Patents by Inventor Donald A. M. Mackay

Donald A. M. Mackay has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11714159
    Abstract: A system provides a way to determine angle of bearing to a target receiver/transmitter relative to plural beacon stations with rotating directional radiation patterns. The target is “cooperative” in that it transmits a “report” message when the target receives maximum signal strength from a beacon station. Triangulation from multiple beacon transmitter sites can be used to determine the target's position.
    Type: Grant
    Filed: November 8, 2022
    Date of Patent: August 1, 2023
    Inventor: Donald M. Mackay
  • Publication number: 20230141969
    Abstract: A system provides a way to determine angle of bearing to a target receiver/transmitter relative to plural beacon stations with rotating directional radiation patterns. The target is “cooperative” in that it transmits a “report” message when the target receives maximum signal strength from a beacon station. Triangulation from multiple beacon transmitter sites can be used to determine the target's position.
    Type: Application
    Filed: November 8, 2022
    Publication date: May 11, 2023
    Inventor: Donald M. MACKAY
  • Patent number: 4609543
    Abstract: An improved deposited chewable antacid tablet containing solid antacid particles which includes solid antacid particles having a primary particle size of less than 100 millimicrons, which particles are thoroughly coated with a mixture composed of a fatty material or oil, a surfactant, and a flavorant selected from the group consisting of chocolate, mint-chocolate, butter, vanilla, butter fat and mint flavors. The fat or oil is present in an amount of from about 25% to about 45% of the mixture. As a result of the mixture coated on the antacid particles a non-chalky, non-gritty, antacid tablet is provided which readily disintegrates upon exposure to saliva as such way as to function as a liquid antacid.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: September 2, 1986
    Assignee: Nabisco Brands, Inc.
    Inventors: William M. Morris, Frank Witzel, Wayne J. Puglia, Donald A. M. Mackay, K. Warren Clark, Kanit J. Patanasinth
  • Patent number: 4581381
    Abstract: An improved deposited chewable antacid tablet containing solid antacid particles which includes solid antacid particles having a primary particle size of less than 100 millimicrons, which particles are thoroughly coated with a mixture composed of a fatty material or oil, a surfactant, and a flavorant selected from the group consisting of chocolate, mint-chocolate, butter, vanilla, butter fat and mint flavors. The fat or oil is present in an amount of from about 25% to about 45% of the mixture. As a result of the mixture coated on the antacid particles a non-chalky, non-gritty, antacid tablet is provided which readily disintegrates upon exposure to saliva as such way as to function as a liquid antacid.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: April 8, 1986
    Assignee: Nabisco Brands, Inc.
    Inventors: William M. Morris, Frank Witzel, Wayne J. Puglia, Donald A. M. Mackay, K. Warren Clark, K. J. Patanasinth
  • Patent number: 4533543
    Abstract: An improved deposited chewable antacid tablet containing solid antacid particles which includes solid antacid particles having a primary particle size of less than 100 millimicrons, which particles are thoroughly coated with a mixture composed of a fatty material or oil, a surfactant, and a flavorant selected from the group consisting of chocolate, mint-chocolate, butter, vanilla, butter fat and mint flavors. The fat or oil is present in an amount of from about 25% to about 45% of the mixture. As a result of the mixture coated on the antacid particles a non-chalky, non-gritty, antacid tablet is provided which readily disintegrates upon exposure to saliva as such way as to function as a liquid antacid.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: August 6, 1985
    Assignee: Nabisco Brands, Inc.
    Inventors: William M. Morris, Frank Witzel, Wayne J. Puglia, Donald A. M. Mackay, K. Warren Clark, Kanit J. Patanasinth
  • Patent number: 4508713
    Abstract: A method for treating teeth to reduce caries is provided wherein the teeth are contacted with a hydrogenated starch hydrolysate, in the presence of a sugar, for example, as contained in a chewing gum composition or toothpaste or powder composition, the hydrogenated starch hydrolysate and sugar being present in an amount sufficient to inhibit growth of Streptococcus mutans in the oral cavity or on the teeth.
    Type: Grant
    Filed: April 25, 1984
    Date of Patent: April 2, 1985
    Assignee: Nabisco Brands, Inc.
    Inventors: John J. Stroz, Donald A. M. Mackay
  • Patent number: 4457921
    Abstract: A method for treating teeth to reduce caries is provided wherein the teeth are contacted with a hydrogenated starch hydrolysate, in the presence of a sugar, for example, as contained in a chewing gum composition or toothpaste or powder composition, the hydrogenated starch hydrolysate and sugar being present in an amount sufficient to inhibit growth of Streptococcus mutans in the oral cavity or on the teeth.
    Type: Grant
    Filed: May 9, 1983
    Date of Patent: July 3, 1984
    Assignee: Nabisco Brands, Inc.
    Inventors: John J. Stroz, Donald A. M. Mackay
  • Patent number: 4409202
    Abstract: A breath freshener composition is provided which may be in the form of a comestible, such as a pill, powder, tablet, pressed candy or mint, boiled candy, mouthwash, dental cream, chewing gum and the like, and which includes as its active ingredient a vegetable oil employed in combination with magnesium hydroxide or basic hydrated magnesium carbonate. The above breath freshener composition is especially effective in eliminating onion odor in the mouth and saliva. In addition, a method is provided for inhibiting bad breath wherein any of the above combinations are employed.
    Type: Grant
    Filed: July 16, 1981
    Date of Patent: October 11, 1983
    Assignee: Nabisco Brands, Inc.
    Inventors: Frank Witzel, Mario A. DiNolfo, Burton Rodney, Donald A. M. Mackay
  • Patent number: 4409244
    Abstract: A chewing gum is provided which has a soft consistency, an easy bite through, improved flavor characteristics and shelf-life and does not stick to its wrapper. These advantages are attained through the use of pure fructose syrup in place of corn syrup as a sweetener-plasticizer-bulking agent.
    Type: Grant
    Filed: August 13, 1982
    Date of Patent: October 11, 1983
    Assignee: Nabisco Brands, Inc.
    Inventors: Subraman R. Cherukuri, Dominick R. Friello, Walter Hopkins, Ellery Parker, Donald A. M. Mackay
  • Patent number: 4399154
    Abstract: A coextruded chewing gum is provided which includes an extruded center portion surrounded by and bonded to an extruded outer shell portion. The center portion of the coextruded chewing gum may contain increased amounts of flavor, substantially greater than that ordinarily employed in chewing gums of conventional structure, and may have a different density than the outer shell portion to provide a textural difference upon chewing.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: August 16, 1983
    Assignee: Nabisco Brands Inc.
    Inventors: Wayne J. Puglia, Sigismondo A. DeTora, Donald A. M. Mackay
  • Patent number: 4374122
    Abstract: A method for treating teeth to reduce caries is provided wherein the teeth are contacted with an anti-caries compound comprising 3,4-dihydro-6-methyl-1,2,3-oxathiazine-4-one-2,2-dioxide or the sodium, ammonium, potassium or calcium salt thereof, optionally in the presence of a sugar, for example, as contained in a chewing gum composition or toothpaste or powder composition, the anti-caries compound being present in an amount sufficient to inhibit growth of Streptococcus mutans in the oral cavity or on the teeth.
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: February 15, 1983
    Assignee: Nabisco Brands, Inc.
    Inventors: John J. Stroz, Donald A. M. Mackay
  • Patent number: 4371549
    Abstract: A stable liquid red beet color is provided which may be stored at room temperature and which is formed of spray-dried liquid red beet color carried on a solid medium, such as gum arabic or maltodextrin, which is dispersed in a liquid medium, such as glycerin, hydrogenated vegetable oil or propylene glycol.A chewing gum containing the above stable liquid red beet color is also provided.
    Type: Grant
    Filed: June 1, 1981
    Date of Patent: February 1, 1983
    Assignee: Nabisco Brands, Inc.
    Inventors: Subraman R. Cherukuri, Dominick R. Friello, Ellery Parker, Walter Hopkins, Donald A. M. Mackay
  • Patent number: 4357354
    Abstract: A reduced calorie chewing gum is provided which does not decrease in viscosity upon chewing and contains less than 65% water-solubles, such as sugars and/or sugar alcohols such as sweeteners, and includes gum base containing high levels of inert fillers, such as calcium carbonate or talc in amounts of at least about 40% by weight, softeners, such as lecithin, and optionally synthetic non-caloric sweeteners, such as aspartame, saccharin, or cyclamates. The chewing gum includes at least about 10% air voids entrapped in the gum base matrix which, upon chewing, become filled with moisture causing a dramatic increase in cud volume.
    Type: Grant
    Filed: November 25, 1980
    Date of Patent: November 2, 1982
    Assignee: Nabisco Brands, Inc.
    Inventors: Gary Kehoe, Wayne J. Puglia, Frank Witzel, Dominick R. Friello, Donald A. M. Mackay
  • Patent number: 4352824
    Abstract: A chewing gum is provided which contains gum base and a non-aqueous solid fatty or gelatinous sweetener or flavorant, such as butter, marshmallow or caramel, solubilized in the gum base. The subject chewing gum has the appearance and mouth feel of chewing gum as opposed to candy and a delayed but prolonged sweetness or flavor impact. The chewing gum is laminated with a slab of chewing gum which will supply initial sweetness or flavor impact.A method for producing the above chewing gum is also provided.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: October 5, 1982
    Assignee: Nabisco Brands, Inc.
