An apparatus for connecting two pipes in fluid communication includes a connector body having opposing open ends, with each open end configured for receiving a free end of a pipe, and a mechanical interlock arrangement for preventing or limiting axial movement of the connector body relative to a free end of a pipe when the free end of the pipe is received in an open end of the connector body. A mechanical seal arrangement provides a metal-to-metal seal between a pipe inserted into one of the open ends and the connector body.

Disclosed herein are air intake assemblies for internal combustion engines. In some embodiments, an air intake assembly includes an air filter configured to produce filtered air, a sealed filter housing configured to house the air filter therein, and an intake tube configured to convey the filtered air to an internal combustion engine. The filter housing includes an air intake port configured to provide intake air to the air filter. The air filter is configured to remove particulate matter from the intake air and produce the filtered air. The air filter includes a multi-component coupling interface configured to accept an intake-end portion of the intake tube in the coupling interface. The filter housing includes an aperture configured to accept the coupling interface of the air filter in the aperture. Also disclosed herein are methods of the air intake assemblies.

A description is given of an internally hollow fitting for the passage of a liquid, in particular water, with a component to restrain unmovably a pipe of an irrigation system, wherein restraining component of the pipe is carried by a ring nut screwing on an external thread of the at least one end of the fitting.

A device for clamping an element includes a pressure chamber having a flexible wall section with an elastic jacket and a rigid wall section that acts as a counter-bearing. The jacket is provided with a contact surface to connect with the element.

Disclosed herein are air intake assemblies for internal combustion engines. In some embodiments, an air intake assembly includes an air filter configured to produce filtered air, a sealed filter housing configured to house the air filter therein, and an intake tube configured to convey the filtered air to an internal combustion engine. The filter housing includes an air intake port configured to provide intake air to the air filter. The air filter is configured to remove particulate matter from the intake air and produce the filtered air. The air filter includes a multi-component coupling interface configured to accept an intake-end portion of the intake tube in the coupling interface. The filter housing includes an aperture configured to accept the coupling interface of the air filter in the aperture. Also disclosed herein are methods of the air intake assemblies.

An apparatus for connecting two pipes in fluid communication includes a connector body having opposing open ends, with each open end configured for receiving a free end of a pipe, and a mechanical interlock arrangement for preventing or limiting axial movement of the connector body relative to a free end of a pipe when the free end of the pipe is received in an open end of the connector body. A mechanical seal arrangement provides a metal-to-metal seal between a pipe inserted into one of the open ends and the connector body.

A downpipe fitting for coupling between top and bottom ends of a downpipe. The downpipe fitting includes two parts connected together and rotatable relative to one another about a longitudinal axis thereof. The first part has an inlet, sized and shaped to couple with an outlet of a first section of the downpipe, above the downpipe fitting. The second part has an outlet which is sized and shaped to couple with an inlet of a second section of the downpipe, below the downpipe fitting. The inlet and outlet of the fitting define a flow path for rainwater therethrough. Rotation of the second section of downpipe below the downpipe fitting, about the longitudinal axis, is decoupled from the first section of downpipe above the downpipe fitting.

A nipple-shaped assembly-free tool for maintenance of a gearbox in a vehicle is described. The tool comprises a tubular body extending in an axial direction and having a first portion and a second portion; and a cap nut surrounding the first portion of the tubular body. The cap nut is rotatable and axially translatable in relation to the tubular body. The tubular body comprises a hose fitting structure at the second portion of the tubular body. The cap nut and the tubular body are retained as one unit such that they are non-detachable from each other.

A coupling system for quickly connecting fluid conveying conduits.

Disclosed herein are air intake assemblies for internal combustion engines. In some embodiments, an air intake assembly includes an air filter configured to produce filtered air, a sealed filter housing configured to house the air filter therein, and an intake tube configured to convey the filtered air to an internal combustion engine. The filter housing includes an air intake port configured to provide intake air to the air filter. The air filter is configured to remove particulate matter from the intake air and produce the filtered air. The air filter includes a multi-component coupling interface configured to accept an intake-end portion of the intake tube in the coupling interface. The filter housing includes an aperture configured to accept the coupling interlace of the air filter in the aperture. Also disclosed herein are methods of the air intake assemblies.