Patents by Inventor Daniel M. Snow

Daniel M. Snow 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).

  • Enclosure for electronic modules
    Patent number: 5638259
    Abstract: A Faraday shield minimizes the leakage of electromagnetic interference (EMI) and radio frequency interference (RFI) of a maximum frequency and corresponding wavelength that emanates from electronic components contained within the shield. The top and bottom each contain apertures that are dimensioned to effectively block the escape of EMI and RFI from the shield and to permit the flow of air to dissipate heat without generating acoustic noise. The thickness of the top of the shield is at least one half of the diagonal length across the largest of the apertures located in the top. The length of the longest aperture side is less than one fourth of the wavelength of the maximum frequency of EMI and RFI contained by the shield. Corresponding relationships exist between the apertures located in the shield bottom and its thickness.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: June 10, 1997
    Assignee: Digital Equipment Corporation
    Inventors: William F. McCarthy, Colin E. Brench, Daniel M. Snow
  • Enclosure for electronic modules
    Patent number: 5535099
    Abstract: A Faraday shield minimizes the leakage of electromagnetic interference (EMI) and radio frequency interference (RFI) of a maximum frequency and corresponding wavelength that emanates from electronic components contained within the shield. The top and bottom each contain apertures that are dimensioned to effectively block the escape of EMI and RFI from the shield and to permit the flow of air to dissipate heat without generating acoustic noise. The thickness of the top of the shield is at least one half of the diagonal length across the largest of the apertures located in the top. The length of the longest aperture side is less than one fourth of the wavelength of the maximum frequency of EMI and RFI contained by the shield. Corresponding relationships exist between the apertures located in the shield bottom and its thickness.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: July 9, 1996
    Assignee: Digital Equipment Corporation
    Inventors: William F. McCarthy, Colin E. Brench, Daniel M. Snow
  • Enclosure for electronic modules
    Patent number: 5398822
    Abstract: A Faraday shield minimizes the leakage of electromagnetic interference (EMI) and radio frequency interference (RFI) of a maximum frequency and corresponding wavelength that emanates from electronic components contained within the shield. The top and bottom each contain apertures that are dimensioned to effectively block the escape of EMI and RFI from the shield and to permit the flow of air to dissipate heat without generating acoustic noise. The thickness of the top of the shield is at least one half of the diagonal length across the largest of the apertures located in the top. The length of the longest aperture side is less than one fourth of the wavelength of the maximum frequency of EMI and RFI contained by the shield. Corresponding relationships exist between the apertures located in the shield bottom and its thickness.
    Type: Grant
    Filed: November 10, 1993
    Date of Patent: March 21, 1995
    Assignee: Digital Equipment Corporation
    Inventors: William F. McCarthy, Colin E. Brench, Daniel M. Snow
  • Enclosure for electronic modules
    Patent number: 5289347
    Abstract: A Faraday shield minimizes the leakage of electromagnetic interference (EMI) and radio frequency interference (RFI) of a maximum frequency and corresponding wavelength that emanates from electronic components contained within the shield. The top and bottom each contain apertures that are dimensioned to effectively block the escape of EMI and RFI from the shield and to permit the flow of air to dissipate heat without generating acoustic noise. The thickness of the top of the shield is at least one half of the diagonal length across the largest of the apertures located in the top. The length of the longest aperture side is less than one fourth of the wavelength of the maximum frequency of EMI and RFI contained by the shield. Corresponding relationships exist between the apertures located in the shield bottom and its thickness.
    Type: Grant
    Filed: June 4, 1992
    Date of Patent: February 22, 1994
    Assignee: Digital Equipment Corporation
    Inventors: William F. McCarthy, Colin E. Brench, Daniel M. Snow
  • Card cage enclosure
    Patent number: D347624
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: June 7, 1994
    Assignee: Digital Equipment Corporation
    Inventors: William F. McCarthy, Kenneth R. Palumbo, Robert D. Hellweg, Jr., Richard M. Masters, Colin E. Brench, Daniel M. Snow, Peter B. Barron, Michael Freeman, Christopher H. Williams