US3788180A — Slitter for display packages and similar products

Claim 1

Independent Claim 125 words

A slitter for slitting sheets of material comprising a frame, an inclined flat stationary sheet feed bed fixedly mounted on said frame including a series of transversely spaced inclined rails each having a rotary knife opening intermediate its upper and lower ends, cutting means at each of said knife openings comprising a rotary knife and an anvil supported on said frame with said cutting means being aligned with said knife opening for slitting the sheet as it moves downwardly from the upper ends of the rails across said knife openings and with the rails at the lower ends supporting the slit sheet after being cut by said cutting means, means for transversely adjusting the rails and the cutting means, and, means for driving said anvils.

Claim 2

Dependent Claim 125 words

A slitter for slitting sheets of material comprising a frame, an inclined flat stationary sheet feed bed fixedly mounted on said frame including a series of transversely spaced inclined rails each having a rotary knife opening intermediate its upper and lower ends, cutting means at each of said knife openings comprising a rotary knife and an anvil supported on said frame with said cutting means being aligned with said knife opening for slitting the sheet as it moves downwardly from the upper ends of the rails across said knife openings and with the rails at the lower ends supporting the slit sheet after being cut by said cutting means, means for transversely adjusting the rails and the cutting means, and, means for driving said anvils.

Claim 3

Dependent Claim 30 words

The slitter of claim 1 further characterized by inclined product support means positioned between said inclined rails providing product support means which product is carried on the sheet being slit.

Claim 4

Dependent Claim 49 words

The slitter of claim 1 further characterized by a knife support bar supported at opposite ends by said frame in overlying relation with respect to the lower ends of said rails, and mounting means carried by said support bar providing a cantilever support for each of said rotary knives.

Claim 5

Dependent Claim 40 words

The slitter of claim 1 further characterized by said means for driving said anvils comprising a motor mounted on said frame, a drive pulley operatively connected to said anvils, and meaNs connecting said motor and said pulley in driving relation.

Claim 6

Dependent Claim 74 words

The slitter of claim 1 further characterized by said anvil knife having a flat surface being mounted at a 1 1/2 * angle in offset relation to said upper slitting knife and with the upper slitting knife being mounted and operationed to force the paper into contact with said flat surface on said anvil knife, whereby a self-sharpening action is attained to enable the knife and anvil to co-act to produce a shear cut.

Claim 7

Dependent Claim 53 words

The slitter of claim 1 further characterized by each of said rails having a knife opening intermediate its upper and lower ends and with the associated knife and anvil assembly being aligned with said knife opening thus permitting the sheet to be slit as it passes over said knife openings in said rails.

Claim 8

Dependent Claim 42 words

The slitter of claim 1 further characterized by said bed having a pair of sheet edge guides at transversely opposite sides of the bed enabling prescribed areas of each sheet to be conveyed into a cutting zone defined by said cutting means.

Claim 9

Dependent Claim 28 words

The slitter of claim 7 further characterized by means for moving each of said edge guides independently of one another in directions towards and away from one another.

Claim 10

Dependent Claim 29 words

The slitter of claim 7 further characterized by means for moving said edge guides transversely relative to the frame in selected adjusted positions relative to said knife and anvil.

Claim 11

Dependent Claim 165 words

A slitter for slitting sheets of material comprising: a frame, an inclined flat stationary sheet feed bed fixedly mounted in an inclined position on said frame including a series of transversely spaced inclined rails each having upper and lower ends, cutting means co-operative with each of said rails comprising a rotary knife and an anvil supported on said frame with said cutting means being operable for slitting the sheet as it moves downwardly from the upper ends of the rails in a direction toward the lower ends of the rails, and means for casusing said knives and anvils to be driven relative to one another for cutting the sheets, each of said rails being provided with adjustable mounting means to permit the rails to be individually moved transversely of the bed and said knives and anvils each being provided with adjustable mounting means to enable each of them to be shifted and moved transversely of the bed independently of one another to minimize set-up time.

