Compaq Computer Corporation, Inc.

Compa Computer Corporation

Lowell M Good

Paily T Varghese

Robert J Hastings

David M Paquin

Joseph A Villanueva

David Deis

Barry S McAuliffe

A system for cooling a heat-producing component in a computer system includes a conduit or plenum and a fan assembly. The fan assembly may be supported by the conduit. An air stream directing and acoustic shielding member is disposed in the conduit to prevent or reduce transmission of acoustic noise during operation of the fan assembly to a region outside the computer console. The shield member may be made of an open-cell foam or other sound deadening or reflecting material. A secondary conduit is provided for recirculating a portion of the internal air within the computer chassis. The internal air stream may be joined and mixed with the air stream from outside the chassis to provide both fresh air and recirculation cooling.

Method and apparatus for cooling and acoustic noise reduction in a

A page wide ink jet printhead employed in a printer for printing characters on a print medium. The print medium progresses in a path through the printer during printing. The page wide ink Jet printhead includes print nozzles selectively aligned across the width of the print medium allowing the printhead to remaining stationary; a means for selectively ejecting ink through particular nozzles, which means is formed of a piezoelectric material which has microgrooves therein; ink residing in the microgrooves for ejection therefrom; sidewalls of the microgrooves which act as actuators to cause ink to be ejected from the microgrooves in response to an electrical pulse supplied thereto; and electrical circuitry to appropriately direct the electrical pulse to create an electric field across particular microgrooves to obtain a desired print character formed from ink droplets ejected from the microgrooves.

Method of manufacturing a page wide ink jet printhead

A series of hard disk drives are secured atop molded plastic support trays slidably and removably received in opposing guide channel member pairs snap-fitted into opposite side walls of a sheet metal cage structure. Sheet metal electromagnetic interference and electrostatic discharge-suppressing housings enclose each hard disk drive, provide for ventilation of the hard disk drive and any associated electronic components through perforated portions thereof, and prevent transmission of electromagnetic interference through unperforated portions thereof. Each electromagnetic interference and electrostatic discharge-suppressing housing has grounding spring members mounted on a rear portion thereof, and resilient support members between the housing and the grounding spring members.

Apparatus for electromagnetic interference and electrostatic discharge

In a rack-mounted computer system a server unit drawer structure is mounted between spaced pairs of front and rear corner support channel portions of the server cabinet using a pair of specially designed slide support brackets, each positioned on a different side of the drawer structure and extending completely between its associated pair of front and rear corner support channels. Front ends of the brackets have vertically spaced alignment tabs that are complementarily received in openings in side flange portions of the front corner channels and serve to precisely align the front bracket ends, and thus the front end wall of the drawer structure, with the cabinet framework in both horizontal directions. The front and rear ends of the brackets are secured to their associated support channels with threaded fasteners. The drawer is slidably mounted on the installed brackets using a conventional telescoping slide structure having a front end portions secured to opposite side walls of the drawer, and rear end portions secured to the brackets. The attachment of the rear slide structure end portions to their associated support brackets is substantially facilitated by horizontally series of nut members captively retained on the brackets. Threaded fasteners are extended through spaced series of openings in the rear slide structure end portions and threaded into the captively retained nut members on the slide support brackets.

Server drawer slide mount apparatus for a rack-mounted computer system

A page wide ink jet printhead employed in a printer for printing characters on a print medium. The print medium progresses in a path through the printer during printing. The page wide ink jet printhead includes print nozzles selectively aligned across the width of the print medium allowing the printhead to remaining stationary; a means for selectively ejecting ink through particular nozzles, which means is formed of a piezoelectric material which has microgrooves therein; ink residing in the microgrooves for ejection therefrom; sidewalls of the microgrooves which act as actuators to cause ink to be ejected from the microgrooves in response to an electrical pulse supplied thereto; and electrical circuitry to appropriately direct the electrical pulse to create an electric field across particular microgrooves to obtain a desired print character formed from ink droplets ejected from the microgrooves.

Growing community of inventors

Cypress, TX, United States of America

Lowell M Good