000 gallons. 
     Recirculating pump  52  may be included with select embodiments of recirculating HPL extractor  10 . See  FIGS. 4 and 6-9 . Recirculation pump  52  may be for aiding in recirculating fluid mixture  16  through sealed interior  14  of kettle  12  and for increasing pressure inside of sealed interior  14  of kettle  12 . Recirculation pump  52  may be connected between recirculation port  34  approximate top  36  of kettle  12  and drain and inlet port  30  at bottom  32  of kettle  12 . Wherein, recirculation pump  52  may be configured to increase pressure and recirculation of fluid mixture  16  in kettle  12 . In select embodiments, as an example and clearly not limited thereto, recirculation pump  52  may be case rated at  501   b , may include 316 stainless steel, may have a max temperature of 260° F., may be flow rated at 17 GPM, and/or may have a stainless steel housing material. 
     Another feature of the disclosed recirculating HPL extractor  10  disclosed herein may be that kettle  12  can be configured to be mobile. This feature may allow HPL extractor  10  to be transferred to various locations inside or outside of a processing facility or plant. In select embodiments, HPL extractor  10  may include lifting points  110  on top  36  of kettle  12  for aiding in moving or transporting HPL extractor  10 . Lifting points  110  may be included on removable lid  100  of kettle  12 . Kettle  12  may be sized and scaled as desired. As an example embodiment, and clearly not limited thereto, kettle  12  may have a fill volume of approximately 100 gallons with a 20 gallon headspace. 
     Kettle  12  of recirculating HPL extractor  10  may be heated by various devices and methods configured for heating fluid mixture  16  inside of sealed interior  14  of kettle  12 . In select embodiments, as shown in the Figures, steam jacket  56  may be included around kettle  12  for heating fluid mixture  16  inside of sealed interior  14  of kettle  12 . Steam jacket  56  may be a channel or series of channels around kettle  12  for inclosing steam around kettle  12 . Steam jacket  56  may include at least one feed port  58  configured for feeding steam into steam jacket  56  of kettle  12 , and at least one return port  60  for returning steam out of steam jacket  56  of kettle  12 . In select embodiments, steam jacket  56  of kettle  12  may include upper steam jacket  62  and/or lower steam jacket  68 . Upper steam jacket  62  may be around removable material basket  22  in upper section  24  of sealed interior  14  of kettle  12 . Upper steam jacket  62  may include at least one upper feed port  64  configured for feeding steam into upper steam jacket  62  of kettle  12 , and at least one upper return port  66  for returning steam out of upper steam jacket  62  of kettle  12 . Lower steam jacket  68  may be around flow funnel  18  in lower portion  20  of sealed interior  14  of kettle  12 . Lower steam jacket  68  may include at least one lower feed port  70  configured for feeding steam into lower steam jacket  68  of kettle  12 , and at least one lower return port  72  for returning steam out of lower steam jacket  68  of kettle  12 . In select embodiments, temperature sensor port  74  may be included with steam jacket  56  of kettle  12 . Temperature sensor port  74  may be configured for sensing the temperature inside kettle  12  in upper section  24  and/or lower portion  20  of sealed interior  14  of kettle  12 . Temperature sensor port  74  may include any type of form of temperature sensor positioned therein for sensing the temperature inside kettle  12  in upper section  24  and/or lower portion  20  of sealed interior  14  of kettle  12 . Whereby, temperature sensor port  74  may be configured to communicate with steam jacket  56  of kettle  12  for regulating the temperature of fluid mixture  16  inside kettle  12 . 
     Cooling coils  76  may also be included with or around recirculating HPL extractor  10 . Cooling coils  76  may be configured for cooling or chilling fluid mixture  16  after it has been processed in recirculating HPL extractor  10 . Thus, cooling coils  76  may be configured for cooling fluid mixture  16  after it is pressurized, heated and recirculated through sealed interior  14  of kettle  12 . In select embodiments, the cooling coils may include a cooling coil water in connector, and a cooling coil water out connector. As shown in  FIG. 5 , cooling coils  76  may be cooler  206 , chiller and screw press  207 , glycol chiller  210 , or combinations thereof. 
     Referring now specifically to  FIG. 3 , the details of removable material basket  22  are shown. In select embodiments of the disclosed recirculating HPL extractor  10 , as shown in the Figures, removable material basket may include plurality of holes  82  around bottom portion  84  of removable material basket  22 . Holes  82  may be for allowing fluid mixture  16  to flow through material  26  positioned inside of removable material basket  22 . Holes  82  may also provide mini flow protection for recirculation pump  52 . Holes  82  may be configured and sized based on material  26  being processed. Removable material basket  22  may include removable lid  86 . In select embodiments, removable lid  86  may include micron sized holes  88  on top  90  of removable material basket  22 . These micron sized holes  88  may be designed and configured to maintain material  26  inside of removable material basket  22  while allowing fluid mixture  16  with lipids from material  26  extracted, infused, and/or bonded to fats in fluid mixture  16  to flow freely out of removable material basket  22 . In select possibly preferred embodiments, micron sized holes  88  may be, but are clearly not limited thereto, between 20-240 microns, and may preferably be around or equal to 50 microns. In select embodiments, removable lid  86  of removable material basket  22  may include lifting hooks  92  configured for lifting removable material basket  22  out of sealed interior  14  of kettle  12 . In select embodiments of removable material basket  22 , split trap door bottom  94  may be included. See  FIGS. 2 and 3 . Split trap door bottom  94  may be configured to open for easily removing material from the removable material basket  22  after processing. The purpose of removable material basket  22  may be to speed up and create ease when loading and unloading material into recirculating HPL extractor  10 . Removable material basket  22  may also allow for easier cleaning of the unit. As an example, and clearly not limited thereto, removable material basket  22  can hold from 0-1000 pounds of material depending on size needed for kettle  12 . As such, each removable material basket  22  can be built to suit any size of recirculating HPL extractor  10 . As an example, and clearly not limited thereto, removable material basket may have a volume of 4.25 cubic feet and/or may have an estimated volume requirement for 125 pounds chopped hemp. 
     Referring now to  FIGS. 2 and 3 , in select embodiments of the disclosed recirculating HPL extractor  10  disclosed herein, sealed interior  14  of kettle  12  may include shelf  96 . Shelf  96  may be configured for holding removable material basket  22  on top of flow funnel  18 . As shown in these Figures, shelf  96  may be a protrusion around the entire sealed interior  14  of kettle  12  designed and configured to position removable material basket  22  on top of flow funnel  18 . 
     Referring to  FIGS. 2-4 , in select embodiments of the disclosed recirculating HPL extractor  10 , disclosed herein, recirculation port  34  may include removable return arm  98 . Removable return arm  98  may be configured to be removed for inserting and removing removable material basket  22 . As an example, and clearly not limited thereto, recirculation port  34  and removable return arm may be a 2 inch recirculation pipe. 
