The numerous advantages of the disclosure may be better understood by those skilled in the art by reference to the accompanying figures in which:
Referring generally to
Encapsulation presents many benefits, including protection of an unstable material from its environment and enhancement of product shelf-life by preventing dissolution or degradation; controlled or timed release; the ability to add multiple flavorings; and/or the ability to handle liquids as solids. Many seasonings, including sodium chloride, are water soluble and dissociate in an aqueous solution. In many instances, it is preferable to prevent particles of sodium chloride or other seasonings from dissociating to preserve a concentrated taste impact. Additionally, it may be desirable to control the release of the seasoning until it reaches the palate, which may allow distinction from larger crystal salt. Further, it may be desirable to utilize encapsulation of a core of seasoning in a suspension instead of direct encapsulation of the seasoning. Encapsulation provides a method for attaining these objectives.
In a first aspect of the disclosure, a mononuclear seasoning capsule may comprise one core encapsulated by a shell. An encapsulated seasoning particle 100 is added as part of a food slurry and consists of a core 10 encapsulated with a layer or shell 20 of fat, oil, or other non-aqueous food product. For instance, the encapsulated seasoning particle 100 may include a core, including at least one seasoning particle 10 less than 25 microns in size and a non-aqueous composition 20 encapsulated in a shell 90 of oil. The core may include at least one seasoning crystal, at least one jagged adsorbent particle, an emulsion, a suspension of solids, or a suspension of smaller microcapsules. An advantageous reason for utilizing microfine seasoning particles is that microfine seasoning particles may increase the overall surface area of the salt in comparison to the same volume of a larger particle salt. Further, microfine seasoning particles may increase the surface area coverage of food as well as the surface area coverage of the tongue and palate. For example, an encapsulated seasoning particle 100 including a core of multiple sodium chloride particles having a size less than as or equal to 25 microns suspended in a cooking oil may be dispersed to a slurry of ketchup at a stage at the end of the manufacturing process and before bottling and packaging. Additionally, the encapsulated seasoning particle 100 may be introduced to the ketchup before the ketchup product is processed, in the same manner table salt (i.e., sodium chloride) is frequently utilized. It will be appreciated that the encapsulated seasoning particle 100 may include various ingredients and be added to a variety of food products in a variety of ways without departing from the scope and intent of the disclosure.
An encapsulated seasoning particle 100 may be made available to the taste buds when the shell 90 is broken down. Mechanisms that break down the shell 90 may include physical rupturing, such as through chewing; dissolution of the shell wall; a phase change in the shell wall, such as through melting; and/or diffusion of material through the shell wall. For purposes of the disclosure, a frequent mechanism of breaking down the shell 90 may be physical rupture by chewing, although it will be appreciated that the mechanism of breaking down the shell 90 may occur in a variety of ways without departing from the scope and intent of the disclosure.
It is further conceivable that an encapsulated seasoning particle 100 only be partially encapsulated. A partially encapsulated seasoning particle 100 may consist of a shell 20 of cooking oil and a core including a seasoning particle 10, for example sodium chloride, and a non-aqueous composition 20. A core of seasoning is shown only partially encapsulated by an encapsulating shell 90. The partially encapsulated core may or may not be substantially encapsulated by the shell 90. A partially encapsulated seasoning particle 100 may be useful when dissolution of the seasoning particle 10 is desired, but a slower rate of dissolution or timed release is required. A partially encapsulated series of connected sodium chloride crystals 50 may consist of a core 10 and an encapsulating shell 20. When utilized as a seasoning particle 10, sodium chloride crystals may be cubic in shape but often naturally occur as connected cubes, rectangles, or other nonuniform arrangements and forms. The shell 90 may be cubical, spherical, or various other form both uniform and nonuniform. The shell 90 may generally mimic the shape of the core.
Moreover, it is possible that a seasoning particle be encapsulated by multiple shells 90. Multiple layers of encapsulation may provide different functions, such as delivering different flavorings or providing a timed release mechanism. An encapsulated seasoning particle 10 may consist of a core, a first shell 90, and a second shell 110. Multiple layers may be useful for providing extra protection for the core. For example, a core may be encapsulated by a first layer 90 of butter and a second layer 110 of hardened fat. This approach may be useful when the encapsulated seasoning particle 100 may be exposed to a temperature between the melting point of the hardened fat and the butter. The butter Layer may melt while the hardened fat layer remains solid because of the higher melting point of the hardened fat layer. The first Layer of butter may give a more desirable taste than the hardened fat layer, but the hardened fat layer may be more resistant to melting. This may result in an encapsulated seasoning particle 100 that delivers a desirable taste while protecting the core. Further, the encapsulated seasoning particle is not necessarily limited to two encapsulating layers. More than one or two encapsulating layers may be utilized.
