Tyco Fire + Security Gmbh

Thorn Security Limited

Paul Jon Taylor

Faruk Meah

Andreas Brenner

Jake Pearson

Steven Ian Bennett

Stephen John Penney

Josef Prokop

John E A Shaw

Steve J Penney

Visual alarm for alarm unit

Visual indicator for alarm unit

Sounder for alarm unit

A mounting unit () for mounting an electrical component () to a panel has a first member () arranged to engage a first side of said panel and a second member () arranged to engage the first member and a second, opposite side of said panel, so as to secure the first and second members to opposite sides of the panel through a hole in the panel. The first and second members define a space for receiving the electrical component. The mounting unit is particularly suitable for mounting the electrical component to a ceiling tile.

Mounting unit

A particulate detector () comprises a radiation source () arranged to emit radiation in at least first and second predetermined wavebands towards a sampling region () suspected of containing particulates, and a detection element (), shielded from the radiation source (), and arranged to detect radiation from the sampling region () at least first and second instances. The radiation source () is such that the emissions in the wavebands temporarily overlap. The detector is such that, at the instances at which the radiation is detected, the relative contributions from the emissions in each predetermined waveband are distinguishable, thereby allowing characteristics of the particulates to be determined. The radiation source () may comprise a light emitting diode ().

Particulate detector

A detector for smoke, heat or the like, which has test function circuitry capable of initiating verification of the detector operation, including testing of a communication path between the detector and a central control unit. The test is actuated on receipt of a signal initiated at the detector, which indicates success by illuminating the detector's LED. An operator is able to initiate the test by means of a laser pointer.

Fire detector

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Woking, United Kingdom

Paul Jon Taylor