Casing structure of portable electronic appliance

Details Casing structure of portable electronic appliance Casing structure of portable electronic appliance

1986-06-09

1987-10-27

Fuller, Benjamin R.

Registers

Miscellaneous

Numeral wheels

200 5A, 206305, 220339, 364708, G06C 502

Patent

active

047031603

ABSTRACT:
A unital casing structure of a portable electronic appliance such as a handheld or desktop calculator, comprising at least two panel sections having a straight boundary line therebetween and integrally coupled together across the boundary line whereby the panel sections are foldable with respect to each other about an axis extending along the boundary line between the panel sections so that the two panel sections are coupled together in a face-to-face relationship. The casing structure may further comprise an intermediate panel section bridging the two panel sections, the intermediate panel section being angularly movable with respect to the two panel sections about two axes parallel with and spaced apart across the boundary line between the panel section and being foldable with respect to each of the two panel sections about each of the two axes.

REFERENCES:
patent: 4028509 (1977-06-01), Zurchen
patent: 4044980 (1977-08-01), Cummins
patent: 4066851 (1978-01-01), White et al.
patent: 4068924 (1978-01-01), Kotani
patent: 4075702 (1978-02-01), Davies
patent: 4096577 (1978-06-01), Ferber et al.
patent: 4259568 (1981-03-01), Dynesen
patent: 4314117 (1982-02-01), Ditzig
patent: 4336529 (1982-06-01), Buan
patent: 4517660 (1985-05-01), Fushimoto et al.

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