Abstract: A gasket includes a first face separated a predetermined distance from a second face, having a common though-hole. A metal frame is disposed between the first and the second faces, the metal frame supporting a first feature extending outwardly from opposing planar sides of the frame towards the first and the second faces, as well as supporting a second feature also extending outwardly from opposing planar sides of the frame towards the first and the second faces. The first feature is compressible when pressure is applied to the first and the second faces, and the second feature is incompressible when the pressure is applied to the first and the second faces. The first and the second features are continuous and concentrically aligned with one another about the through-hole, and the first feature is inclined towards the through-hole.

Abstract: A gasket includes a first face separated a predetermined distance from a second face, having a common though-hole. A metal frame is disposed between the first and the second faces, the metal frame supporting a first feature extending outwardly from opposing planar sides of the frame towards the first and the second faces, as well as supporting a second feature also extending outwardly from opposing planar sides of the frame towards the first and the second faces. The first feature is compressible when pressure is applied to the first and the second faces, and the second feature is incompressible when the pressure is applied to the first and the second faces. The first and the second features are continuous and concentrically aligned with one another about the through-hole, and the first feature is inclined towards the through-hole.

Abstract: The present invention provides a mechanical packing conversion apparatus integrating packaging, measuring, cutting and protecting functions, comprising a box, a measuring scale and a cutting mechanism. An upper cover of the box of the apparatus and a side plate connected to the upper cover can be overturned and opened from side faces, and the cutting mechanism is disposed on a sidewall in the box; the cutting mechanism comprises a head and a base, the head being fixed to the base, a handle, a transmission member and a blade all successively connected being disposed in the head; a through hole is formed at a bottom end of the head, and the blade is placed vertically above the through hole and is communicated with the through hole; a groove configured to receive the measuring scale is provided at a bottom end of the base; and the measuring scale is fixed to the bottom inside the box.