Ranco Inc. of Delaware

Maple Chase Company

Rodney Wayne Scuka

Timothy D Kaiser

Paul J Baker

An adverse condition detector that records historical data concerning the operation of the detector such that the detector can be interrogated by a technician. The microprocessor of the adverse condition detector monitors for alarm conditions and other important information related to the operation of the detector. Upon identifying an important characteristic of the detector operation, the microprocessor time stamps the information and stores the information within memory of the microprocessor. The detector includes an interface pad that is accessible from the exterior of the detector such that a technician can access the interface pad without removing the detector housing.

Adverse condition detector with diagnostics

An interface circuit and method for use in interconnected hazardous condition detectors is provided. This circuit and method prioritizes the various hazardous condition alarms to ensure that only the highest priority or greatest threat alarm is sounded when such a condition is detected. In this way a lower priority alarm that may be sounding will be switched to a higher priority alarm so that all interconnected detectors that have the capability will sound the higher priority alarm. This will reduce occupant confusion during a hazardous condition. The circuit and method also provides the ability to silence all interconnected detectors except for those sensing the hazardous condition to allow the occupant to locate the triggering alarm, and there for the location of the sensed hazardous condition.

Circuit and method for prioritization of hazardous condition messages for interconnected hazardous condition detectors

An alarm system for signalling when a door of a refrigeration unit compartment is not fully closed comprises an alarm condition sensing system having a door sealing gasket magnet and a magnetically actuated switch. The gasket magnet produces an elongated narrow magnetic field for coupling the unit and the door in sealing relationship when the door is fully closed. The switch senses the magnetic field when the door is closed even though the magnet position may be anywhere in a band of possible positions. An alarm system signals when a door of a refrigeration unit compartment is not fully closed. The alarm assembly comprises a housing wall section, a vibratable alarm member, and mounting structure for connecting the alarm member to the housing wall section so that the housing wall section is driven by the member and vibrates relative to the housing when the member vibrates at an operating frequency. A plainly audible alarm is produced when a door ajar condition is sensed.

Growing community of inventors

Dublin, OH, United States of America

Rodney Wayne Scuka