With the use of low cost microphones mounted near each nozzle, sound signatures of the nozzles may be captured and compared to a baseline calibration measurement corresponding to a substantially new nozzle to determine if the nozzle is worn out. Sound signatures may be periodically captured and compared to the baseline calibration measurement to provide a continuous indicator of wear out for each nozzle. The invention has the advantage of being relatively low cost with ceramic microphones, for example, and with little or no moving parts required.

An orifice for a high-pressure waterjet cutter includes a first surface defining an inlet plane, a second surface defining an outlet plane, and an inner bore aligned along a flow axis and extending from the first surface to the second surface. The orifice also includes a first layer of polycrystalline diamond extending from the first surface to a plane between the inlet plane and the outlet plane, and a second, separate layer of polycrystalline diamond extending from the plane to the second surface. The first layer and the second layer are coupled to one another to define a single component. The second layer has material properties different than the first layer.

An application system component is provided in the form of a changeable application member such as a nozzle or a bell cup. The application system component includes a transponder for storing component data, from which the component data is readable, and a wear detection device for monitoring of the application system component. The wear detection device includes a wear mark and an optical detector.

A system includes a manual tool data system having a manual tool data monitoring system configured to monitor one or more manual tools, a manual tool data acquisition system configured to acquire data corresponding to one or more operational parameters of the one or more manual tools, a manual tool data analysis system configured to analyze the data acquired by the manual tool data acquisition system, and a manual tool messaging system configured to generate messages based on the data analyzed by the manual tool data analysis system.

An atomiser is for use in a showerhead or tap for dispensing a liquid, in particular water or a water-based mixture, includes a set of at least two nozzles arranged to create colliding jets of the liquid and thereby create a spray of droplets of the liquid, and a spray shaper for guiding the spray. The atomiser has a nozzle element with the nozzles, and a spray shaper, the nozzle element and spray shaper being separate parts.

A method of generating a building assembly that includes spraying a coating material onto a plurality of pieces of substrate disposed on a first assembly face. The spraying includes spraying the coating material onto the plurality of pieces of substrate via a sprayer configured to apply the coating material to a target surface via a nozzle coupled with a mobile storage container storing the coating material, the coating material impregnating voids of the substrate. The method also includes allowing the coating material impregnating the voids to dry and harden and become rigid to generate the building assembly.

Various sprinkler head protective case devices are disclosed. These devices provide substantial physical protection to sprinkler heads from accidental damage and/or activation thereof during temporary periods of construction and maintenance. The devices include fire and heat resistant shells that selectively close to surround the sprinkler head and open to permit removal therefrom. Cushioning pads are provided for more stable assemblies, and the shells can be locked into place so that the protective case devices do not accidentally become dislodged.

Various sprinkler head protective case devices are disclosed. These devices provide substantial physical protection to sprinkler heads from accidental damage and/or activation thereof during temporary periods of construction and maintenance. The devices include fire and heat resistant shells that selectively close to surround the sprinkler head and open to permit removal therefrom. Cushioning pads are provided for more stable assemblies, and the shells can be locked into place so that the protective case devices do not accidentally become dislodged.

A valve seat assembly including a housing having a cavity and a puck located in the cavity and connected to the housing. The puck having a greater hardness than the housing.

A valve seat assembly including a housing having a cavity and a puck located in the cavity and connected to the housing. The puck having a greater hardness than the housing.