A fume cupboard, of the type comprising a framework with two front uprights (2a,2b), two rear uprights (3a,3b), a rear panel (11), two side panels (6,7), an upper panel (8) and a sash (4) consisting of a frame (12) and at least one panel (13) for closing an inner chamber (10) of said fume cupboard (1). The fume cupboard of the invention comprises a transmission system (14) for transmission of the vertical movements of said sash (4) located inside the abovementioned front uprights (2a,2b), or inside said front uprights (2a,2b) and said rear uprights (3a,3b).

A novel front sash closure for a fumehood of the sort comprising a workspace defined by a frame and accessed by a front opening, the front sash closure comprising: a transparent fixed pane and a transparent hinged pane; wherein the transparent fixed pane is securely mounted to the frame of the fumehood so as to partially cover the front opening of the fumehood, whereby to reduce the size of the front opening of the fumehood to a working opening; and wherein the transparent hinged pane is hingedly mounted to the frame of the fumehood intermediate the working opening so as to be able to selectively cover a portion of the working opening.

A novel front sash closure for a fumehood of the sort comprising a workspace defined by a frame and accessed by a front opening, the front sash closure comprising: a transparent fixed pane and a transparent hinged pane; wherein the transparent fixed pane is securely mounted to the frame of the fumehood so as to partially cover the front opening of the fumehood, whereby to reduce the size of the front opening of the fumehood to a working opening; and wherein the transparent hinged pane is hingedly mounted to the frame of the fumehood intermediate the working opening so as to be able to selectively cover a portion of the working opening.

A tool cabinet includes a cabinet body, a plurality of storage members, an input device, and an output device. The cabinet body has first and second openings. The input device includes a cord winder and a power cord. The power cord has a plug portion exposed from the first opening, and a cord portion connected between the cord winder and the plug portion. At least a portion of the cord portion is pulled out of the first opening when the plug portion is moved to a non-retracted position. The cord winder includes a resilient member for biasing the plug portion toward a retracted position. The output device includes a power strip electrically connected to the power cord, and having a plurality of sockets that is exposed from the second opening.

An enclosure for using a tile saw is described. The enclosure comprises a rectangular tray having a front, a rear, and two side walls and a bottom surface wherein the bottom surface is inclined from a first height adjacent to the front wall to a second height away form said front wall wherein the second height is lower with respect to top surfaces of the front, rear, and side walls than the first height wherein the tray is configured to have a tile saw used therein. Two side panels, a rear panel, and a top panel are configured to be joined together to form a waterproof box on three sides and top of the tray so that water used to cool a tile saw blade is not sprayed outside of the waterproof box.

The invention relates to a downdraft table (1) having a workpiece holder (2) for a workpiece to be held, wherein the workpiece holder (2) is configured in a stationary manner, wherein a suction-extraction device (3) is arranged beneath and/or next to the workpiece holder (2), said suction-extraction device (3) being used to discharge particles and/or gases downward in a waste air flow, wherein the suction-extraction device (3) is arranged around the workpiece holder (2) with respect to the latter and is configured to be rotatable about the workpiece holder (2).

The invention relates to a downdraft table (1) having a workpiece holder (2) for a workpiece to be held, wherein the workpiece holder (2) is configured in a stationary manner, wherein a suction-extraction device (3) is arranged beneath and/or next to the workpiece holder (2), said suction-extraction device (3) being used to discharge particles and/or gases downward in a waste air flow, wherein the suction-extraction device (3) is arranged around the workpiece holder (2) with respect to the latter and is configured to be rotatable about the workpiece holder (2).

The invention relates to a safety workbench (1) having a work space (3) surrounded by a housing (2) having a work opening (6) located in the housing front side (4) and adjustable with an adjustable front panel (5) for admitting into the work space (3) an air inlet flow (7), an exhaust blower (8) and a circulating air blower (9) for conveying an air flow (10) in the safety workbench (1), which are designed such that a partial air flow drawn in by the exhaust blower (8) is filtered through an exhaust air filter (11) as exhaust air flow (12) from the safety workbench (1) and a partial air flow drawn in by the circulating air blower (9) through a circulating air filter (13) as downwardly directed circulating air flow (14) into the work space (3), and a control device (15), a differential pressure sensor (16) and two pressure transducers (17, 18) connected thereto which are designed to measure a pressure at two different positions within the safety workbench d, wherein a first of the pressure sensors (17) is arranged in the immediate vicinity of the fan blades (90) on the low pressure side (91) of the circulating air blower (9) and a second of the pressure sensors (18) is arranged in a low-flow area, (20) on the low pressure side (91) of the circulating air blower (9). The invention further relates to a method of operating a safety workbench according to any of the preceding claims, comprising the steps of: a) determining a pressure difference between the first pressure transducer (17) and the second pressure transducer (18) by means of the differential pressure sensor (16), b1) comparing the pressure difference determined in a) with a nominal pressure difference stored in the control device (15), which corresponds to a nominal volume flow, or b2) converting the pressure difference measured in a) into an associated volume flow and comparing the calculated volume flow with one nominal volume flow stored in the control device (15), and c) regulating the circulating air blower (9) such that the nominal volume flow is conveyed.

The invention relates to a safety workbench (1) having a work space (3) surrounded by a housing (2) having a work opening (6) located in the housing front side (4) and adjustable with an adjustable front panel (5) for admitting into the work space (3) an air inlet flow (7), an exhaust blower (8) and a circulating air blower (9) for conveying an air flow (10) in the safety workbench (1), which are designed such that a partial air flow drawn in by the exhaust blower (8) is filtered through an exhaust air filter (11) as exhaust air flow (12) from the safety workbench (1) and a partial air flow drawn in by the circulating air blower (9) through a circulating air filter (13) as downwardly directed circulating air flow (14) into the work space (3), and a control device (15), a differential pressure sensor (16) and two pressure transducers (17, 18) connected thereto which are designed to measure a pressure at two different positions within the safety workbench d, wherein a first of the pressure sensors (17) is arranged in the immediate vicinity of the fan blades (90) on the low pressure side (91) of the circulating air blower (9) and a second of the pressure sensors (18) is arranged in a low-flow area, (20) on the low pressure side (91) of the circulating air blower (9). The invention further relates to a method of operating a safety workbench according to any of the preceding claims, comprising the steps of: a) determining a pressure difference between the first pressure transducer (17) and the second pressure transducer (18) by means of the differential pressure sensor (16), b1) comparing the pressure difference determined in a) with a nominal pressure difference stored in the control device (15), which corresponds to a nominal volume flow, or b2) converting the pressure difference measured in a) into an associated volume flow and comparing the calculated volume flow with one nominal volume flow stored in the control device (15), and c) regulating the circulating air blower (9) such that the nominal volume flow is conveyed.

A fume hood comprising: a hood, a work chamber, and a front wall formed with an opening toward an indoor environment; an air supply system, and an air exhaust system to discharge air that enters the work chamber through a front opening and enters the work chamber through the air supply system, out from the work chamber; the air supply system provided with at least one air supply outlet in an upper portion and a lower portion of the hood, and the air supply outlet supplying air towards the work chamber. The fume hood can reduce energy consumption of air conditioning and suppress overflowing of harmful substances in the work chamber, with a low installation cost and a high consistency of product quality.