     As shown in the  FIGS. 1-4 and 6-8 , removable lid  100  may be included on kettle  12  of recirculating HPL extractor  10 . Removable lid  100  may be made of a stainless steel material similar to stainless steel material  54  of kettle  12 . Removable stainless steel lid  100  may be configured to close and seal sealed interior  14  of kettle  12  while being openable or removable for allowing access to sealed interior  14  of kettle  12 . Removable lid  100  may be sealed to sealed interior  14  of kettle  12  by any means. In select embodiments, as shown in the Figures, removable lid  100  may be sealed with sealing flange  102 . Sealing flange  102  may including double O-ring seal  104  and wing type hold down bolts  106  with hold down rods  108  configured to seal lid  100  to sealed interior  14  of kettle  12 . In select embodiments, lifting points  110  on removable stainless steel lid  100  may be included that are configured for lifting kettle  12  thereby making recirculating HPL extractor mobile. In other select embodiments, pressure release valve  112  may be included, but is not limited to, in removable stainless steel lid  100 . Pressure release valve  112  may be configured for releasing pressure over a certain threshold of sealed interior  14  of kettle  12  for safety purposes. In select embodiments, as an example and clearly not limited thereto, pressure release valve could be configured to release pressure at 50 psi and greater. In other select embodiments, vent valve  114  may be included, but not limited to, in removable stainless steel lid  100 . Vent valve  114  may be configured for venting sealed interior  14  of kettle  12 . Vent valve  114  may be a ½ inch vent. In other select embodiments, clean in place port  116  may be included, but not limited to, in removable stainless steel lid  100 . Clean in place port  116  may be configured for cleaning sealed interior  14  of kettle  12 . In other select embodiments, liquid input port  118  may be included, but not limited to, in removable stainless steel lid  100 . Liquid input port  118  may be configured for inserting fluid mixture  16  into sealed interior  14  of kettle  12 . In other select embodiments, pressure sensor port  120  may be included, but not limited to, in removable stainless steel lid  100 . Pressure sensor port  120  may be configured for sensing pressure in sealed interior  14  of kettle  12 . In other select embodiments, sample finished product port  122  may be included in, but not limited to, removable stainless steel lid  100 . Sample finished product port  122  may be configured for sampling the lipids extracted, infused, bonded, or combinations thereof, to the fat in fluid mixture  16 . As an example, and clearly not limited thereto, sample finished product port  122  may be a ¼ inch sample point. 
     Referring now to  FIGS. 6-8 , preliminary drawings are shown of previous versions of select embodiments of the disclosed recirculating HPL extractor  10  and the progress and changes made in development. Applicant notes that  FIGS. 1-4  are version 3 of the disclosed recirculating HPL extractor  10  and are possibly preferred embodiments of the disclosed recirculating HPL extractor  10 . 
     Referring now specifically to  FIG. 5 , in another aspect, the instant disclosure embraces system  200  for lipid extraction, infusion and/or bonding. The disclosed system  200  generally includes utilizing recirculating HPL extractor  10 , or multiple recirculating HPL extractors  10  in any of the various embodiments or combinations of embodiments shown and/or described herein. As such, system  200  for lipid extraction, infusion and/or bonding may generally include recirculating HPL extractor  10 , or multiple recirculating HPL extractors  10 , configured for extracting, infusing and/or bonding lipids from material  26  with no solvents or chemicals via a pressurized and heated fluid mixture  16 , recirculation pump  52 , heater  202 , holding tank  204 , cooler  206 , and control panel  208 . Recirculating pump  52  may be configured for recirculating the pressurized and heated fluid mixture  16  through recirculating HPL extractor  10 . Heater  202  may be configured for heating recirculating HPL extractor  10 . Holding tank  204  may be configured to hold and chill the fluid mixture with extracted, infused and bonded lipids. As examples, and clearly not limited thereto, holding tanks  204  may be made from 304 stainless steel, be pressure rated to 15 psi, be glycol jacketed, include shadowless side manway, have a 100 gallon capacity, have a clean in place arm and spray ball, and/or combinations thereof. The cooler may be configured to chill fluid mixture  16  with extracted, infused and bonded lipids in holding tanks  204 . Control panel  208  may be configured to provide control for proper operation, temperature, pressure ranges, process timing and/or material flow of system  200 . Control panel  208  may include control for all pumps, valves, and steam zones. Control panel  208  may be, but is not limited to, a 12.1 inch touch screen with a color graphic interface. Kettle  12  may be controlled by a motorized variable position steam valve. Glycol zone controls the plate heat exchanger. In addition, all temperature probes or sensors and valve position signals may be wired to control panel  208 . 
