US3782879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding apparatus
Assignee: Holstein und Kappert Maschinenfabrik Phonix GmbH
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Filing: 1971-09-13
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Granted: 1974-01-01
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Expires: 1991-09-13
Abstract
Abstract A molding apparatus for thermoplastic material has a mold including two relatively movable mold sections. One or both of the mold sections are mounted on carriers for movement relative to the other, and adjusting means in form of springs or in form of superimposed fluid-tightly connected plates defining with one another a compartment which is extensible by pressure fluid, is interposed between at least one of the mold sections and its associated carrier so that the mold sections can be adjusted relative to one another and aligned in parallelism.
Inventors
- 👤 R Mnilk
- 👤 M Kurreck
- 👤 U Geltenpoth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:21
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/06; B29; B29C; B29C33/00; B29C33/20; B29C33/202; B29C49/00; B29C49/02; B29C49/04; B29C49/42; B29C49/48; B29C2033/205; B29C49/56; B29C2049/563; B29C2049/5635
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
178 words
In a molding apparatus for thermoplastic material, a combination comprising mold means including two mold sections; mounting means mounting at least one of said mold sections for movement relative to the other, said one mold section haVing a side facing away from said other mold section and being provided with a mounting member which has a surace facing away from said side and is formed with a substantially T-shaped recess; adjusting means intermediate said mounting means and said one mold section for enabling adjustable parallel alignment of said mold sections, said adjusting means including a pair of elastically distendable juxtaposed plates having outwardly directed surfaces and respective circumferential margins in sealing engagement with one another, said plates defining with each other a fluid-tight compartment surrounded by said margins, and pressure means for pressurizing said compartment with pressure fluid to thereby distend said plates to a controlable extent; and bolster means engaging said outwardly directed surfaces wherein said plates and bolster means are mounted in said recess and said bolsters are interposed between said mounting member and said plates.
Claim 2
Dependent Claim
178 words
In a molding apparatus for thermoplastic material, a combination comprising mold means including two mold sections; mounting means mounting at least one of said mold sections for movement relative to the other, said one mold section haVing a side facing away from said other mold section and being provided with a mounting member which has a surace facing away from said side and is formed with a substantially T-shaped recess; adjusting means intermediate said mounting means and said one mold section for enabling adjustable parallel alignment of said mold sections, said adjusting means including a pair of elastically distendable juxtaposed plates having outwardly directed surfaces and respective circumferential margins in sealing engagement with one another, said plates defining with each other a fluid-tight compartment surrounded by said margins, and pressure means for pressurizing said compartment with pressure fluid to thereby distend said plates to a controlable extent; and bolster means engaging said outwardly directed surfaces wherein said plates and bolster means are mounted in said recess and said bolsters are interposed between said mounting member and said plates.
Claim 3
Dependent Claim
45 words
In a molding apparatus as defined in claim 1, said mounting means having angled projections; and further comprising a holding element carrying said one mold section and including substantially U-shaped angled portions each of which is in meshing engagement with one of said angled projections.
Claim 4
Dependent Claim
28 words
In a molding apparatus as defined in claim 2, said projections and meshing portions having respective juxtaposed faces; and further comprising replaceable distancing members interposed between said faces.
References Cited (Backward Citations)
US2962761A
Cited
US3479696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |