Patent ID: 6392556
Filing Date: 2002-05-21
Classification: A47D,G08B

Abstract:
An automatically actuatable safety chair-tilt alarm to warn a user of dangerous surface tipping being attached to a chair with a bottom surface, a first end, and a second end comprising:(a) an electrical circuitry having a warning device and a tilt sensor in electrical series, wherein the tilt sensor signal includes an angular position of the chair bottom surface, and wherein the tilt sensor sends a tilt sensor signal to the warning device when the chair is tipped from a level position beyond a predetermined angular position with respect to the chair bottom surface, wherein the warning device sends a warning signal to warn the user in response to the tilt sensor signal; (b) means for connecting the electrical circuitry to a power source, the connecting means having a plurality of terminals including at least one positive terminal and at least one negative terminal; (c) a base station; (d) a base transceiver, having a base antenna, in communication with the base station; and (e) a position-reporting module in communication with the tilt sensor and the base station, the position-reporting module transmits to the base station data, contained within the tilt sensor signal, received from the tilt sensor; whereby the tilt alarm is arranged to actuate when the chair is beyond design safety limits, the data, such as chair angular position, chair number, classroom, occupant assigned to chair, teacher, date, time, duration and number of times the chair exceeded predetermined limits, is retained by the base station for future retrieval and reporting, and whereby the tilt alarm is arranged to actuate when the chair is beyond design safety limits.