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David Perry Symmes, 807 Andrews Ln, Amesbury, MA 01913

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7 Andrews Ln, Amesbury, MA 01913    978-3889052   

Rockport, ME   

17 Bare Hill Rd, Topsfield, MA 01983    978-8872684   

12 Bare Hill Rd, Topsfield, MA 01983   

67 Summer St, Saugus, MA 01906    781-2333168   

Danvers, MA   

Effingham, NH   

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Us Patents

System For Reducing The Emission Of High Frequency Electromagnetic Waves From Computer Systems

US Patent:
5285007, Feb 8, 1994
Filed:
Feb 3, 1992
Appl. No.:
7/829649
Inventors:
Alfred E. Deluca - Harvard MA
Jeffrey M. Lewis - Maynard MA
Cosmo L. Leo - Watertown MA
Thomas J. Orr - Sudbury MA
David T. Symmes - Danvers MA
Robert A. Barker - Lunenburg MA
Assignee:
Digital Equipment Corporation - Maynard MA
International Classification:
H05K 900
US Classification:
174 35R
Abstract:
A containment system for significantly reducing the emission of high frequency electromagnetic waves from a computer system into the external environment. The containment system includes the combination of two enclosures and a shielding assembly. One of the enclosures is associated with the high frequency components and the other with the low frequency components of the computer system. The shielding assembly is positioned between the two enclosures to prevent high frequency electromagnetic waves from passing from one chamber to the other over the connection between the two chambers.

Integrated Installation Assembly With Self Aligning Connector

US Patent:
5128830, Jul 7, 1992
Filed:
Jul 2, 1990
Appl. No.:
7/547739
Inventors:
Alfred E. Deluca - Harvard MA
David T. Symmes - Danvers MA
Jeffrey M. Lewis - Maynard MA
Assignee:
Digital Equipment Corporation - MA
International Classification:
H05K 720
US Classification:
361383
Abstract:
An integrated installation assembly for removably supporting a hardware module within a computer cabinet. The integrated installation assembly comprises a substantially ridgid frame work having interconnected top frame member and bottom frame member which has a back portion. Also included is a cover spaced from the back portion of the bottom frame member. The frame members and the front cover define an interior support space in which a hardware module can be mounted. Shock absorbing means are connected to the framework of the assembly for minimizing the vibration of the hardware module. Ventilation is provided through the front cover and the top and bottom frame member for cooling the hardware module. The front cover also includes control elements for operating the hardware module and status information elements which give operating status information about the hardware module. A self aligning connector capable of multidirectional, planar movement within certain tolerances is included for blind mating the hardware module with the computer cabinet.

Shock Absorbing Apparatus For Mounting A Plurality Of Storage Devices In A Stacked Configuration

US Patent:
5333098, Jul 26, 1994
Filed:
Dec 13, 1993
Appl. No.:
8/166284
Inventors:
Alfred E. DeLuca - Harvard MA
Stanley W. Stefanick - Uxbridge MA
Cosmo L. Leo - Watertown MA
Thomas J. Orr - Sudbury MA
David T. Symmes - Danvers MA
Henry Wright - Ipswich MA
Assignee:
Digital Equipment Corporation - Maynard MA
International Classification:
H05K 712
G06F 116
F16M 1300
US Classification:
361685
Abstract:
A storage assembly for mounting "0" to "N" storage devices to a computer or electronic system. The storage assembly has an assembly base that connects to the housing of the system, "1" to "M" tray members that support "0" to "N" storage devices with the "1" to "M" tray members being connected such that they form a stack of tray members and each tray member has a least one storage device attached to it, shock mount assemblies for movably attaching the stack of tray members with the storage devices attached thereto to the base and for protecting the tray members of storage devices from normal shocks and vibrations, and severe shocks in the horizontal, vertical, and angular directions, 97 LDC board that provides regulated power to the storage devices, an interface board for transferring data to, and receiving data from, the storage devices via a cable assembly that connects to the storage devices in a daisy chain fashion, and 9 connector that connects to the interface board and the storage devices that permits connection of the storage devices and interface board to external devices.

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