Patent ID: 7533686

Claim:
A frost-free mixing sillcock comprising: a spout mounted outside of a structure; a valve body having inlets for connection to a hot fluid supply and a cold fluid supply, said valve body disposed inside said structure; a cartridge assembly disposed at least partially within said valve body, said cartridge assembly operable to mix fluid from said hot fluid supply and said cold fluid supply; a single handle operable to adjust at least one of temperature and flow rate of fluid discharging from said spout, and a cartridge retainer, wherein a first end of said cartridge retainer is disposed inside said structure and detachably connected to said cartridge assembly, wherein a second end of said cartridge retainer is disposed outside said structure and interfaces with said spout, and wherein said cartridge assembly is operable to be serviced from said exterior of said structure without unmounting said spout from said structure.