Brk Brands, Inc.

Kenneth L Venzant

Derek Scott Johnston

Andrew J Ivanecky

Mark A Devine

Floyd Brooks

Romualdo S Siazon

Michael A Swieboda

Lulzim Osmani

Edward C Duran

Samuel D Lopez

Vincent B Mori

Mark A Watson

A contactless ambient condition detection system includes at least one base connectable to a power and signal transmitting cable and a compatible detector. The detector removably engages the base. Electrical energy, from the cable is wirelessly coupled to the detector via the base. The detector is in wireless bidirectional communication with the base. Alarm indicating signals, generated remotely, can be wirelessly coupled, from the cable via the base, to the detector. Locally generated alarms can be wirelessly coupled to the cable. Detectors can be replaced without exposing the installer to AC contacts.

Power supply and interconnect detector system

A smoke detector monitors one or more internal conditions, such as battery output voltage in detectors that include batteries. Both audible and visible indicators are energized to indicate the presence of the monitored condition or conditions. A switch or a wireless sensor on the detector can be actuated to temporarily suppress the audible indicator provided the battery exhibits an output voltage in a predetermined range, less than that of normal operation.

Device with silencing circuitry

A modular detector includes at least one module receiving port. Members of a plurality of modules have a common form factor and are removably insertable into the port. Members of the plurality, when inserted, implement a selected communication, sensing or output function. One module can be removed and replaced with another thereby changing detector characteristics. A respective detector could have several ports to receive a plurality of insertable modules.

Modular detector system

A smoke detector has a geometry that locates a sensor or sensors at or near a boundary layer of smoke movement thus facilitating smoke entry into the sensor and/or sensors. The sensors are mounted so as to protrude from the bottom of a cover instead of into the cover of the detector.

Smoke detector with sensor having improved mounting configuration

Smoke alarms that incorporate dust repelling screens exhibit improved performance with fewer false alarms. Effective screens include conductive strands combined with non-conductive elements.

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Bolingbrook, IL, United States of America

Kenneth L Venzant