Abstract: A tray for inserting a memory card into a portable computer is described. The tray facilitates complete insertion of the memory card into the computer and optimum electrical interconnection between the memory card and the computer interior. The tray is dimensioned such that it creates a tight seal with the computer housing and provides a coplanar fit with the exterior of the computer housing. No portions of the tray or memory card protrude beyond the computer housing, thereby improving the durability, maneuverability, and compactness of the portable computer. A stop mechanism restrains the tray within the housing when the tray is opened. A memory card can easily be placed thereinto or removed therefrom when the tray is opened and yet the tray does not become separated from the computer and lost.

Abstract: A pocket-type computer encompassed by a two-part hinged casing has a hinge structure in which a lower housing containing a computer keyboard has a pair of spaced hinge elements pin-connected to an elongated hinge element of an upper housing containing a computer display panel. An elongated small leaf spring is captured within a slot on an exterior surface of a rear wall of the lower housing so that the bowed medial portion of the spring rides on a curved cam surface at the rear bottom edge of the upper housing during opening and closing of the respective housings forming the casing.

Abstract: A pocket-type computer encompassed by a two-part casing has the entire latch mechanism contained in sidewalls of upper and lower hinged casings. The sidewalls have a thickness of only about two millimeters. A latch plate is integrally molded in a sidewall interior recess or formed as a molded part and fixedly adhered in the recess. One end of an elongated latch is fixed in an interior recess in the upper casing sidewall and depends therefrom so that a centilevered end having locking tooth slides on an inclined surface on the latch plate as the casings are closed until the latch tooth springs into a recess and keeper in the latch plate. An integral push button extends outwardly from the latch at a medial position into a matching aperture in the upper casing sidewall. The push button is accessed from the casing exterior and when pushed inwardly, the latch is pivoted inwardly releasing the latch tooth from the latch keeper to allow opening of the two casings.