US3732049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the manufacture of granulated material
Assignee: Individual
•
Filing: 1971-04-12
•
Granted: 1973-05-08
•
Expires: 1991-04-12
Abstract
Abstract An apparatus for manufacturing granulated material wherein a press or compression cylinder for a plastic molding material possesses a discharge end which can be closed by a counter piston. Between the peripheral edge of the compression cylinder and the peripheral edge of the counter piston there is provided a substantially ring-shaped throughpassage. Groove means are formed at least at one of the peripheral edges and through which groove means the molding material or mass can be pressed in the form of rods or strands. A rotating cutting element is mounted at the counter piston for the purpose of cutting these strands or rods.
Inventors
- 👤 H Studli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:19
CPC Classifications
B; B29; B29B; B29B9/00; B29B9/02; B29B9/06; B29B9/065; B30; B30B; B30B11/00; B30B11/22; B30B11/221; B30B11/227
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
125 words
In an apparatus for manufacturing granular material, comprising: a press cylinder having a discharge end for plastic molding material, and a counter piston means for sealing off said discharge end of said press cylinder, the improvement comprising means for causing said press cylinder and counter piston means to cooperate with one another to form a substantially ringshaped die having radially extended throughpassages for material located between a peripheral margin of said press cylinder and a peripheral margin of said counter piston means, groove means formed at least at one of said peripheral margins for having pressed therethrough the molding material in strand form, and rotatable cutting means mounted at said counter piston means for rotation around said ring-shaped throughpassage for cutting the strands of material.
Claim 2
Dependent Claim
125 words
In an apparatus for manufacturing granular material, comprising: a press cylinder having a discharge end for plastic molding material, and a counter piston means for sealing off said discharge end of said press cylinder, the improvement comprising means for causing said press cylinder and counter piston means to cooperate with one another to form a substantially ringshaped die having radially extended throughpassages for material located between a peripheral margin of said press cylinder and a peripheral margin of said counter piston means, groove means formed at least at one of said peripheral margins for having pressed therethrough the molding material in strand form, and rotatable cutting means mounted at said counter piston means for rotation around said ring-shaped throughpassage for cutting the strands of material.
Claim 3
Dependent Claim
31 words
The apparatus as defined in claim 1, further comprising: means for selectively displacing said counter piston means away from said press cylinder, whereby said groove means may be more easily cleaned.
Claim 4
Dependent Claim
98 words
The apparatus as defined in claim 2, further comprising: means for compressing the molding material within said press cylinder, said displacing means for said counter piston means functioning also to place the counter piston forceably against the press cylinder to exert a counter pressure which counteracts the pressure of the molding material within said press cylinder, said counter pressure being somewhat greater than the pressure of the molding material so that the counter piston means is pressed against said press cylinder due to the pressure difference prevailing between said counter pressure and the pressure of said molding material.
Claim 5
Dependent Claim
33 words
The apparatus as defined in claim 3, further including electric drive motor means for rotating said rotatable cutting means, and means for supporting said electric drive motor means upon said counter piston means.
Claim 6
Dependent Claim
24 words
The apparatus as defined in claim 1, wherein said groove means are formed as a rim at the periphery of said counter piston means.
Claim 7
Dependent Claim
16 words
The apparatus as defined in claim 5, wherein said groove rim possesses a substantially cone-shaped configuration.
References Cited (Backward Citations)
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US2476272A
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US3025564A
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US3389204A
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US3388431A
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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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |