Abstract: A fastening apparatus includes an annular base element having an assembly wall for abutting a first component and a first fastening wall for abutting the second component, and an assembly element having a bottom wall. To enable passage through a second through-opening of the second component, the assembly element has a smaller diameter than the base element. At least two diametrically opposed foldable retaining arms are arranged radially circumferentially and connect the assembly wall to the assembly element. The retaining arms are each connected to the assembly element and the base element via a respective joint and form an articulated joint in the region between the joints. A region of the retaining arms between the articulated joints and the assembly wall forms a fastening portion, and at least one catching device is provided to connect the base element to the assembly element in an assembly position.

Abstract: A fastener for coupling a first component to a mounting hole of a second component. The fastener includes a central body portion, a head portion, provided at the proximal end of the central body portion. The fastener has at least two resilient ribs, protruding radially outward from an outer surface of the central body portion. The fastener includes at least a first pair of diametrically opposed recessed surfaces, provided at the proximal end of the central body and extending axially between the head portion and a respective shoulder portion formed by each one of the first pair of recessed surfaces. The at least two resilient ribs extend along the outer surface of the central body portion in a direction along the central axis between the distal end and the proximal end, and axially past the respective shoulder portion.

Abstract: A valve assembly includes a first part mountable to a fluid port of a panel and having a first opening for ingress of fluid into the first part from a first side of the panel, and a second opening for egress of fluid out of the first part through the fluid port to a second side of the panel; a second part within the first part for sealing the second opening when in a first position, a deformable member, and a resilient member biased to move the second part to a second position, to provide a fluid flow path from the first opening to the second. In an initial state, the deformable member retains the second part in the first position. Upon contacting liquid within the first part, at least part of the deformable member deforms to enable the resilient member to move the second part to the second position.

Abstract: A sealing plug (100) for a panel opening, the plug having an axis (132) and including a head portion (110) having a first diameter larger than of the panel opening and a leg portion (120) concentric to the head portion (110) and having a second diameter shorter than the first diameter, the leg includes at least two latches (130) extending radially towards the head portion (110), and wherein the passing of the leg portion (120) and the at least two latches (130) through the panel opening causes resilient deformation of each latch (130), such that each latch (130) deforms and recovers thereby causing the panel to be retained by the at least two latches (130) and between the at least two latches (130) and the head portion (110) of the plug (100).

Abstract: A pressure relief valve includes a bowl-shaped housing having a bottom wall and an annular sealing wall, wherein the sealing wall delimits a valve through-opening, and a jacket wall. A cover is provided for covering a housing opening of the housing opposite to the bottom wall, having a diaphragm holder extending in the direction of the bottom wall. A diaphragm is provided for covering the valve through-opening, wherein the diaphragm is connected to the diaphragm holder and disposes the diaphragm holder sealingly on the annular sealing wall such that the valve through-opening is closed.

Abstract: A fastening apparatus includes an annular base element having an assembly wall for abutting a first component and a first fastening wall for abutting the second component, and an assembly element having a bottom wall. To enable passage through a second through-opening of the second component, the assembly element has a smaller diameter than the base element. At least two diametrically opposed foldable retaining arms are arranged radially circumferentially and connect the assembly wall to the assembly element. The retaining arms are each connected to the assembly element and the base element via a respective joint and form an articulated joint in the region between the joints. A region of the retaining arms between the articulated joints and the assembly wall forms a fastening portion, and at least one catching device is provided to connect the base element to the assembly element in an assembly position.

Abstract: A fastener includes a base member; a first member, on the base member and having a through bore; a second member, on the base member and spaced from the first member to form a receiving portion to receive a panel structure, including an aperture defining an internal surface, the internal surface including at least one stop member protruding radially inwardly, and a nut member, coaxially aligned within and frangibly connected to the internal surface, including at least one block member protruding radially outward from an outer surface of the nut member to stoppingly engage with the at least one stop member. During use, the nut member moves from a first position, where the nut is frangibly connected to the internal surface, to a second position, where the least one block member abuttingly engages with the at last one stop member.

