Abstract: An apparatus and method for an air filter media and frame having structural support members, including a tensile support member.

Abstract: An apparatus and method for a tactile air filter including a filter media composed primarily of glass fibers having a softening finish applied thereto.

Abstract: A filter apparatus including a housing having a discharge apparatus for removing granular gas treating material from the hopper of the housing. The discharge apparatus includes a baffle plate extending across the hopper between the side walls of the housing which defines a material discharge channel opening into the interior of the hopper through a pair of parallel slots extending along the edges of the baffle plate, a conveying gas inlet aperture in one of the side walls opening into one end of the conveying channel, and a gas treating and conveying gas outlet aperture in the other side wall opening into the other end of the conveying channel of a larger cross-sectional area than the conveying gas inlet aperture to promote progressive aspiration of the treating material from the interior of the hopper commencing at the end of the channel proximate the conveying gas inlet aperture.

Abstract: A gauge for measuring the pitch diameter of a variable speed V-belt pulley including a body member which can be engaged on the rim of the pulley, a sliding gauge bar carried by the member projecting into the groove of the pulley to engage the tapered walls of the groove of the pulley, and a scale on the gauge bar readable against indicia on the member to express the pitch diameter of the pulley.

Abstract: A filter apparatus includes a filter housing having a gas treating enclosure portion and a hopper portion disposed below and open to the gas treating enclosure portion. The gas treating enclosure portion encloses a plurality of spaced apart filter cells which are to be filled with granulated gas treating material. The filter cells have open bottoms open to the hopper portion. A gas treating material conveying channel is disposed within and extends across the hopper portion of the housing proximate the bottom thereof. The interior of the channel is open to the interior of the hopper portion only intermittently along the longitudinal sides of the channel. Further, a conveying gas inlet aperture is formed through one wall of the hopper portion opening into the channel at one of its ends, and a gas treating material and conveying gas outlet aperture is formed through the opposite wall of the hopper portion opening into the channel at the other of its ends.

Abstract: A pocket filter cartridge having a plurality of side-by-side filter assemblies secured to a common mounting frame adapted to be secured across a dirty gas stream in a gas duct. Each of the filter assemblies includes a sheath-like filter bag suspended from an apertured header plate which is secured to the mounting frame in an overlapping fashion with its adjacent mounting plates to form a common header for all of the filters in the cartridge.

Abstract: A forced air heater for heating a venting air stream including an outer casing, a fan for forcing the venting air stream through the casing, a combustion drum providing a combustion chamber for a burner supported within the casing, a flue gas header spaced downstream from the drum connected in separate fluid communication with the combustion chamber to accommodate evacuation of combustion gases from the chamber through the header, a passage for the venting air stream extending through the casing in heat transfer relation with the drum and header, and a plurality of vanes secured within the casing adapted to circulate a predetermined portion of the venting air stream between said drum and header.

Abstract: A gas damper for regulating the mass flow of a stream of purging air as it is directed into an electrostatic precipitator including a generally cylindrical housing having a floating piston positioned in metering relationship to the discharge outlet of the housing by the buoyant force of the air flowing through the housing.

Abstract: A filter anchoring arrangement for securing the dependent ends of a row of filter bags suspended from a common filter supporting plate in a bag house. The anchoring arrangement includes a gathering member and a retaining member cooperating with the gathering member to align and retain a docking pin projecting from the dependent end of each bag upon rotation of the gathering and retaining members into a bag-anchoring position.

Abstract: A filter material charging apparatus for adding a gas treating material into gas treating cells contained in a filter housing includes an open bottomed gas treating material conveying channel and air evacuation conduits located in the filter housing over the gas treating cells. Air-borne filter material is delivered to the conveying channel from a source outside the filter housing. Baffles are located in the channel to distribute gas treating material over the length and breadth of the filter housing, and into the gas treating cells as the gas treating material exits the channel through its open bottom. The air which carried the filter material into the housing is evacuated from the interior of the filter housing by the air evacuating conduit.

Abstract: A pocket filter cartridge including at least one sheath-like filter bag which is suspended from a mounting sleeve affixed to an apertured header plate disposed across a dirty gas stream by a retaining collar holding it in press-fit clamping relation to the mounting member.

Abstract: A hand brake for a wheeled vehicle comprises an operating shaft carried within a sleeve affixed to the frame of the vehicle to accommodate axial displacement and rotation of the shaft attendant to shifting the brake between respective braking and non-braking positions. A locking lug on the shaft is adapted to engage and secure a receiving member mounted on one of the vehicle wheels upon rotational and axial movement of the shaft into the braking position, and stops on the shaft cooperative with the sleeve to releasably secure the shaft in the respective braking and non-braking positions.

Abstract: A filter bag support member for fastening a filter bag to an apertured bag header plate member disposed between the dirty gas inlet and the clean gas outlet of a filter bag housing comprising a flow-through venturi-like tube having one end releasably fastened to the plate member and a clamp at the other end receiving the filter bag in supporting sealed relation.

Abstract: A gas filter comprising a square frame and an interchangeable filter package containing a filter web of a folded zig-zag configuration forming a plurality of proximate filter pockets received on a support grid mounted on the frame and having a shape complementary to the folds of the filter web.

Abstract: A filter arrangement including a venturi element carried within a tubular filter by a flexible attachment ring at one end of the filter removably securing the filter in the aperture of an apertured plate member in a gas filtration system. The outermost diameter of the venturi element is slightly less than the diameter of the aperture to accommodate withdrawal of the venturi element from either side of the plate attendant to installation and removal of the filter arrangement.

Abstract: A filtering device for removing particulate matter from a gas stream includes a housing with its interior divided by a horizontal partition into an upper plenum chamber and a lower plenum chamber. Planar panel filters arranged in V-shaped banks are suspended from the horizontal partition in the lower plenum chamber. These banks of panel filters coact with the horizontal partition to form a cleaned gas compartment. The housing also has a dirty gas stream inlet to the lower plenum chamber and a clean gas outlet from the upper plenum chamber. A first venturi is located at the horizontal partition and provides a passage for a gas between the cleaned gas compartment and upper plenum chamber, and a second smaller converging nozzle located in the upper plenum chamber coaxially aligned with and spaced from the first venturi. A high energy cleaning gas emitting nozzle is spaced above the second venturi and aligned to direct a jet of high energy cleaning gas axially into the second converging nozzle.

Abstract: A clamping device for removably clamping a unit filter cell in position in a gas flow-through housing against a stationary gas flow-through frame structure includes a filter cell support tray selectively movable toward and away from the gas flow-through frame structure, thus, moving a unit filter cell supported on the tray into and out of contact, respectively, with the flow-through frame structure. The tray is moved through a plurality of pivotable levers which are each pivotably attached at one end to a stationary support and connected between its ends to the filter cell support tray. The levers are caused to pivot by means of bars which are connected to the other ends of the lever and are themselves mounted for selective linear movement along their longitudinal axes. Biasing means structurally associated with the pivotable levers cause a uniform clamping force to be applied by the filter support tray forcing the unit filter cell against the stationary support frame.

Abstract: A filter housing having one or more flow-through media support members releasably secured in the housing between the dirty gas inlet and the clean gas outlet to divide the housing into a dirty gas chamber and a clean gas chamber.

Abstract: A gas separation device has peripheral flow-through frame with a sheet of gas separation filter media disposed across the frame and attached to the frame for filtering a gas stream passing through the filter media. As an aid in installing and removing the gas separation device from an installation, one advantageous embodiment has a handle centrally disposed of and attached to the filter media and projecting from one face of the filter media while another advantageous embodiment has two handles centrally disposed of and attached to the filter media and projecting from opposite faces of the filter media.

Abstract: A filter installation for a filter housing including a header plate having an aperture of a predetermined diameter, a tubular filter, a venturi-like member extending through the aperture into one end of the filter, an annular shoulder on said member having an outermost diameter at least substantially the same as the diameter of the plate aperture, and a collar having an interior diameter less than the outermost diameter of the shoulder and surrounding the filter, said collar being releasably secured to the plate and retaining a portion of the filter between the plate and the collar to secure the filter to the plate.