Adjustable cartridge filter for cartridge ventilator
AssigneeGemini Steel, Inc.
InventorJeffrey S. Lambertson
Life of this patent
Estimating the term…
Abstract
An adjustable cartridge filter for use in a cartridge ventilator hood comprises a filter housing including a front wall having a front wall opening and a back wall spaced from the front wall and having a back wall opening. A flow diverter is disposed obstructively at the back wall opening and extends between the front wall and the back wall, causing a flow restriction between the front wall opening and the back wall opening. The flow diverter is adjustable with respect to the front wall and back wall to change the amounts of the resistance generated by the cartridge and the size of the air passage through the cartridge filter. A rear choke portion may be placed about the housing to be adjustably spaced from the back wall and back wall opening to further control flow resistance.
Claims23
An adjustable cartridge filter for use in a cartridge ventilator, the cartridge filter comprising:
- a filter housing including a front wall having a front wall opening and a back wall coupled to and spaced from the front wall and having a back wall opening;
- and
- a flow diverter disposed obstructively at the back wall opening and being adjustably supported by the housing to move relative to the back wall and front wall, the flow diverter having a front diverter portion spaced from the front wall to define an adjustable front diverted spacing, the flow diverter having a rear choke portion coupled to the front diverter portion and blocking a portion of the back wall opening to define an adjustable rear diverted spacing equal to a remaining portion of the back wall opening not blocked by the rear choke portion.
An adjustable cartridge filter for use in a cartridge ventilator, the cartridge filter comprising:
- a front wall having a front wall opening;
- a back wall coupled to and spaced from the front wall by a wall spacing and having a back wall opening with a boundary;
- a flow diverter and choke including a wall spacing adjustment portion coupled with a back wall opening adjustment portion;
- and
- means for movably coupling the flow diverter to the back wall to adjust the wall spacing adjustment portion relative to the front wall to change the size of the wall spacing and to adjust the back wall opening adjustment portion relative to the boundary of the back wall opening to change the size of the back wall opening.
A cartridge ventilator comprising:
- a ventilator hood;
- a cartridge filter housed in the ventilator hood, the cartridge filter comprising a filter housing including a front wall having a front wall opening and a back wall coupled to and spaced from the front wall and having a back wall opening, the cartridge filter further comprising a flow diverter disposed obstructively at the back wall opening and having a front diverter portion spaced from the front wall to define a front diverted spacing, the flow diverter having a rear choke portion coupled to the front diverter and blocking a portion of the back wall opening to define a rear diverted spacing equal to a remaining portion of the back wall opening not blocked by the rear choke portion;
- and
- a rear choke portion coupled to the ventilation hood and obstructively spaced from the rear diverted spacing.
Dependencies are inferred from the claim text.