US3632258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Confectionery bar extruding machine
Assignee: NID Pty Ltd
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Filing: 1969-12-02
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Granted: 1972-01-04
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Expires: 1989-12-02
Abstract
Abstract Apparatus for making a strip of dough having a roller with at least one circumferential groove and driving means to rotate the roller. The groove is preferably covered with a nonsticking material such as polytetrafluroethylene. A barrier makes sliding contact with the roll (except for a space between it and the floor of the groove) to define a pressure zone so as to fill the groove within the zone with dough. Stripping means removes the dough from the groove as a continuous strip, after it has been carried past the space between the groove bottom and the barrier.
Inventors
- 👤 Hans Arthur Faerber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:11
CPC Classifications
A; A23; A23G; A23G3/00; A23G3/02; A23G3/0236; A23G3/0242
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
114 words
Apparatus for producing a strip of plastic material, as defined herein, comprising a roller with a circumferential groove therein, drive means to rotate the roller, material barrier means making sliding contact with the roll, except for a space between said barrier means and the floor of said groove, and defining a pressure zone of the curved surface of the roller, feeder means to maintain a mass of the plastic material in pressure contact with said pressure zone thereby to fill the groove within said zone with plastic material, and stripping means able to remove plastic material from said groove, after it has been carried from said zone through said space, as a continuous strip.
Claim 2
Dependent Claim
114 words
Apparatus for producing a strip of plastic material, as defined herein, comprising a roller with a circumferential groove therein, drive means to rotate the roller, material barrier means making sliding contact with the roll, except for a space between said barrier means and the floor of said groove, and defining a pressure zone of the curved surface of the roller, feeder means to maintain a mass of the plastic material in pressure contact with said pressure zone thereby to fill the groove within said zone with plastic material, and stripping means able to remove plastic material from said groove, after it has been carried from said zone through said space, as a continuous strip.
Claim 3
Dependent Claim
34 words
Apparatus according to claim 1 wherein said grooved roller has a plurality of grooves in it and wherein said feeder means, material barrier means and stripping means operate in relation to each groove simultaneously.
Claim 4
Dependent Claim
23 words
Apparatus according to claim 1 wherein said grooved roller is made of a substance to which said plastic material tends not to adhere.
Claim 5
Dependent Claim
10 words
Apparatus according to claim 3 wherein said substance is polytetrafluoroethylene.
Claim 6
Dependent Claim
54 words
Apparatus according to claim 1 wherein said feeder means comprise a hopper for the temporary storage of a quantity of said plastic material, a feed roll adapted when rotating to drag said plastic material from said hopper and urge it towards said pressure zone, and feed roll driving means to rotate said feed roll.
Claim 7
Dependent Claim
12 words
Apparatus according to claim 5 wherein said feed roll, is helically fluted.
Claim 8
Dependent Claim
64 words
Apparatus according to claim 1 wherein said feeder means comprise a hopper for the temporary storage of a quantity of said plastic material, at least two feed rolls adapted when rotating in opposite directions to drag said plastic material from said hopper between them and urge it towards said pressure zone, and feed roll driving means to rotate said feed rolls in opposite directions.
Claim 9
Dependent Claim
55 words
Apparatus according to claim 1 wherein said material barrier means comprise a pair of spaced doctor blades, one of which enters the groove, of the grooved roller to prevent the escape of any plastic material past it and the other of which enters the groove to a point spaced from the floor of the groove.
Claim 10
Dependent Claim
13 words
Apparatus according to claim 1 wherein said barrier means are adjustable in position.
Claim 11
Dependent Claim
32 words
Apparatus according to claim 1 wherein said material barrier means include a secondary rubbing Surface adapted to bear against the exposed surface of the plastic material as it emerges through said space.
Claim 12
Dependent Claim
25 words
Apparatus according to claim 1 wherein said stripping means comprise a blade associated with said groove, adapted to prise the plastic material from the groove.
Claim 13
Dependent Claim
14 words
Apparatus according to claim 11 wherein said blade, is provided with a replaceable tip.
Claim 14
Dependent Claim
13 words
Apparatus according to claim 12 wherein said replaceable tip is composed of polytetrafluoroethylene.
Claim 15
Dependent Claim
29 words
Apparatus according to claim 11 wherein said stripping means further comprise a manifold element which together with said blade defines an outlet duct extending substantially tangentially from the groove.
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) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |