Patent ID: 7471210

Claim:
A chime unit for a doorbell system, said chime unit comprising: a base for producing an audible signal when activated by said doorbell system, said base being adapted for mounting to a support structure; a first cover for covering said base opposite said support structure; first mounting parts carried by said base and second mounting parts carried by said cover, said cover having first mounted and second mounted positions covering said base, said cover carried by said base in either said first mounted or second mounted position, said first mounting parts releasably snap-fitted to said second mounting parts when said cover is in its said first mounted position, one of said first and second mounting parts including a first guide part, the other of said first and second mounting parts having a guide opening, a pair of radially spaced resilient catch parts carried by said one of said first and second mounting parts, said other of said first and second mounting parts having a catch recess, one of said catch parts fitted within said catch recess and said first guide part fitted within said guide opening when said cover is in its said either mounted position.