Diffuser

Claim 2

A diffuser for diffusing a compound into a circulating air system in a closed area comprising a container having a closed end and an open end means comprising an inlet and outlet in the open end, to conduct air into and out of the container, means on the open end to fasten and hold the container in the system, a filter media in the container between the air inlet and outlet, an aerosol can containing the compound under pressure associated with the closed end, a spray nozzle on the aerosol can and within the container and surrounded by the filter media, the nozzle comprising a body and a cap, the body having a conical surface therein and the cap having a complementary conical surface thereon, the two conical surfaces fitting together, one of the conical surfaces having a plurality of shallow and narrow grooves therein, spray openings in the nozzle leading from each of the grooves between the body and cap when fitted together, the grooves and openings being of such small size as to cause the compound to be sprayed in the form of a mist or fog onto the filter media where it is diffused into the air stream passing through the filter media and carried into the system for emission into a closed area.

Claim 3

The diffuser as set forth in claim 1 wherein the body is provided with a passageway therein carrying the compound from a discharge tube on the aerosol can, a pin on the cap fitting into the passageway when cap and body are connected together, the passageway having an interior surface therein, the pin having an exterior surface thereon, the two surfaces being complemental to each other when the cap is connected to the body, one of the surfaces having a plurality of grooves therein leading to the grooves in the conical surfaces.

Claim 4

The diffuser as set forth in claim 1 wherein the grooves are in the body conical surface.

Claim 5

The diffuser as set forth in claim 1 wherein the grooves are on the cap conical surface.

Claim 6

The diffuser as set forth in claim 2 wherein the grooves are in the interior surface of the passageway.

Claim 7

The diffuser as set forth in claim 2 wherein the grooves are on the exterior surface of the pin.

Claim 8

The diffuser as set forth in claim 5 wherein the grooves are on the cap conical surface and in the interior surface of the passageway.

Claim 9

The diffuser as set forth in claim 6 wherein the grooves are in the body conical surface and on the exterior surface of the pin.

Claim 10

A diffuser for diffusing a compound into a circulating air system in a closed area, comprising a container adapted to be placed into the system, the container having a closed end and an open end, means comprising an inlet and outlet in the open end to conduct air into and out of the container, means on the open end to fasten and hold the container in the system, a pleated paper filter media in the container and mounted between the air inlet and outlet, a tube extending into the open end conducting air into the container, sealing means on the filter media surrounding the tube and sealing the same from the outlet, a tubular housing extending outwardly from the closed end, an aerosol can containing the compound under pressure and within the tubular housing, the aerosol can having a valve therein and a hollow tubular conduit leading from the valve for dispensing the compound from the can, a spray nozzle mounted on the tubular conduit and within the container and surrounded by the filtEr media, the nozzle comprising a body and a cap, the body being cylindrical in shape and having an outer wall and a passageway therethrough, a boss extending outwardly from the body at one end, the boss receiving the tubular conduit, the other end of the body having a conical surface therein, a plurality of shallow and narrow grooves in the conical surface, the apex of the conical surface being a continuation of the passageway, the passageway having a plain surface, the cap being of conical shape and having a pin extending beyond the apex thereof, the pin having an exterior surface complemental to the plain surface of the passageway and fitting thereinto by a press fit, the pin having a plurality of shallow and narrow grooves therein, the cap having an outer end, the outer end having a depression therein and a downwardly extending surface surrounding the depression, the body having a downwardly extending bevel surface between the upper end of the conical surface and the outer wall, the two bevel surfaces being of the same angularity with respect to the outer wall of the body, the conical surface of the body and the conical shape of the cap being complementary to each other when the cap is fully inserted in the body, the two bevel surfaces having adjacent edges where they meet, the grooves in the conical surface of the body opening between the adjacent edges, an operating means associated with the inlet tube and engaging the depression in the cap to operate the valve in the aerosol can, the valve when operated will allow the compound to enter the grooves of the spray nozzle and be broken into a fine mist or fog by the smallness of the grooves and be sprayed from the nozzle outlets in a fine mist or fog onto the filter media where the compound will be diffused into the circulating air passing through the filter media and be carried thereby into the enclosed area.

Claim 11

A diffuser for diffusing a compound into a circulating air system in a closed area, comprising a container adapted to be placed into the system, the container having a closed end and an open end, means comprising an inlet and outlet in the open end to conduct air into and out of the container, means on the open end to fasten and hold the container in the system, a pleated paper filter media in the container and mounted between the air inlet and outlet, a tube extending into the open end conducting air into the container, sealing means on the filter media surrounding the tube and sealing the same from the outlet, a tubular housing extending outwardly from the closed end, an aerosol can containing the compound under pressure and within the tubular housing, the aerosol can having a valve therein and a hollow tubular conduit leading from the valve for dispensing the compound from the can, a spray nozzle mounted on the tubular conduit and within the container and surrounded by the filtEr media, the nozzle comprising a body and a cap, the body being cylindrical in shape and having an outer wall and a passageway therethrough, a boss extending outwardly from the body at one end, the boss receiving the tubular conduit, the other end of the body having a conical surface therein, a plurality of shallow and narrow grooves in the conical surface, the apex of the conical surface being a continuation of the passageway, the passageway having a plain surface, the cap being of conical shape and having a pin extending beyond the apex thereof, the pin having an exterior surface complemental to the plain surface of the passageway and fitting thereinto by a press fit, the pin having a plurality of shallow and narrow grooves therein, the cap having an outer end, the outer end having a depression therein and a downwardly extending surface surrounding the depression, the body having a downwardly extending bevel surface between the upper end of the conical surface and the outer wall, the two bevel surfaces being of the same angularity with respect to the outer wall of the body, the conical surface of the body and the conical shape of the cap being complementary to each other when the cap is fully inserted in the body, the two bevel surfaces having adjacent edges where they meet, the grooves in the conical surface of the body opening between the adjacent edges, an operating means associated with the inlet tube and engaging the depression in the cap to operate the valve in the aerosol can, the valve when operated will allow the compound to enter the grooves of the spray nozzle and be broken into a fine mist or fog by the smallness of the grooves and be sprayed from the nozzle outlets in a fine mist or fog onto the filter media where the compound will be diffused into the circulating air passing through the filter media and be carried thereby into the enclosed area.