    Inventors: Wayne J. Puglia, Gary Kehoe, Frank Witzel, K. Warren Clark, Donald A. M. Mackay
  • Patent number: 4328249
    Abstract: A method is provided for treating gum base to improve its resistance to oxidation without the need for antioxidants wherein air or oxygen is swept from the gum base by means of an inert gas, and the oxygen-free gum base, in particulate form, is coated with a highly oxygenated substance, such as molten sugar, sorbitol solution or hydrogenated starch hydrolysate which acts as a barrier against oxygen.The gum base produced by the above method and chewing gum containing such gum base are also provided.
    Type: Grant
    Filed: January 30, 1981
    Date of Patent: May 4, 1982
    Assignee: Life Savers, Inc.
    Inventors: Donald A. M. Mackay, Wayne J. Puglia
  • Patent number: 4327076
    Abstract: An improved compressed soft chewable tablet is provided, which may contain an antacid or other active ingredient, has good flexibility, is breakage resistant and disintegrates immediately upon chewing. The tablet of the invention is formed of particles of antacid and/or other active ingredient which are isolated from other ingredients of the tablet, preferably by admixing particles of active ingredient with particles formed of edible fat or oil absorbed on a fat-absorbing material, such as microcrystalline cellulose and blending such particles with one or more tablet bonders; the tablet also includes additional amounts of tablet bonders, flavors and other conventional tabletting aids to help in making the tablet more palatable. Upon chewing, the tablet is quickly converted to a smooth creamy non-gritty palatable emulsion.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: April 27, 1982
    Assignee: Life Savers, Inc.
    Inventors: Wayne J. Puglia, Kanit J. Patanasinth, Andrew T. Lombardo, John E. Beam, Donald A. M. Mackay
  • Patent number: 4323588
    Abstract: An aerated confection, such as marshmallow or nougat, which has good stability, can be deposited or extruded, will not collapse and can be subjected to high humidity. The aerated confection is preferably sugarless and contains a hydrogenated starch hydrolysate together with a hydrogenated sugar, such as isomaltitol.
    Type: Grant
    Filed: August 7, 1980
    Date of Patent: April 6, 1982
    Assignee: Life Savers, Inc.
    Inventors: Walter Vink, Leonard Spooner, Donald A. M. Mackay
  • Patent number: 4317837
    Abstract: A tobacco-flavored chewing gum is provided which does not decrease in viscosity upon chewing inasmuch as it is preferably essentially free of water-solubles, and includes gum base containing high levels of inert fillers, such as calcium carbonate or talc in amounts of at least about 50% by weight, softeners, such as lecithin, synthetic non-caloric sweeteners, such as aspartame, saccharin or cyclamates, and tobacco flavors and/or natural tobacco. The chewing gum includes at least about 10% air voids entrapped in the gum base matrix which, upon chewing, become filled with moisture causing a dramatic increase in cud volume.
    Type: Grant
    Filed: November 25, 1980
    Date of Patent: March 2, 1982
    Assignee: Life Savers, Inc.
    Inventors: Gary Kehoe, Wayne J. Puglia, Frank Witzel, Dominick R. Friello, Donald A. M. Mackay
  • Patent number: 4316915
    Abstract: Center-filled chewing gum is provided which includes as the center fill a dispersion of a thickener, such as carboxymethyl cellulose in glycerin, the glycerin functioning as both a sweetener and carrier, and the thickener functioning to retard increase in viscosity of the glycerin.
    Type: Grant
    Filed: February 26, 1981
    Date of Patent: February 23, 1982
    Assignee: Life Savers, Inc.
    Inventors: Dominick R. Friello, Ellery Parker, Donald A. M. Mackay, Subraman R. Cherukuri
  • Patent number: 4303648
    Abstract: A breath freshener composition is provided which may be in the form of a comestible, such as a pill, powder, tablet, pressed candy or mint, boiled candy, mouthwash, dental cream, chewing gum and the like, and which includes as its active ingredient a vegetable oil employed in combination with magnesium hydroxide or basic hydrated magnesium carbonate. The above breath freshener composition is especially effective in eliminating onion odor in the mouth and saliva. In addition, a method is provided for inhibiting bad breath wherein any of the above combinations are employed.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: December 1, 1981
    Assignee: Life Savers, Inc.
    Inventors: Frank Witzel, Mario A. Di Nolfo, Burton Rodney, Donald A. M. Mackay