A shower arm attachment assembly may include a shower pipe coupling member, an arm coupling member, and a locking nut or sleeve. The shower pipe coupling member connects to a shower pipe, and the arm coupling member fluidly connects to a showerhead arm. The arm coupling member may be joined to the shower...http://www.google.es/patents/US20080083844?utm_source=gb-gplus-sharePatente US20080083844 - SHOWERHEAD ATTACHMENT ASSEMBLY
