A connector member (10) for use with a sprinkler system includes a hollow body (12) having a passage (14) therein, and at least two open end portions (16) for communication with the exterior. Each open end portion (16) includes an inner tubular section (18) in communication with the passage (14) of the...http://www.google.co.uk/patents/US5617999?utm_source=gb-gplus-sharePatent US5617999 - Connector member assembly for use with sprinkler system