Claim 12

Dependent Claim 165 words

A slitter for slitting sheets of material comprising: a frame, an inclined flat stationary sheet feed bed fixedly mounted in an inclined position on said frame including a series of transversely spaced inclined rails each having upper and lower ends, cutting means co-operative with each of said rails comprising a rotary knife and an anvil supported on said frame with said cutting means being operable for slitting the sheet as it moves downwardly from the upper ends of the rails in a direction toward the lower ends of the rails, and means for casusing said knives and anvils to be driven relative to one another for cutting the sheets, each of said rails being provided with adjustable mounting means to permit the rails to be individually moved transversely of the bed and said knives and anvils each being provided with adjustable mounting means to enable each of them to be shifted and moved transversely of the bed independently of one another to minimize set-up time.

Claim 13

Dependent Claim 167 words

A slitter for slitting sheets of material comprising a frame, an inclined flat stationary sheet feed bed fixedly mounted in an inclined position on said frame including a series of transversely spaced inclined rails each having upper and lower ends, cutting means co-operative with each off said rails comprising a rotary knife and an anvil supported on said frame with said cutting means being operable for slitting the sheet as it moves downwardly from the upper ends of the rails in a direction toward the lower ends of the rails, and means for causing said knives and anvils to be driven relative to one another for cutting the sheets; edge guides being disposed at opposite sides of said bed, and means co-operable with said edge guides enabling the edge guides to be moved simultaneously toward and away from one another when said edge guides are interconnected and enabling said edge guides to be moved independently of one another when said edge guides are disengaged from one another.

Claim 14

Dependent Claim 167 words

A slitter for slitting sheets of material comprising a frame, an inclined flat stationary sheet feed bed fixedly mounted in an inclined position on said frame including a series of transversely spaced inclined rails each having upper and lower ends, cutting means co-operative with each off said rails comprising a rotary knife and an anvil supported on said frame with said cutting means being operable for slitting the sheet as it moves downwardly from the upper ends of the rails in a direction toward the lower ends of the rails, and means for causing said knives and anvils to be driven relative to one another for cutting the sheets; edge guides being disposed at opposite sides of said bed, and means co-operable with said edge guides enabling the edge guides to be moved simultaneously toward and away from one another when said edge guides are interconnected and enabling said edge guides to be moved independently of one another when said edge guides are disengaged from one another.

Claim 15

Dependent Claim 223 words

A slitter for slitting sheets of material comprising a frame, an inclined flat stationary sheet feed bed fixedly mounted in an inclined position on said frame including a series of transversely spaced inclined rails each having upper and lower ends, cutting means co-operative with each of said rails comprising a rotary knife and an anvil supported on said frame with said cutting means being operable for slitting the sheet as it moves downwardly from the upper ends of the rails in a direction toward the lower ends of the rails, means for causing said Knives and anvils to be driven relative to one another for cutting the sheets, each of said rails being provided with adjustable mounting means to permit the rails to be individually moved transversely of the bed and said knives and anvils each being provided with an adjustable mounting means to enable each of them to be shifted and moved transversely of the bed independently of one another to minimize set-up time, and a knive support bar being mounted on the frame and overlying a lower end of said infeed section, knife support arms mounted as cantilevers from said support bar with said knives mounted thereon, and adjustable means connecting said arms to said bar permitting said arms to be mounted in selected positions along the length of said bar.

Claim 16

Dependent Claim 223 words

A slitter for slitting sheets of material comprising a frame, an inclined flat stationary sheet feed bed fixedly mounted in an inclined position on said frame including a series of transversely spaced inclined rails each having upper and lower ends, cutting means co-operative with each of said rails comprising a rotary knife and an anvil supported on said frame with said cutting means being operable for slitting the sheet as it moves downwardly from the upper ends of the rails in a direction toward the lower ends of the rails, means for causing said Knives and anvils to be driven relative to one another for cutting the sheets, each of said rails being provided with adjustable mounting means to permit the rails to be individually moved transversely of the bed and said knives and anvils each being provided with an adjustable mounting means to enable each of them to be shifted and moved transversely of the bed independently of one another to minimize set-up time, and a knive support bar being mounted on the frame and overlying a lower end of said infeed section, knife support arms mounted as cantilevers from said support bar with said knives mounted thereon, and adjustable means connecting said arms to said bar permitting said arms to be mounted in selected positions along the length of said bar.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1977-01-28	1977-07-30	1978-01-29	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1981-01-28	1981-07-30	1982-01-29	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1985-01-28	1985-07-30	1986-01-29	$7700.00	Window Closed / Lapsed

Slitter for display packages and similar products

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