US4260355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the discontinuous production of block foam
Assignee: Maschinenfabrik Hennecke GmbH
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Filing: 1980-01-02
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Granted: 1981-04-07
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Expires: 2000-01-02
Abstract
Abstract The invention is directed to a device for the discontinuous production of block foam comprising a mixing unit, a means for moving the unit approximately vertically into and/or out of a mold with the unit having reaction component feed lines, a stirring means, and a mixing container having a plate with feed openings for the reaction components characterized in that (A) a distributing device is arranged below the feed opening for one of the components and (B) the mixing container comprises a bottomless cylindrical shell, the lower rim of which can be placed on the bottom of the mold.
Inventors
- 👤 Lothar Rohrig
- 👤 Gottfried Bucher
- 👤 Horst Klahre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:22
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/02; B29B7/06; B29B7/10; B01; B01F; B01F27/00; B01F27/80; B01F27/805; B01F27/806; B01F35/00; B01F35/71; B01F35/717; B01F35/71805; B01F35/718051; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/38; B29C44/383; Y; Y10; Y10S; Y10S521/00; Y10S521/917
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
114 words
A device for the discontinuous production of block foam comprising a mixing unit with a means for moving said unit approximately vertically into and/or out of a mold and with said mixing unit comprising reaction component feed lines, a stirring means, and a mixing container having a plate with feed openings for the reaction components characterized in that (A) a distributing device is arranged below a vertical opening for one of said components and the top of said distributing device is in substantially axial alignment with said vertical feed opening and (B) said mixing container comprises a bottomless cylindrical shell, the lower rim of which can be placed on the bottom of said mold.
Claim 2
Independent Claim
114 words
A device for the discontinuous production of block foam comprising a mixing unit with a means for moving said unit approximately vertically into and/or out of a mold and with said mixing unit comprising reaction component feed lines, a stirring means, and a mixing container having a plate with feed openings for the reaction components characterized in that (A) a distributing device is arranged below a vertical opening for one of said components and the top of said distributing device is in substantially axial alignment with said vertical feed opening and (B) said mixing container comprises a bottomless cylindrical shell, the lower rim of which can be placed on the bottom of said mold.
Claim 3
Dependent Claim
27 words
A device as claimed in claim 1, characterized in that the distance of said distributing device from said feed opening for one of said components is adjustable.
Claim 4
Dependent Claim
16 words
A device as claimed in claim 1, characterized in that said distributing device comprises a rotor.
Claim 5
Dependent Claim
16 words
A device as claimed in claim 2, characterized in that said distributing device comprises a rotor.
Claim 6
Dependent Claim
18 words
A device as claimed in claim 1, characterized in that said distributing device is conical, semi-spherical, or paraboloidal.
Claim 7
Dependent Claim
18 words
A device as claimed in claim 3, characterized in that said distributing device is conical, semi-spherical, or paraboloidal.
Claim 8
Dependent Claim
38 words
A device as claimed in claim 1 or 6, characterized in that said stirring means comprises a stirrer having a shaft, and the surface of said distributing device has an indentation sloping towards said shaft of said stirrer.
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) | 1984-04-06 | 1984-10-06 | 1985-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-06 | 1988-10-06 | 1989-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-06 | 1992-10-06 | 1993-04-07 | $7700.00 | Window Closed / Lapsed |