A polynuclear microcapsule of seasoning is disclosed. The shell may block an undesired taste in some food substances. An encapsulated seasoning particle 100 may include multiple cores, including different seasonings, and a shell 90. For example, multiple cores, including at least one core of potassium chloride and at least one core of sodium chloride, may be encapsulated by a shell 20 of cooking oil. The cooking oil may initially mask the bitter taste of the potassium chloride core(s) while the sodium chloride core(s) may deliver a salty taste perception. Utilizing multiple cores, for example at least one sodium chloride core and at Least one potassium chloride core, may be beneficial for different reasons, such as reducing sodium intake white delivering a salty taste perception. The encapsulated potassium chloride seasoning 100 may be a polynuclear microcapsule because there may be multiple cores as a result of the manufacturing process. A seasoning particle 10 may take on a variety of shapes not limited to those listed previously.
An encapsulated seasoning particle 100 may include a matrix encapsulation, where the seasoning material and the nonaqueous composition may be distributed homogenously throughout the shell 90 material. An encapsulated seasoning particle 100 in a matrix form may include a seasoning particle 10 distributed homogenously throughout the non-aqueous composition 20 and encapsulated by the shell 90. It will be appreciated that an encapsulated seasoning particle 100 may be utilized in a variety of ways. The encapsulated seasoning particle 100 and seasoning particle 10 may take on a variety of shapes not limited to those listed previously.
Further, it may be desirable to utilize encapsulation with a core of seasoning in a solution instead of a solid. While there are many reasons for particle encapsulation, it may be desirable to encapsulate water soluble materials, such as salt crystals, with hydrophobic compounds or compounds that are impervious to water to deliver small particle salts that have greater saltiness perception. This may be accomplished by aqueous phase separation, which is “oil-in-water” encapsulation. An oil/seasoning slurry may be encapsulated by materials such as gelatin, proteins, carbohydrates, oils and/or fats. Release of the salt may be dependent on shear force or pressure, such as chewing food.
The use of a encapsulated seasoning particle may be beneficial because it reduces the amount of seasoning, often including sodium, required for a desired taste impact in comparison to an amount of seasoning that would provide the same taste impact with a larger particle size. For example, sodium intake may be reduced by utilizing small particle sodium chloride, which delivers a greater taste impact than the same mass of larger particle sodium chloride. The utilization of small particle salt as a means of reducing sodium amounts in various food products while potentiating or enhancing an equivalent “salt impact” is based on the integrity of the salt crystals, which is dependent on the absence of its solvation in an aqueous medium. Cores utilizing small seasoning particles 10, such as salt crystals, may be encapsulated within foodgrade compound shells 90 that prevent the dissociation of sodium chloride, potassium chloride, salt mixtures containing these, and/or other seasoning mixtures. This would allow the application of this technology to aqueous food systems. This may include major food categories including canned goods, baked goods, seasoned meats, fried foods, pastas, vegetables, fruits, or any other food that is seasoned with salt or other seasonings and it is desirable to lower sodium content without significantly altering desired saltiness taste perception.
An encapsulated seasoning particle 100 may be used for at least one of flavoring and preserving a food product and may comprise a first encapsulated seasoning component, including a salt, and a second encapsulated seasoning component selected for at least one of complementing the first encapsulated seasoning component and reducing the amount of the first encapsulated seasoning component required for producing a desired flavor of the food product. For instance, the desired flavor may be a true salty flavor, such as from sodium chloride. The first encapsulated seasoning component and the second encapsulated seasoning component have a particle size of less than 25 microns or minus 500 U.S. mesh. Particle size refers to the size of a seasoning particle disposed in the core encapsulated by a shell 90. The term “particle” may refer to a crystalline or lattice structure, regular three dimensional shapes (referring to coordination geometry), and irregular shapes having no predefined or specific particle orientation or geometry. The particle size may be evaluated through use of a particle analyzer. For example, a Malvern Laser Particle Size Analyzer or an optical particle image analyzer may be used to obtain a particle size.
