Patents by Inventor Donald P. Roehling

Donald P. Roehling 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: 6621690
    Abstract: A disk drive enclosure system includes an enclosure, a cage configured to mount a plurality of disk drives, and foam between the cage and the enclosure. The foam is characterized by a compliance, and has a plurality of voids selectively formed therein. The voids can be selectively formed to thereby increase the compliance of the foam. The voids can be formed through the entire thickness of the foam, or through only a portion of the thickness. The voids can be configured to form cooling air passages for cooling air circulated in the disk drive enclosure system. The foam can be a foam system having foam components, and the voids can be formed only in selected ones of the foam components. The enclosure system can include a plurality of disk drives mounted to the cage, and the voids can be located near the disk drives.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: September 16, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Thomas W Ives, Donald P Roehling
  • Patent number: 6567266
    Abstract: A disk drive array can be protected from mechanical disturbances by foam positioned between a disk drive/mounting cage assembly and an enclosure system. In some of the more preferred embodiments of this invention the individual disk drives will be rigidly mounted to their mounting cage.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: May 20, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Thomas W Ives, Donald P Roehling
  • Publication number: 20020172004
    Abstract: A disk drive array can be protected from mechanical disturbances by foam positioned between a disk drive/mounting cage assembly and an enclosure system. In some of the more preferred embodiments of this invention the individual disk drives will be rigidly mounted to their mounting cage.
    Type: Application
    Filed: May 16, 2001
    Publication date: November 21, 2002
    Inventors: Thomas W. Ives, Donald P. Roehling
  • Publication number: 20020172006
    Abstract: A disk drive enclosure system includes an enclosure, a cage configured to mount a plurality of disk drives, and foam between the cage and the enclosure. The foam is characterized by a compliance, and has a plurality of voids selectively formed therein. The voids can be selectively formed to thereby increase the compliance of the foam. The voids can be formed through the entire thickness of the foam, or through only a portion of the thickness. The voids can be configured to form cooling air passages for cooling air circulated in the disk drive enclosure system. The foam can be a foam system having foam components, and the voids can be formed only in selected ones of the foam components. The enclosure system can include a plurality of disk drives mounted to the cage, and the voids can be located near the disk drives.
    Type: Application
    Filed: September 5, 2001
    Publication date: November 21, 2002
    Inventors: Thomas W. Ives, Donald P. Roehling
  • Patent number: 6198627
    Abstract: A back cover assembly is provided for use in a device including a housing having a plurality of walls forming an enclosure. A blower mechanism is adapted to cause exhaust air to flow from an interior of the housing to an exterior of the housing. The back cover assembly is located in proximity with the blower mechanism, and includes an acoustical chamber adapted to permit exhaust air from the interior of the housing to pass therethrough. The acoustical chamber is adapted and constructed to reflect acoustical energy back into the blower mechanism. In an embodiment, at least one interior surface of the acoustical chamber is lined with a sound absorbing material such as polyurethane polyester foam. The acoustical chamber can include a front wall with at least one inlet open to blower mechanism, and a rear wall with at least one outlet. The outlet is in fluid communication with the at least one inlet on the front wall, and is open to the exterior of the housing.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: March 6, 2001
    Assignee: Hewlett-Packard Company
    Inventors: Donald P. Roehling, Michael J. Anderson
  • Patent number: 5422768
    Abstract: To minimize unwanted motion in a hard disk assembly in a hard disk drive, an elastomeric support is employed to mount a hard disk pack for rotation by a motor rotor of a disk spindle motor. The hard disk pack includes a hard disk support ring which has opposite annular axial faces upon which the hard disks are securely mounted and axially spaced thereby. An elastomeric connection between the hard disk support ring and a cylindrical body of the motor rotor of the disk spindle motor, provides a soft, or compliant, support for the hard disk pack.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: June 6, 1995
    Assignee: Hewlett-Packard Company
    Inventors: Donald P. Roehling, Gary M. Peter
  • Patent number: 5403202
    Abstract: A low insertion force, low profile electrical connector employs the folded end of a planar flexible circuit as the electrical connector plug which is plugged into an electrical connector receptacle having a printed circuit board and printed circuit traces as a part of the electrical connector receptacle. Contact pads connected with flexible circuit traces on the electrical connector plug engage contacts connected to the printed circuit traces in the electrical connector receptacle.
    Type: Grant
    Filed: October 7, 1993
    Date of Patent: April 4, 1995
    Assignee: Hewlett-Packard Company
    Inventor: Donald P. Roehling