Abstract: Notebook computer having a removable battery having a recess in one side, the side including an overhang over the recess to form an overhang recess. A pivoting latch has two arms, one of which extends into the battery recess and includes a lip extending into the overhang recess. A leaf spring biases the first arm into the battery recess. A second arm of the pivoting latch contacts a release actuator which pivots to counteract the leaf spring to allow the first arm to be removed from the battery recess. A spring at the rear of the computer biases the battery so that the lip is positively retained in the overhang recess so that simply depressing the release actuator does not release the battery. When the battery is pushed back to compress this spring, the lip can clear the overhang and depressing the release actuator results in the first arm clearing the battery recess so that the battery can be removed while the release actuator is depressed.

Abstract: An AC-powerable portable computer has an upper housing in which the central processing and power supply portions of the computer operating system are disposed, and a base housing in which the hard and floppy disc drive portions of the computer operating system are disposed. The bottom side of the upper housing is connected to the top side of the base housing in a manner permitting the upper housing to be tilted forwardly and rearwardly relative to the base housing to permit a user of the computer to adjust the viewing angle of a display screen structure fixedly secured to a front side of the upper housing for pivotal movement therewith. A latch structure releasably locks the upper housing, and the screen structure fixedly secured thereto, in an upright storage and transport orientation in which the keyboard portion of the computer is removably latched over the front side of the screen structure.

Abstract: A support apparatus for a portable personal computer expansion unit provides a plurality of interlocking ribs on the mating surfaces of the portable personal computer and expansion unit, and a latch mechanism to releasably lock the mating surface of the computer expansion unit to the mating surface of the portable personal computer.