The core of the encapsulated seasoning particle 100 may include various seasonings. The first encapsulated seasoning component may include at least one of sodium chloride and potassium chloride. For example, the first encapsulated seasoning component may be sodium chloride having a particle size such that when included with the second encapsulated seasoning component, the particle size of the combination is less than 25 microns. The food seasoning may further comprise a second encapsulated seasoning component selected for at least one of complementing the taste impact of the first encapsulated seasoning component and reducing the amount of the first encapsulated seasoning component required for producing the desired taste impact. The second seasoning component may include at least one of potassium chloride, a sea salt, a bulking agent, and a bitterness masking agent. For instance, the second seasoning component may be is potassium chloride, which may additionally include a bitterness masking agent commonly used in the art. The bitterness masking agent may be any additive commonly used in the art to at least one of mask, inhibit, and mitigate the bitter sensation associated with potassium chloride. An exemplary bitterness masking agent is trehalose, as disclosed in U.S. Patent Application No. 20060088649 and U.S. Pat. No. 6,159,529. While only sodium chloride elicits a true salt taste, it is foreseeable that an amount of potassium chloride may be used to complement the flavor of sodium chloride, while reducing the dietary intake of sodium. Because the potassium chloride may impart a bitter flavor to the mixture, however, a bitterness masking agent may be utilized to mitigate the bitter flavor.
As described above, the second encapsulated seasoning component may include a bulking agent. The bulking agent may be utilized to further reduce the amount of the first seasoning component required to impart the desired flavor. The bulking agent may comprise starch, maltodextrin, dextrose, another starch derivative, or another suitable bulking agent which should not adversely affect the flavor and organoteptic properties of the first encapsulated seasoning component.
Until recently, salt was considered simply a necessary and basic commodity. However, different varieties of salt have lately been utilized by cooks and chefs—including sea salt—to add gourmet flavor to foods. Sea salt has many purported health benefits and is often portrayed as being superior to table salt. Sea salt may contain sodium chloride, potassium chloride, magnesium, calcium, sulfates, and/or other minor constituents. An additional advantage of sea salt is the various flavors and varieties that may be available. An encapsulated seasoning particle 100 may have a core, having at least one seasoning particle 10 with a particle size less than 25 microns and a non-aqueous composition 20, and may be surrounded or encapsulated by a non-aqueous shell 90. A seasoning particle 10 of sea salt, having a particle size less than 25 microns, combined with a non-aqueous coating 20 may be encapsulated by a shell 90 of cooking oil. When applied to a surface with aqueous properties, the shell 90 of cooking oil may prevents a sea salt seasoning particle from dissociating and may preserve the integrity of the encapsulated seasoning particle 30 containing sea salt as a tastant. During consumption, the shell 90 of cooking oil may be ruptured and the sea salt seasoning particle 10 may be made available for taste impact. The sea salt seasoning may be natural or manmade, may be replaced with other flavored salts, natural or manmade, and/or a variety of other flavorings. It will be appreciated that the seasoning may consist of a variety of different seasonings, alone or in combination.
Large particle seasoning, having a size between 5 and 250 microns, and encapsulated seasoning particles 100, with a seasoning particle size less than 25 microns, may be mixed together. The encapsulated seasoning particle 100 and the large particle seasoning may include sodium chloride, potassium chloride, and sea salt. The large particle seasoning may or may not be encapsulated. The encapsulated seasoning particle 100 containing sea salt may be mixed with large encapsulated particles of sea salt seasoning. The encapsulating shell on the particles of sea salt prevents dissociation. The different sizes of the particles of salt allow for a relatively constant flavor impact because the small particles dissolve quicker and the larger particles dissolve slower.
An encapsulated seasoning particle 100 may be applied to a product using adhesion. For example, a coating, such as cooking oil, butter, or a non-nutritive oil, is first applied to a food, possibly through a pump or an aerosol spray. Sodium chloride, which may be the first encapsulated seasoning, may then be applied to the coating. The sodium chloride, with a particle size less than 25 microns or minus 500 U.S. mesh, may be included in the aerosol spray. The sodium chloride may be delivered as a suspension not only in cooking oil, but also in alcohol or some other non-polar solvent. One serving amount of sodium chloride from a salt shaker may contain approximately 1500 to 2000 mg of sodium chloride, white one serving amount of a sodium chloride suspension applied as an aerosol may contain approximately 300 to 400 mg of sodium chloride. It may be important that the sodium chloride be in a non-aqueous suspension so the sodium chloride does not dissociate until it reaches the palate.
