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).

  • Publication number: 20040170788
    Abstract: 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: Application
    Filed: March 10, 2004
    Publication date: September 2, 2004
    Inventors: John MacDonald, Michael Conroy, MaryLou Smith LeCoz, Marvin Nelson
  • Patent number: 6709619
    Abstract: 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: Grant
    Filed: May 3, 2002
    Date of Patent: March 23, 2004
    Assignee: Textron Automotive Company Inc.
    Inventors: John MacDonald, Michael Conroy, MaryLou Smith LeCoz, Marvin Nelson
  • Publication number: 20030109601
    Abstract: 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: Application
    Filed: May 3, 2002
    Publication date: June 12, 2003
    Inventors: John MacDonald, Michael Conroy, MaryLou Smith LeCoz, Marvin Nelson
  • Patent number: 6527649
    Abstract: 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: Grant
    Filed: September 20, 2001
    Date of Patent: March 4, 2003
    Inventors: Lloyd A. Neher, John MacDonald
  • Publication number: 20030016927
    Abstract: 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: Application
    Filed: May 15, 2002
    Publication date: January 23, 2003
    Applicant: IntelCore Technologies
    Inventors: Abdelouahed Soufiane, Musa Awaleh, John MacDonald, Paula Fournier
  • Publication number: 20020099576
    Abstract: 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: Application
    Filed: January 22, 2001
    Publication date: July 25, 2002
    Inventors: John A. MacDonald, Gregory S. Davis, Bradford Meiseles
  • Patent number: 6409493
    Abstract: 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: Grant
    Filed: March 20, 2000
    Date of Patent: June 25, 2002
    Assignee: Textron Automotive Company, Inc.
    Inventors: John MacDonald, Michael Conroy, MaryLou Smith LeCoz, Marvin Nelson
  • Patent number: 6334142
    Abstract: 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: Grant
    Filed: October 29, 1998
    Date of Patent: December 25, 2001
    Assignee: British Telecommunications public limited company
    Inventors: Eric Robert Newton, Simon John MacDonald, David Richard Cruickshank, Phil Clark
  • Patent number: 6180376
    Abstract: 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: Grant
    Filed: January 20, 1998
    Date of Patent: January 30, 2001
    Assignee: Zeneca Limited
    Inventor: John Macdonald Liddell
  • Patent number: 6146879
    Abstract: 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: Grant
    Filed: November 12, 1997
    Date of Patent: November 14, 2000
    Assignee: Zeneca Limited
    Inventors: John Macdonald Liddell, William Greer
  • Patent number: 6053292
    Abstract: 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: Grant
    Filed: January 25, 1999
    Date of Patent: April 25, 2000
    Assignee: Ford Global Technologies, Inc.
    Inventor: Fraser John Macdonald
  • Patent number: 6006878
    Abstract: 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: Grant
    Filed: February 12, 1999
    Date of Patent: December 28, 1999
    Assignee: Ford Global Technologies, Inc.
    Inventors: Fraser John Macdonald, David Hargrave
  • Patent number: 5977250
    Abstract: 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: Grant
    Filed: November 24, 1997
    Date of Patent: November 2, 1999
    Assignee: Monsanto Company
    Inventors: Neil George, Timothy Hammond, John MacDonald Liddell, Rajasingham Satgurunathan, Peter Deryk Turner
  • Patent number: 5964328
    Abstract: 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: Grant
    Filed: July 9, 1997
    Date of Patent: October 12, 1999
    Assignee: Ford Global Techologies, Inc.
    Inventors: John William Fallu, Fraser John MacDonald, Stephen Harold Henning
  • Patent number: 5952460
    Abstract: 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: Grant
    Filed: July 7, 1997
    Date of Patent: September 14, 1999
    Assignee: Monsanto Company
    Inventors: John MacDonald Liddell, Neil George, Alan Hall
  • Patent number: 5947243
    Abstract: 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: Grant
    Filed: July 14, 1997
    Date of Patent: September 7, 1999
    Assignee: Ford Global Technologies, Inc.
    Inventor: Fraser John MacDonald
  • Patent number: 5894062
    Abstract: 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: Grant
    Filed: June 16, 1997
    Date of Patent: April 13, 1999
    Assignee: Monsanto Company
    Inventor: John MacDonald Liddell
  • Patent number: 5891936
    Abstract: 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: Grant
    Filed: January 6, 1998
    Date of Patent: April 6, 1999
    Assignee: Monsanto Company
    Inventors: John MacDonald Liddell, Neil George, Peter Deryck Turner
  • Patent number: 5809606
    Abstract: 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: Grant
    Filed: March 3, 1997
    Date of Patent: September 22, 1998
    Inventors: Christopher John MacDonald, Graham Andrew MacDonald, Stewart Thomas MacDonald
  • Patent number: 5798440
    Abstract: Polyester particles in suspension in a liquid can be agglomerated below their melting points and the agglomerated particles are more easily filtered.
    Type: Grant
    Filed: January 24, 1995
    Date of Patent: August 25, 1998
    Assignee: Zeneca Limited
    Inventors: John Macdonald Liddell, Neil George