1. A door latch actuation assembly comprising:
a latch actuation member slidably coupled to a door, said latch actuation member including first and second portions, said first portion disposed on an interior of said door and including an internal actuation portion, said second portion including an engagement portion, said engagement portion configured to actuate an external actuation member, said external actuation member having a first portion coupled to an exterior of said door.
2. The door latch actuation assembly of claim 1, wherein said engagement portion is disposed on said exterior of said door proximate said first portion of said external actuation member, said engagement portion biasingly engaged with said external actuation member when in an engaged position.
3. The door latch actuation assembly of claim 2, wherein said engagement portion is biasingly engaged with an arm extending from said first portion of said external actuation member when in said engaged position, said first portion of said external actuation member being rotatably coupled to said door.
4. The door latch actuation assembly of claim 1, wherein said internal actuation portion generally extends from said interior of said door, said internal actuation portion slidably engaged with an aperture in said door.
5. The door latch actuation assembly of claim 1, wherein said latch actuation member includes a rigid body member disposed between and fixedly coupled to said internal actuation portion and said engagement portion.
6. The door latch actuation assembly of claim 1, further comprising a biasing member biasing said latch actuation member to an unengaged position.
7. The door latch actuation assembly of claim 6, wherein said biasing member is a coil spring.
8. A door assembly for a motorhometravel trailer comprising:
a door having interior and exterior portions;
an exterior actuation assembly including an external actuation member having a first portion coupled to said exterior portion; and
a door latch actuation assembly including a latch actuation member slidably coupled to said door, said latch actuation member including first and second portions, said first portion disposed on said interior portion of said door and including an internal actuation portion, said second portion including an engagement portion, said engagement portion configured to actuate said external actuation member.
9. The door assembly of claim 8, wherein said door latch actuation assembly is coupled to a housing slidably coupled to said door.
10. The door assembly of claim 8, wherein said engagement portion is disposed on said exterior portion of said door proximate said first portion of said external actuation member, said engagement portion biasingly engaged with said external actuation member when in an engaged position.
11. The door assembly of claim 10, wherein said engagement portion is biasingly engaged with an arm extending from said first portion of said external actuation member when in said engaged position, said first portion of said external actuation member being rotatably coupled to said door.
12. The door assembly of claim 8, wherein said internal actuation portion generally extends from said interior portion of said door, said internal actuation portion slidably engaged with an aperture in said door.
13. The door assembly of claim 8, wherein said latch actuation member includes a rigid body member disposed between and fixedly coupled to said internal actuation portion and said engagement portion.
14. The door assembly of claim 8, further comprising a biasing member biasing said latch actuation member to an unengaged position.
15. The door assembly of claim 14, wherein said biasing member is a coil spring.
16. A motorhometravel trailer comprising:
a body including an exterior and an interior with an opening therethrough; and
a door coupled to said body and covering said opening, said door having interior and exterior portions, said door including an exterior actuation assembly and a door latch actuation assembly, said exterior actuation assembly including an external actuation member having a first portion coupled to an exterior portion of said door, said door latch actuation assembly including a latch actuation member slidably coupled to said door, said latch actuation member including first and second portions, said first portion disposed on an interior portion of said door and including an internal actuation portion, said second portion including an engagement portion, said engagement portion configured to actuate said external actuation member.
17. The motorhometravel trailer of claim 16, wherein said door includes an additional opening therethrough and a housing selectively covering said additional opening, said housing slidably coupled to said door.
18. The motorhometravel trailer of claim 17, wherein said latch actuation member is coupled to said housing.
19. The motorhometravel trailer of claim 18, wherein said housing is configured to remain slidably engaged with said door when said latch actuation member is coupled to said housing.
20. The motorhometravel trailer of claim 16, wherein said engagement portion of said latch actuation member is disposed on said exterior of said door proximate said first portion of said external actuation member, said engagement portion biasingly engaged with said external actuation member when in an engaged position.
21. The motorhometravel trailer of claim 16, wherein said internal actuation portion of said latch actuation member generally extends from said interior of said door, said internal actuation portion slidably engaged with an aperture in said door.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A method of deoxidation casting,
comprising the steps of:
reacting a deoxidizing compound, which is made by reacting a metallic gas on a reactive gas, on a molten metal; and
deoxidizing an oxide film on a surface of the molten metal.
2. The method according to claim 1,
wherein said deoxidizing compound is made by respectively introducing said metallic gas and said reactive gas to a cavity of a casting die and reacting said both gasses, and
casting is executed by pouring said molten metal into the cavity.