Abstract: A valve assembly includes a first part mountable to a fluid port of a panel and having a first opening for ingress of fluid into the first part from a first side of the panel, and a second opening for egress of fluid out of the first part through the fluid port to a second side of the panel; a second part within the first part for sealing the second opening when in a first position, a deformable member, and a resilient member biased to move the second part to a second position, to provide a fluid flow path from the first opening to the second. In an initial state, the deformable member retains the second part in the first position. Upon contacting liquid within the first part, at least part of the deformable member deforms to enable the resilient member to move the second part to the second position.

Abstract: A fastener includes a base member; a first member, on the base member and having a through bore; a second member, on the base member and spaced from the first member to form a receiving portion to receive a panel structure, including an aperture defining an internal surface, the internal surface including at least one stop member protruding radially inwardly, and a nut member, coaxially aligned within and frangibly connected to the internal surface, including at least one block member protruding radially outward from an outer surface of the nut member to stoppingly engage with the at least one stop member. During use, the nut member moves from a first position, where the nut is frangibly connected to the internal surface, to a second position, where the least one block member abuttingly engages with the at last one stop member.

Abstract: A pressure relief valve includes a bowl-shaped housing having a bottom wall and an annular sealing wall, wherein the sealing wall delimits a valve through-opening, and a jacket wall. A cover is provided for covering a housing opening of the housing opposite to the bottom wall, having a diaphragm holder extending in the direction of the bottom wall. A diaphragm is provided for covering the valve through-opening, wherein the diaphragm is connected to the diaphragm holder and disposes the diaphragm holder sealingly on the annular sealing wall such that the valve through-opening is closed.

Abstract: The affixing device for pieces includes an affixing element (1) that can be positioned through an opening (6) in each one of the pieces (7, 8) that are affixed to each other, that also comprises a first and second retaining elements (2, 3), which, when they are in their affixing positions, are in contact with the pieces (7, 8) that are affixed to each other, with the affixing element (1) passing through the first and second retaining elements (2, 3), and with the first retaining element (2) including an accommodation space for a tool. This configuration allows for faster and simpler assembly of the affixing device, also avoiding problems of misalignment.

Abstract: A sealing plug (100) for a panel opening, the plug having an axis (132) and including a head portion (110) having a first diameter larger than of the panel opening and a leg portion (120) concentric to the head portion (110) and having a second diameter shorter than the first diameter, the leg includes at least two latches (130) extending radially towards the head portion (110), and wherein the passing of the leg portion (120) and the at least two latches (130) through the panel opening causes resilient deformation of each latch (130), such that each latch (130) deforms and recovers thereby causing the panel to be retained by the at least two latches (130) and between the at least two latches (130) and the head portion (110) of the plug (100).

Abstract: A fastener for coupling a first component to a mounting hole of a second component. The fastener includes a central body portion, a head portion, provided at the proximal end of the central body portion. The fastener has at least two resilient ribs, protruding radially outward from an outer surface of the central body portion. The fastener includes at least a first pair of diametrically opposed recessed surfaces, provided at the proximal end of the central body and extending axially between the head portion and a respective shoulder portion formed by each one of the first pair of recessed surfaces. The at least two resilient ribs extend along the outer surface of the central body portion in a direction along the central axis between the distal end and the proximal end, and axially past the respective shoulder portion.

Abstract: The affixing device for pieces includes an affixing element (1) that can be positioned through an opening (6) in each one of the pieces (7, 8) that are affixed to each other, that also comprises a first and second retaining elements (2, 3), which, when they are in their affixing positions, are in contact with the pieces (7, 8) that are affixed to each other, with the affixing device (1) passing through the first and second retaining elements (2, 3), and with the first retaining element (2) including an accommodation space for a tool. This configuration allows for faster and simpler assembly of the affixing device, also avoiding problems of misalignment.