Abstract: A process for producing a metallic gasket, which comprises making a thin metallic sheet into a solid figure having an inclined surface, thereby providing a bead region extended upwardly and downwardly over the inclined surface, and forming a sealing part made of a hardened rubber layer on the surface of bead region, characterized by forming a sealing part extended from the apex of the bead region down to an upperward position on the inclined surface, and another sealing part extended from a downward position on the inclined surface down to the flat bottom part, and joining the sealing parts by the rubber material in a solution state extended along the inclined surface from both of the sealing parts, before drying and hardening of the material for making sealing parts. Application of the rubber material in a solution state is carried out preferably by a screen printing process.

Abstract: The present invention provides a sealing bead in which linearly acting surface pressures are generated at its portions which does not directly contribute to generating the linearly acting surface pressures in the conventional sealing bead, thereby enhancing the efficiency for generating linearly acting surface pressures with respect to a displacement amount of height of the sealing bead. A peripheral portion of a sealing bead between a bent position and an opening edge is bent up or down so as to form a pre-determined degree of an angle with respect to a corresponding flange surface. With this structure, linearly acting surface pressures are generated at the opening edge that, in the conventional bead, does not directly contribute to generating linearly acting surface pressures.

Abstract: A metal gasket including a thin metal plate (1) provided with beads (3) and step members (4) each of which includes a coating layer having a property of high load resistance. The step member (4) is attached to the bead along a convex ridge of the bead (3), thereby increasing a quantity of compression of the bead (3), to cause a great surface pressure and decreasing an amplitude of stress in the bead (3) to improve a property of fatigue resistance of the bead (3). Also, the step member (4) is attached to the bead within a concave surface of the bead, thereby restraining the quantity of compression of the bead (3) to improve the property of fatigue resistance of the bead (3) and assuring the surface pressure on the concave surface of the bead by the step member (4).

Abstract: A gasket providing superior sealing having a grommet inserted in its holes and a graphite sheet mounted in the narrow area between the two adjoining or adjacent holes is disclosed.

Abstract: The gasket has a grommet about its holes and the grommet has a slit in the narrow area between the adjoining or adjacent holes where superior sealing is required. The gasket may have, when necessary, a sheet of a heat resisting material in said area.