Hermetically sealed head disk assembly and method of sealing with soldering material
OwnerMichael Hatchett, Kirk Priceinventors
Life of this patent
Estimating the term…
Abstract
A sealed head disk assembly has a base casting for providing attachment points for the major components of the head disk assembly. The base casting has a hermetic seal encompassing an outer perimeter of the base casting and a semi-hermetic seal inside a perimeter of the hermetic seal, thus allowing the hermetic seal and the semi-hermetic seal to be juxtaposed to at least one complementary surface on a cover. The cover for enclosing the major components of the head disk assembly has at least one complementary surface.
Claims21
A sealed head disk assembly comprising:
- a base casting for providing attachment points for the major components of the head disk assembly, said base casting comprising a hermetic seal encompassing an outer perimeter of said base casting, a semi-hermetic seal inside a perimeter of said hermetic seal, thus allowing said hermetic seal and said semi-hermetic seal to be juxtaposed to at least one complementary surface on a cover;
- and
- said cover for enclosing said major components of said head disk assembly, said cover comprising at least one said complementary surface.
A cover for a head disk assembly for providing a hermetic seal and a semi-hermetic seal comprising:
- at least one complementary surface for said semi-hermetic seal and said hermetic seal.
A base casting for head disk assembly for providing a hermetic seal and a semi-hermetic seal, said base casting comprising:
- a hermetic seal encompassing the perimeter of said base casting and;
- a semi-hermetic seal inside a perimeter of said hermetic seal.
A method of producing a sealed head disk assembly comprising:
- assembling major components of the head disk assembly into a base casting that provides major component attachment points;
- wherein said base casting comprises a hermetic seal encompassing an outer perimeter of said base casting, a semi-hermetic seal inside a perimeter of said hermetic seal, thus allowing said hermetic seal and said semi-hermetic seal to be juxtaposed to at least one complementary surface on a cover;
- attaching said cover that encloses the major components of the head disk assembly;
- wherein said cover comprises at least one said complementary surface;
- introducing an atmosphere into said sealed disk assembly;
- performing testing of said sealed head disk assembly;
- removing said cover enabling repairs to said sealed head disk assembly when said testing fails;
- re-attaching said cover upon completion of said repairs;
- re-introducing said atmosphere into said sealed head disk assembly;
- and
- activating said hermetic seal.
Dependencies are inferred from the claim text.