     As shown in  FIG. 5 , in select embodiments of the system for lipid extraction, infusion and bonding disclosed herein, three recirculating HPL extractors  10  may be included along with three recirculation pumps  52 , one recirculation pump  52  for each of the three recirculating HPL extractors  10 . As such, system  200  for lipid extraction, infusion and/or bonding disclosed herein may include providing 3 recirculating HPL extractor  10  in any of the various embodiments or combination of embodiments shown and/or described herein. In addition, three holding tanks  204  may be included to handle the processed fluid mixture  16  from each of the recirculating HPL extractors  10 . In select embodiments of system  200  for lipid extraction, infusion and/or bonding disclosed herein, heater  202  may be steam boiler  203  configured to provide steam to steam jacket  56  of each of the three recirculating HPL extractors  10  for heating each of the three recirculating HPL extractors  10 . As an example, and clearly not limited thereto, the boiler  203  may be a 10 HP pressure steam boiler provided by the Columbia Boiler Company of Pottstown, Pa. and have MPH-10 steam gas fired with CRT-7 feed system, and a BS-2 blowdown separator. In select embodiments of the system  200  for lipid extraction, infusion and/or bonding disclosed herein, cooler  206  may be chiller and screw press  207  configured to circulate ethanol and chill it to −40° C. in 45 minutes, where the circulation will continue for 15 extra minutes to drop the fats and lipids out of suspension prior to pumping through filters. As an example, and clearly not limited thereto, screw press  207  may be a CP-6 vincent type screw press with a 5 HP motor, VFD, 250+ pounds per hour, a 152 micron screen minimum, a stand, and/or combinations thereof. A feeder screw conveyor and hopper may be included, and may have, but is not limited to, a 3 HP motor, VFD, be mounted to the screw press, and/or the hopper may hold 120 pounds of biomass. In addition a grant buffer tank may be included to collect and transfer liquids from the press to the process. The gran buffer tank may have a 16 G capacity, and may have sensor ports and legs. In other select embodiments, glycol chiller  210  may be installed outdoors configured to aid in chilling the holding tanks  204 . As an example, and clearly not limited thereto, glycol chiller  210  may be a 9 HP chiller with 71968 BTU capacity. 
     Referring now to  FIG. 9 , in another aspect, the instant disclosure embraces method  300  for lipid extraction, infusion and/or bonding. In general, method  300  for lipid extraction, infusion and/or bonding may include utilizing recirculating HPL extractor  10  or multiple recirculating HPL extractors  10 , in any of the various embodiments or combination of embodiments shown and/or described herein. As such, method  300  for lipid extraction, infusion and/or bonding disclosed herein may include step  302  of providing recirculating HPL extractor  10 , or multiple recirculating HPL extractors  10 , in any of the various embodiments or combination of embodiments shown and/or described herein. The provided recirculating HPL extractor  10  may be configured for extracting, infusing and/or bonding lipids from material  26  with no solvents or chemicals via a pressurized and heated fluid mixture  16 . With the provided HPL extractor(s)  10 , the method may further include the steps of: step  304  of removing removable material basket  22  from kettle  12 ; step  306  of inserting material  26  into removable material basket  22 ; step  308  of putting the removable material basket  22  with the inserted material  26  back into sealed interior  14  of kettle  12 ; step  310  of filling sealed interior  14  of kettle  12  with fluid mixture  16 ; step  312  of sealing sealed interior  14  of kettle  12 ; step  314  of heating kettle  12  thereby generating an internal pressure; and step  316  of recirculating the heated and pressurized fluid mixture  16  upward through flow funnel  18  where it passes into removable material basket  22  and through material  26  inside removable material basket  22 , out of removable material basket  22 , into recirculation port  34  and back into drain and inlet port  30  via recirculation pump  52 . Wherein, when fluid mixture  16  includes water and fat and material  26  in removable material basket  22  is a fat soluble plant matter that includes lipids, when pressurized and heated fluid mixture  16  is recirculated through kettle  12  and the fat soluble plant matter is in removable material basket  22 , lipids from the fat soluble plant matter in removable material basket  22  are extracted, infused, bonded, or combinations thereof in step  318  to the fat in fluid mixture  16 . Whereby, recirculating HPL extractor  10  is configured for natural extraction, infusion and bonding in step  320  of lipids from the fat soluble plant matter with no solvents or chemicals. In select embodiments of