3. The method according to claim 2,
wherein the said metallic gas and said reactive gas are respectively introduced into the cavity 12a via introducing holes, which are formed in the casting die and communicated to the cavity.
4. The method according to claim 2,
wherein said deoxidizing compound is precipitated on an inner face of the cavity of the casting die.
5. The method according to claim 2,
wherein an inert gas is used, as a carrier gas, for introducing said metallic gas into the cavity of the casting die.
6. The method according to claim 2,
wherein said gas is introduced into the cavity of the casting die after a non-oxygen atmosphere is produced in the cavity.
7. The method according to claim 6,
wherein the non-oxygen atmosphere is produced by decompressing the cavity of the casting die.
8. The method according to claim 6,
wherein the non-oxygen atmosphere is produced by introducing an inert gas into the cavity of the die and purging air therefrom.
9. The method according to claim 2,
wherein the cavity is pressurized by a gas, which reacts on said deoxidizing compound in the cavity, and
the molten metal is poured into the pressurized cavity.
10. The method according to claim 1,
wherein said metallic gas and said reactive gas are reacted outside of the casting die so as to make said deoxidizing compound, and
said deoxidizing compound is introduced into the cavity of the casting die, then the molten metal is poured into the cavity.
11. The method according to claim 10,
wherein an inner gas introduces said deoxidizing compound into the cavity of the casting die as a carrier gas.
12. The method according to claim 10,
wherein a non-oxygen atmosphere is produced in the cavity, then said deoxidizing compound is introduced into the cavity.
13. The method according to claim 12,
wherein the non-oxygen atmosphere is produced by decompressing the cavity of the casting die.
14. The method according to claim 12,
wherein the non-oxygen atmosphere is produced by introducing an inert gas into the cavity and purging air therefrom.
15. The method according to claim 10,
wherein the cavity is pressurized by a gas, which reacts on said deoxidizing compound in the cavity, and
the molten metal is poured into the pressurized cavity.
16. The method according to claim 1,
wherein said deoxidizing compound reacts on the molten metal so as to deoxidize the oxide film on the surface of the molten metal when the molten metal is poured into the cavity.
17. A method of aluminium casting,
comprising the steps of:
reacting a magnesium nitride compound, which is made by reacting a magnesium gas on a nitrogen gas, on a molten aluminium; and
deoxidizing an oxide film on a surface of the molten aluminium by said magnesium nitride compound.
18. The method according to claim 17,
wherein said magnesium nitride compound is made by respectively introducing said magnesium gas and said nitrogen gas to a cavity of a casting die and reacting said both gasses, and
casting is executed by pouring said molten aluminium into the cavity.
19. The method according to claim 18,
wherein an argon gas is used, as a carrier gas, for introducing said magnesium gas into the cavity of the casting die.
20. The method according to claim 17,
wherein said magnesium gas and said nitrogen gas are reacted outside of the casting die so as to make said magnesium nitride compound, and
said magnesium nitride compound is introduced into the cavity of the casting die, then the molten aluminium is poured into the cavity.
21. The method according to claim 20,
wherein an argon gas is used, as a carrier gas, for introducing said magnesium gas into the cavity of the casting die.
22. A deoxidation casting machine, in which a magnesium nitride compound, which is made by reacting a magnesium gas on a nitrogen gas, is reacted on a molten aluminium and an oxide film on a surface of the molten aluminium is deoxidized by the magnesium nitride compound,
comprising:
a casting die having a cavity, into which a molten alminium is poured so as to cast the aluminium into a prescribed shape;
means for introducing the nitrogen gas into the cavity;
a furnace for generating the magnesium gas by heating and subliming a magnesium; and
means for introducing the magnesium gas from said furnace to the cavity of said casting die together with a carrier gas so as to make the magnesium nitride compound by reacting the magnesium gas on the nitrogen gas in the cavity.
23. A deoxidation casting machine, in which a magnesium nitride compound, which is made by reacting a magnesium gas on a nitrogen gas, is reacted on a molten aluminium and an oxide film on a surface of the molten aluminium is deoxidized by the magnesium nitride compound,
comprising:
a casting die having a cavity, into which a molten alminium is poured so as to cast the aluminium into a prescribed shape;
a reaction chamber being separated from said casting die;
means for introducing the nitrogen gas and magnesium into said reaction chamber; and
means for introducing the magnesium nitride compound, which is made in said reaction chamber by reacting the magnesium gas, which is generated by heating and subliming the magnesium, on the nitrogen gas, into the cavity together with a carrier gas.