| 摘要 |
<p>A Push To Connect (PTC) fitting cartridge (12) for connecting to a pneumatic device (10), such as, an air brake or a height control valve, the PTC fitting cartridge (12) including at least one protrusion (36) positioned on an outer surface of the PTC fitting cartridge, which is provided to interact with an undercut (38) positioned on an inner surface of a port (14). The undercut (38) interacts with the protrusion (36) to substantially eliminate stress on the surrounding material to reduce the chance of fraction thereof.</p> |