method  300  for lipid extraction, infusion and/or bonding, step  314  of heating kettle  12  thereby generating an internal pressure may include the steps of: step  322  of heating the kettle to approximately 210° F. to 220° F., and step  324  of thereby generating an internal pressure of approximately 15-35 psi or between 40-45 psi. In select embodiments of method  300  for lipid extraction, infusion and/or bonding, step  316  of recirculating the heated and pressurized fluid mixture  16  may include step  317  of utilizing recirculating pump  52  configured to increase pressure and recirculation of fluid mixture  16  in kettle  12 . In select embodiments of method  300  for lipid extraction, infusion and/or bonding, method  300  may further include step  326  of continuing the cycle for a predetermined amount of time, including, but not limited to, ranging from 10 minutes to 120 minutes. When the cycle is complete: method  300  may further include the step  328  of cooling fluid mixture  16  through a plate heat exchanger that is chilled by both city water and glycol; step  330  of pumping fluid mixture  16  to separation tank  204 ; and step  332  of draining the water from fluid mixture  16 , thereby leaving the bonded fat to be transferred to storage vessels; and step  334  of controlling the lipid extraction, infusion and/or bonding via central control panel  208  configured to provide proper operation, temperature, pressure ranges, process, etc. 
     EXAMPLES 
     Referring to the embodiments of recirculating HPL extractor  10  in  FIGS. 1-4 , system  200  of  FIG. 5  and method  300  of  FIG. 9  for lipid extraction, infusion and/or bonding, an example process could process three 125 pound batches of hemp. Each batch could be blended with 100 gallons of fluid mixture  16  with a carrier oil and water. 
     A system  200  has been designed based on the setup shown in  FIG. 5 . Kettle  12  will be filled with fluid mixture  16  with a blend of water and the desired fat, and removable material basket  22  can be filled with material  26  to be processed. With removable material basket  22  returned to kettle  12  and lid  100  securely closed, the steam heated kettle  12  will be heated to approximately 210° F.-220° F. generating an internal pressure of approximately 15-35 psi (not to exceed 50 psi.). The pressure and recirculating pump  52  will move the water/fat mixture upward through flow funnel  18 , and as this passes through removable material basket  22 , the fats will bond with the fat soluble organic compounds. Recirculating pump  52 , along with the rising pressure in lower portion  20  of the tank, moves the water/fat mixture into the upper section  24 , through removable return arm  98 , and back into kettle  12 . This cycle will continue for a predetermined amount of time, ranging from 10 minutes to 120 minutes. When this cycle is complete, the water/fat mixture will be pumped through a plate heat exchanger  207  that is chilled by both city water and glycol via glycol chiller  210 . The plate heat exchanger  207  may be designed to circulate the ethanol and chill it to 40° C. in 45 minutes. The circulation could continue for 15 extra minutes to drop the fats and lipids out of suspension prior to pumping through the filters. The plate heat exchanger  207  may be made from 316 stainless steel and/or may include a stainless frame. The water/fat mixture will be pumped to a separation tank  204  where the water will be drained, leaving the bonded fat to be transferred to storage vessels. System  200  will be controlled via central control panel  208  to ensure proper operation, temperature and pressure ranges, process timing, and material flow. 
     The following is an example steps for operation:
         fill kettle  12  with proprietary blend of water and desired fat for fluid mixture  16 ;   with removable material basket  22  removed, fill with desired amount of material  26 ;   connect lifting apparatus to removable material basket  22  at the lifting hooks  92  locations;   using lifting apparatus, place removable material basket  22  in kettle  12 ;   secure hold down rods  108 ;   replace removable return arm  98 ;   replace removable lid  100  on kettle  12 ;   secure removable lid  100  with wing type hold down bolts  106 ;   turn unit on using the control panel  208 ;   run cycle;   after cycle ends, unit must cool for specified amount of time;   release removable lid  100  by removing wing type hold down bolts  106 ;   remove removable return arm  98  and place in cleaning area;   remove hold down rods  108  and place in cleaning area;   connect lifting apparatus to removable material basket  22  at lifting hooks  92  locations;   using lifting apparatus, place removable material basket  22  in designated press area;   empty contents in drain bins;   utilize lifting apparatus move removable material basket  22  to cleaning area; and   pressure wash internal components of kettle  12  to insure cleanliness.       

