A system includes a fume collection system that collects fumes from a welding operation, multiple data sources that detect operational data of the fume collection system and/or of the welding operation indicative of at least two of arc on time, operator factor, electrode feed speed, electrode size, and electrode type, an analysis system that analyzes the operational data and estimates fume data indicative of amount and content of the fumes, and a reporting system configured to populate at least one user viewable electronic report based upon the fume data.

A lockable friction joint includes a first joint member with a first arm member and a second joint member with a second arm member, the first and second joint members each having an inner friction surface and pivotal connecting projections. A friction adjustment device includes an adjustment element on an outer surface of the second joint member, and a fixating element on an outer surface of the first joint member. A plurality of friction discs are adjacent each other and between the inner friction surfaces of the first and second joint members, whereby friction between the friction discs is adjusted by the adjustment element. Each friction disc has at least one friction surface acting on an adjacent friction surface of another element of the friction joint and each friction disc is pivotally coupled to at least one other element of the friction joint.

A fume decontamination system connected to any combustion system which comprises seven devices interconnected sequentially in the following manner: an extraction device (A) is first connected to the combustion system and then connected by the other end to a guiding device (B) which, in turn, is connected to a cooling device (C). Once cooled, the combustion gases are channeled to a suction device (D) in which the gases are driven under pressure to an induction device (E) which, in turn, concentrates the gases and directs same to the injection plenum (F), the concentrated, cooled gases being distributed at constant volumes to the entire biological plant filtering device (G) and its decontamination procedure, as shown in FIG. 2/13.

An apparatus for the generative production of a three-dimensional object by successive, selective layer-by-layer solidification of construction material layers of a solidifiable construction material by means of at least one energy beam, comprising at least one device for generating at least one energy beam for selective layer-by-layer solidification of individual construction material layers of a solidifiable construction material, wherein the device is configured to generate an energy beam directed directly onto a construction plane, and an exhaust device which is configured to exhaust non-solidified construction material detached from the construction plane during processing and/or process gases arising during processing, wherein the exhaust device comprises at least one exhaust element through which a suction flow may or does flow, wherein at least one passage opening is formed in the at least one exhaust element for passage of an energy beam generated by the device and directed directly onto the construction plane.

The invention relates to a processing machine having a suction device, and a method. Such a processing machine can be used to machine workpieces made of wood, wood materials or the like, as is the case in the furniture or components industry, for example.

Systems for controlling an exhaust gas fan system. The control system may control one or more components of the exhaust system to optimize system performance and improve energy efficiency. The control system may be designed to maintain a substantially constant pressure in the exhaust header and provide a substantially constant flow through the exhaust fans. The control system is configured to control one or more of: modulation of one or more by-pass dampers; adjustment of the nozzle outlet area; varying the speed of the fans; the number and staging of fans.

A lighting system with vacuum intake is provided, having a lighting structure including at least one light-emitting element dimensioned to illuminate a region, and a lighting support structure extending at a first end thereof from the lighting structure and enabling repositioning of the lighting structure relative to a second end of the lighting support structure. The lighting support structure hays an air conduit extending therealong and connectable or connected towards the second end of the lighting support structure to a vacuum system, the air conduit being in fluid communication with a vacuum intake positioned towards the lighting structure.

A vent hood kit comprises a canopy assembly having an intake end and an outlet end, a blower housing selectively and alternatively coupled with the exhaust end of the canopy assembly in an in-line position and an external position, a blower assembly disposed within a blower housing and in communication with the intake end in both the in-line and external positions and an exhaust duct adapter of the blower housing is configured to be in communication with the intake end in both the in-line and external positions.

Laboratory ventilation is integrated. The HVAC room controller requests changes in the exhaust set point of one or more fume hoods. By allowing the fume hoods to respond to such HVAC requests, the fume hood exhaust may be turned down to a point below the highest level that could be needed. The request may be used to turn the fume hood exhaust back up, so greater energy savings may be possible in non-peak demand operation of the HVAC system.

An apparatus and methods of mixing materials in a silo that includes a mixing chamber (2) with an outlet (23) the bottom and an inlet hose (4) connected to an inlet opening at the top; a sieve (16) at the top of the mixing chamber above the inlet opening and below the outlet opening to prevent contact between a particulate mixing material and the top of the mixing chamber and to allow dust through; a pump system (18) to create a negative pressure region at the top of the mixing chamber; and an air manifold assembly (8), which includes an air pressure manifold (10) having an air nozzle (12) to introduce an air stream into the mixing chamber and an air manifold cover (14) to prevent contact between the particulate mixing material and the air pressure manifold, and to allow a particulate mixed product material to pass to the mixing chamber outlet.