Patents by Inventor David K. Shaffer

David K. Shaffer 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: 6460549
    Abstract: Disclosed is a process of recycling and reusing an aqueous degreasing solution for further use as a component of a coolant solution which is itself recycled and reused in metal cutting machines. Also disclosed is a method of degreasing parts, and a degreasing apparatus which is controlled such that an appropriate amount of the aqueous degreasing solution is introduced into the coolant solution. Finally, disclosed herein is a method and system for preparing a coolant in which an aqueous degreasing solution is further utilized as a feeder solution for a coolant solution, with the resulting solution being able to be separated into its component parts and reused in the cutting and cleaning of metals to form metal parts.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: October 8, 2002
    Assignee: Masco Corporation of Indiana
    Inventors: Mitchell H. Berger, Dennis L. Foster, David K. Shaffer, Phillip B. Simon, John D. Wheatley
  • Patent number: 6435198
    Abstract: Disclosed is a process of recycling and reusing an aqueous degreasing solution for further use as a component of a coolant solution which is itself recycled and reused in metal cutting machines. Also disclosed is a method of degreasing parts, and a degreasing apparatus which is controlled such that an appropriate amount of the aqueous degreasing solution is introduced into the coolant solution. Finally, disclosed herein is a method and system for preparing a coolant in which an aqueous degreasing solution is further utilized as a feeder solution for a coolant solution, with the resulting solution being able to be separated into its component parts and reused in the cutting and cleaning of metals to form metal parts.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: August 20, 2002
    Assignee: Masco Corporation of Indiana
    Inventors: Mitchell H. Berger, Dennis L. Foster, David K. Shaffer, Phillip B. Simon, John D. Wheatley
  • Publication number: 20020014258
    Abstract: Disclosed is a process of recycling and reusing an aqueous degreasing solution for further use as a component of a coolant solution which is itself recycled and reused in metal cutting machines. Also disclosed is a method of degreasing parts, and a degreasing apparatus which is controlled such that an appropriate amount of the aqueous degreasing solution is introduced into the coolant solution. Finally, disclosed herein is a method and system for preparing a coolant in which an aqueous degreasing solution is further utilized as a feeder solution for a coolant solution, with the resulting solution being able to be separated into its component parts and reused in the cutting and cleaning of metals to form metal parts.
    Type: Application
    Filed: October 11, 2001
    Publication date: February 7, 2002
    Inventors: Mitchell H. Berger, Dennis L. Foster, David K. Shaffer, Phillip B. Simon, John D. Wheatley
  • Patent number: 6343610
    Abstract: Disclosed is a process of recycling and reusing an aqueous degreasing solution for further use as a component of a coolant solution which is itself recycled and reused in metal cutting machines. Also disclosed is a method of degreasing parts, and a degreasing apparatus which is controlled such that an appropriate amount of the aqueous degreasing solution is introduced into the coolant solution. Finally, disclosed herein is a method and system for preparing a coolant in which an aqueous degreasing solution is further utilized as a feeder solution for a coolant solution, with the resulting solution being able to be separated into its component parts and reused in the cutting and cleaning of metals to form metal parts.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: February 5, 2002
    Assignee: Masco Corporation of Indiana
    Inventors: Mitchell H. Berger, Dennis L. Foster, David K. Shaffer, Phillip B. Simon, John D. Wheatley
  • Publication number: 20020011261
    Abstract: Disclosed is a process of recycling and reusing an aqueous degreasing solution for further use as a component of a coolant solution which is itself recycled and reused in metal cutting machines. Also disclosed is a method of degreasing parts, and a degreasing apparatus which is controlled such that an appropriate amount of the aqueous degreasing solution is introduced into the coolant solution. Finally, disclosed herein is a method and system for preparing a coolant in which an aqueous degreasing solution is further utilized as a feeder solution for a coolant solution, with the resulting solution being able to be separated into its component parts and reused in the cutting and cleaning of metals to form metal parts.
    Type: Application
    Filed: October 11, 2001
    Publication date: January 31, 2002
    Inventors: Mitchell H. Berger, Dennis L. Foster, David K. Shaffer, Phillip B. Simon, John D. Wheatley
  • Patent number: 5983910
    Abstract: Disclosed is a process of recycling and reusing an aqueous degreasing solution for further use as a component of a coolant solution which is itself recycled and reused in metal cutting machines. Also disclosed is a method of degreasing parts, and a degreasing apparatus which is controlled such that an appropriate amount of the aqueous degreasing solution is introduced into the coolant solution. Finally, disclosed herein is a method and system for preparing a coolant in which an aqueous degreasing solution is further utilized as a feeder solution for a coolant solution, with the resulting solution being able to be separated into its component parts and reused in the cutting and cleaning of metals to form metal parts.
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: November 16, 1999
    Assignee: Masco Corporation of Indiana
    Inventors: Mitchell H. Berger, Dennis L. Foster, David K. Shaffer, Phillip B. Simon, John D. Wheatley
  • Patent number: 5795400
    Abstract: In a metalworking process, an aqueous based degreasing solution which is used to clean manufactured parts, is recycled as a component of an aqueous based coolant fluid which is employed in the metalworking process used to fabricate the parts.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: August 18, 1998
    Inventors: Mitchell H. Berger, Dennis L. Foster, David K. Shaffer, Phillip B. Simon, John D. Wheatley
  • Patent number: 5115407
    Abstract: An integrated certification-calibration system for a test system having multiple test instruments is disclosed. The system of this invention is used for certifying and calibrating processor-controllable test instruments that are arranged in at least two groups of separate test instruments, where each group has a separate system controller for controlling the test instruments associated therewith. The system of this invention includes a portable certification cart containing a number of processor-controllable certification instruments for certifying the various test instruments. Interconnection cables are provided for selectively interconnecting the individual groups of test instruments to the certification instruments and for connecting the system controllers associated therewith to the certification instruments.
    Type: Grant
    Filed: April 10, 1991
    Date of Patent: May 19, 1992
    Assignee: The Boeing Company
    Inventors: Ronald W. Bird, David K. Shaffer
  • Patent number: 5079707
    Abstract: An integrated certification-calibration system for a test system having multiple test instruments is disclosed. The system of this invention is used for certifying and calibrating processor-controllable test instruments that are arranged in at least two groups of separate test instruments, where each group has a separate system controller for controlling the test instruments associated therewith. The system of this invention includes a portable certification cart containing a number of processor-controllable certification instruments for certifying the various test instruments. Interconnection cables are provided for selectively interconnecting the individual group sof test instruments to the certification instruments and for connecting the system controllers associated therewith to the certification instruments.
    Type: Grant
    Filed: January 19, 1990
    Date of Patent: January 7, 1992
    Assignee: The Boeing Company
    Inventors: Ronald W. Bird, David K. Shaffer
  • Patent number: D1021892
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: April 9, 2024
    Assignee: Apple Inc.
    Inventors: Jody Akana, Bartley K. Andre, Shota Aoyagi, Anthony Michael Ashcroft, Jeremy Bataillou, Daniel J. Coster, Daniele De Iuliis, M. Evans Hankey, Julian Hoenig, Richard P. Howarth, Jonathan P. Ive, Duncan Robert Kerr, Scott A. Myers, David A. Pakula, Rasamy Phouthavong, Matthew Dean Rohrbach, Peter Russell-Clarke, Benjamin Andrew Shaffer, Ashutosh Y. Shukla, Mikael Silvanto, Christopher J. Stringer, Eugene Antony Whang, Rico Zörkendörfer