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US 6,290,740 B1Granted
Large size clean air workstation
AssigneeSportsman Corporation
InventorRichard F. Schaefer
Life of this patent
Estimating the term…
Abstract
A workbench suited for welding, grinding, and polishing operations features a multi-panel table top. The panels each have a high number of perforations to allow a high rate of air flow at a relatively low noise level. An optional backwall or a booth can be mounted atop the tabletop. Each also has perforations to collect dust from the air flow.
Claims22
A workbench for providing clean air in a workplace, said workbench comprising:
- a workbench top supported by a left side panel, a right side panel and a back panel;
- a vacuum chamber defined by said left and right side panels, said back panel, and a front panel;
- said workbench top having a plurality of openings of equal to or less than 0.5 square inch each;
- said openings forming a density of at least 100 openings per square foot on the workbench top;
- and
- said vacuum chamber suited to receive a blower and filter combination connected to said vacuum chamber to remove air from the vacuum chamber via the openings, thereby producing a low noise level of less than 75 dB at about 100-300 CFM per square foot.
3 more elements
A self-contained air cleaning workbench comprising:
- a U-shaped support base having sides and a back member;
- a vacuum chamber defined by a front panel and the U-shaped support base;
- a workbench top having a plurality of openings, each opening having an area of equal to or less than 0.5 square inch;
- said plurality of openings having a density of at least 100 openings per square foot;
- and
- said vacuum chamber suited to receive a blower and filter combination evacuating the vacuum chamber to provide a low noise level of under 75 dB at about 100-300 CFM per square foot.
3 more elements
A workbench comprising:
- a support chassis supporting a workbench top that forms a vacuum chamber;
- said workbench top having a plurality of small ventilation opening means functioning to prevent tools from falling therein and to allow air to pass through the opening means at about 100-300 CFM per square foot at a low noise level, wherein said vacuum chamber is evacuated by a blower.
Dependencies are inferred from the claim text.