Claim 12

A diffuser for diffusing a compound into a circulating air system in a closed area, comprising a container adapted to be placed into the system, the container having a closed end and an open end, means comprising an inlet and outlet in the open end to conduct air into and out of the container, means on the open end to fasten and hold the container in the system, a pleated paper filter media in the container and mounted between the air inlet and outlet, a tube extending into the open end conducting air into the container, sealing means on the filter media surrounding the tube and sealing the same from the outlet, a tubular housing extending outwardly from the closed end, an aerosol can containing the compound under pressure within the tubular housing, the aerosol can having a valve therein and a hollow tubular conduit leading from the valve for dispensing the compound from the can, a spray nozzle mounted on the tubular conduit and within the container and surrounded by the filter media, the nozzle comprising a body and a cap, the body being cylindrical in shape and having an outer wall and a passageway therethrough, a boss extending outwardly from the body at one end, the boss receiving the tubular conduit, the other end of the body having a conical surface therein, the apex of the conical surface being a continuation of the passageway, the passageway having a plurality of grooves therein, the cap being of conical shape and having a pin extending beyond the apex of thereof, the surface of the cap having a plurality of shallow and narrow grooves therein, the pin having an exterior surface complemental to the plain surface of the passageway and fitting thereinto by a press fit, the cap having an outer end, the outer end having a depression therein and a downwardly extending bevel surface surrounding the depression, the body having a downwardly extending bevel surface between the upper end of the conical surface and the outer wall, the two bevel surfaces being of the same angularity with respect to the outer wall of the body, the conical surface of the body and the conical shape of the cap being complementaRy to each other when the cap is fully inserted in the body, the two bevel surfaces having adjacent edges where they meet, the grooves in the conical surface of the cap opening between adjacent edges, an operating means associated with the inlet tube and engaging the depression in the cap to operate the valve in the aerosol can, the valve when operated will allow the compound to enter the grooves of the spray nozzle and be broken into a fine mist or fog by the smallness of the grooves and be sprayed from the nozzle outlets in a fine mist or fog onto the filter media where the compound will be diffused into the circulating air passing through the filter media and be carried thereby into the enclosed area.

Claim 13

A diffuser for diffusing a compound into a circulating air system in a closed area, comprising a container adapted to be placed into the system, the container having a closed end and an open end, means comprising an inlet and outlet in the open end to conduct air into and out of the container, means on the open end to fasten and hold the container in the system, a pleated paper filter media in the container and mounted between the air inlet and outlet, a tube extending into the open end conducting air into the container, sealing means on the filter media surrounding the tube and sealing the same from the outlet, a tubular housing extending outwardly from the closed end, an aerosol can containing the compound under pressure within the tubular housing, the aerosol can having a valve therein and a hollow tubular conduit leading from the valve for dispensing the compound from the can, a spray nozzle mounted on the tubular conduit and within the container and surrounded by the filter media, the nozzle comprising a body and a cap, the body being cylindrical in shape and having an outer wall and a passageway therethrough, a boss extending outwardly from the body at one end, the boss receiving the tubular conduit, the other end of the body having a conical surface therein, the apex of the conical surface being a continuation of the passageway, the passageway having a plurality of grooves therein, the cap being of conical shape and having a pin extending beyond the apex of thereof, the surface of the cap having a plurality of shallow and narrow grooves therein, the pin having an exterior surface complemental to the plain surface of the passageway and fitting thereinto by a press fit, the cap having an outer end, the outer end having a depression therein and a downwardly extending bevel surface surrounding the depression, the body having a downwardly extending bevel surface between the upper end of the conical surface and the outer wall, the two bevel surfaces being of the same angularity with respect to the outer wall of the body, the conical surface of the body and the conical shape of the cap being complementaRy to each other when the cap is fully inserted in the body, the two bevel surfaces having adjacent edges where they meet, the grooves in the conical surface of the cap opening between adjacent edges, an operating means associated with the inlet tube and engaging the depression in the cap to operate the valve in the aerosol can, the valve when operated will allow the compound to enter the grooves of the spray nozzle and be broken into a fine mist or fog by the smallness of the grooves and be sprayed from the nozzle outlets in a fine mist or fog onto the filter media where the compound will be diffused into the circulating air passing through the filter media and be carried thereby into the enclosed area.