# US 5,706,168 A · Impact-resistant notebook computer having hard drive mounted on shock-isolating mounting bridge and impact attenuating covering > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,706,168 A - Document ID: US5706168A - Status: Granted - Kind: A - Application number: 08/499,488 - Filed: 1995-07-07 - Granted: 1998-01-06 - Earliest claimed: 1995-07-07 - Assignees: Itronix Corporation - Inventors: William F. Erler; Jonathan L. LaMarche; David H. Stockham; Theodore C. Vollmer - Web page: https://patentgrep.com/patent/US5706168A ## CPC - G06F 1/1616: {with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position} - G06F 1/1656: {Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories (mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203)} - G06F 1/1662: {Details related to the integrated keyboard} - G06F 1/169: {the I/O peripheral being an integrated pointing device, e.g. trackball in the palm rest area, mini-joystick integrated between keyboard keys, touch pads or touch stripes (G06F1/1643 takes precedence; constructional details of pointing devices G06F3/033)} - H01H 13/702: with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches - H01H 2223/002: sealed - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00) ## Abstract An improved portable personal computer preferably configured to facilitate outdoor field-use has an impact attenuating case, a sealed keyboard, and a sealed mouse which facilitate use of the computer in harsh environments. The case has a impact attenuating covering in which is housed a hard drive on a shock-isolated mount and a display further mounted in die case in a resilient shock-isolated manner. The case, hard drive mount, and display mount cooperate to attenuate shock-induced damage resulting from impacts and sudden accelerations of the computer caused during rugged use. Furthermore, the sealed keyboard and mouse assemblies prevent any damage which might result from liquids migrating within the case and into the computer components. ## Claims ### Claim 1 An impact resistant portable personal computer having a housing including a top case and a bottom case, a motherboard having a hard drive assembly and a central processing unit in combination with memory modules, and a keyboard assembly including a keyboard supported along a top face of the bottom case, wherein a screen is supported within the top case and the top case is rotatably carried by the bottom case, the computer comprising: a covering formed from an impact attenuating resilient elastomeric material configured to at least partially overlay the housing of the computer such that the inner face of the covering substantially conforms to the outer face of the case; a hard drive; a shock-isolating mounting bridge configured to support the hard drive within the computer bottom case having at least one mounting aperture configured to receive an isolation grommet having a through-hole for receiving a fastener to mount the bridge via the fastener to the inside of the case in resiliently retained relation so as to secure the hard drive within the case in a compliant and impact attenuating manner; wherein the resulting impact attenuating housing and bridge mounted hard drive facilitate use of the portable computer under harsh conditions. ### Claim 2 (depends on 30) The computer of claim 30 wherein the hard drive is a 1.8 inch diameter hard drive having a mass sized in relation to the bending stiffness of the bridge so as to impart a tuned bending of the bridge in response to deceleration forces of the hard drive resulting when the housing is subjected to impact-induced shock loading. ### Claim 3 (depends on 1) The computer of claim 1 further comprising at least one hinge having a first face configured for mounting to the top case and a second face rotatably carried by the first face and configured for mounting to the bottom case, the bottom case further comprising a mounting well provided within a surface of the bottom case configured to receive the hinge second face in pocketed relation therein so as to provide enforced resistance to any forces produced therebetween as a result of impact-induced shock loading to the housing. ### Claim 4 (depends on 1) The computer of claim 1 wherein a plurality of shells comprising the computer housing are substantially formed from magnesium. ### Claim 5 (depends on 1) The computer of claim 1 wherein the top case comprises a back shell and a front shell, the front shell having a screen bezel therein in which the front face of the screen in assembly can be viewed by a user, and the bottom case comprises a top shell and a bottom shell, the top shell providing the keyboard top face upon which the keyboard is retained. ### Claim 6 (depends on 5) The computer of claim 5 wherein at least one circumferentially extending resilient seal is provided along an outer peripheral portion of the screen such that the screen is sandwich-mounted in resilient isolated relation with the front shell and back shell so as to frictionally retain the screen therebetween in an impact induced shock attenuating manner. ### Claim 7 (depends on 1) The computer of claim 1 further comprising a mobile telephone having an antenna and a modem configured to enable the computer to remotely transmit and receiver information over the mobile telephone. ### Claim 8 (depends on 7) The computer of claim 7 further comprising a speaker and a microphone configured in the bottom face of the bottom case, wherein the covering partially covers the bottom face so as to provide a gap between the speaker and microphone in relation to a surface on which the computer is supported in use which enables audible sound transmission therebetween. ### Claim 9 (depends on 1) The computer of claim 1 further comprising a tray provided in the bottom case configured to receive a battery and including a plurality of elongate blade electrical contacts constructed and arranged to electrically engage with corresponding battery electrical contacts during assembly. ### Claim 10 An impact resistant portable personal computer having a housing including a top case and a bottom case, a motherboard having a hard drive assembly and a central processing unit in combination with memory modules, and a keyboard assembly including a keyboard supported along a top face of the bottom case, wherein a screen is supported within the top case and the top case is rotatably carried by the bottom case, the computer comprising: a covering formed from an impact attenuating resilient elastomeric material configured to at least partially overlay the housing of the computer such that the inner face of the covering substantially conforms to the outer face of the case; a hard drive; a mounting bridge configured to support the hard drive within the computer bottom case having at least one mounting aperture configured to receive an isolation grommet having a through-hole for receiving a fastener to mount the bridge via the fastener to the inside of the case in resiliently retained relation so as to secure the hard drive within the case in a compliant and impact attenuating manner; a mobile telephone having an antenna and a modem configured to enable the computer to remotely transmit and receiver information over the mobile telephone; a speaker configured in the bottom face of the bottom case, wherein the covering partially covers the bottom face so as to provide a gap between the speaker in relation to a surface on which the computer is supported in use which enables audible sound transmission therebetween; wherein the resulting impact attenuating housing and bridge mounted hard drive facilitate use of the portable computer under harsh conditions. ### Claim 11 (depends on 10) The computer of claim 10 further comprising a microphone configured in the bottom face of the bottom case, wherein the covering partially covers the bottom face so as to provide a gap between the microphone in relation to a surface on which the computer is supported in use which enables audible sound transmission therebetween. ### Claim 12 (depends on 11) The computer of claim 11 wherein the mobile telephone is carried in the metal bottom case in spaced-apart relation with the antenna. ### Claim 13 (depends on 10) The computer of claim 10 wherein the bottom case is formed substantially from metal material and the central processing unit is housed within the metal bottom case, and the computer further comprising an antenna carried by the top case in a configuration separated from the central processing unit by the metal bottom case. ### Claim 14 (depends on 10) The computer of claim 10 wherein the housing comprises a magnesium housing.