US4015920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for producing molded articles from foamable plastics
Assignee: Herbert Kannegiesser GmbH and Co
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Filing: 1975-06-13
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Granted: 1977-04-05
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Expires: 1995-06-13
Abstract
Abstract Apparatus for producing molded objects from foamable plastics in which a bipartite mold is secured to two movable clamping plates. One of the clamping plates is movable through at least an angle of 180° from a parallel position with respect to the other clamping plate.
Inventors
- 👤 Jean-Pierre Niederst
- 👤 Karl Holzinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:16
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/38; B29C44/42; B29C44/428; B29C33/00; B29C33/20; B29C33/30
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
184 words
In a device for producing molded articles from foamable plastics, such as polyurethane, wherein a bipartite mold in which the molded articles are foamed is secured to two clamping plates of a mold carrier disposed on top of one another and one of the two clamping plates is movable towards the other clamping plate and returnable to its initial position while maintaining it parallel position to the other clamping plate by means of working cylinders, the improvement comprising: the second clamping plate of said mold carrier which is not movable by means of the working cylinders is mounted to be pivotable out of its position with respect to the first clamping plate about a pivot axis disposed laterally thereto through an angle of at least 180° from a parallel position with respect to the first clamping plate, and the mold carrier with the two clamping plates is pivotable about a first axis parallel to the pivot axis of the second clamping plate and about a second axis disposed at right angles to its first axis and laterally with respect to the two clamping plates.
Claim 2
Dependent Claim
184 words
In a device for producing molded articles from foamable plastics, such as polyurethane, wherein a bipartite mold in which the molded articles are foamed is secured to two clamping plates of a mold carrier disposed on top of one another and one of the two clamping plates is movable towards the other clamping plate and returnable to its initial position while maintaining it parallel position to the other clamping plate by means of working cylinders, the improvement comprising: the second clamping plate of said mold carrier which is not movable by means of the working cylinders is mounted to be pivotable out of its position with respect to the first clamping plate about a pivot axis disposed laterally thereto through an angle of at least 180° from a parallel position with respect to the first clamping plate, and the mold carrier with the two clamping plates is pivotable about a first axis parallel to the pivot axis of the second clamping plate and about a second axis disposed at right angles to its first axis and laterally with respect to the two clamping plates.
Claim 3
Dependent Claim
33 words
A device as claimed in claim 1, characterized that a rotary piston cylinder is disposed on the mold carrier for pivoting the pivotable clamping plate, said rotary piston positioned on said pivot axis.
Claim 4
Dependent Claim
56 words
A device as claimed in claim 1, characterized that said mold carrier is mounted on a frame and the second axis about which the mold carrier is pivotable is disposed in such a way that the frame is simultaneously pivotable with said carrier and that the second axis corresponds to an outer edge of the frame.
Claim 5
Dependent Claim
35 words
A device as claimed in claim 1, characterized that the second clamping plate which is pivotable about the pivot axis is not movable by the working cylinders and is rotatably mounted in a U-shaped yoke.
Claim 6
Dependent Claim
20 words
A device as claimed in claim 4, characterized in that the pivotable second clamping plate comprises two parallel clamping surfaces.
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) | 1980-04-04 | 1980-10-04 | 1981-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-04 | 1984-10-04 | 1985-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-04 | 1988-10-04 | 1989-04-05 | $7700.00 | Window Closed / Lapsed |