Erik J Nelson

US Patent:

7062620, Jun 13, 2006

Filed:

Dec 30, 2002

Appl. No.:

10/331423

Inventors:

David C. Bisbee - Princeton MA, US
Scot C. Tata - Blackstone MA, US
Erik C. Nelson - Upton MA, US
Thomas Delucia - Milford MA, US
Thomas E. Linnell - Northboro MA, US
William R. Tuccio - Sutton MA, US
Edward J. Claprood - Southboro MA, US
Enrico DiFabio - Cranston RI, US
Brian Gallagher - Southboro MA, US
Lawrence G. Pignolet - Mapleville RI, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G00F 12/00

US Classification:

711162, 711 4, 711112, 711114, 714 5, 714 6

Abstract:

A data storage interface for coupling data between processors and a bank of disk. The interface includes a plurality of first directors coupled to the processors and a plurality of second directors coupled to the bank of disk drives. A cache memory is coupled between the plurality of first directors and the plurality of second directors. The interface includes a pair of independent power busses. At least one of the first or second directors is coupled to the pair of independent power busses. One portion of the disk drives in the bank is connected to only a first one of the pair of power buses and a different portion of the disk drives is connected to only the other one of the pair of power buses. A power circuit includes a pair of input terminals, each one being electrically connected to a corresponding one of the pair of independent power busses. The circuit includes an output terminal.

US Patent:

7425026, Sep 16, 2008

Filed:

Jun 28, 2006

Appl. No.:

11/427140

Inventors:

David H. Henderson - Shirley MA, US
C. Ilhan Gundogan - Lexington MA, US
F. William French - Harvard MA, US
Erik C. Nelson - Upton MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

E05C 19/00

US Classification:

292302, 312222

Abstract:

Described are seismic-resistant equipment cabinets and door latches for enabling a hinged door to remain attached to the cabinet during a seismic event of a particular intensity. The door has a latch disposed along one edge of the door. The latch includes a latch-keeper receptacle and a latching bolt disposed in the latch-keeper receptacle. The latching bolt is slideable between a latched and an unlatched position. The frame has a latch keeper assembly attached to an edge thereof. The latch keeper assembly is positioned to enter the latch-keeper receptacle when the door latches to the frame. The latch keeper assembly includes a protruding member having a tapered edge and a latching-bolt aperture to receive the latching bolt when in the latched position. The tapered edge establishes a close fit by the latch keeper assembly within the latch receptacle to limit relative motion therebetween during a seismic event.