US3604054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making shaped foam articles
Assignee: Maschinenfabrik Hennecke GmbH
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Filing: 1969-11-26
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Granted: 1971-09-14
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Expires: 1989-11-26
Abstract
Abstract For the production of foamed rods an endless conveyor belt is used which carries the underpart of the foaming mold, while the upper part of the foaming mold is rigidly fixed above the conveyor belt.
Inventors
- 👤 Karl-Heinz Eisenmann
- 👤 Ferdinand Proska
- 👤 Bergisch Neukirchen
- 👤 Willi Schmitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:16
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/20; B29C44/32; B29C44/322; B29C44/324
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
102 words
Apparatus suitable for continuous moulding of elongated shaped elements of foamed plastic comprising: a. only one band, endless conveyor having an upper flight and a lower flight, b. a stationary mould member mounted over the upper flight and forming the upper portion of the mould, c. a moving mould member composed of moving mould member elements mounted on the outwardly disposed side of the conveyor band, said moving mould elements being in abutting relation as they travel over said upper flight providing the moving mould member as a continuous lower portion of the mould disposed on the upper flight of the conveyor.
Claim 2
Dependent Claim
102 words
Apparatus suitable for continuous moulding of elongated shaped elements of foamed plastic comprising: a. only one band, endless conveyor having an upper flight and a lower flight, b. a stationary mould member mounted over the upper flight and forming the upper portion of the mould, c. a moving mould member composed of moving mould member elements mounted on the outwardly disposed side of the conveyor band, said moving mould elements being in abutting relation as they travel over said upper flight providing the moving mould member as a continuous lower portion of the mould disposed on the upper flight of the conveyor.
Claim 3
Dependent Claim
46 words
Apparatus as claimed in claim 1, and means for supplying a supporting film to the inlet end of the mould to line the mould and envelope the foaming material, and means for depositing material for foaming on the foil adjacent the inlet end of the mould.
Claim 4
Dependent Claim
15 words
Apparatus as claimed in claim 1, wherein the stationary mould member is provided with perforations.
Claim 5
Dependent Claim
37 words
Apparatus as claimed in claim 1, wherein the stationary mould member comprises two stationary mould elements the adjacent portions thereof along the uppermost part of the stationary mould member, being spaced, providing a vent for the mould.
Claim 6
Dependent Claim
30 words
Apparatus as claimed in claim 1, wherein the stationary and moving mould members are in sliding surface contact whereby a seal is provided between the stationary and moving mould members.
Claim 7
Dependent Claim
28 words
Apparatus as claimed in claim 2, wherein the inlet end of the stationary mould member is rounded off to facilitate entry of the supporting film into the mould.
Claim 8
Dependent Claim
16 words
Apparatus as claimed in claim 1, wherein the mould members are removably mounted on the apparatus.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |