Patent US5075691A successfully refreshed from Google Patents.
Patent US4043234A successfully refreshed from Google Patents.
US4043234A
Expired / Lapsed
US
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Apparatus and method for cutting circles from sheet material
Assignee: Individual
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Filing: 1976-11-24
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Granted: 1977-08-23
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Expires: 1996-11-24
Abstract
Abstract To avoid the waste of die-cutting a plurality of circular blanks of identical diameter from rectangular sheet material, the material is formed into non-rectangular sheets of parallelogram trapezoid, or equilateral triangle configuration, which have a predetermined length and width substantially equal to a multiple of the diameter of the circles. The circular dies of a gang-die cutter are juxtaposed in a series of laterally extending rows in parallelism, longitudinally of the die cutter, the rows being at an angle of 60° to the longitudinal edges of the sheets. The sheets and the die pattern thus both are of parallelogram trapezoid, or equilateral triangle, outline.
Inventors
- 👤 Victor B. Godin
- 👤 Howard P. Bruck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:15
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/02; B21D28/06; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0524; Y10T83/0529; Y10T83/0577; Y10T83/06; Y10T83/647; Y10T83/6476; Y10T83/6484; Y10T83/869; Y10T83/8821; Y10T83/8828; Y10T83/8831; Y10T83/929; Y10T83/9411; Y10T83/9423; Y10T83/944
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
216 words
The method of cutting a plurality of circles of identical diameter from elongated sheets by means of a gang type die cutter, said method comprising the steps of providing a plurality of said elongated sheets, each with a pair of longitudinal edges at a predetermined width apart and a pair of lateral edges each at a predetermined length apart, said predetermined width and length being substantially an exact multiple of the diameter of said circles plus trim, the lateral edges of each said sheet defining an acute angle of about sixty degrees with a longitudinal edge thereof to form the outline of said sheet into parallelogram, trapezoid, or equilateral triangle, configuration; arranging the circular dies of said gang type die cutter in closely packed, laterally extending rows, juxtaposed successively lengthwise of said cutter, the centres of each successive lateral row of said circular dies being aligned at an acute angle of about sixty degrees from a longitudinal edge of said cutter and the overall width and length of said rows of cutters being substantially an exact multiple of the diameter of said circles plus trim spacing; and then individually and successively die cutting lifts of superposed said sheets by means of said cutter to simultaneously form a plurality of circles of identical diameter with minimum waste.
Claim 2
Independent Claim
216 words
The method of cutting a plurality of circles of identical diameter from elongated sheets by means of a gang type die cutter, said method comprising the steps of providing a plurality of said elongated sheets, each with a pair of longitudinal edges at a predetermined width apart and a pair of lateral edges each at a predetermined length apart, said predetermined width and length being substantially an exact multiple of the diameter of said circles plus trim, the lateral edges of each said sheet defining an acute angle of about sixty degrees with a longitudinal edge thereof to form the outline of said sheet into parallelogram, trapezoid, or equilateral triangle, configuration; arranging the circular dies of said gang type die cutter in closely packed, laterally extending rows, juxtaposed successively lengthwise of said cutter, the centres of each successive lateral row of said circular dies being aligned at an acute angle of about sixty degrees from a longitudinal edge of said cutter and the overall width and length of said rows of cutters being substantially an exact multiple of the diameter of said circles plus trim spacing; and then individually and successively die cutting lifts of superposed said sheets by means of said cutter to simultaneously form a plurality of circles of identical diameter with minimum waste.
Claim 3
Dependent Claim
53 words
A method as specified in claim 1 wherein: said step of providing said sheets includes the steps of cutting the opposite laterally extending edges of each sheet in parallelism to form parallograms with a pair of acute opposite corner angles of 60°, and a pair of obtuse opposite corner angles of about 120°.
Claim 4
Dependent Claim
45 words
A method as specified in claim 1 wherein; said step of providing said sheets includes the step of cutting the opposite laterally extending edges of each sheet in angular relationship to each other to form equilateral triangles with all three interior angles at about 60°.
Claim 5
Dependent Claim
130 words
Apparatus for cutting a plurality of circles of identical diameter from elongated sheet material of predetermined width and length which comprises means for cutting at least one said sheet to form a pair of longitudinal edges spaced said predetermined width apart and a pair of lateral edges spaced said predetermined length apart, said lateral edges being at an angle of about 60° to at least one of said longitudinal edges and means for simultaneously cutting a plurality of circles of identical diameter from said sheet, said means including a gang die cutter with a plurality of juxtaposed, circular cutting dies extending thereover, said dies being arranged longitudinally in a series of rectilinearly aligned, laterally extending rows of dies, each row being in parallelism with said lateral edges of said sheets.
Claim 6
Dependent Claim
130 words
Apparatus for cutting a plurality of circles of identical diameter from elongated sheet material of predetermined width and length which comprises means for cutting at least one said sheet to form a pair of longitudinal edges spaced said predetermined width apart and a pair of lateral edges spaced said predetermined length apart, said lateral edges being at an angle of about 60° to at least one of said longitudinal edges and means for simultaneously cutting a plurality of circles of identical diameter from said sheet, said means including a gang die cutter with a plurality of juxtaposed, circular cutting dies extending thereover, said dies being arranged longitudinally in a series of rectilinearly aligned, laterally extending rows of dies, each row being in parallelism with said lateral edges of said sheets.
Claim 7
Independent Claim
118 words
The method of cutting a plurality of circles of identical diameter from a plurality of superposed flat sheets by means of a cutter having a plurality of identical circular dies which comprises the steps of cutting said sheets to a predetermined length and width, said dimensions being substantially a multiple of said diameter and with one pair of opposite edges of said sheets at substantially a 60° angle to one of the other pair of opposite edges: then cutting a plurality of said circles simultaneously from a lift of said superposed sheets with said plurality of identical circular dies of said cutter juxtaposed in close packed relation in an overall pattern conforming to the configuration of said sheets;
Claim 8
Independent Claim
118 words
The method of cutting a plurality of circles of identical diameter from a plurality of superposed flat sheets by means of a cutter having a plurality of identical circular dies which comprises the steps of cutting said sheets to a predetermined length and width, said dimensions being substantially a multiple of said diameter and with one pair of opposite edges of said sheets at substantially a 60° angle to one of the other pair of opposite edges: then cutting a plurality of said circles simultaneously from a lift of said superposed sheets with said plurality of identical circular dies of said cutter juxtaposed in close packed relation in an overall pattern conforming to the configuration of said sheets;
Claim 9
Dependent Claim
36 words
A method as specified in claim 5 wherein; the step of cutting said sheets includes the step of cutting said one pair of opposite edges in parallelism with each other to configure said sheets as parallelograms.
Claim 10
Dependent Claim
40 words
A method as specified in claim 5 wherein; the step of cutting said sheets includes the step of cutting said one pair of edges in an angular relation to each other to configure said sheets as trapezoids or equilateral triangles.
Claim 11
Dependent Claim
107 words
Apparatus for cutting a plurality of circles of identical diameter from sheet material with minimum waste said cutter comprising a cutter of predetermined length and width, said dimensions being each substantially a multiple of said diameter plus trim space, said cutter having a plurality of laterally extending rows of juxtaposed, circular dies arranged longitudinally therealong. said rows being in parallelism with each other and being at an angle of about 60° from a longitudinal edge of said cutter to form an overall parallelogram pattern of circular cutters, said parallelogram having a pair of acute angles of about 60° and a pair of obtuse angles of about 120°.
Claim 12
Dependent Claim
107 words
Apparatus for cutting a plurality of circles of identical diameter from sheet material with minimum waste said cutter comprising a cutter of predetermined length and width, said dimensions being each substantially a multiple of said diameter plus trim space, said cutter having a plurality of laterally extending rows of juxtaposed, circular dies arranged longitudinally therealong. said rows being in parallelism with each other and being at an angle of about 60° from a longitudinal edge of said cutter to form an overall parallelogram pattern of circular cutters, said parallelogram having a pair of acute angles of about 60° and a pair of obtuse angles of about 120°.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-22 | 1981-02-21 | 1981-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-22 | 1985-02-21 | 1985-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-22 | 1989-02-21 | 1989-08-23 | $7700.00 | Window Closed / Lapsed |