US 2007/0164108 A1Published application

Calculator

AssigneeTruly Electronics Manufacturing Limited

InventorsKan Tam, Shi Zou, Yuen Lai, Ka Au

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Abstract

A foldable calculator comprising: (i) a main body having an upper cover with a rectangular recess on the outer surface of the upper cover, a lower cover; and a hinge joining the upper cover and the lower cover together, (ii) a display screen, (iii) a keyboard having a first key set (frequently used keys) with relatively large key pressing areas and a second key set (infrequently used keys) with relatively smaller key pressing areas, and (iv) a retractable support member, wherein the upper cover is openable at an angle from the lower cover suitable for a user to view the display screen when the retractable support member is open, and the retractable support member is retractable into the rectangular recess on the outer surface of the upper cover when the retractable support member is not in use.

Claims14

Dependent claims

A foldable calculator, comprising:

(i) a main body having
(a) an upper cover comprising a first joining edge, an opposite second edge and a rectangular recess formed on the outer surface of the upper cover;
(b) a lower cover comprising a first joining edge, an opposite second edge;
and
(c) a hinge joining the first joining edge of the upper cover and the first joining edge of the lower cover together;
(ii) a display screen formed on the inner surface of the upper cover;
(iii) a keyboard having a first key set and a second key set, wherein the first key set is formed on the inner surface of the lower cover and the second key set is formed on the inner surface of the upper cover;
and
(iv) a retractable support member having
(a) a first side where a shaft member is formed for mounting the retractable support member to the rectangular recess of the upper cover;
and
(b) a second side opposite to the first side having two foot pads, wherein the two foot pads are located on the same horizontal plane with the basal plane of the lower cover,
wherein the upper cover is openable at an angle from the lower cover suitable for a user to view the display screen when the retractable support member is open, and the retractable support member is retractable into the rectangular recess on the outer surface of the upper cover when the retractable support member is not in use.

10 more elements

Dependencies are inferred from the claim text.