A mechanical barometer set up for detecting air pressure and direction of change and/or value of change thereof by means of a mechanical barometric measuring device, the barometer including a mechanical means which interacts with the measuring device and by means of which an acoustic code correlating with the value of the air pressure and/or the direction of change and/or the value of change thereof can be output, including a mechanical clockwork, characterized in that measuring signals provided by the measuring device can be amplified by means of the mechanical energy of a clockwork, wherein the mechanical means can be activated at regular time intervals by means of the clockwork.

A mechanical barometer set up for detecting air pressure and direction of change and/or value of change thereof by means of a mechanical barometric measuring device, the barometer including a mechanical means which interacts with the measuring device and by means of which an acoustic code correlating with the value of the air pressure and/or the direction of change and/or the value of change thereof can be output, including a mechanical clockwork, characterized in that measuring signals provided by the measuring device can be amplified by means of the mechanical energy of a clockwork, wherein the mechanical means can be activated at regular time intervals by means of the clockwork.

An ascent rate indicator mechanism includes a first wheel set and a pressure sensor. The first wheel set is connected to the pressure sensor driven in rotation by a pressure variation. The mechanism further includes a second wheel set driven by the first wheel set in a single direction of rotation from a start position into a measurement position corresponding to a decrease in pressure, uncoupling and return structure to be actuated at regular intervals to uncouple the second wheel set and to return it to the start position, an ascent rate display mechanism connected to the second wheel set and including an indicator member arranged to occupy, at each regular interval, a display position representative of the decrease in pressure during the interval, and synchronization structure actuated at each regular interval and arranged to maintain the display position of the indicator member during the regular interval.

Adaptive attachments used in combination with a blood pressure cuff enable various blood pressure measurements to be taken in a hospital or other setting having various single and/or dual lumen manual or electronic blood pressure measuring equipment with a single, patient-worn cuff.

A remotely interrogatable pressure transition indicator (100) having a pressure sensitive element (110) interacting with a remotely interrogatable mechanical switch (120). The pressure sensitive element (110) is a hermetically sealed, gas impermeable, flexible walled sachet (110) containing a quantity of gas, operable for transitioning between inflated and deflated conditions induced by a change in external gaseous pressure experienced by the sachet (110). The sachet (110) interacts with the mechanical switch (120) to producing a first interrogatable value when the sachet (110) is inflated and a second interrogatable value when the sachet (110) is deflated.

Altitude measurement device including an atmospheric pressure sensor arranged to be compressed or to expand in a rectilinear direction as a function of the atmospheric pressure to be measured which increases or decreases, wherein the movements of deformation of the atmospheric pressure sensor are transformed, via a transmission system, into a pivoting motion, in a plane perpendicular to the rectilinear direction of deformation of the atmospheric pressure sensor, of an activation system which drives the pivoting of an indicator hand, wherein the indicator hand moves over a graduated circular scale, wherein the atmospheric pressure sensor is arranged to be able to be moved in one direction or in the opposite direction depending on the rectilinear direction of deformation thereof relative to the other components of the altitude measurement device, wherein the atmospheric pressure sensor is mounted on a seat which is fixed in a support, which forms a case with a cover.

Adaptive attachments used in combination with a blood pressure cuff enable various blood pressure measurements to be taken in a hospital or other setting having various single and/or dual lumen manual or electronic blood pressure measuring equipment with a single, patient-worn cuff.

Sealed device for calibrating an altitude measurement device comprising an atmospheric pressure sensor whose movements of deformation are converted, via a transmission system, into a pivoting motion of an activation system that drives the pivoting of an indicator hand, wherein a sensing element bearing on the atmospheric pressure sensor is rigidly fixed to a transmission shaft movable along its longitudinal axis of symmetry, wherein the calibration device includes an air intake that can adjust the pressure inside the calibration device as required, and also includes a first button via which the axial position of the transmission shaft can be adjusted, and a second button via which it is possible to move the atmospheric pressure sensor up or down. The invention also concerns a method for calibrating the altitude measurement device using the sealed calibration device.

An ascent rate indicator mechanism includes a first wheel set and a pressure sensor. The first wheel set is connected to the pressure sensor driven in rotation by a pressure variation. The mechanism further includes a second wheel set driven by the first wheel set in a single direction of rotation from a start position into a measurement position corresponding to a decrease in pressure, uncoupling and return structure to be actuated at regular intervals to uncouple the second wheel set and to return it to the start position, an ascent rate display mechanism connected to the second wheel set and including an indicator member arranged to occupy, at each regular interval, a display position representative of the decrease in pressure during the interval, and synchronization structure actuated at each regular interval and arranged to maintain the display position of the indicator member during the regular interval.

Sealed device for calibrating an altitude measurement device comprising an atmospheric pressure sensor whose movements of deformation are converted, via a transmission system, into a pivoting motion of an activation system that drives the pivoting of an indicator hand, wherein a sensing element bearing on the atmospheric pressure sensor is rigidly fixed to a transmission shaft movable along its longitudinal axis of symmetry, wherein the calibration device includes an air intake that can adjust the pressure inside the calibration device as required, and also includes a first button via which the axial position of the transmission shaft can be adjusted, and a second button via which it is possible to move the atmospheric pressure sensor up or down.

The invention also concerns a method for calibrating the altitude measurement device using the sealed calibration device.