Protective sheath for portable electronic device and method for making same
First Claim
1. A protective sheath for receiving a portable electronic device therein and protecting the portable electronic device from being scratched, comprising:
- an upper cover, comprising a window made of plastic material and two side wings made of elastomer integrally formed at two opposite edges of the window, respectively, wherein the window includes a transparent plastic base and at least one transparent coating comprising silicon oxide on the base; and
a lower cover engaging with the upper cover.
1 Assignment
0 Petitions
Accused Products
Abstract
A protective sheath (1) for a personal digital assistant (3) includes a lower cover (13) and an upper cover (11). The upper cover includes a window (111) made of transparent plastic material, and two side wings (112) made of elastomer. The window includes a plastic base (114), and a coating including silicon oxide (113) on a surface of the base. Adherence between the base and the coating is very firm. The window is highly transparent, and has a very smooth and even surface, and has excellent wear-resistance. A method for forming the protective sheath includes the steps of: (1) injection molding the plastic base; (2) pre-treating the base; and (3) putting the base into a vacuum chamber for plasma chemical vapor deposition (PCVD) treatment, whereby the coating including silicon oxide is formed on the surface of the base.
-
Citations
12 Claims
-
1. A protective sheath for receiving a portable electronic device therein and protecting the portable electronic device from being scratched, comprising:
-
an upper cover, comprising a window made of plastic material and two side wings made of elastomer integrally formed at two opposite edges of the window, respectively, wherein the window includes a transparent plastic base and at least one transparent coating comprising silicon oxide on the base; and
a lower cover engaging with the upper cover. - View Dependent Claims (2, 3)
-
-
4. A method for making a protective sheath for receiving a portable electronic device therein and protecting the portable electronic device from being scratched, comprising the steps of:
-
(1) injection molding a plastic base;
(2) pre-treating the base, comprising cleaning and pre-heating the base; and
(3) putting the pre-treated base in a vacuum chamber for plasma chemical vapor deposition treatment;
whereby a coating comprising silicon oxide is formed on a surface of the base. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11)
-
-
12. An electronic device assembly comprising:
a protective sheath including;
a lower cover;
an upper cover pivotally engaged with the lower cover and comprising a window with a transparent plastic base;
at least one transparent coating comprising silicon oxide applied on the base;
two side wings made of elastomer integrally formed at two opposite sides of the window, respectively; and
an electronic device removeably received within a spaced defined between the upper cover and the lower cover.
Specification