The first seasoning component may be deposited at least partially around the second seasoning component. Deposition may occur via high shear granulation; fluid bed coating; spray drying; coacervation; physical vapor deposition, including plasma deposition and sputtering; chemical vapor deposition; or another suitable deposition technique. The second seasoning component may be fully encapsulated by the first seasoning component, or in the alternative, only a portion of the second seasoning component surface area may be covered by the first seasoning component. For example, in a seasoning particle, starch may be the core upon which sodium chloride is deposited. While sodium chloride may be located around the perimeter of the seasoning particle, saliva may quickly dissolve the salt into solution so that it may be tasted. Since starch comprises the core of the encapsulated seasoning particle, less sodium chloride may be ingested per encapsulated seasoning particle compared to an encapsulated seasoning particle solely comprised of sodium chloride. Even though the core may not impart a salty flavor, the rapidity of the dissolution of the salt may result in a relatively high perceived salt taste. Alternatively, starch and sodium chloride may be admixed or agglomerated into a discrete particle in a matrix form of morphology. In this manner, the saltiness perception may be lengthened or extended due to a separation of sodium chloride units by the starch. Thus, rather than a rapid dissolution, the sodium chloride may be dissolved upon breaking up of the agglomeration or admixture, resulting in a lengthened dissolution process and a longer lasting taste of sodium chloride.
Employing a core size of less than 25 microns, such as a particle size of 10 microns, may be essential to potentiating, enhancing, and maximizing the taste impact of the seasoning. While many theories about the mechanism by which chemicals elicit a specific taste sensation exist, most of these theories agree that tastants must be water soluble to be tasted. Taste cell receptors exist within taste buds grouped together on the human tongue. These receptors allow humans to detect differences in varying concentrations of materials. For example, taste cell receptors enable an individual to differentiate between a highly concentrated or saturated solution of sodium chloride dissolved in water and a significantly lesser amount of sodium chloride fully dissolved in water. A weight of sodium chloride comprising a small particle size provides more surface area than the same weight of sodium chloride comprising a larger particle size and the same crystal structure. Doubling the length of each side of a cube quadruples the surface area of the cube, but consumes eight times the volume. Alternatively, taking the same volume and decreasing the length of each side by half gives eight smaller cubes with a total of twice the amount of surface area available to the taste buds. This is important with regard to the dissolution process disclosed herein.
The rate at which a substance may be dissolved into solution is dependent on multiple factors. One such factor may be the surface area of the substance. When a substance is exposed to a solvent, the surface area in contact with the solvent may be termed the solvent exposed area. In general, the greater the solvent exposed area, the faster the dissolution of the substance. This particular dissolution property combined with the function of taste receptors may maximize the taste impact of seasoning, and particularly sodium chloride introduced with a second seasoning component.
Saliva may act as a solvent for tastants. Small particle sizes may be used to increase the solvent exposed area of the seasoning components. For example, a particular weight of sodium chloride having a particle size of 10 microns may dissolve into a given volume of saliva more rapidly than an identical weight of sodium chloride having a particle size of 250 microns, comprising the same crystal structure, and in an identical volume of saliva. After a short period of time, the 10 micron solution may have a higher concentration of dissolved sodium chloride than the 250 micron solution. Tasting response to sensory stimuli is rapid, usually occurring within 50 milliseconds. Thus, only a short amount of time may be allotted before a tastant elicits a response on the taste receptors. Therefore, by using a smaller particle size, the seasoning may dissolve into solution more rapidly and may elicit a larger taste impact than seasoning comprising a larger particle size.
A smaller particle size may elicit a larger taste impact of seasoning. Relative taste impact primarily is a function of tastant dissolution rate. As such, the amount of tastant required for a desired taste may become less critical for producing the desired taste. For example, while a large amount of coarse salt may produce a highly concentrated solution, it may take a significant portion of time, relative to the short time required for tasting, to achieve this high concentration. On the other hand, while a smaller amount of fine salt may not produce as concentrated a solution after the significant portion of time, it may achieve a higher concentration after a short period of time, due to the enhanced solubility. Thus, less fine salt may be required to produce a desired taste impact. Therefore, dietary sodium may be reduced by using smaller particle size sodium chloride without compromising the desired taste impact.
