US3866449A — Method for dividing an elongated body into separa…

Claim 1

Independent Claim 118 words

In a method of dividing an elongated body of circular section into a plurality of pieces, the steps of forming a plurality of circumferential grooves in the exterior surface of the elongated body between the ends thereof while spacing the circumferential grooves one from the next in accordance with desired lengths of the pieces into which the elongated body is to be divided, sequentially bending the body at the region of sequential grooves thereof while simultaneously rotating the body around its longitudinal axis for breaking the body at the locations of said grooves, and longitudinally feeding the body while simultaneously rotating and bending the latter so that the body is continuously fed and successively broken at successive grooves.

Claim 2

Dependent Claim 118 words

In a method of dividing an elongated body of circular section into a plurality of pieces, the steps of forming a plurality of circumferential grooves in the exterior surface of the elongated body between the ends thereof while spacing the circumferential grooves one from the next in accordance with desired lengths of the pieces into which the elongated body is to be divided, sequentially bending the body at the region of sequential grooves thereof while simultaneously rotating the body around its longitudinal axis for breaking the body at the locations of said grooves, and longitudinally feeding the body while simultaneously rotating and bending the latter so that the body is continuously fed and successively broken at successive grooves.

Claim 3

Dependent Claim 86 words

In a method as recited in claim 1 and including the step of acting on the body with a pair of rolls one of which has an elongated exterior surface of convex configuration and the other of which has an elongated surface of concave configuration with said rolls respectively having oppositely inclined axes which are respectively inclined with respect to the axis of said longitudinal body, while the latter travels between said rolls to be rotated, bent, and longitudinally fed by the action of said rolls.

Claim 4

Dependent Claim 30 words

In a method as recited in claim 2 and wherein said rolls have their axes respectively inclined at the same angle with respect to the longitudinal axis of said body.

Claim 5

Dependent Claim 50 words

In a method as recited in claim 2 and wherein the angles of said rolls with respect to the longitudinal axis of the body are respectively determined with the condition that the body is fed in the longitudinal direction thereof while being rotated by the rotary motion of said rolls.

Claim 6

Dependent Claim 28 words

In a method as recited in claim 3 and wherein the circumferential grooves are initially formed in the body prior to travel of the latter between the rolls.

Claim 7

Dependent Claim 29 words

In a method as recited in claim 3 and wherein the circumferential grooves are formed in the body simultaneously with the longitudinal movement of the latter between the rolls.

Claim 8

Dependent Claim 16 words

In a method as recited in claim 1 and wherein said body is made of metal.

Claim 9

Dependent Claim 14 words

In a method as recited in claim 1 and wherein the body is solid.

Claim 10

Dependent Claim 14 words

In a method as recited in claim 1 and wherein the body is tubular.

Claim 11

Dependent Claim 16 words

In a method as recited in claim 1 and wherein the body is made of steel.

Claim 12

Dependent Claim 18 words

In a method as recited in claim 1 and wherein said groove is of a rectangular cross section.

Claim 13

Dependent Claim 18 words

In a method as recited in claim 1 and wherein said groove is of a V-shaped cross section.

Claim 14

Dependent Claim 27 words

In a method as recited in claim 12 and wherein said groove has a rounded inner end surface area situated between opposed side surfaces of said groove.

Claim 15

Dependent Claim 34 words

In a method as recited in claim 1 and wherein the body is rotated while at least one die is simultaneously pressed into the surface of the body to form the circumferential groove therein.

Claim 16

Dependent Claim 167 words

In a method of dividing an elongated body of circular section into at least a pair of pieces, the steps of forming a circumferential groove in the exterior surface of the body between the ends thereof, and rotating the body around its longitudinal axis while simultaneously bending the body at the region of said circumferential groove for breaking the body at said circumferential groove, the body being engaged by only a pair of opposed rotating rolls one of which is of a convex configuration and the other of which is of a concave configuration with said rolls acting on the body to simultaneously rotate and bend the latter, said rolls being inclined with respect to each other and with respect to the longitudinal axis of said body with the angles of said rolls with respect to the axis of the body being respectively determined with the condition that the body is fed in the longitudinal direction thereof while being rotated by the rotary motion of said rolls.

Claim 17

Dependent Claim 167 words

In a method of dividing an elongated body of circular section into at least a pair of pieces, the steps of forming a circumferential groove in the exterior surface of the body between the ends thereof, and rotating the body around its longitudinal axis while simultaneously bending the body at the region of said circumferential groove for breaking the body at said circumferential groove, the body being engaged by only a pair of opposed rotating rolls one of which is of a convex configuration and the other of which is of a concave configuration with said rolls acting on the body to simultaneously rotate and bend the latter, said rolls being inclined with respect to each other and with respect to the longitudinal axis of said body with the angles of said rolls with respect to the axis of the body being respectively determined with the condition that the body is fed in the longitudinal direction thereof while being rotated by the rotary motion of said rolls.

Claim 18

Dependent Claim 48 words

In a method as recited in claim 15 and wherein said rolls are inclined with respect to each other and with respect to the longitudinal axis of said body with the of said rolls being inclined at the same angle with respect to the axis of said body.

Claim 19

Dependent Claim 25 words

In a method as recited in claim 15 and wherein said groove has a pair of opposed oppositely inclined surfaces which sharply intersect each other.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1978-02-17	1978-08-19	1979-02-18	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1982-02-17	1982-08-19	1983-02-18	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1986-02-17	1986-08-19	1987-02-18	$7700.00	Window Closed / Lapsed

Method for dividing an elongated body into separate pieces

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