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US 5,165,882 AGranted
Sealing mechanism for sealing an aperture on a closed vessel
AssigneeSanden Corporation
InventorsShigemi Shimizu, Yoshihiro Ochiai
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AssigneeSanden Corporation
InventorsShigemi Shimizu, Yoshihiro Ochiai
Estimating the term…
A sealing mechanism for sealing an aperture formed through a housing of a closed vessel is disclosed. The sealing mechanism includes a bolt having a threaded shaft portion and a flange portion. A seating portion is formed on the outer opening of the aperture and a rotation preventing portion is formed on the surface of the seating portion. A washer is disposed on the seating portion. The washer is made of a metal softer than the material of the housing. When the bolt is rotated the washer contacts the flange portion of the bolt. The axial force of the bolt causes the washer to engage the rotation preventing portion. The rotation preventing portion deforms the washer and prevents the washer from rotating. Therefore, the inner end surface of the washer does not rub against the surface of the seating portion. As a result, adequate sealing is maintained.
A vessel having a wall including an aperture formed therethrough and a sealing mechanism for sealing the aperture, said sealing mechanism comprising:
A compressor housing having a wall including an inner surface, an outer surface, an aperture formed therethrough and a sealing mechanism formed therein and about said aperture, said sealing mechanism comprising:
A compressor housing having a wall including an inner surface, an outer surface, an aperture formed therethrough and a sealing mechanism formed therein and about said aperture, said sealing mechanism comprising:
Dependencies are inferred from the claim text.