Patents by Inventor David L. Hughes
David L. Hughes 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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Patent number: 7434508Abstract: Disclosed is a die press with a base, at least two cam members spaced from the base, an upper platen located between the base and the two cam members to define a space for a die, the upper platen being generally parallel to the base, the upper platen also being attached to the two cam members so that when the two cam members are actuated, the upper platen is moveable relative to the base, and a linkage connecting the two cam members so that the two cam members move in unison relative to each other when actuated.Type: GrantFiled: August 5, 2005Date of Patent: October 14, 2008Assignee: Ellison Educational Equipment, Inc.Inventors: Kevin L. Corcoran, Carl Von Hirsch, David L. Hughes, Jr.
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Patent number: 7066083Abstract: Disclosed is a die press, comprising a base, opposing first and second supports extending from the base, at least one cam member that is supported by the opposing supports, means for rotating the cam member, at least one bearing located on the cam member, a platen positioned generally between the at least one bearing and the base, and a cover being unitary with the platen, the cover being slidably engaged with the opposing supports to guide the platen during operation of the die press.Type: GrantFiled: September 15, 2003Date of Patent: June 27, 2006Assignee: Ellison Educational Equipment, Inc.Inventors: Kevin L. Corcoran, David L. Hughes, Jr.
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Patent number: 6994024Abstract: Disclosed is an embossing system to be used with a die press. The embossing system includes a force transfer assembly, which comprises a first cover and an opposite second cover with the first and second covers being connected by a hinge. The force transfer assembly further includes a stencil and an opposing form positioned internal of the force transfer assembly. The stencil and the form are adapted to sandwich an embossing material, such as paper, between the stencil and the form. The embossing system further includes a layer of static vinyl that is located internally of one of the covers to secure the form to the internal side of one of the covers. The embossing system also utilizes an adhesive located on the cover opposite the cover with the vinyl to secure the stencil to the internal side of the opposite cover.Type: GrantFiled: September 16, 2003Date of Patent: February 7, 2006Assignee: Ellison Educational Equipment, Inc.Inventors: Kevin L. Corcoran, David L. Hughes
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Patent number: 6945166Abstract: Disclosed is a die press with a base, at least two cam members spaced from the base, an upper platen located between the base and the two cam members to define a space for a die, the upper platen being generally parallel to the base, the upper platen also being attached to the two cam members so that when the two cam members are actuated, the upper platen is moveable relative to the base, and a linkage connecting the two cam members so that the two cam members move in unison relative to each other when actuated.Type: GrantFiled: May 22, 2002Date of Patent: September 20, 2005Assignee: Ellison Educational Equipment, Inc.Inventors: Kevin L. Corcoran, Carl Von Hirsch, David L. Hughes, Jr.
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Publication number: 20040118304Abstract: Disclosed is an embossing system to be used with a die press. The embossing system includes a force transfer assembly, which comprises a first cover and an opposite second cover with the first and second covers being connected by a hinge. The force transfer assembly further includes a stencil and an opposing form positioned internal of the force transfer assembly. The stencil and the form are adapted to sandwich an embossing material, such as paper, between the stencil and the form. The embossing system further includes a layer of static vinyl that is located internally of one of the covers to secure the form to the internal side of one of the covers. The embossing system also utilizes an adhesive located on the cover opposite the cover with the vinyl to secure the stencil to the internal side of the opposite cover.Type: ApplicationFiled: September 16, 2003Publication date: June 24, 2004Applicant: Ellison Educational Equipment, Inc.Inventors: Kevin L. Corcoran, David L. Hughes
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Publication number: 20040112196Abstract: Disclosed is a die press cutting system that includes a commercial die press including a working area with a cutting height, a consumer die adapted to be located in the working area of a consumer press with a cutting height smaller than the cutting height of the commercial press, a consumer die having a steel rule height that is custom or specific to the consumer press working area, and an adapter having a thickness or height that is generally approximately equal to the difference between the height of a commercial die and the height of the consumer press die.Type: ApplicationFiled: July 17, 2003Publication date: June 17, 2004Applicant: Ellison Educational Equipment, Inc.Inventors: Lisa Corcoran, David L. Hughes, Kevin L. Corcoran
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Patent number: 6626965Abstract: A die cutting block for forming die cuts from paper and other materials includes a base portion having a recess formed therein having a desired shape formed therein, an insert portion having an outer contour which substantially matches the contour of the recess and a blade interposed between and tightly held between the base portion and the insert portion. The blade extends above the base portion and insert portion to provide an exposed edge for cutting paper and the like into a desired shape.Type: GrantFiled: June 29, 2001Date of Patent: September 30, 2003Assignee: Provo Craft & Novelty, Inc.Inventors: Robert E. Workman, David L. Hughes, Jr., Kevin L. Corcoran, Faye Angevine, Huang Lin-Sheng
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Patent number: 6619195Abstract: Disclosed is a die press, comprising a base, opposing first and second supports extending from the base, at least one cam member that is supported by the opposing supports, means for rotating the cam member, at least one bearing located on the cam member, a platen positioned generally between the at least one bearing and the base, and a cover being unitary with the platen, the cover being slidably engaged with the opposing supports to guide the platen during operation of the die press.Type: GrantFiled: July 3, 2002Date of Patent: September 16, 2003Assignee: Ellison Educational Equipment, Inc.Inventors: Kevin L. Corcoran, David L. Hughes, Jr.
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Publication number: 20030019370Abstract: Disclosed is a die press, comprising a base, opposing first and second supports extending from the base, at least one cam member that is supported by the opposing supports, means for rotating the cam member, at least one bearing located on the cam member, a platen positioned generally between the at least one bearing and the base, and a cover being unitary with the platen, the cover being slidably engaged with the opposing supports to guide the platen during operation of the die press.Type: ApplicationFiled: July 3, 2002Publication date: January 30, 2003Applicant: Ellison Educational Equipment, Inc.Inventors: Kevin L. Corcoran, David L. Hughes
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Publication number: 20030000354Abstract: A die cutting block for forming die cuts from paper and other materials includes a base portion having a recess formed therein having a desired shape formed therein, an insert portion having an outer contour which substantially matches the contour of the recess and a blade interposed between and tightly held between the base portion and the insert portion. The blade extends above the base portion and insert portion to provide an exposed edge for cutting paper and the like into a desired shape.Type: ApplicationFiled: June 29, 2001Publication date: January 2, 2003Inventors: Robert E. Workman, David L. Hughes, Faye Angevine, Huang Lin-Sheng
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Publication number: 20020178935Abstract: Disclosed is a die press with a base, at least two cam members spaced from the base, an upper platen located between the base and the two cam members to define a space for a die, the upper platen being generally parallel to the base, the upper platen also being attached to the two cam members so that when the two cam members are actuated, the upper platen is moveable relative to the base, and a linkage connecting the two cam members so that the two cam members move in unison relative to each other when actuated.Type: ApplicationFiled: May 22, 2002Publication date: December 5, 2002Applicant: Ellison Educational Equipment, Inc.Inventors: Kevin L. Corcoran, Carl Von Hirsch, David L. Hughes
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Patent number: 6333435Abstract: A process of synthesizing a compound of the formula 1: is disclosed, which comprises reacting a compound of the formula 2: with diphenylphosphine in the presence of an amine base and a nickel catalyst to produce a compound of formula 1.Type: GrantFiled: May 18, 1995Date of Patent: December 25, 2001Assignee: Merck & Co., Inc.Inventors: Dongwei Cai, David L. Hughes, Sylvain Levac, Thomas R. Verhoeven
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Patent number: 6262268Abstract: A novel process is provided for the preparation of 3-(5,6,7,8-tetrahydro-[1,8]-naphthyridin-2-yl)-propylamine which is useful in the synthesis of &agr;v integrin receptor antagonists. Also provided are useful intermediates obtained from the process.Type: GrantFiled: November 9, 2000Date of Patent: July 17, 2001Assignee: Merck & Co., Inc.Inventors: Michael Palucki, David L. Hughes, Chunhua Yang, Nobuyoshi Yasuda
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Patent number: 5892082Abstract: The present invention is directed to a process for the preparation of the reagent dimethyl titanocene (Cp.sub.2 Ti(CH.sub.3).sub.2) from titanocene dichloride (Cp.sub.2 TiCl.sub.2) and a methyl magnesium halide, in particular, methyl magnesium chloride (CH.sub.3 MgCl). The instant process provides the desired reagent in a manner which is generally less hazardous and more economical than previous methods.Type: GrantFiled: March 7, 1997Date of Patent: April 6, 1999Assignee: Merck & Co., Inc.Inventors: Dongwei Cai, Ian F. Cottrell, David L. Hughes, Joseph F. Payack
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Patent number: 5665882Abstract: The invention is a highly efficient synthesis for making compounds of formula: ##STR1## wherein n=0, 1, R is C.sub.1-4 alkyl or benzyl; andR.sup.1, when present, is C.sub.1-4 alkyl, OH, O--C.sub.1-4 alkyl or S--C.sub.1-4 alkyl. The process involves silane-mediated conjugation of 4-vinylpyridine to a substituted lactam.Type: GrantFiled: August 29, 1996Date of Patent: September 9, 1997Assignee: Merck & Co., Inc.Inventors: John Y. L. Chung, Dalian Zhao, James M. McNamara, David L. Hughes
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Patent number: 5552521Abstract: There is disclosed a novel process for preparing aza cyclohexapeptides of the formula ##STR1## where all variables are defined herein.Type: GrantFiled: February 10, 1995Date of Patent: September 3, 1996Assignee: Merck & Co., Inc.Inventors: Kevin M. Belyk, Dean R. Bender, Regina M. Black, David L. Hughes, William Leonard
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Patent number: 5340927Abstract: A novel process for preparing 2-diazo-3-trisubstituted silyloxy-3-butenoates, synthons useful in the conversion of 3-substituted-4-acetoxy azetidinones and penicillin to thienamycin, imipenem and other carbapenem antibiotic compounds is provided, comprising the reaction of the appropriate diazo acetoacetate with the substituted silane, base and salt.Type: GrantFiled: March 2, 1992Date of Patent: August 23, 1994Assignee: Merck & Co., Inc.Inventor: David L. Hughes
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Patent number: D468187Type: GrantFiled: April 26, 2002Date of Patent: January 7, 2003Assignee: Ellison Educational Equipment, Inc.Inventors: Kevin L. Corcoran, David L. Hughes, Jr., Guorui Deng
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Patent number: D472564Type: GrantFiled: April 26, 2002Date of Patent: April 1, 2003Assignee: Ellison Educational Equipment, Inc.Inventors: Kevin L. Corcoran, David L. Hughes, Jr., Guorui Deng, Faye Angevine
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Patent number: D685049Type: GrantFiled: July 2, 2012Date of Patent: June 25, 2013Inventor: David L. Hughes