This result of reduced dietary sodium intake while retaining the desired impact may be supported by multiple views of the mechanism by which tastants elicit taste. For instance, this result may be supported by the lock and key view or the shallow contour view, which are similar to an enzyme/substrate relationship. Under these models, the relationship between the amount of seasoning consumed and the taste impact may be approximated by a simplified dose-response curve, as depicted in
where A is the concentration of a tastant. Thus, a given response, such as taste impact on a taste receptor, is dependent upon the concentration of a tastant. A small particle size tastant, such as sodium chloride, will dissolve into saliva quickly, resulting in a more concentrated solution after a short period of time. A larger particle size of sodium chloride will dissolve into saliva more slowly and may result in a lower concentration solution in the same period of time. According to the simplified dose-response curve, the response will be higher for the smaller particle size solution after this short period of time. Response increases for increasing concentration on the simplified dose-response curve. Thus, taste impact increases for increasing concentration of tastant, according to these models.
Retaining a desired taste impact may also be approximated by the chemical tastant-receptor interaction model. As explained above, tastes are differentiated by the symmetrical nature of the interactions, in which no chemical products are formed. Thus, the interactions of this model may be approximated by chemical reaction equations solely dependant upon the concentration of the tastant. As shown in
It is also foreseeable that sodium chloride or other seasoning particle structures other than a cubic crystal lattice may be utilized. For example, dendritic salt or salt produced from the Alberger process may be used. Dendritic salt may be produced in vacuum pans from chemically purified brine to which a crystal modifying agent is added. The resultant crystals are porous, star-shaped modified cubes. This structure ensures an even greater solvent exposed area, and thus better solubility than regular cubic crystalline structure. The Alberger process produces salt through mechanical evaporation and may use an open evaporating pan and steam energy. The resultant crystals are stairstep-like flakes with very tow bulk density. This structure increases the solvent exposed area, and thus, has better solubility characteristics than regular cubic crystalline structure. Smalter amounts of these salt forms may be required than traditional amounts of salt to obtain the desired taste, due to the high solubility of these specialized forms. Additionally, the irregular shapes of these salt forms may enhance their ability to cling to surfaces, such as on foodstuffs.
The following examples are merely exemplary and are not necessarily restrictive of the disclosure.
This example presents an application of encapsulated microfine seasoning, such as salt, as a component of breadings or toppings for frozen or refrigerated foods. The encapsulated microfine seasoning can be applied in an aqueous suspension utilizing adhesion or added directly into the breading or topping. The food products may include poultry, red meat, fish, baked goods, vegetables, or other appetizers including potatoes, onions, or cheeses, and may contain seasoning, flour, wheat, cornmeal, nuts (tree or legumes), and/or soybeans. Processes may include frying, baking, roasting, partial or fully cooking, or extrusion. Specific examples may include breaded zucchini, mozzarella, mushrooms, or chicken, flavored or unflavored onion rings, potato products (i.e., french fries), pastry pie crumb topping, or breaded pasta (i.e., toasted ravioli).
This example presents an application of encapsulated microfine seasoning as a component for dry mix breadings for the covering of food products. The encapsulated microfine seasoning can be applied directly as a part of the breading. The food products may include poultry, red meat, fish, baked goods, vegetables, or other appetizers including potatoes, onions, or cheeses, and may contain seasoning, flour, wheat, cornmeal, nuts (tree or legumes), or soybeans. Processes may include frying, baking, roasting, partial or fully cooking, or extrusion. A specific example includes SHAKE'N BAKE®, manufactured by Kraft Foods, Inc.
This example presents an application of encapsulated microfine seasoning as a component in a seasoning blend for a topical application. The encapsulated seasoning can be added to the food as part of an aqueous suspension using adhesion principles. The food products may include poultry, red meat, fish, baked goods, vegetables, or other appetizers including potatoes, onions, or cheeses (topical or non-aqueous). The topical application may include seasonings or bulking agents. A specific example may include seasoning salt.
This example presents an application of encapsulated microfine seasoning as a component in cured and non-cured dried meats as a topical additive. The encapsulated seasoning can be added to the food as part of an aqueous suspension using adhesion principles. The meats may include beef, bacon, or bacon-flavored mimics. The dried meats may be dried, freeze-dried, extruded or baked. A specific example includes bacon bits.
