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US3790331A Expired / Lapsed US ⏱️ 0.0 years remaining

Extruding flower designs

Assignee: Individual
•
Filing: 1971-06-14
•
Granted: 1974-02-05
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Expires: 1991-06-14
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Abstract

Abstract There is disclosed a method and apparatus for extruding flower designs from a plastic extrudate in essentially a one step operation. The die through which the extrudate is expressed includes means for moving the terminal ends of the petal forming strips laterally of the axis of extrudate movement upon cessation of extrusion.

Inventors

  • 👤 M Backer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 23:54
CPC Classifications
A; A23; A23G; A23G3/00; A23G3/02; A23G3/28; A23G3/0236; A23G3/0242; B; B29; B29C; B29C48/00; B29C48/03; B29C48/05; B29C48/25; B29C48/30; B29C48/345; B29C48/12; B29C48/13

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 104 words
A device for extruding flower designs, comprising; an open ended non-partitioned extrudate reservoir terminating in an apertured flower extruding die defining an axis of extrusion and having an inner extrudate engaging surface extending inwardly toward said reservoir and in open communication with the interior thereof; said apertured extruding die including central and peripheral extrusion apertures respectively adjacent and remote from the extrusion axis in open communication with said reservoir for separating the extrudate into a plurality of central and peripheral petal forming strips; and said peripheral extrusion apertures defining a disproportionately greater angle of convergence with the extrusion axis than said central extrusion openings.
Claim 2
Independent Claim 104 words
A device for extruding flower designs, comprising; an open ended non-partitioned extrudate reservoir terminating in an apertured flower extruding die defining an axis of extrusion and having an inner extrudate engaging surface extending inwardly toward said reservoir and in open communication with the interior thereof; said apertured extruding die including central and peripheral extrusion apertures respectively adjacent and remote from the extrusion axis in open communication with said reservoir for separating the extrudate into a plurality of central and peripheral petal forming strips; and said peripheral extrusion apertures defining a disproportionately greater angle of convergence with the extrusion axis than said central extrusion openings.
Claim 3
Independent Claim 117 words
A device for extruding flower designs comprising: a non-partioned extrudate reservoir having an outlet; and a flower extruding die comprising an inlet for receiving all the extrudate emitting from the reservoir and a perforate outlet having an outer surface concave toward the downstream end of an axis of extrudate movement and an inner surface, the entire area of the inner surface being in open communication with the reservoir outlet, the die outlet including inner and outer perforate portions for separating the extrudate into a plurality of inner and outer petal forming strips, the openings in the outer perforate section defining a disproportionately greater angle of convergence with the axis than the openings in the inner perforate section.
Claim 4
Independent Claim 117 words
A device for extruding flower designs comprising: a non-partioned extrudate reservoir having an outlet; and a flower extruding die comprising an inlet for receiving all the extrudate emitting from the reservoir and a perforate outlet having an outer surface concave toward the downstream end of an axis of extrudate movement and an inner surface, the entire area of the inner surface being in open communication with the reservoir outlet, the die outlet including inner and outer perforate portions for separating the extrudate into a plurality of inner and outer petal forming strips, the openings in the outer perforate section defining a disproportionately greater angle of convergence with the axis than the openings in the inner perforate section.
Claim 5
Dependent Claim 13 words
The flower extruding die of claim 2 wherein the openings define sharp edges.
Claim 6
Dependent Claim 21 words
The flower extruding die of claim 2 wherein the body of said extruding die converges in the direction of extrudate movement.
Claim 7
Dependent Claim 32 words
The flower extruding die of claim 2 wherein the body of extruding die is affixed to the outer perforate portion and defining at the juncture thereof an angle less than about 45*.
Claim 8
Dependent Claim 18 words
The flower extruding die of claim 2 wherein the outer perforate portion completely surrounds the inner perforate portion.
Claim 9
Dependent Claim 45 words
The flower extruding die of claim 2 wherein the inner portion provides a first curvature, the outer portion provides a second greater curvature and the openings in the inner and outer portions are substantially perpendicular to the outlet section at the location of the openings.
Claim 10
Dependent Claim 29 words
The flower extruding die of claim 7 wherein the inner portion openings are of predetermined cross sectional area and the outer portion openings are of greater cross sectional area.
Claim 11
Dependent Claim 27 words
The flower extruding die of claim 7 wherein the inner portion openings are of a first configuration and the outer portion openings are of a second configuration.
Claim 12
Dependent Claim 28 words
The flower extruding die of claim 7 wherein the first curvature is defined by a predetermined radius and the second curvature is defined by a shorter predetermined radius.
Claim 13
Dependent Claim 49 words
The flower extruding die of claim 10 wherein the center of said predetermined radius is outside the confines of the concave section and the center of said shorter predetermined radius is defined by a locus of points, closer to the confines of the concave section, concentric with the axis.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-02-04 1977-08-06 1978-02-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-02-04 1981-08-06 1982-02-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-02-04 1985-08-06 1986-02-05 $7700.00 Window Closed / Lapsed

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