What is claimed is:
1. A portable telephone comprising:
a basic unit including essential components required for communication which have a microphone, an earphone, a display unit, a key console unit, an antenna, a wireless communication unit, a power source and a controller, and a case body for accommodating said essential components; and
an additional function unit mounting section is provided for said basic unit for mounting an additional function unit, which provides an additional function, on said case body.
2. A portable telephone according to claim 1, wherein at least one of a flip unit, a slide unit, an LCD bezel unit, a keypad bezel unit and a grip unit is mounted as said additional function unit.
3. A portable telephone according to claim 1, wherein said additional function unit mounting section includes at least one of a rail, an engagement section, which includes raised and recessed members, an attachment groove, and an engagement hole.
4. A portable telephone according to claim 1, wherein a single or multiple additional function units are selected for mounting on said basic unit.
5. A portable telephone according to claim 1, wherein said additional function units available for mounting on said basic unit are detachable.
6. A portable telephone according to claim 1, wherein a grip having raised and recessed surfaces is formed on the sides of said additional function units, excluding said grip unit.
7. A portable telephone according to claim 1, wherein the grip surfaces of said grip unit are extended so as to serve as covers for protecting the sides of said case.
8. A portable telephone according to claim 1, wherein a magnifying lens is provided for said LCD bezel unit and said keypad bezel unit, and contents displayed on these units are enlarged for reading.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method of forming a core within a metal casting, the method comprising the steps of:
providing a precipitation-hardenable alloy core rod having a length and opposite ends;
packing sand around at least one end of the core rod to form a sand core with core rod;
placing the sand core with core rod into a mold;
pouring molten metal into the mold and around the sand core with core rod; and
producing a metal casting having a core and a uniform sidewall thickness having a deviation in the thickness in a range of +\u22120.060 inches.
2. The method of claim 1, wherein the providing step includes the step of providing a core rod being made from a precipitation-hardenable alloy comprising about 40.0 to 75.0 wt. % Ni, about 0.0 to 25.0 wt. % Co, about 10.0 to 25.0 wt. % Cr, and about 0.0 to 20.0 wt. % Fe.
3. The method of claim 2, wherein the providing step includes the step of providing a rod core that does not stress relax during and after the pouring step.
4. The method of claim. 2, wherein the providing step includes the step of providing a rod core that remains straight during and after the pouring step.
5. The method of claim 2, wherein the providing step includes the step of providing a rod core that does not bend during and after the pouring step.
6. The method of claim 2, further comprising the step of solidifying the metal in the mold and around the sand core with core rod to form the casting.
7. The method of claim 6, wherein the providing step includes the step of providing a rod core that does not stress relax during the solidifying step.
8. The method of claim 6, wherein the providing step includes the step of providing a rod core that remains straight during the solidifying step.
9. The method of claim 6, wherein the providing step includes the step of providing a rod core that does not bend during the solidifying step.
10. The method of claim 2, wherein the producing step includes the step of machining the casting into a plunger tip for use in one of aluminum and magnesium die casting operations.
11. The method of claim 10, wherein the pouring step includes the step of.
12. The method of claim 11, wherein the machining step includes the step of machining the casting into a plunger tip having a cylindrical.
13. The method of claim 12, further comprising the step of internally threading the body of the plunger tip to enable the plunger tip to be connected to a rod.
14. The method of claim 1, wherein the providing step includes the step of providing a core rod being made from a Ni based precipitation-hardenable alloy.