     In operation, after the recirculating HPL extractor  10  has been loaded with material  26  to be processed and fluid mixture  16  with fat and water and has been turned on, the process begins. The recirculating HPL extractor  10  can be used for any fat soluble organic compound deriving from organic matter. Kettle  12  may operate at 210° F. to 220° F. and at normal operation will create between 15 psi and 35 psi, or between 40 psi to 45 psi of pressure internally. Heating may be achieved using a heat element and/or steam jacket  56  around kettle  12 . To assist in the movement of fluid mixture  16  (fat/water mixture) through removable material basket  22  and to allow for the recirculation of kettle  12 , recirculating pump  52  may be placed in line between recirculation port  34  and drain and inlet port  30 . 
     Whereby, fluid mixture  16  (water/fat) may be heated to 210° F. to 220° F. As the water of fluid mixture  16  reaches its boiling point, pressure builds in kettle  12 . The pressurized kettle  12  then pushes fluid mixture  16  through flow funnel  18 . As the fluid mixture  16  passes through removable material basket  22 , the fats from fluid mixture  16  may bond directly to the fat soluble organic compounds of material  26 . The pressure in kettle  12  then moves the now bonded fluid mixture  16  through removable return arm  98  and out of recirculation port  34  through recirculating pump  52 , then back into kettle  12  via drain and inlet port  30 . This cycle may continue for a predetermined amount of time that can range from 10 minutes to 120 minutes depending on the organic material being used as material  26 . After the cycle finishes, the bonded fluid mixture  16  either remains in kettle  12  to cool or is pumped to holding tanks  204  to cool. The kettle cooling coils  76  will be in operation during this time to cool the bonded fluid mixture  16 . After cooled, the bonded fluid mixture  16  will have separated prior to draining. Water will be drained from the mixture through drain and inlet port  30  leaving the bonded fat to be placed in vessels. 
     The fluid mixture  16  used in recirculating HPL extractor  10 , system  200  and/or method  300  may be any desired fluid mixture for lipid extraction and/or natural lipid extraction with no solvents or chemicals. In addition, material  26  to be processed in recirculating HPL extractor  10 , system  200  and/or method  300  may be any desired material or the like. In select embodiments, fluid mixture  16  can include water and fat, and material  26  in removable material basket  22  may be a fat soluble plant matter that includes lipids. Wherein, when the pressurized and heated fluid mixture  16  is recirculated through kettle  12  and the fat soluble plant matter is in removable material basket  22 , lipids from the fat soluble plant matter in the removable material basket  22  can be extracted, infused, bonded, or combinations thereof, to the fat in the fluid mixture. 
     One feature of the disclosed recirculating HPL extractor  10 , system  200  and/or method  300  disclosed herein may be that they can be configured for natural extraction, infusion and bonding of lipids from the fat soluble plant matter with no solvents or chemicals. In select example embodiments of recirculating HPL extractor  10 , and clearly not limited thereto, the fat of the fluid mixture  16  may include medium-chain triglycerides oils, hemp oil, butter, butter fat, all seed oils, olive oil, or combinations thereof, and the fat soluble plant matter can include cannabis or other botanical extracts including lavender extracts, rosemary extracts, citrus extracts, or mint extracts, or combinations thereof. Wherein, the natural extraction, infusion and bonding with no solvents or chemicals is configured for natural extraction, infusion and bonding of the cannabis, the other botanical extracts, or combinations thereof. 
     Another feature of the disclosed recirculating HPL extractor  10 , system  200  and/or method  300  disclosed herein may be that recirculating HPL extractor  10 , system  200  and/or method  300  can be configured to heat and cool the fat in fluid mixture  16  as it recirculates reducing degradation of terpenes, flavonoids, and other cannabinoids. 
