Tube working tool

Claim 2

A tool for concurrently reaming the inner edge of a cut tube end and deburring the outer edge of the cut tube eNd comprising: a first cutter having an open conical arrangement of a plurality of equiangular conical segments spaced equiangularly apart to define alternating first cutter blades and first spaces; a second cutter having a similar open conical arrangement of said plurality of equiangular conical segments spaced similarly equiangularly apart to define alternating second cutter blades and second cutter spaces, said cutter blades having sharp side edges, said second cutter being coaxially apposed to said first cutter with the large ends of the conical cutters outermost and offset from said first cutter about the common axis thereof to align said first cutter blades of said first cutter with said second spaces of said second cutter, and said second cutter blades of said second cutter with said first spaces of said first cutter; and resilient means urging said cutters coaxially apart while permitting a tube end urged coaxially through the large end of either cutter into engagement with the inner surfaces of the cutter blades thereof to move said one cutter into interleaved relationship with the other cutter to a position wherein the inner edges of the cut end of the tube engages the cutter blades of said other cutter, whereby coaxial relative rotation between said tube end and said tool causes concurrent reaming of the inner edge of the cut tube end by said sharp side edges of said other cutter and deburring of the outer edge of the cut tube end by said sharp side edges of said one cutter.

Claim 3

A tool for concurrently reaming the inner edge of a cut tube end and deburring the outer edge of the cut tube eNd comprising: a first cutter having an open conical arrangement of a plurality of equiangular conical segments spaced equiangularly apart to define alternating first cutter blades and first spaces; a second cutter having a similar open conical arrangement of said plurality of equiangular conical segments spaced similarly equiangularly apart to define alternating second cutter blades and second cutter spaces, said cutter blades having sharp side edges, said second cutter being coaxially apposed to said first cutter with the large ends of the conical cutters outermost and offset from said first cutter about the common axis thereof to align said first cutter blades of said first cutter with said second spaces of said second cutter, and said second cutter blades of said second cutter with said first spaces of said first cutter; and resilient means urging said cutters coaxially apart while permitting a tube end urged coaxially through the large end of either cutter into engagement with the inner surfaces of the cutter blades thereof to move said one cutter into interleaved relationship with the other cutter to a position wherein the inner edges of the cut end of the tube engages the cutter blades of said other cutter, whereby coaxial relative rotation between said tube end and said tool causes concurrent reaming of the inner edge of the cut tube end by said sharp side edges of said other cutter and deburring of the outer edge of the cut tube end by said sharp side edges of said one cutter.

Claim 4

A tool for concurrently reaming the inner edge of a cut tube end and deburring the outer edge of the cut tube eNd comprising: a first cutter having an open conical arrangement of a plurality of equiangular conical segments spaced equiangularly apart to define alternating first cutter blades and first spaces; a second cutter having a similar open conical arrangement of said plurality of equiangular conical segments spaced similarly equiangularly apart to define alternating second cutter blades and second cutter spaces, said cutter blades having sharp side edges, said second cutter being coaxially apposed to said first cutter with the large ends of the conical cutters outermost and offset from said first cutter about the common axis thereof to align said first cutter blades of said first cutter with said second spaces of said second cutter, and said second cutter blades of said second cutter with said first spaces of said first cutter; and resilient means urging said cutters coaxially apart while permitting a tube end urged coaxially through the large end of either cutter into engagement with the inner surfaces of the cutter blades thereof to move said one cutter into interleaved relationship with the other cutter to a position wherein the inner edges of the cut end of the tube engages the cutter blades of said other cutter, whereby coaxial relative rotation between said tube end and said tool causes concurrent reaming of the inner edge of the cut tube end by said sharp side edges of said other cutter and deburring of the outer edge of the cut tube end by said sharp side edges of said one cutter.

Claim 5

The tool of claim 1 wherein said cutters define annular base portions at the large end thereof, said cutter blades being formed integrally with said base portion.

Claim 6

The tool of claim 1 wherein said resilient means comprises a coil spring extending coaxially between the large ends of said cutters.

Claim 7

The tool of claim 1 including means for limiting the movement of said cutters apart to maintain at least the tips of the cutter blades interleaved.

Claim 8

The tool of claim 1 including means for guiding the movement of the cutter by said tube end.

Claim 9

The tool of claim 1 wherein said cutters define conical arrangement of three 60* conical blades spaced equiangularly apart 60* .

