Patents by Inventor John MacDonald
John MacDonald 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).
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Publication number: 20040170788Abstract: An apparatus for slush molding a thin shell having an outer layer and an inner layer. The apparatus includes two tubs alternately movable to a cast position for dispensing their respective material contents into a mold cavity. According to another embodiment of the invention, the apparatus includes a diverter valve configured to alternately open a passage from each of two tubs to the mold cavity to selectively dispense charge materials from the respective tubs into the mold cavity. In addition, a method is provided for forming a thin shell having an outer layer and an inner layer. A first polymer material is cast and allowed to melt on a heated mold surface to form an outer layer. A second polymer material is then cast and allowed to melt and form an inner layer on the inner surface of the outer layer. The shell is then removed from the mold.Type: ApplicationFiled: March 10, 2004Publication date: September 2, 2004Inventors: John MacDonald, Michael Conroy, MaryLou Smith LeCoz, Marvin Nelson
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Patent number: 6709619Abstract: An apparatus for slush molding a thin shell having an outer layer and an inner layer. The apparatus includes two tubs alternately movable to a cast position for dispensing their respective material contents into a mold cavity. According to another embodiment of the invention, the apparatus includes a diverter valve configured to alternately open a passage from each of two tubs to the mold cavity to selectively dispense charge materials from the respective tubs into the mold cavity. In addition, a method is provided for forming a thin shell having an outer layer and an inner layer. A first polymer material is cast and allowed to melt on a heated mold surface to form an outer layer. A second polymer material is then cast and allowed to melt and form an inner layer on the inner surface of the outer layer. The shell is then removed from the mold.Type: GrantFiled: May 3, 2002Date of Patent: March 23, 2004Assignee: Textron Automotive Company Inc.Inventors: John MacDonald, Michael Conroy, MaryLou Smith LeCoz, Marvin Nelson
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Publication number: 20030109601Abstract: An apparatus for slush molding a thin shell having an outer layer and an inner layer. The apparatus includes two tubs alternately movable to a cast position for dispensing their respective material contents into a mold cavity. According to another embodiment of the invention, the apparatus includes a diverter valve configured to alternately open a passage from each of two tubs to the mold cavity to selectively dispense charge materials from the respective tubs into the mold cavity. In addition, a method is provided for forming a thin shell having an outer layer and an inner layer. A first polymer material is cast and allowed to melt on a heated mold surface to form an outer layer. A second polymer material is then cast and allowed to melt and form an inner layer on the inner surface of the outer layer. The shell is then removed from the mold.Type: ApplicationFiled: May 3, 2002Publication date: June 12, 2003Inventors: John MacDonald, Michael Conroy, MaryLou Smith LeCoz, Marvin Nelson
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Patent number: 6527649Abstract: An adjustable golf club comprises an elongate shaft having a handle at one end, a club head having a face arranged to strike a golf ball, a pair removable shaft attaching members each arranged to be coupled to the club head at respective sides of the striking face whereon the shaft extends therefrom. A pair of changeable weights, each one of the weights is arranged to be coupled to a respective one of the shaft attaching members. An insert portion on the club head at respective sides of the striking face for receiving the shaft attaching member. A stem extending from each of the shaft attaching members arranged to extend through the club head whereon the weights are coupled and an adjustable fastening arrangement in the insert arranged such that the angle of the shaft in relation the club head can be changed. The shaft attaching members are arranged to be interchangeable to allow the club to be usable for left or right handed golfers.Type: GrantFiled: September 20, 2001Date of Patent: March 4, 2003Inventors: Lloyd A. Neher, John MacDonald
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Publication number: 20030016927Abstract: An optical fiber has a core with a diameter dc and a reflective index nc; a primary cladding concentrically surrounding the core and having an outer diameter dpc and a refractive index npc less than the core refractive index nc; and a secondary cladding concentrically surrounding the primary cladding and having an outer diameter dsc and a refractive index nsc less than the primary cladding refractive index npc.Type: ApplicationFiled: May 15, 2002Publication date: January 23, 2003Applicant: IntelCore TechnologiesInventors: Abdelouahed Soufiane, Musa Awaleh, John MacDonald, Paula Fournier
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Publication number: 20020099576Abstract: Systems and methods are provided for managing reservations, e.g., reservations for units in lodging facilities such as cabins on cruise ships and rooms or suites in hotels, using the Internet. A person wishing to make a reservation can easily access information regarding the availability of units (e.g., cabins or rooms) during a particular time period by visiting a website that includes plans showing various areas of a place of accommodation (e.g., a deck of a ship or floor of a hotel).Type: ApplicationFiled: January 22, 2001Publication date: July 25, 2002Inventors: John A. MacDonald, Gregory S. Davis, Bradford Meiseles
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Patent number: 6409493Abstract: An apparatus for slush molding a thin shell having an outer layer and an inner layer. The apparatus includes two tubs alternately movable to a cast position for dispensing their respective material contents into a mold cavity. According to another embodiment of the invention, the apparatus includes a diverter valve configured to alternately open a passage from each of two tubs to the mold cavity to selectively dispense charge materials from the respective tubs into the mold cavity. In addition, a method is provided for forming a thin shell having an outer layer and an inner layer. A first polymer material is cast and allowed to melt on a heated mold surface to form an outer layer. A second polymer material is then cast and allowed to melt and form an inner layer on the inner surface of the outer layer. The shell is then removed from the mold.Type: GrantFiled: March 20, 2000Date of Patent: June 25, 2002Assignee: Textron Automotive Company, Inc.Inventors: John MacDonald, Michael Conroy, MaryLou Smith LeCoz, Marvin Nelson
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Patent number: 6334142Abstract: To supply messages to an audience of Internet users, the messages are initially stored on an Internet server which is accessible by a group of Internet clients operated by Internet users, when a message is received at the server, it includes an information part and a data part. The data part includes at least one identifier specifying the intended audience of the message. In the server, the information part of the message is stored as an HTML file in a first store and the URL of the file containing the information part of the message together with the identifier or identifiers of the intended audience are stored in a second store. To view messages intended for a particular user on one of the clients, the client transmits requests automatically at periodic intervals to the server for new messages intended for the user. In response to each request, the server scans the fields in the second store to compile a list of URLs of messages intended for the user.Type: GrantFiled: October 29, 1998Date of Patent: December 25, 2001Assignee: British Telecommunications public limited companyInventors: Eric Robert Newton, Simon John MacDonald, David Richard Cruickshank, Phil Clark
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Patent number: 6180376Abstract: Oil is extracted from oil containing microorganisms by disintegrating the microorganisms and contacting them in the presence of a water content of at least 70% by weight of that originally present in the cellular material with a water immiscible solvent for the oil, separating the solvent from the microorganisms and recovering the oil from the solvent.Type: GrantFiled: January 20, 1998Date of Patent: January 30, 2001Assignee: Zeneca LimitedInventor: John Macdonald Liddell
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Patent number: 6146879Abstract: A method is presented for spray-drying whole microorganisms of Fusarium lateritium, Methylophilus methylotrophus, and Pseudomonas putida under conditions that the activity of cyanide hydratase, amidase and D-2-haloalkanoic acid halidohydrolase respectively are retained.Type: GrantFiled: November 12, 1997Date of Patent: November 14, 2000Assignee: Zeneca LimitedInventors: John Macdonald Liddell, William Greer
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Patent number: 6053292Abstract: A hydrokinetic torque converter includes an impeller cover and a bypass clutch. A drive ring is located between adjacent surfaces of the cover and a clutch piston, which moves axially on a support surface. The piston is welded at a radially outer position to thin clutch plate, which is supported at another radial location on the cover. As the piston moves into engagement with the ring and cover, the clutch plate permits this movement by bending elastically. When clutch apply pressure is reduced, energy stored in the clutch plate is used to move the piston out of engagement with the drive ring and cover.Type: GrantFiled: January 25, 1999Date of Patent: April 25, 2000Assignee: Ford Global Technologies, Inc.Inventor: Fraser John Macdonald
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Patent number: 6006878Abstract: A hydrokinetic torque converter includes an impeller cover and a bypass clutch. A drive ring is located between adjacent surfaces of the cover and a clutch piston, which deflects flexurally axially. The piston is welded to the cover at a radially inner position, which is supported at another radial location on the cover. The piston deflects into engagement with the drive ring, and the drive ring engages with the cover. When clutch apply pressure is reduced, energy, in the form of elastic bending potential energy stored in the piston, is used to move the piston out of engagement with the drive ring and cover.Type: GrantFiled: February 12, 1999Date of Patent: December 28, 1999Assignee: Ford Global Technologies, Inc.Inventors: Fraser John Macdonald, David Hargrave
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Patent number: 5977250Abstract: A chiral (R) stereospecific polyhydroxyalkanoate (PHA) in aqueous latex form having virgin disperse phase particles of very low or undetectable crystallinity is useful in making a water-sensitive structure water-resistant. It may be used as a mixture with a latex of a synthetic polymer. Processes for making the PHA latex are disclosed.Type: GrantFiled: November 24, 1997Date of Patent: November 2, 1999Assignee: Monsanto CompanyInventors: Neil George, Timothy Hammond, John MacDonald Liddell, Rajasingham Satgurunathan, Peter Deryk Turner
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Patent number: 5964328Abstract: A hydrokinetic torque converter includes an impeller cover and bypass clutch located within the impeller housing. The impeller cover has welded to it a clutch plate, which carries friction material adjacent the clutch piston. The piston has legs that extend axially into engagement with helical springs carried in a damper assembly arranged in series with the damper between the impeller cover and the input shaft of the transmission. The springs are located in a retainer that accommodates two, three or four springs, as required by the torque requirements of the clutch and damper. The spring constant of the damper can be linear or piecewise linear over the full displacement range of the damper springs.Type: GrantFiled: July 9, 1997Date of Patent: October 12, 1999Assignee: Ford Global Techologies, Inc.Inventors: John William Fallu, Fraser John MacDonald, Stephen Harold Henning
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Patent number: 5952460Abstract: A process of recovering PHA from a suspension which comprises particles of PHA in a liquid which comprises maintaining the suspension at a temperature at which the PHA melts and substantial coalescence of PHA particles occurs thereby at least partly forming a layer of molten PHA and separating the layer of PHA optionally after it cooling to form a solid.Type: GrantFiled: July 7, 1997Date of Patent: September 14, 1999Assignee: Monsanto CompanyInventors: John MacDonald Liddell, Neil George, Alan Hall
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Patent number: 5947243Abstract: A hydrokinetic torque converter includes an impeller cover and bypass clutch located within the impeller housing. The impeller cover has welded to it a clutch plate, which carries friction material adjacent the clutch piston. The piston has legs that extend axially into engagement with helical springs carried in a damper assembly arranged in series with the damper between the impeller cover and the input shaft of the transmission. The springs are located in a retainer that accommodates two, three or four springs, as required by the torque requirements of the clutch and damper. The spring constant of the damper can be linear or piecewise linear over the full displacement range of the damper springs.Type: GrantFiled: July 14, 1997Date of Patent: September 7, 1999Assignee: Ford Global Technologies, Inc.Inventor: Fraser John MacDonald
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Patent number: 5894062Abstract: A hydroxyalkanoic acid (PHA)is recovered from matter derived from living organisms by dissolving the PHA in a solvent which is a lower ketone, dialkyl ether or a lower alcohol or a monocarboxylic acid ester thereof, separating the solution from such matter and recovering PHA from the solution.Type: GrantFiled: June 16, 1997Date of Patent: April 13, 1999Assignee: Monsanto CompanyInventor: John MacDonald Liddell
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Patent number: 5891936Abstract: A process of making a polyhydroxyalkanoate PHA latex comprises making a liquid-form solution of such PHA in a water soluble liquid and contacting that solution with water under shear. Suitably the solution is prepared at a temperature between the boiling point of water and 10.degree. C. below the melting point of the PHA as measured by DSC for example by melt separating PHA from a microbiological suspension thereof, dissolving it in the water soluble liquid, and then contacting the solution at over 100.degree. C. with water at 50.degree.-95.degree. C. The water-soluble liquid may be for example 1,2-propandiol or a liquid more volatile than water such as ethanol, propanol or tertiary butanol. A surfactant may be present or added after contacting, for example one providing steric stabilisation such as an acrylic graft copolymer emulsifier.Type: GrantFiled: January 6, 1998Date of Patent: April 6, 1999Assignee: Monsanto CompanyInventors: John MacDonald Liddell, Neil George, Peter Deryck Turner
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Patent number: 5809606Abstract: A wheel cleaning cover, such as for a golf trolley wheel, is formed of a pair of hinged circular covers, each forming a semi-circular half and made of a light, robust material. When the golf trolley is not in use, a pair of such wheel covers can be closed around respective ones of the golf trolley's wheels. For each such wheel, the hinged semi-circular halves are securely fastened to one another to encase the associated wheel therewithin. The trolley wheels can remain on their axle(s) while the covers are securely closed around the wheels. When a cover is closed around its associated wheel and secured, it can be rotated and a brush installed in the cover functions as a cleaner/buffer, removing any mud, dirt, or grass on the enclosed wheel's surface. Debris from the wheel is contained within the cover until the cover is removed from the wheel, then any debris may be discarded.Type: GrantFiled: March 3, 1997Date of Patent: September 22, 1998Inventors: Christopher John MacDonald, Graham Andrew MacDonald, Stewart Thomas MacDonald
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Patent number: 5798440Abstract: Polyester particles in suspension in a liquid can be agglomerated below their melting points and the agglomerated particles are more easily filtered.Type: GrantFiled: January 24, 1995Date of Patent: August 25, 1998Assignee: Zeneca LimitedInventors: John Macdonald Liddell, Neil George