Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
185 words
A gasket, comprising a base plate selected from the group consisting of carbon steel, tool steel and stainless steel being in the form of a hard sheet and having a shape corresponding to the shape of two surfaces between which a seal is to be established, said base plate having two opposite major surfaces at least one of which is provided with at least one corrugation thus being elastically deformable and completely surrounding an opening to be sealed; and at least one surface plate selected from the group consisting of carbon steel, tool steel and stainless steel in the form of a sheet having substantially the same hardness as said base plate and having a shape corresponding to that of said base plate, said surface plate being juxtaposed with said one surface of said base plate and said gasket being able to provide a seal between and to compensate for distortions of the surfaces to be sealed, due to the elastic deformation of said corrugation and to the substantial lack of ductility of said surface plate under pressure exerted by said surfaces upon the gasket.
Claim 2
Dependent Claim
185 words
A gasket, comprising a base plate selected from the group consisting of carbon steel, tool steel and stainless steel being in the form of a hard sheet and having a shape corresponding to the shape of two surfaces between which a seal is to be established, said base plate having two opposite major surfaces at least one of which is provided with at least one corrugation thus being elastically deformable and completely surrounding an opening to be sealed; and at least one surface plate selected from the group consisting of carbon steel, tool steel and stainless steel in the form of a sheet having substantially the same hardness as said base plate and having a shape corresponding to that of said base plate, said surface plate being juxtaposed with said one surface of said base plate and said gasket being able to provide a seal between and to compensate for distortions of the surfaces to be sealed, due to the elastic deformation of said corrugation and to the substantial lack of ductility of said surface plate under pressure exerted by said surfaces upon the gasket.
Claim 3
Dependent Claim
46 words
A gasket is defined in claim 1, further comprising an additional sheet metal surface plate similar to the first-mentioned surface plate and being juxtaposed with the other of said major surfaces of said base plate, so that the base plate is sandwiched between said surface plates.
Claim 4
Dependent Claim
33 words
A gasket is defined in claim 2, said surface plates each having a J-shaped cross-section and embracing respective opposite lateral edge portions of said base plate from opposite sides of the base plate.
Claim 5
Dependent Claim
41 words
A gasket as defined in claim 1, said surface plate having a J-shaped cross-section and embracing one lateral edge of said base plate so as to at least in part overlie the other of said major surfaces of the base plate.
Claim 6
Dependent Claim
51 words
A gasket as defined in claim 1, further comprising an additional sheet metal surface plate similar to the first-mentioned surface plate and being juxtaposed with the other of said major surfaces; and a pair of auxiliary sheet metal plates sandwiched between said base plate and respective ones of said surface plates.