Abstract: Systems, apparatus, articles of manufacture, and methods to detect and respond to drive belt failures in vertically translating doors are disclosed. An example apparatus comprising: a bracket mountable adjacent to a drive belt of a vertically translating door, and a roller to be coupled to the bracket in a position to be in contact with the drive belt. The roller pivots about a first axis relative to the bracket. The roller rotates about a second axis relative to the bracket as the drive belt moves against the roller. The example apparatus further includes a sensor to sense movement of the roller about the first axis in response to a loss of tension in the drive belt.

Abstract: Methods and apparatus to operate powered doors are disclosed. A door system includes a panel, and a track including a first track wall and a second track wall opposite the first track wall. The first and second track walls define a channel therebetween. A lateral edge of the panel is to move along the channel as the panel moves between a closed position and an open position. The door system further includes a first refeed block to be aligned with the first track wall. The first refeed block is to extend a first distance above the first track wall. The door system also includes a second refeed block to be aligned with the second track wall. The second refeed block is to extend a second distance above the second track wall. The first distance greater than the second distance.

Abstract: Electrostatic dust collector comprising a first (1) and a second electrode (2), a voltage source (3) for applying a voltage between the two electrodes (1, 2), and a connection to ground (2a) is provided. The first electrode (1) and the second electrode (2) form a dust collection device, the first electrode (1) being positively charged and the second electrode (2) being negatively charged.

Abstract: Electrostatic dust collector comprising a first (1) and a second electrode (2), a voltage source (3) for applying a voltage between the two electrodes (1, 2), and a connection to ground (2a) is provided. The first electrode (1) and the second electrode (2) form a dust collection device, the first electrode (1) being positively charged and the second electrode (2) being negatively charged.

Abstract: During a method of evaluating a dosing operation, carried out by means of a dosing pump, for dosing a liquid medium in a vessel, filled at least partially with a gas, a pressure profile of the gas, present in the vessel, is detected at least periodically during the dosing operation. This pressure profile is compared with a desired value profile, prescribed for a control unit of the dosing pump, of the pump rate or pump output defining the dosing operation, and an evaluation result is issued in dependence on the comparison. In such case, the dosing operation is evaluated to be faulty or in need of correction when it is determined that the detected pressure profile over time with the prescribed pump rate or prescribed pump output lies outside a desired value range. A plurality of error conditions for the evaluation of the dosing operation are used, which consider the pressure development in a time window after a prescribed change in the defining pump rate or pump output.

Abstract: During a method of evaluating a dosing operation, carried out by means of a dosing pump, for dosing a liquid medium in a vessel, filled at least partially with a gas, a pressure profile of the gas, present in the vessel, is detected at least periodically during the dosing operation. This pressure profile is compared with a desired value profile, prescribed for a control unit of the dosing pump, of the pump rate or pump output defining the dosing operation, and an evaluation result is issued in dependence on the comparison. In such case, the dosing operation is evaluated to be faulty or in need of correction when it is determined that the detected pressure profile over time with the prescribed pump rate or prescribed pump output lies outside a desired value range. A plurality of error conditions for the evaluation of the dosing operation are used, which consider the pressure development in a time window after a prescribed change in the defining pump rate or pump output.