US3737269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting apparatus for extruded material
Assignee: Unex Machine And Tool Co Inc
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Filing: 1971-08-23
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Granted: 1973-06-05
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Expires: 1991-08-23
Abstract
Abstract A machine for extruding an extrudable material, such as a food product dough, through a plurality of dies having die openings of a desired configuration and for slicing off the extruded material by means of a plurality of reciprocatory cutting blades, one for each die, the blades being adapted to move across and in contact with the lower faces of the dies in a cutting stroke. To ensure severing of the extruded material at high speeds and without distortion of the configuration thereof, the lower face of each die is convex in a transverse direction, the blade consists of a thin, flexible strip having a sharp cutting edge, and the blade is mounted in such a manner that it is held under tension, the mounting means including means for adjusting the position of the blade relative to the lower face of its associated due to maintain it in contact with such die face during the cutting stroke. A typical field of use of the machine is in the production of pretzels from pretzel dough.
Inventors
- 👤 F Grady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:16
CPC Classifications
A; A21; A21C; A21C11/00; A21C11/16
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
117 words
A cutter mechanism and die for association with an extrusion apparatus in the production of units of extruded products in which said extrusion apparatus includes a die plate and means for feeding extrudable material to one side of said die plate for extrusion therethrough, said die plate having at its opposite side a face convexly curved in one direction, and said cutter mechanism comprising a thin, flexible blade having a sharpened cutting edge, means supporting said blade for movement along said face of said die plate in a cutting stroke in a direction transverse to said one direction, and means maintaining the cutting edge of said blade against said surface of said die during said cutting stroke.
Claim 2
Dependent Claim
117 words
A cutter mechanism and die for association with an extrusion apparatus in the production of units of extruded products in which said extrusion apparatus includes a die plate and means for feeding extrudable material to one side of said die plate for extrusion therethrough, said die plate having at its opposite side a face convexly curved in one direction, and said cutter mechanism comprising a thin, flexible blade having a sharpened cutting edge, means supporting said blade for movement along said face of said die plate in a cutting stroke in a direction transverse to said one direction, and means maintaining the cutting edge of said blade against said surface of said die during said cutting stroke.
Claim 3
Dependent Claim
48 words
A mechanism as defined in claim 1 wherein said supporting means for said blade also supports said blade for a return stroke following said cutting stroke and there is means cooperating with said supporting means to move said blade away from said die face during said return stroke.
Claim 4
Dependent Claim
47 words
A mechanism as defined in claim 1 whErein said supporting means includes a rack, there is means on said rack for attachment of the blade thereto, and there is means for adjustably positioning said attachment means to control the contact of said blade against said die face.
Claim 5
Dependent Claim
18 words
A mechanism as defined in claim 3 wherein said attaching means includes means for longitudinally tensioning said blade.
Claim 6
Dependent Claim
21 words
A mechanism as defined in claim 4 wherein said means for tensioning said blade includes means for adjusting the tension thereof.
Claim 7
Dependent Claim
88 words
A mechanism as defined in claim 1 wherein said die face has opposite edges and the means supporting said blade for movement across the die comprises a rack having a first bracket to which one end of the blade is secured adjacent one edge of said die face and a second bracket including means relatively remote from the other edge of said face to which the other end of said blade is secured and a guide bracket for said blade relatively adjacent said other edge of said face.
Claim 8
Dependent Claim
29 words
A mechanism as defined in claim 6 wherein said first bracket and said guide bracket include adjustment means for controlling the contact of the blade with said die face.
Claim 9
Dependent Claim
18 words
A mechanism as defined in claim 7 wherein said second bracket includes resilient means for tensioning said blade.
Claim 10
Dependent Claim
27 words
A mechanism as defined in claim 8 wherein said second bracket additionally includes means for adjusting the tension applied to said blade by said resilient tensioning means.
Claim 11
Dependent Claim
48 words
A mechanism as defined in claim 2 wherein there is means adapting said supporting means for movement in a vertical direction relatively to said die face and said means for moving said blade away from said die face comprises means for moving said supporting means in said direction.
Claim 12
Dependent Claim
35 words
A mechanism as defined in claim 10 wherein said means for moving said supporting means away from said die face comprises a pivoted lever arm and cam means for raising and lowering said lever arm.
Claim 13
Dependent Claim
60 words
A mechanism as defined in claim 1 wherein said means for supporting said blade for movement across said face in a cutting stroke supports said blade in a return stroke and there is means causing said cutting and return strokes of said blade, said last named means comprising a pivoted lever arm and cam means for operating said lever arm.
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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) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |