Patents by Inventor Richard Dykstra

Richard Dykstra 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: 6514925
    Abstract: N,N diacyl O-substituted imide bleach activators and compositions employing them are provided. The activators have the general formula: wherein X is selected from O, NR16 and S; e is 0 or 1; f is 0 or 1; R16 is selected from H and C1-C4 linear or branched, saturated or unsaturated alkyl groups; and R1 is preferably phenyl or C7-C13 linear or branched chain, saturated or unsaturated alkyl; R2 is preferably C1-C10 branched or unbranched, saturated or unsaturated alkyl and R3 is preferably C1-C12 linear or branched chain, saturated or unsaturated alkyl. Bleach additive and bleaching compositions including the bleach activators and methods of cleaning fabrics are also provided.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: February 4, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Gregory Scot Miracle, Robert Richard Dykstra
  • Publication number: 20030004072
    Abstract: The first aspect of the present invention relates to a photo-activated pro-accord conjugate having the formula: 1
    Type: Application
    Filed: March 26, 2002
    Publication date: January 2, 2003
    Applicant: The Procter & Gamble Company
    Inventors: Robert Richard Dykstra, Gregory Scot Miracle
  • Publication number: 20020128505
    Abstract: The invention relates to a process for purifying and decolorizing a phenyl ester salt. The process combines a phenyl ester salt with a solvent to form a mixture and then stirs the mixture to form a slurry. The phenyl ester salt is substantially insoluble in this solvent. The process then collects the phenyl ester salt from the slurry. The collected phenyl ester salt may then be optionally dried or recrystallized. The collected phenyl ester salt is dissolved in a solvent to form a solution. The solution is decolorized and then spray dried to form a powder of the phenyl ester salt. As a result of the process the phenyl ester salt powder has a higher purity and an improved color as compared to the starting phenyl ester salt.
    Type: Application
    Filed: June 4, 2001
    Publication date: September 12, 2002
    Inventors: Bhaskar Krishna Arumugam, Michael Eugene Burns, Dimmick Lee Bymaster, Jeffrey Scott Dupont, Robert Richard Dykstra, Robert Lee Eagan, Eddie Joseph Eckart, Jarvey Eugene Felty, Kevin John Fontenot, Jeffrey William Green, Shane Kipley Kirk, Gary Paul Lutz, Tony Lee Sander, Thomas Hugh Williams, George Chester Zima
  • Publication number: 20020123445
    Abstract: Novel bleaching compositions comprising organic catalyst compounds, preferably branched organic catalyst compounds, and an anionic surfactant, methods for laundering fabrics using such bleaching compositions, and laundry additive products containing such bleaching compositions are provided.
    Type: Application
    Filed: February 27, 2002
    Publication date: September 5, 2002
    Applicant: The Procter & Gamble Company
    Inventors: Robert Richard Dykstra, Marc Eric Gustwiller, Tonya Ann Howard
  • Publication number: 20020103101
    Abstract: The invention relates to stabilized amido acid compositions. More particularly, the invention relates to compositions of amido acids, such as 6-nonanoylamidohexanoic acid, stabilized with antioxidants. The stabilized amido acid compositions are useful in the manufacture of bleach activators such as sodium nonanamidohexanoyloxybenzenesulfonate. Bleach activators made from the stabilized amido acids of the invention are capable of possessing improved coloration.
    Type: Application
    Filed: June 1, 2001
    Publication date: August 1, 2002
    Inventors: Dale Elbert Van Sickle, George Chester Zima, Jeffrey Scott DuPont, Robert Richard Dykstra
  • Patent number: 6423676
    Abstract: N,N diacyl O-substituted imide bleach activators and compositions employing them are provided. The activators have the general formula: wherein X is selected from O, NR16 and S; e is 0 or 1; f is 0 or 1; R16 is selected from H and C1-C4 linear or branched, saturated or unsaturated alkyl groups; and R1 is preferably phenyl or C7-C13 linear or branched chain, saturated or unsaturated alkyl; R2 is preferably C1-C10 branched or unbranched, saturated or unsaturated alkyl and R3 is preferably C1-C12 linear or branched chain, saturated or unsaturated alkyl. Bleach additive and bleaching compositions including the bleach activators and methods of cleaning fabrics are also provided.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: July 23, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Gregory Scot Miracle, Robert Richard Dykstra
  • Publication number: 20020094938
    Abstract: The present invention relates to photo-labile pro-fragrance conjugates comprising:
    Type: Application
    Filed: November 2, 2001
    Publication date: July 18, 2002
    Applicant: The Procter & Gamble Company
    Inventors: Robert Richard Dykstra, Gregory Scot Miracle, Lon Montgomery Gray
  • Patent number: 6386169
    Abstract: An engine starting and stopping device for an internal combustion engine includes an energy storing mechanism having at least one elastic member such as a spring, an input element engageable with the elastic member and movable during engine coast down to load the elastic member, and an output element that is movable in response to the energy storing mechanism. The output element is movable in response to the energy storing mechanism as the elastic member unloads from the loaded state, to thereby move a rotatable member (i.e., a crankshaft and/or flywheel) of the engine during starting of the engine. An input control device is also provided for positioning the input element into engagement with the rotatable member of the engine such that rotation of the rotatable member moves the input element to load the elastic member during engine coast down and also to brake the engine.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: May 14, 2002
    Assignee: Briggs & Stratton Corporation
    Inventors: Gary J. Gracyalny, Robert K. Mitchell, Art Poehlman, Richard Dykstra, Steven Dethloff, Charles Brown, Paul Tharman, John Santi, Dick Seilenbinder, Aaron Jerabek, John Feldner, Stanley Filipak
  • Publication number: 20020049150
    Abstract: The present invention relates to sustained release fragrance accords wherein the initial fragrance release or bouquet is not distorted by the presence of an unbalanced accord.
    Type: Application
    Filed: May 30, 2001
    Publication date: April 25, 2002
    Inventors: Gregory Scot Miracle, Robert Richard Dykstra, Lynette Anne Makins Holland, Jill Maureen Mattila
  • Patent number: 6369250
    Abstract: The present invention relates to a process for the preparation of a purified salt of 4-sulfophenyl-[(1-oxyalkanoyl)amino]alkanoate. The process comprises the steps of: (a) providing a source of 4-sulfophenyl-[(1-oxyalkanoyl)amino]alkanoate; (b) admixing the source with a water-based purification system to form a purification mixture, the water-based purification system having water present at a ratio of 4-sulfophenyl-[(1-oxyalkanoyl)amino]alkanoate to water ranging from about 1:0.05 to about 1:50, preferably from about 1:0.1 to about 1:40; (c) separating a purified salt of 4-sulfophenyl-[(1-oxyalkanoyl)amino]alkanoate from the purification mixture; and (d) collecting said purified salt of 4-sulfophenyl-[(1-oxyalkanoyl)amino]alkanoate. In preferred embodiments, the purification mixture includes a processin aide such as ethyl alcohol, propyl alcohol, isopropyl alcohol, acetone and mixtures thereof.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: April 9, 2002
    Assignee: Procter & Gamble Company
    Inventors: Robert Richard Dykstra, Jeffrey Scott Dupont, Michael Eugene Burns
  • Patent number: 6365564
    Abstract: Asymmetrical imide bleach activators for use in both solid and liquid additive, bleaching and detergent compositions are provided. The compounds have general formula (I) wherein R1 is a moiety selected from a specific group, R2 is a C1-C8 linear or branched chain saturated or unsaturated alkyl group and R3 is a C1-C4 linear or branched chain saturated or unsaturated alkyl group. Preferred compounds include the compounds when R2 and R3 are CH3. Bleach additive and bleaching compositions including the asymmetrical bleach activators and methods of cleaning fabrics are also provided.
    Type: Grant
    Filed: April 15, 1999
    Date of Patent: April 2, 2002
    Assignee: The Procter & Gamble Co.
    Inventors: Kevin Lee Kott, Gregory Scot Miracle, James Charles T. R. Burckett-St. Laurent, Robert Richard Dykstra
  • Publication number: 20010046953
    Abstract: N,N diacyl O-substituted imide bleach activators and compositions employing them are provided.
    Type: Application
    Filed: May 18, 2001
    Publication date: November 29, 2001
    Applicant: The Procter & Gamble Company
    Inventors: Gregory Scot Miracle, Robert Richard Dykstra
  • Patent number: 6311663
    Abstract: An internal combustion engine includes an engine housing, a crankshaft supported within the engine housing for rotation with respect to the engine housing, and a flywheel fixedly mounted to the crankshaft and rotatable with the crankshaft in a starting direction to start the engine. A coil spring has an outer end fixedly interconnected with respect to the engine housing, and an inner end. A unidirectional clutch has a portion connected to the inner end of the spring. The unidirectional clutch is characterized by an interference condition in which the unidirectional clutch couples the inner end of the spring to the flywheel such that the flywheel and crankshaft may be rotated in the starting direction in response to unloading of the spring. The unidirectional clutch is also characterized by a non-interference condition in which the inner end of the spring is uncoupled from the flywheel.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: November 6, 2001
    Assignee: Briggs & Stratton Corporation
    Inventors: Gary J. Gracyalny, Robert K. Mitchell, Art Poehlman, Richard Dykstra, Steven Dethloff, Charles Brown, Paul Tharman, John Santi, Dick Seilenbinder, Aaron Jerabek, John Feldner, Stanely Filipak
  • Patent number: 6291413
    Abstract: N,N diacyl O-substituted imide bleach activators and compositions employing them are provided. Bleach additive and bleaching compositions including the bleach activators and methods of cleaning fabrics are also provided.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: September 18, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Gregory Scot Miracle, Robert Richard Dykstra
  • Patent number: 6263852
    Abstract: An internal combustion engine includes an engine housing and a crankshaft supported for rotation within the engine housing and rotatable in a starting direction to start said engine. At least one cup is fixedly mounted to the crankshaft for rotation therewith. A starter shaft is supported by the engine housing for rotation. A spring housing includes a circumferential flange that defines an annular track with the at least one cup, and a spring is housed within the spring housing. The spring has a first end interconnected with the spring housing and a second end interconnected with the engine housing. A friction roller is movable into the annular track and into engagement with both of the circumferential flange and the at least one cup to cause rotation of the spring housing and loading of the spring in response to rotation of the crankshaft.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: July 24, 2001
    Assignee: Briggs & Stratton Corporation
    Inventors: Gary J. Gracyalny, Robert K. Mitchell, Art Poehlman, Richard Dykstra, Steven Dethloff, Charles Brown, Paul Tharman, John Santi, Dick Seilenbinder, Aaron Jerabek, John Feldner, Stanley Filipak
  • Publication number: 20010008130
    Abstract: An internal combustion engine includes an engine housing and a crankshaft supported for rotation within the engine housing and rotatable in a starting direction to start said engine. At least one cup is fixedly mounted to the crankshaft for rotation therewith. A starter shaft is supported by the engine housing for rotation. A spring housing includes a circumferential flange that defines an annular track with the at least one cup, and a spring is housed within the spring housing. The spring has a first end interconnected with the spring housing and a second end interconnected with the engine housing. A friction roller is movable into the annular track and into engagement with both of the circumferential flange and the at least one cup to cause rotation of the spring housing and loading of the spring in response to rotation of the crankshaft.
    Type: Application
    Filed: February 9, 2001
    Publication date: July 19, 2001
    Inventors: Gary J. Gracyalny, Robert K. Mitchell, Art Poehlman, Richard Dykstra, Steven Dethloff, Charles Brown, Paul Tharman, John Santi, Dick Seilenbinder, Aaron Jerabek, John Feldner, Stanely Filipak
  • Patent number: 6260529
    Abstract: An engine starting device for an internal combustion engine, includes an energy storing mechanism including at least one elastic member, an input element engageable with the elastic member and movable into contact with a rotatable engine member of an engine to load the elastic member, an output element that is movable in response to unloading of the elastic member, at least one manual actuator to enable unloading of the elastic member, a locking mechanism engageable with the energy storing mechanism to prevent the elastic member from unloading from a loaded state, a sliding member, a cam member mounted to the sliding member, a pivot link pivotably mounted to the sliding member, and a key device coupled to the pivot link. In operation, rotation of the key device in a locking direction causes the pivot link to move the sliding member, thereby causing the cam member to engage the locking mechanism when the locking mechanism is positioned in engagement with the energy storing mechanism.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: July 17, 2001
    Assignee: Briggs & Stratton Corporation
    Inventors: Gary J. Gracyalny, Robert K. Mitchell, Art Poehlman, Richard Dykstra, Steven Dethloff, Charles Brown, Paul Tharman, John Santi, Dick Seilenbinder, Aaron Jerabek, John Feldner, Stanely Filipak
  • Publication number: 20010006051
    Abstract: An engine starting device for an internal combustion engine, includes an energy storing mechanism including at least one elastic member, an input element engageable with the elastic member and movable into contact with a rotatable engine member of an engine to load the elastic member, an output element that is movable in response to unloading of the elastic member, at least one manual actuator to enable unloading of the elastic member, a locking mechanism engageable with the energy storing mechanism to prevent the elastic member from unloading from a loaded state, a sliding member, a cam member mounted to the sliding member, a pivot link pivotably mounted to the sliding member, and a key device coupled to the pivot link. In operation, rotation of the key device in a locking direction causes the pivot link to move the sliding member, thereby causing the cam member to engage the locking mechanism when the locking mechanism is positioned in engagement with the energy storing mechanism.
    Type: Application
    Filed: February 9, 2001
    Publication date: July 5, 2001
    Inventors: Gary J. Gracyalny, Robert K. Mitchell, Art Poehlman, Richard Dykstra, Steven Dethloff, Charles Brown, Paul Tharman, John Santi, Dick Seilenbinder, Aaron Jerabek, John Feldner, Stanely Filipak
  • Publication number: 20010006052
    Abstract: An internal combustion engine includes an engine housing, a crankshaft supported within the engine housing for rotation with respect to the engine housing, and a flywheel fixedly mounted to the crankshaft and rotatable with the crankshaft in a starting direction to start the engine. A coil spring has an outer end fixedly interconnected with respect to the engine housing, and an inner end. A unidirectional clutch has a portion connected to the inner end of the spring. The unidirectional clutch is characterized by an interference condition in which the unidirectional clutch couples the inner end of the spring to the flywheel such that the flywheel and crankshaft may be rotated in the starting direction in response to unloading of the spring. The unidirectional clutch is also characterized by a non-interference condition in which the inner end of the spring is uncoupled from the flywheel.
    Type: Application
    Filed: February 9, 2001
    Publication date: July 5, 2001
    Inventors: Gary J. Gracyalny, Robert K. Mitchell, Art Poehlman, Richard Dykstra, Steven Dethloff, Charles Brown, Paul Tharman, John Santi, Dick Seilenbinder, Aaron Jerabek, John Feldner, Stanley Filipak
  • Patent number: 6237555
    Abstract: A spark prevention apparatus during the exhaust stroke of a four-stroke-cycle internal combustion engine is claimed. A valve operating assembly operates an intake or an exhaust valve. A switch is electrically connected to a primary winding of the engine and actuated by the valve operating assembly such that either the primary winding is electrically connected to ground during the exhaust stroke or the primary winding is electrically connected to an energy storage device during the exhaust stroke.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: May 29, 2001
    Assignee: Briggs & Stratton Corporation
    Inventors: Richard A. Dykstra, Robert K. Mitchell, Gary J. Gracyalny