This example presents an application of encapsulated microfine seasoning as a component in non-snack, cereal-based food compliments. The encapsulated microfine seasoning can be added as part of an aqueous suspension or directly to the cereal-based food. The cereal-based food compliments may include bread, wheat, corn, oats, millet, rye, soybeans, cornmeal, seasoning, nuts (tree or legumes), or rice, and may be processed by baking, frying, extruding, puffing, drying, or may be left unprocessed. Specific examples may include croutons or bread crumbs.
This example presents an application of encapsulated microfine seasoning as a direct addition to natural and artificial spreads. The natural or artificial spreads may contain nuts (tree or legumes), nut ingredients, soybeans, or seeds. Specific examples may include hazelnut spread, soy butter, or peanut butter.
This example presents an application of encapsulated microfine seasoning for use as a direct addition or part of articles in aqueous batters. The batters may include edible fats and oils, flour, salt, seasoning, wheat, corn, cornmeal, nuts (tree or legume), or soybeans. Specific examples include potato wedges, onion rings, fish, and cheese sticks.
This example presents an application of encapsulated microfine seasoning for use as a direct addition to prepared pie crusts. The encapsulated microfine seasoning may be added directly to the pie crust mix as part of an aqueous suspension. The pie crusts may contain seasoning, flour, wheat, corn, cornmeal, nuts (trees or legumes), or soybeans. A specific example is a graham cracker pie crust.
This example presents an application of encapsulated microfine seasoning added to a dried, grated, or shredded cheese for topical use. The encapsulated microfine seasoning may be directly added to the cheese or as a part of an aqueous suspension. The cheese may be dried or dehydrated. Specific examples include parmesan, romano, asiago, or other dried, grated or, shredded cheeses with salt and other ingredients.
This example presents an application for the direct addition of encapsulated microfine seasoning into water-based products. The microfine seasoning may be added as a component in a non-aqueous suspension. The lipid based products may be natural, conditioned, de-gummed, stabilized, deodorized, homogenized, bleached, or winterized. Uses may include confectionary aqueous fillings, sprays, liquid or solid edible flavorings. Specific examples may include Oreo filling, manufactured by Nabisco.
This example presents an application of encapsulated microfine seasoning as an application for cereals and cereal bars. The encapsulated microfine seasoning may be added directly to the cereal or cereal bars or as a part of an aqueous suspension. The cereal or cereal bars may include bread, wheat, corn, oat, millet, rye, soybeans, cornmeal, seasoning, nuts (tree or legumes), rice, or granola processed by baking, extruding, roasting, toasting, frying, drying, pressing, forming, or puffing. Specific examples may include any type of breakfast cereal, or any type of granola bar that is aqueous in nature.
This example presents a topical application of encapsulated microfine seasoning for vegetables and fruits. The encapsulated microfine seasoning is added directly to the vegetables and fruits. The vegetables and fruits may be freeze-dried or processed other ways. A specific example is Gerber freeze-dried sweet corn for babies, manufactured by the Gerber Products Company.
This example presents a topical application of encapsulated microfine seasoning for snack foods. The encapsulated microfine seasoning may be added directly to the snack food or as a part of an aqueous suspension. The snack foods can contain rice, oats, corn, soybeans, wheat, cornmeal, flour, seasoning, potato, rye, millet, or nuts (tree and legumes). The snack foods can be flavored and unflavored snack crackers, crisps, cakes, mixes, chips, shells, cookies, crackers, pork rinds, and can be toasted, roasted, baked, fried, extruded, puffed, and the like. Specific examples include potato chips (i.e. Pringles, manufactured by Procter & Gamble), Chex mix, manufactured by General Mills, Inc., pork rinds, corn chips, popcorn, soy or rice cakes, popcorn that is microwavable or ready-to-eat, saltines, Chips Ahoy cookies, manufactured by Nabisco, bagel chips, pita chips, Planters peanuts, manufactured by Kraft Foods Global, Inc., and the like.
It is believed that the present disclosure and many of its attendant advantages will be understood by the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement of the components without sacrificing its material advantages. The previous disclosure is explanatory only; it is the intention of the following claims to encompass and include such changes.
The present application claims the benefit under 35 U.S.C. § 119(e) of U.S. Provisional Application Ser. No. 60/847,739 and U.S. Provisional Application Ser. No. 60/847,725, both filed Sep. 27, 2006, both incorporated by reference in their entirety.
Number | Date | Country | |
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60847739 | Sep 2006 | US | |
60847725 | Sep 2006 | US |