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US2003062718A1
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Ferrous pipe couplings and prelubricated coupling gaskets
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US6533333B1
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Hinged mechanical couplings with interfitting ends
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US6336509B1
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Low pressure fast response bulb sprinklers
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Universal mechanical coupling with interfitting ends
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CA2224134A1
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Fitting for plain end pipes
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US5971080A
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Quick response dry pipe sprinkler system
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Low pressure, early suppression fast response sprinklers
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Sidewall fire sprinkler head
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Remotely monitored tamper bar for a backflow preventer
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Sprinklers with shape-memory alloy actuators
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Modular valve for a building standpipe
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Extended coverage ceiling sprinklers and systems
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Directly mounted pendent-style sprinklers and covers
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Ceiling sprinkler
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Concealed automatic sprinkler
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Quick release valve for sprinkler head
|
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US4957169A
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Sprinkler valve assembly
|
|
US5094298A
|
|
Fire sprinkler apparatus
|
|
US4976320A
|
|
Concealed sprinkler with drop down deflector assembly, and improved fusible valve lever assembly
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US4926946A
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Pendent style sprinkler with cover
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