Abstract: A double locking connection device is provided between two sheet metal components to press the two components together and to prevent them from pivoting about an axis. A first component includes at least one arc-shaped key-hole having a) a first arched zone of a first width, a second arched zone following the first arched zone and having a second width smaller than the first width, and a third zone arranged between the first and second and having a width which decreases progressively in a direction of rotation from the first width to not greater than the second width. The second component includes an elastic locking tab suitable for placement in the first arched zone and having a width slightly less than the first width but greater than the second width so that relative rotation of the two components results in the double locking thereof.

Abstract: An isolating mount for connecting two parts or mechanisms includes a rigid bushing surrounded by a resilient block which includes closed cavities on opposite sides of said bushing located along a first plane parallel to the longitudinal axis of said bushing and a passage formed by pipes extending outside the mount between the cavities. A quantity of liquid fills the cavities and passage, providing a liquid column of predetermined inertia in the passage between the cavities for controlling the frequency and amplitude of forces transmitted through the bushing to provide tuning of the damping characteristics of the mount to preselected frequencies of vibration. A rigid outer body surrounds and contacts the block and exerts compressive force thereon substantially along the first plane. The bushing is connected to one of the two parts to be isolated and the outer body is connected to the other of the two parts.

Abstract: An isolating mount for connecting two parts or mechanisms includes a rigid bushing surrounded by a resilient block which includes cavities on opposite sides of the bushing located along a first plane parallel to the longitudinal axis of the bushing and passage formed between the cavities. A quantity of liquid fills the cavities and a passage, providing a liquid column of predetermined inertia in the passage between the cavities for controlling forces transmitted through the bushing to provide tuning of the damping characteristics of the mount to preselected frequencies of vibration. A rigid outer body surrounds and contacts the block and exerts compressive force thereon substantially along the first plane. The bushing is connected to one of the two parts to be isolated and the outer body is connected to the other of the two parts.

Abstract: An isolating mount, such as for an engine, comprises a rigid bushing with a resilient rubber block molded around it and cavities formed in the block opening to its exterior on opposite sides of the bushing, preferably located along a plane parallel to the longitudinal axis of the bushing. End plates are bonded to the block surrounding the open ends of the cavities, and these plates may have flanges thereon coated with rubber. Optional floor plates may be incorporated in the block at the bottoms of one or both cavities. Covers are held in sealed relation over the cavities, as by forming the flanges around the covers to retain them. A passage is formed between the cavities, and the cavities and passage are filled with a liquid which is confined therewithin. Displacement of the block in response to forces acting on the mount will result in distortion of the cavities and corresponding displacement of the liquid from one of the cavities to the other to damp motion of the block.