Claim 10

A tool for concurrently reaming the inner edge of a cut tube end and deburring the outer edge of the cut tube end comprising: a first cutter having an open conical arrangement of a plurality of equiangular conical segments spaced equiangularly apart to define alternating first cutter blades and first spaces; a second cutter having a similar open conical arrangement of said plurality of equiangular conical segments spaced similarly equiangularly apart to define alternating second cutter blades and second cutter spaces, said cutter blades having sharp side edges, said second cutter being coaxially apposed to said first cutter with the large ends of the conical cutters outermost and offset from said first cutter about the common axis thereof to align said first cutter blades of said first cutter with said second spaces of said second cutter, and said second cutter blades of said second cutter with said first spaces of said first cutter; resilient means urging said cutters coaxially apart while permitting a tube end urged coaxially through the large end of either cutter into engagement with the inner surfaces of the cutter blades thereof to move said one cutter into interleaved relationship with the other cutter to a position wherein the inner edges of the cut end of the tube engages the cutter blades of said other cutter, whereby coaxialy relative rotation between said tube end and said tool causes concurrent reaming of the inner edge of the cut tube end by said sharp side edges of said other cutter and deburring of the outer edge of the cut tube end by said sharp side edges of said one cutter; and means for guiding the tube end coaxially into said engagement with the inner surfaces of the cutter blades of said one cutter.

Claim 11

A tool for concurrently reaming the inner edge of a cut tube end and deburring the outer edge of the cut tube end comprising: a first cutter having an open conical arrangement of a plurality of equiangular conical segments spaced equiangularly apart to define alternating first cutter blades and first spaces; a second cutter having a similar open conical arrangement of said plurality of equiangular conical segments spaced similarly equiangularly apart to define alternating second cutter blades and second cutter spaces, said cutter blades having sharp side edges, said second cutter being coaxially apposed to said first cutter with the large ends of the conical cutters outermost and offset from said first cutter about the common axis thereof to align said first cutter blades of said first cutter with said second spaces of said second cutter, and said second cutter blades of said second cutter with said first spaces of said first cutter; resilient means urging said cutters coaxially apart while permitting a tube end urged coaxially through the large end of either cutter into engagement with the inner surfaces of the cutter blades thereof to move said one cutter into interleaved relationship with the other cutter to a position wherein the inner edges of the cut end of the tube engages the cutter blades of said other cutter, whereby coaxialy relative rotation between said tube end and said tool causes concurrent reaming of the inner edge of the cut tube end by said sharp side edges of said other cutter and deburring of the outer edge of the cut tube end by said sharp side edges of said one cutter; and means for guiding the tube end coaxially into said engagement with the inner surfaces of the cutter blades of said one cutter.

Claim 12

The tool of claim 7 wherein Said guiding means comprises wall means defining a guide hole coaxially aligned with said cutters and spaced outwardly from said one cutter a substantial preselected distance when said cutters are in maximum spaced-apart relationship.

Claim 13

The tool of claim 7 further including a tubular housing coaxially enclosing said cutters and said guiding means comprises wall means extending across an end of said tubular housing and defining a guide hole coaxially aligned with said cutters and spaced outwardly from said one cutter a substantial preselected distance when said cutters are in maximum spaced-apart relationship.

Claim 14

The tool of claim 7 further including a tubular housing coaxially enclosing said cutters and carrying means for guiding the relative coaxial movement between said cutters.

Claim 15

The tool of claim 7 wherein said cutters define annular base portions at the large end thereof, said tool further including a tubular housing coaxially enclosing said cutters and cooperating means on said base portions of the cutters and said housing for guiding the relative coaxial movement between said cutters.

Claim 16

A tool for concurrently reaming the inner edge of a cut tube end and deburring the outer edge of the cut tube end comprising: a first cutter having an open conical arrangement of a plurality of equiangular conical segments spaced equiangularly apart to define alternating first cutter blades and first spaces; a second cutter having a similar open conical arrangement of said plurality of equiangular conical segments spaced similarly equiangularly apart to define alternating second cutter blades and second cutter spaces, said cutter blades having sharp side edges, said second cutter being coaxially apposed to said first cutter with the large ends of the conical cutters outermost and offset from said first cutter about the common axis thereof to align said first cutter blades of said first cutter with said second spaces of said second cutter, and said second cutter blades of said second cutter with said first spaces of said first cutter; resilient means urging said cutters coaxially apart while permitting a tube end urged coaxially through the large end of one cutter into engagement with the inner surfaces of the cutter blades thereof to move said one cutter into interleaved relationship with the other cutter to a position wherein the inner edges of the cut end of the tube engages the cutter blades of said other cutter, whereby coaxially relative rotation between said tube end and said tool causes concurrent reaming of the inner edge of the cut tube end by said sharp side edges of said other cutter and deburring of the outer edge of the cut tube end by said sharp side edges of such one cutter; and means for guiding the tube end coaxially into said engagement with the inner surfaces of the cutter blades of said one cutter, said guiding means comprising a pair of walls, one each at the opposite outer ends of said cutters, each wall defining a guide hole coaxially aligned with said cutters.

