Concealed residential sprinkler

摘要

A combined trigger and concealing device for an automatic fire protection sprinkler includes a first plate attached to a second plate by a heat fusible material. Each plate is formed with an aperture which receives an actuator depending from the bottom of the sprinkler. The trigger device depends a preselected distance from the bottom of the sprinkler body and includes a cover which has an outer dimension which conceals the internal components of the sprinkler from view. The cover includes openings and is dimensioned and positioned to permit heat energy to be received by the inner and outer surface of the trigger device. Conduction of heat energy from both the inner and outer surface of the trigger device permits the heat fusible material to be expeditiously raised to the preselected separation temperature. This construction minimizes response time of the sprinkler while maintaining a highly aesthetic appearance.

主权项

1. An automatic fire protection sprinkler comprising:
a sprinkler body having an inlet and an outlet, said outlet having an outer diameter; an outlet closure element selectively blocking said sprinkler body outlet; at least two sprinkler arms coupled to said sprinkler body; a deflector coupled to said sprinkler arms; a pair of actuating levers coupled with and extending from said sprinkler body; a pair of plates joined by a fusible material, said pair of plates engaged by said actuating levers, said actuating levers selectively maintaining said outlet closure element in an outlet blocking position, so as to form a selectively activated trigger for permitting fluid flow through said automatic sprinkler; and a cover attached to only one of said plates and having an outer dimension whereby said cover conceals said plates.