Disposable aquarium filter

Claim 2

A DISPOSABLE AQUARIUM FILTER COMPRISING THE COMBINATION OF: A FIRST TUBE ADAPTED TO BE CONNECTED TO AN AIR SUPPLY SOURCE, A SECOND TUBE OF LARGER DIAMETER THAN SAID FIRST TUBE, THE LOWER ENDS OF SAID FIRST AND SECOND TUBE BEING ABOUT COTERMINUS, THE LOWER PORTIONS OF SAID SECOND TUBE HAVING FLUID PASSAGEWAYS THERETHROUGH, A FIRST CONTINUOUS LAYER OF FILTER MATERIAL WOUND ABOUT AND ENCIRCLING THE LOWER PORTIONS OF SAID FIRST AND SECOND TUBES, A SECOND CONTINUOUS LAYER OF FILTER MATERIAL WOUND ABOUT AND ENCIRCLING SAID FIRST LAYER OF FILTER MATERIAL AND SAID TUBES, GRANULES OF A CHEMICAL PURIFIER AT THE INTERFACE BETWEEN SAID FIRST AND SECOND LAYERS OF FILTER MATERIALS, AND AN OUTER CONTINUOUS LAYER OF OPEN MESH MATERIAL WOUND ABOUT AND ENCIRCLING SAID SECOND LAYER OF FILTER MATERIAL, SAID FLUID PASSAGEWAYS BEING FORMED BY EXTENDING, DISPLACED TUBE WALL PORTIONS OF SAID SECOND TUBE WHICH PROTRUDE INTO SAID FIRST CONTINUOUS LAYER OF FILTER MATERIAL TO FORM A MECHANICAL CONNECTION THEREBETWEEN.

Claim 3

A disposable aquarium filter comprising the combination of: a first tube adapted to be connected to an air supply source; a second tube of larger diameter than said first tube, the lower ends of said first and second tubes being about coterminus, the lower portions of said second tube having fluid passageways therethrough; a first layer of filter material tightly wound about and encircling the lower portions of said first and second tubes; a second layer of filter material loosely wound, relative to said first layer of filter material and encircling said first layer of filter material and said tubes; granules of charcoal at the interface between said first and second layers of filter material; and an outer layer of open mesh material encircling said second layer of filter material comprising fibers of a spun synthetic plastic, a laminate construction having varying densities and wherein each of said layers of filter material has a descreasing porosity from the outside of each of said layers inwardly of the exterior thereof, the terminal portions of said tubes terminating upwardly and angularly with respect to the longitudinal axis of said tubes, said fluid passageways in said second tube being formed by extending, displaced tube wall portions of said second tube, said displaced wall portions being angularly disposed with respect to the longitudinal axis of said second tube to form a plurality of extending securement means whereby said securement means protrude into said first layer of filter material to provide a mechanical attachment therefore.

Claim 4

A disposable aquarium filter comprising the combination of: a first tube adapted to be connected to an air supply source; a second tube of larger diameter than said first tube, the lower ends of said first and second tubes being about coterminus, the lower portions of said second tube having fluid passageways therethrough; a first layer of filter material tightly wound about and encircling the lower portions of said first and second tubes; a second layer of filter material loosely wound, relative to said first layer of filter material and encircling said first layer of filter material and said tubes; granules of charcoal at the interface between said first and second layers of filter material; and an outer layer of open mesh material encircling said second layer of filter material comprising fibers of a spun synthetic plastic, a laminate construction having varying densities and wherein each of said layers of filter material has a descreasing porosity from the outside of each of said layers inwardly of the exterior thereof, the terminal portions of said tubes terminating upwardly and angularly with respect to the longitudinal axis of said tubes, said fluid passageways in said second tube being formed by extending, displaced tube wall portions of said second tube, said displaced wall portions being angularly disposed with respect to the longitudinal axis of said second tube to form a plurality of extending securement means whereby said securement means protrude into said first layer of filter material to provide a mechanical attachment therefore.

Claim 5

A disposable aquarium filter as defined in claim 2 wherein said first and second tubes are rigidly secured to one another.

Claim 6

A disposable aquarium filter comprising a first tube adapted to be connected to an air supply source; a second larger tube, the lower end of said first and larger tubes being approximately coterminuS; said tubes being juxtaposed with respect to each other; a spun fibrous filter element wound closely about said tubes; a plurality of spaced openings in the side wall of said larger tube enclosed by said filter element; a plurality of tapered projections adjacent to and below said openings, said projections extending outwardly and upwardly from said wall; said projections penetrating said filter element to an extent sufficient to obtain a mechanical connection between said filter element and said larger tube.

Claim 7

A disposable aquarium filter comprising a first tube adapted to be connected to an air supply source; a second larger tube, the lower end of said first and larger tubes being approximately coterminuS; said tubes being juxtaposed with respect to each other; a spun fibrous filter element wound closely about said tubes; a plurality of spaced openings in the side wall of said larger tube enclosed by said filter element; a plurality of tapered projections adjacent to and below said openings, said projections extending outwardly and upwardly from said wall; said projections penetrating said filter element to an extent sufficient to obtain a mechanical connection between said filter element and said larger tube.

Claim 8

A disposable aquarium filter as defined in claim 4 wherein the material of said filter element is a spun synthetic plastic.

Claim 9

A disposable aquarium filter as defined in claim 5 wherein the terminal portions of said tubes terminate upwardly and angularly with respect to the longitudinal axis of said tubes.

Claim 10

A disposable aquarium filter in accordance with claim 4 in which said tubes are formed of molded plastic and are secured to each other.

Claim 11

A disposable aquarium filter as defined in claim 7 wherein said openings and projections in said larger tube are formed by cut out wall portions thereof, said cut out wall portions being angularly disposed with respect to the longitudinal axis of said larger tube form a mechanical attachment to said filter element.