The invention relates to a membrane pressure switch (1) comprising a housing (2), in which a deformable membrane (3) is arranged, against which a mushroom shaped thrust element (4) abuts, which is movable by the deformation of the membrane (3); and a microswitch (5), which is arranged in the housing (2) opposite the mushroom shaped thrust element (4) by means of a fixing disk (6), wherein the fixing disk (6) is provided with an external thread (7), which is screwed into an internal thread (8) of the housing (2) in the mounted state of the fixing disk (6).

The invention relates to a membrane pressure switch (1) comprising a housing (2), in which a deformable membrane (3) is arranged, against which a mushroom shaped thrust element (4) abuts, which is movable by the deformation of the membrane (3); and a microswitch (5), which is arranged in the housing (2) opposite the mushroom shaped thrust element (4) by means of a fixing disk (6), wherein the fixing disk (6) is provided with an external thread (7), which is screwed into an internal thread (8) of the housing (2) in the mounted state of the fixing disk (6).

The invention relates to a membrane pressure switch (1) comprising a housing (2), in which a deformable membrane (3) is arranged, against which a mushroom shaped thrust element (4) abuts, which is movable by the deformation of the membrane (3); and a microswitch (5), which is arranged in the housing (2) opposite the mushroom shaped thrust element (4) by means of a fixing disk (6), wherein the fixing disk (6) is provided with an external thread (7), which is screwed into an internal thread (8) of the housing (2) in the mounted state of the fixing disk (6).

The invention relates to a membrane pressure switch (1) comprising a housing (2), in which a deformable membrane (3) is arranged, against which a mushroom shaped thrust element (4) abuts, which is movable by the deformation of the membrane (3); and a microswitch (5), which is arranged in the housing (2) opposite the mushroom shaped thrust element (4) by means of a fixing disk (6), wherein the fixing disk (6) is provided with an external thread (7), which is screwed into an internal thread (8) of the housing (2) in the mounted state of the fixing disk (6).

A pressure switch includes a diaphragm sensing element disposed within a chamber to sealingly separate switching components from a passage. The diaphragm sensing element includes a convolution section that controls movement of a deflection section between neutral and pressurized positions. The pressure switch includes a reverse stop for limiting travel of the deflection section when exposed to negative pressure. A stationary seal element may be disposed at the reverse stop to further limit exposure of the convolution section of the diaphragm sensing element to negative pressure.

Systems, methods, and apparatuses for regulating the delivery of negative-pressure therapy are described. The system includes a negative-pressure source, an energy source, and a switch. The switch can include a first conductor electrically coupled to the negative-pressure source, a second conductor electrically coupled to the energy source, and a diaphragm having a first position electrically coupling the first conductor to the second conductor and a second position separated from the first conductor and the second conductor. The diaphragm is configured to move between the first position and the second position in response to a differential between a control pressure and a therapy pressure.

A vacuum circuit breaker comprising a vacuum interrupter and an actuator coupled to the vacuum interrupter. The vacuum interrupter and actuator are located in a vacuum chamber that is partitioned into first and second vacuum sub-chambers. The vacuum interrupter is located in the first sub-chamber and the actuator is located in the second sub-chamber. The partition is configured to support molecular flow between the first and second sub-chambers.

Applicant has created systems, methods, and apparatuses for controlling the power supply of a vacuum cleaner motor. The systems and apparatuses include pressure taps to detect a pressure differential within a vacuum cleaner, a float that adjusts depending on an amount of liquid stored, and a power switch that toggles based on the pressure differential created by the position of the float. Alternatively, the float can be replaced by an air chamber so that the pressure differential is created by liquid rising above the volume of air trapped in the chamber. The method can include interrupting the current supplied to an electrical circuit of a power switch based upon a pressure differential created within the vacuum. By controlling the power supply to a vacuum cleaner motor based on a pressure differential created by the amount of liquid stored within the vacuum cleaner, the vacuum cleaner can automatically disable the vacuum cleaner's motor as the vacuum approaches its maximum liquid capacity.

A pressure element for monitoring a fluid being applied to the pressure element, wherein the pressure element is configured to close an electrical circuit, as a result of a change in pressure which the fluid exerts on the pressure element, independently of an absolute value of the pressure, where the fluid preferably flows through a pipeline.

A pressure element for monitoring a fluid being applied to the pressure element, wherein the pressure element is configured to close an electrical circuit, as a result of a change in pressure which the fluid exerts on the pressure element, independently of an absolute value of the pressure, where the fluid preferably flows through a pipeline.