A multi-mode air compressor pressure switch is disclosed. A first mode of operation of the switch has a first range that includes a first cut-out pressure and a first cut-in pressure. A second mode of operation of the switch has a second range that includes a second cut-out pressure and a second cut-in pressure. The second range is smaller than the first range. The second mode of operation adds compressor output over the first mode of operation to extend operable time of a tool that is connected to a compressor that is controlled by the first mode and the second mode.

A multi-mode air compressor pressure switch is disclosed. A first mode of operation of the switch has a first range that includes a first cut-out pressure and a first cut-in pressure. A second mode of operation of the switch has a second range that includes a second cut-out pressure and a second cut-in pressure. The second range is smaller than the first range. The second mode of operation adds compressor output over the first mode of operation to extend operable time of a tool that is connected to a compressor that is controlled by the first mode and the second mode.

A fluid flow regulator comprises a body, an actuatable switch, and valve structure. The valve structure is disposed within the body and has at least a portion movable between an actuating position and a non-actuating position. The actuating position actuates the switch. The non-actuating position does not actuate the switch.

According to various embodiments, an input device may be provided. The input device may include: a housing having an upper portion and a lower portion; a key top provided at the upper portion; a switch coupled to the key top; a biasing element having a first end and a second end, wherein the first end is coupled to the key top, and wherein the second end is coupled to the lower portion; and an adjustment mechanism configured to adjust a pretension of the biasing element.

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.

In one example embodiment, a vibration apparatus can augment and enhance negative-pressure therapy systems. The apparatus can be attached to an external surface of a dressing, fluid conductor, or other components. The apparatus can generate low-amplitude vibrations, which can be transmitted through the components. Kinetic energy of the oscillations can agitate fluid in the components, which can lower the viscosity of the fluid and reduce the frequency of blockages in fluid conductors. Vibrations may also agitate a tissue site, which can encourage blood flow and granulation.

According to various embodiments, an input device may be provided. The input device may include: a housing having an upper portion and a lower portion; a key top provided at the upper portion; a switch coupled to the key top; a biasing element having a first end and a second end, wherein the first end is coupled to the key top, and wherein the second end is coupled to the lower portion; and an adjustment mechanism configured to adjust a pretension of the biasing element.

A flow switch including: a fluid inlet for receiving fluid in-line relative to a flow switch body; a poppet valve disposed in the fluid inlet and having a variable location relative to the flow switch body; an actuator pin affixed to the poppet valve; a helical spring disposed about the actuator pin, where the poppet valve is spring-loaded via the spring; and where the spring-loaded poppet valve is configured to move away from the fluid inlet with increasing volumetric fluid flow and towards the fluid inlet with decreasing volumetric fluid flow.

According to various embodiments, an input device may be provided. The input device may include: a housing having an upper portion and a lower portion; a key top provided at the upper portion; a lever member coupled to the lower portion via a joint; a plunger; and a switch including a depressible portion coupleable to the key top via the lever member and the plunger; wherein the plunger is coupleable to the lever member at a distance from the joint which is different from a distance from the joint at which the depressible portion is coupleable to the lever member.

Swivel actuating pressure switching devices and methods are described herein that include a shorting member that translates and rotates into contact with one or more terminals in response to the application of a specified pressure to a piston included in the switch. The rotation of the shorting member with respect to the one or more terminals can be controlled by a receptacle that can include flutes, which guide the rotational movement of the shorting member in response to fluid pressure that causes the translation of the piston.