Browse Prior Art Database

Personal Computer Security Lock

IP.com Disclosure Number: IPCOM000043929D
Original Publication Date: 1984-Oct-01
Included in the Prior Art Database: 2005-Feb-05
Document File: 2 page(s) / 66K

Publishing Venue

IBM

Related People

Bealkowski, R: AUTHOR [+5]

Abstract

A technique is described whereby a mechanical locking mechanism is attached to the rear of a personal computer to prevent unauthorized access. The security lock mechanism provides three functions; a) to prevent turning on power, b) to prevent removal of cover screws, and c) to prevent removal of the monochrome display. Lock frame 10, as shown in Fig. 1, is mounted at the rear of the computer, secured by four screws 11, two cover and two power supply screws, bolted from the inside. Lock cover 12, as shown in Fig. 2, is mounted over lock frame 10, held by lock cover holding screws 13. Key lock 14 is mounted on lock frame 10 so that when lock plate 15 is inserted into slot 16, lock tab 17 is turned by a key to engage into slot 18, preventing removal of the lock plate 15.

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Personal Computer Security Lock

A technique is described whereby a mechanical locking mechanism is attached to the rear of a personal computer to prevent unauthorized access. The security lock mechanism provides three functions; a) to prevent turning on power, b) to prevent removal of cover screws, and c) to prevent removal of the monochrome display. Lock frame 10, as shown in Fig. 1, is mounted at the rear of the computer, secured by four screws 11, two cover and two power supply screws, bolted from the inside. Lock cover 12, as shown in Fig. 2, is mounted over lock frame 10, held by lock cover holding screws 13. Key lock 14 is mounted on lock frame 10 so that when lock plate 15 is inserted into slot 16, lock tab 17 is turned by a key to engage into slot 18, preventing removal of the lock plate 15. Lock plate 15 has a step 19 welded onto the inside surface so that when lock plate 15 is in the locked position, step 19 is positioned on the top of the computer electrical switch 20 to prevent the switch from being turned on. Lock plate 15, when removed, is reversed for ease of storage. The lock cover holding screws 13 are covered when lock plate 15 is in place, to prevent removal of lock cover 12. Lock frame 10 has arms 22 which position around the display's power connector plug 23, to prevent removal of the display. To prevent removal of the computer cover 21, lock cover 12, as shown in Fig. 3, has two raised areas 24, positioned so as to cover the screws which hol...