A pressure switch includes an airtight metallic pressure vessel. A contact mechanism is normally in a closed state and assumes an open state when a pressing force acts thereon. An airtight terminal, provided through an end surface section of the pressure vessel, is connected to the contact mechanism. A metallic first diaphragm is secured to a surface section at one end of the pressure vessel, is moved by a first moving pressure, and is reset by a reset pressure that is lower than the first moving pressure. A first plunger causes the contact mechanism to switch the open state. A metallic second diaphragm is secured to pressure vessel, is moved by a second moving pressure that is higher than the first moving pressure, and is not reset under at least an atmospheric pressure. A second plunger causes the contact mechanism to switch to the open state.

The aim of the invention is to create a device for indicating the status of a gas burner, which device functions independently of the circumstances of the specific gas burner design and arrangement. This aim is achieved, according to the invention, in that the device (1), which is connected to an outlet (7a) of the gas control apparatus (4) for the gas burner (2), consists of a housing (14), which has at least two chambers connected to each other, which are separated gas-tight by a membrane (16) connected on one side to an electrically conductive component (15), wherein: the chamber A (17) is connected to the gas outlet (7a) of the gas control apparatus (4); the membrane (16), to which the gas pressure of the gas burner (2) is applied through an opening (18) in the chamber A (17) when the gas valve is open, produces a stroke; by means of the stroke, the chamber B (19), in which the side of the membrane (16) having the connected electrically conductive component (15) is positioned, closes a circuit (20) via contact elements (10) led outward and suitably (12) indicates the operating status. The device for indicating the status of a gas burner can be used in the case of gas-operated heating apparatuses having gas control apparatuses having a liquid-filled temperature controller.

The present utility model discloses an air pressure switch, a power supply device using this air pressure switch, and an electronic cigarette using this power supply device. The air pressure switch includes a main body that includes a sensing area that will be triggered under negative pressure. The air pressure switch further includes a flexible protection film installed on the main body and at least the outer surface of the main body where sensing area is provided so that a first cavity is enclosed by the protective film and the surface of the main body where the sensing area is provided and formed. The protective film deforms away from the main body under the external suction force, so that the airflow in the first cavity can partially flow into the space generated by the deformation of the protective film.

The aim of the invention is to create a device for indicating the status of a gas burner, which device functions independently of the circumstances of the specific gas burner design and arrangement. This aim is achieved, according to the invention, in that the device (1), which is connected to an outlet (7a) of the gas control apparatus (4) for the gas burner (2), consists of a housing (14), which has at least two chambers connected to each other, which are separated gas-tight by a membrane (16) connected on one side to an electrically conductive component (15), wherein: the chamber A (17) is connected to the gas outlet (7a) of the gas control apparatus (4); the membrane (16), to which the gas pressure of the gas burner (2) is applied through an opening (18) in the chamber A (17) when the gas valve is open, produces a stroke; by means of the stroke, the chamber B (19), in which the side of the membrane (16) having the connected electrically conductive component (15) is positioned, closes a circuit (20) via contact elements (10) led outward and suitably (12) indicates the operating status. The device for indicating the status of a gas burner can be used in the case of gas-operated heating apparatuses having gas control apparatuses having a liquid-filled temperature controller.

A pressure switch system provides a safety mechanism for equipment at a well site environment to prevent the opening or release of certain components when an unsafe condition exists. A pressure switch assembly of the system includes a diaphragm that transitions to an extended position as pressure of a pressurized fluid is flowed through a fluid pathway of the assembly. The diaphragm couples to a pin that transitions along with a dart based on the pressure at the diaphragm. When pressure reaches or exceeds a threshold, the dart is transitioned to a location proximate to a sensor. The sensor triggers actuation of a switch to prevent release or opening of a remote connector of a hydraulics unit until the pressure is at or falls below the threshold. The threshold is set to a pressure based on the unsafe condition.

A pressure switch system provides a safety mechanism for equipment at a well site environment to prevent the opening or release of certain components when an unsafe condition exists. A pressure switch assembly of the system includes a diaphragm that transitions to an extended position as pressure of a pressurized fluid is flowed through a fluid pathway of the assembly. The diaphragm couples to a pin that transitions along with a dart based on the pressure at the diaphragm. When pressure reaches or exceeds a threshold, the dart is transitioned to a location proximate to a sensor. The sensor triggers actuation of a switch to prevent release or opening of a remote connector of a hydraulics unit until the pressure is at or falls below the threshold. The threshold is set to a pressure based on the unsafe condition.

A tactile switch on a mobile electronic device having a housing is provided. The tactile switch is comprised of a pressure sensitive interface on an exterior portion of the housing, a switch mechanism, and at least one pathway coupled to the pressure sensitive interface and extending from the pressure sensitive interface to the switch mechanism. The switch mechanism is at a remote location from the pressure sensitive interface. The pathway is formed in an interior portion of the housing. The tactile switch further includes a viscous fluid substantially filling the pathway. The tactile switch is configured such that when pressure is applied to the pressure sensitive interface, the viscous fluid exerts pressure on the switch mechanism, causing the switch to make an electrical contact.

A tactile switch on a mobile electronic device having a housing is provided. The tactile switch is comprised of a pressure sensitive interface on an exterior portion of the housing, a switch mechanism, and at least one pathway coupled to the pressure sensitive interface and extending from the pressure sensitive interface to the switch mechanism. The switch mechanism is at a remote location from the pressure sensitive interface. The pathway is formed in an interior portion of the housing. The tactile switch further includes a viscous fluid substantially filling the pathway. The tactile switch is configured such that when pressure is applied to the pressure sensitive interface, the viscous fluid exerts pressure on the switch mechanism, causing the switch to make an electrical contact.

A pressure switch is provided which enables an increased pressure tightness. A pressure switch comprises a diaphragm, a cap to define a storage space for pressure fluid, a plate-shaped stopper configured to limit a position of the diaphragm in the event of pressure variation to define a working position, a coupling section for coupling outer circumferences of the diaphragm, the cap and the stopper to form a diaphragm unit, a ring-shaped member formed with a substantially same diameter as the diaphragm unit, a switch element, and a body (a tubular section of a joint section and a switch holding tube) configured to accommodate the ring-shaped member and the diaphragm unit while clamping an outer circumference section of the diaphragm unit together with the ring-shaped member so that the ring-shaped member comes into pressure contact with the outer circumference section.

A pressure switch is provided which enables an increased pressure tightness. A pressure switch comprises a diaphragm, a cap to define a storage space for pressure fluid, a plate-shaped stopper configured to limit a position of the diaphragm in the event of pressure variation to define a working position, a coupling section for coupling outer circumferences of the diaphragm, the cap and the stopper to form a diaphragm unit, a ring-shaped member formed with a substantially same diameter as the diaphragm unit, a switch element, and a body (a tubular section of a joint section and a switch holding tube) configured to accommodate the ring-shaped member and the diaphragm unit while clamping an outer circumference section of the diaphragm unit together with the ring-shaped member so that the ring-shaped member comes into pressure contact with the outer circumference section.