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US5632339A
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Fire protection sprinkler head with spaced zones for mounting a protective guard and for connecting the sprinkler head to a water supply line
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US5372203A
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Concealed sprinkler head
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US5234059A
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Frangible bulb sprinkler head
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US5195592A
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Sprinkler head having cap ejection system
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US4987957A
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Deflector for side wall sprinkler head
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US5072792A
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Concealed sprinkler head assembly
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US4977963A
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Partially concealed fast response sprinkler head
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US4757865A
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Fast response sprinkler head
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US3756321A
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Flush type sprinkler
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US3171935A
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Heat responsive device
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US3080000A
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Dry pendant sprinklers
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US3007528A
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Dry pendant sprinklers
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US2664956A
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Sprinkler head
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US2428748A
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Nozzle
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US1945808A
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Thermostatic switch
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US1919508A
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Automatic fire apparatus
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US1909490A
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Actuator for a dry pipe sprinkler system
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US1919507A
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Sprinkler fire extinguishing system
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US1881513A
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Exhauster for sprinkler fire extinguishing systems
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US1913027A
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Alarm valve for sprinkler systems
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