Patent Application
20070116314
This invention pertains to a facemask of a type worn by a firefighter or by an emergency rescue worker, as combined with an earpiece, which is mounted to the facemask.
Measuring body core temperature or measuring a temperature enabling body core temperature to be calculated, determined, or approximated can be very important to a firefighter or to an emergency rescue worker, either of whom can become overheated to a potentially fatal condition.
In U.S. Patent Application Publication No. US 2004/0242976 A1, it is disclosed in FIG. 55 and in paragraph 0439 to mount a temperature sensor on a nosepiece of a mask, such as a mask for a firefighter. The temperature sensor is used to sense, on an external region on the nose of a wearer, a temperature approximating body core temperature.
In U.S. Patent Application Publication No. US 2005/0177034 A1, the disclosure of which is incorporated herein by reference, an ear canal sensing device is disclosed. The ear canal sensing device, which is inserted into an ear canal of a wearer, is employed to monitor physiological factors, which can include a temperature approximating body core temperature. Furthermore, it is disclosed that the ear canal sensing device can be also adapted to provide full duplex (two-way) communication, via a speaker and a microphone.
As exemplified in numerous prior patents including U.S. Pat. No. 4,993,419, No. 5,012,813, No. 5,199,436, No. 5,445,158, No. 5,381,796, No. 5,653,238, No. 6,047,205, and No. 6,219,573 B1; technology is known, by which to calculate, determine, or approximate body core temperature from a temperature sensed in an ear canal.
This invention provides, for a firefighter or for an emergency rescue worker, a novel combination comprising a facemask and an earpiece, which is mounted to the facemask so as to extend into an ear canal of a wearer wearing the facemask.
Preferably, the earpiece comprises a temperature sensor, which is arranged to measure a temperature in the ear canal of the wearer. Via known technology, the temperature can be then used to calculate, determine, or approximate body core temperature of the wearer. Preferably, the earpiece comprises a microphone, a speaker, or both so as to provide for audible communication between the wearer and another.
Preferably, the facemask comprises a frame, to which the earpiece is mounted. Preferably, the combination comprises an arm, by which the earpiece is mounted to the frame.
As illustrated in
On the projecting portion 42, the earpiece 40 has a temperature sensor 50, which is useful to sense a temperature continuously, intermittently, or whenever polled, at a location at or near a surface of the firefighter's ear canal entered by the projecting portion 42. Via known technology, the sensed temperature is used to calculate, determine, or approximates the body core temperature of the firefighter wearing the earpiece 40. The sensed temperature can be electronically transmitted, either via a wired connection (not illustrated) or wirelessly, e.g., via Bluetooth technology, to a monitor carried by the firefighter in a pocket. Desirably, the monitor is equipped with an alarm, which emits an audible signal whenever the sensed temperature equals or exceeds a preset temperature. The sensed temperature can be wirelessly transmitted, e.g., via simplex (one-way) radio communication, to a monitor being monitored by a safety officer, who may be located at a command center.
On the projecting portion 42, the earpiece 40 has a microphone 60, which enables the firefighter wearing the earpiece to speak to another firefighter, a safety officer, or an incident commander, who may be located at a command center. On the projecting portion 42, the earpiece 40 has a speaker 70, which enables another firefighter, a safety officer, or an incident commander, who may be located at a command center, to speak to the firefighter wearing the earpiece 40. The microphone 60 and the speaker 70 may be components of a duplex (two-way) radio communications system. in a preferred embodiment, the earpiece 40 has a programmable microchip 100, which is programmed (a) to store a preset temperature, (b) to receive a temperature sensed by the temperature sensor 50, (c) to compare the sensed and preset temperatures, and (d) if the sensed temperature equals or exceeds the preset temperature, then to sound an alarm via the speaker 70, but (e) if the sensed temperature does not equal or exceed the preset temperature, then not to sound the alarm.
In an alternative embodiment, the temperature sensor 50 is not employed in step (b) but the microchip 100 is programmed in step (b) to receive a temperature sensed by one of the temperature-sensing means disclosed in U.S. Patent Application Publication No. US 2005/0177034 A1, supra.