Claim 17

A tool for concurrently reaming the inner edge of a cut tube end and deburring the outer edge of the cut tube end comprising: a first cutter having an open conical arrangement of a plurality of equiangular conical segments spaced equiangularly apart to define alternating first cutter blades and first spaces; a second cutter having a similar open conical arrangement of said plurality of equiangular conical segments spaced similarly equiangularly apart to define alternating second cutter blades and second cutter spaces, said cutter blades having sharp side edges, said second cutter being coaxially apposed to said first cutter with the large ends of the conical cutters outermost and offset from said first cutter about the common axis thereof to align said first cutter blades of said first cutter with said second spaces of said second cutter, and said second cutter blades of said second cutter with said first spaces of said first cutter; resilient means urging said cutters coaxially apart while permitting a tube end urged coaxially through the large end of one cutter into engagement with the inner surfaces of the cutter blades thereof to move said one cutter into interleaved relationship with the other cutter to a position wherein the inner edges of the cut end of the tube engages the cutter blades of said other cutter, whereby coaxially relative rotation between said tube end and said tool causes concurrent reaming of the inner edge of the cut tube end by said sharp side edges of said other cutter and deburring of the outer edge of the cut tube end by said sharp side edges of such one cutter; and means for guiding the tube end coaxially into said engagement with the inner surfaces of the cutter blades of said one cutter, said guiding means comprising a pair of walls, one each at the opposite outer ends of said cutters, each wall defining a guide hole coaxially aligned with said cutters.

Claim 18

The tool of claim 12 wherein said guide hole of one wall has a diameter different from that of the guide hole of the other end wall.

Claim 19

A tool for concurrently reaming the inner edge of a cut tube end and deburring the outer edge of the cut tube end comprising: a first cutter having an open conical arrangement of a plurality of equiangular conical segments spaced equiangularly apart to define alternating first cutter blades and first spaces; a second cutter having a similar open conical arrangement of said plurality of equiangular conical segments spaced similarly equiangularly apart to define alternating second cutter blades and second cutter spaces, said cutter blades having sharp side edges, said second cutter being coaxially apposed to said first cutter with the large ends of the conical cutters outermost and offset from said first cutter about the common axis thereof to align said first cutter blades of said first cutter with said second spaces of said second cutter, and sAid second cutter blades of said second cutter with said first spaces of said first cutter; resilient means urging said cutters coaxially apart while permitting a tube end urged coaxially through the large end of one cutter into engagement with the inner surfaces of the cutter blades thereof to move said one cutter into interleaved relationship with the other cutter to a position wherein the inner edges of the cut end of the tube engages the cutter blades of said other cutter, whereby coaxially relative rotation between said tube end and said tool causes concurrent reaming of the inner edge of the cut tube end by said sharp side edges of said other cutter and deburring of the outer edge of the cut tube end by said sharp side edges of such one cutter; and means for guiding the tube end coaxially into said engagement with the inner surfaces of the cutter blades of said one cutter, said guiding means comprising a wall element defining a guide hole and means for removably mounting the wall element in the tool in coaxial alignment with said cutters and spaced outwardly from said one cutter a substantial preselected distance when said cutters are in maximum spaced-apart relationship.

Claim 20

A tool for concurrently reaming the inner edge of a cut tube end and deburring the outer edge of the cut tube end comprising: a first cutter having an open conical arrangement of a plurality of equiangular conical segments spaced equiangularly apart to define alternating first cutter blades and first spaces; a second cutter having a similar open conical arrangement of said plurality of equiangular conical segments spaced similarly equiangularly apart to define alternating second cutter blades and second cutter spaces, said cutter blades having sharp side edges, said second cutter being coaxially apposed to said first cutter with the large ends of the conical cutters outermost and offset from said first cutter about the common axis thereof to align said first cutter blades of said first cutter with said second spaces of said second cutter, and sAid second cutter blades of said second cutter with said first spaces of said first cutter; resilient means urging said cutters coaxially apart while permitting a tube end urged coaxially through the large end of one cutter into engagement with the inner surfaces of the cutter blades thereof to move said one cutter into interleaved relationship with the other cutter to a position wherein the inner edges of the cut end of the tube engages the cutter blades of said other cutter, whereby coaxially relative rotation between said tube end and said tool causes concurrent reaming of the inner edge of the cut tube end by said sharp side edges of said other cutter and deburring of the outer edge of the cut tube end by said sharp side edges of such one cutter; and means for guiding the tube end coaxially into said engagement with the inner surfaces of the cutter blades of said one cutter, said guiding means comprising a wall element defining a guide hole and means for removably mounting the wall element in the tool in coaxial alignment with said cutters and spaced outwardly from said one cutter a substantial preselected distance when said cutters are in maximum spaced-apart relationship.