A sealing lid for sealing a compartment of a supercapacitor housing electrodes and electrolytic material is described, the supercapacitor comprises: a casing internally defining the compartment and having a longitudinal axis, a side wall extending around the longitudinal axis, an axial bottom wall and an axial opening for accessing to the compartment arranged on an axially opposite side of the side wall with respect to the end wall; and at least one terminal electrically connected to one of the electrodes and protruding outside the compartment through the axial opening; the lid is adapted to close the axial opening and comprises an elastomeric element having: an internal through-hole adapted to receive the terminal and delimited by an internal wall adapted to cooperate in fluid-tight contact with the terminal; and a peripheral wall adapted to cooperate in fluid-tight contact with the side wall.

A hole plug includes: a tubular outer periphery wall portion for insertion into a burring hole formed in an attachment member; an annular flange portion that protrudes toward a radial direction outer side of the outer periphery wall portion, from an end portion side of the outer periphery wall portion at an opposite side from an insertion direction side of the outer periphery wall portion; a pawl portion that projects toward the radial direction outer side from the outer periphery wall portion; a closure portion that extends between inner sides of the outer periphery wall portion; and an abutting portion provided at at least one of the flange portion or the outer periphery wall portion, the abutting portion overlapping with a periphery edge portion of the burring hole as seen in the insertion direction, and the abutting portion configured to abut the periphery edge portion.

A hole plug includes: a tubular outer periphery wall portion for insertion into a burring hole formed in an attachment member; an annular flange portion that protrudes toward a radial direction outer side of the outer periphery wall portion, from an end portion side of the outer periphery wall portion at an opposite side from an insertion direction side of the outer periphery wall portion; a pawl portion that projects toward the radial direction outer side from the outer periphery wall portion; a closure portion that extends between inner sides of the outer periphery wall portion; and an abutting portion provided at at least one of the flange portion or the outer periphery wall portion, the abutting portion overlapping with a periphery edge portion of the burring hole as seen in the insertion direction, and the abutting portion configured to abut the periphery edge portion.

The disclosure provides a mechanism for sealing cylinder and cylinder head, comprising a gas outlet portion of the cylinder, the cylinder head and a seal structure; wherein the gas outlet portion is provided with an outlet and a position-retaining protruding edge surrounding an outside of the outlet; the seal structure comprises a first sealing ring arranged inward of the position-retaining protruding edge and comprises a heat insulating sheet, wherein the heat insulating sheet covers the first sealing ring to seal the outlet; the cylinder head covers the gas outlet portion, and a movable member and an elastic member configured to tightly press the movable member against the heat insulating sheet are arranged inside the cylinder head.

A cup-shaped cover of a pedal travel simulator, hydraulic accumulator, or a damper chamber, using a radially resilient connecting ring, which protrudes into a groove of the cover and into an opposing groove of a receptacle of a hydraulic block of a traction slip controller of a hydraulic vehicle braking system, to fasten inseparably at the hydraulic block.

A cup-shaped cover of a pedal travel simulator, hydraulic accumulator, or a damper chamber, using a radially resilient connecting ring, which protrudes into a groove of the cover and into an opposing groove of a receptacle of a hydraulic block of a traction slip controller of a hydraulic vehicle braking system, to fasten inseparably at the hydraulic block.

An apparatus for sealing an opening in a metal sheath surrounding an insulated pipe is provided, the apparatus including a base comprising an outer flange securable within the opening, and defining an inner passage therethrough, the base having an annular ridge extending into the inner passage; a flexible waterproof body positionable within the inner passage, the body having a periphery therearound and a groove located within the periphery adapted to engage around the annular ridge; and a flexible metal element within the base.

An apparatus for sealing an opening in a metal sheath surrounding an insulated pipe is provided, the apparatus including a base comprising an outer flange securable within the opening, and defining an inner passage therethrough, the base having an annular ridge extending into the inner passage; a flexible waterproof body positionable within the inner passage, the body having a periphery therearound and a groove located within the periphery adapted to engage around the annular ridge; and a flexible metal element within the base.

A hole plug includes a cap and a securing frame. The securing frame extends from the cap. The securing frame includes first and second support legs, first and second connectors, and a lock body. The first connector is engaged with the first support leg. The second connector is engaged with the second support leg. The lock body is engaged with the first and second connectors.

A hole plug includes a cap and a securing frame. The securing frame extends from the cap. The securing frame includes first and second support legs, first and second connectors, and a lock body. The first connector is engaged with the first support leg. The second connector is engaged with the second support leg. The lock body is engaged with the first and second connectors.