     Another feature of the disclosed recirculating HPL extractor  10 , system  200  and/or method  300  disclosed herein may be that recirculating HPL extractor  10 , system  200  and/or method  300  can be configured to decarboxylate the cannabis, cannabis extracts, cannabis extract bonded fats, or combinations thereof. 
     In sum, the purpose of the disclosed recirculating HPL extractor  10 , system  200  and method  300  may be to: extract, infuse, and bond cannabis and other botanical (i.e. Lavender, rosemary, citrus, mint, etc.) extracts to Fat (i.e. MCT oils, hemp oil, butter, butter fat, all seed oils, olive oil, etc.); to decarboxylate raw cannabis, cannabis extracts, cannabis extract bonded fats; to create and manufacture pharmaceutical grade tinctures utilizing fat as a carrier, from any and all fat-soluble plant matter (cannabis and other botanicals) for use in the medical field; to create and manufacture pharmaceutical grade tinctures utilizing fat as a carrier, from any and all fat-soluble plant matter (cannabis and other botanicals) for use as a dietary supplement; to create and manufacture pharmaceutical grade tinctures utilizing fat as a carrier, from any and all fat-soluble plant matter (cannabis and other botanicals) for use in the food service industry; and/or combinations thereof 
     Cannabis, as used herein, my refer to cannabis,  Cannabis sativa, Cannabis indica, Cannabis ruderalis , hemp, industrial hemp and all cannabinoids (ex. CBD, THC delta9, CBN, CBG, CBDA, THCA, and all others), terpenes, flavonoids, and additional bio-compounds contained within cannabis. 
     Fat, as used herein, may refer to any fat capable of carrying and or bonding to a fat-soluble carrier. 
     Decarboxylate, as used herein may refer to a chemical reaction that removes a carboxyl group and releases carbon dioxide. Usually decarboxylation refers to a reaction of carboxylic acids, removing a carbon atom from a carbon chain. 
     Tincture, as used herein may refer to a solution made by extracting, infusing, fusing, and/or bonding cannabis and other botanical (i.e. lavender, rosemary, citrus, mint, etc.) extracts to fat (i.e. MCT oils, hemp oil, butter, butter fat, all seed oils, olive oil, etc.). 
     A feature of the present disclosure is that it may allows for all natural extraction and bonding of cannabis and other botanical extracts with no solvents or chemicals. 
     Another feature of the present disclosure may be its ability to heat and cool the fat as it recirculates reducing degradation of terpenes, flavonoids, and other cannabinoids. 
     Another feature of the present disclosure may be its ability to recirculate liquid during the brewing process. 
     Another feature of the present disclosure may be the quantity by which fat bonding and production is achieved. 
     Another feature of the present disclosure may be the pressure at which it operates. 
     Another feature of the present disclosure may be that it can utilize recirculation pump  52  to increase pressure and recirculation capabilities. 
     Another feature of the present disclosure may be that it can be made mobile. 
     Another feature of the present disclosure may be that it can be scaled from 1 gallon to 5000 gallons. 
     In the specification and/or figures, typical embodiments of the disclosure have been disclosed. The present disclosure is not limited to such exemplary embodiments. The use of the term “and/or” includes any and all combinations of one or more of the associated listed items. The figures are schematic representations and so are not necessarily drawn to scale. Unless otherwise noted, specific terms have been used in a generic and descriptive sense and not for purposes of limitation. 
     The foregoing description and drawings comprise illustrative embodiments. Having thus described exemplary embodiments, it should be noted by those skilled in the art that the within disclosures are exemplary only, and that various other alternatives, adaptations, and modifications may be made within the scope of the present disclosure. Merely listing or numbering the steps of a method in a certain order does not constitute any limitation on the order of the steps of that method. Many modifications and other embodiments will come to mind to one skilled in the art to which this disclosure pertains having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Although specific terms may be employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation. Accordingly, the present disclosure is not limited to the specific embodiments illustrated herein but is limited only by the following claims.