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US4389183A
Expired / Lapsed
US
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External frame injection molding apparatus
Assignee: Pont a Mousson SA
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Filing: 1980-10-03
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Granted: 1983-06-21
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Expires: 2000-10-03
Abstract
Abstract A plastic injection molding device comprises a fixed plate 5 and a movable plate 7 bearing the two halves of a mold 3, a fixed plate 10 forming a bed, and hydraulic jacks 15, 17, 20 for moving and locking the plate 7. The plates are fixed or slidably mounted within a plurality of parallel hollow rectangular frames 11 which evenly distribute the forces transmitted by the fixed plates.
Inventors
- 👤 Jean Laurent
- 👤 Bernard Monnet
- 👤 Philippe Pertuis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:40
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/1761
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
112 words
A device for the injection molding of plastic articles or the like, said device having a generally horizontal axis and comprising a fixed first plate and a movable second plate respectively bearing the two halves of a mold, a fixed third plate or bed, and means for moving the movable second plate and for urging the two halves of the mold together, characterized by: the fixed first plate (5) and the bed (10) being mounted within at least two hollow rectangular frames (11) disposed parallel to each other, said frames being independently suspendedly supported by the fixed plate (5) and the bed (10) with no rigid connections between ones of said frames.
Claim 2
Independent Claim
112 words
A device for the injection molding of plastic articles or the like, said device having a generally horizontal axis and comprising a fixed first plate and a movable second plate respectively bearing the two halves of a mold, a fixed third plate or bed, and means for moving the movable second plate and for urging the two halves of the mold together, characterized by: the fixed first plate (5) and the bed (10) being mounted within at least two hollow rectangular frames (11) disposed parallel to each other, said frames being independently suspendedly supported by the fixed plate (5) and the bed (10) with no rigid connections between ones of said frames.
Claim 3
Dependent Claim
19 words
The molding device of claim 1, wherein the frames are borne by support profiles (12) bearing on the plates.
Claim 4
Dependent Claim
23 words
The molding device of any one of claims 1 to 2, wherein a frame is positioned on each side of each support profile.
Claim 5
Dependent Claim
19 words
The molding device of any one of claims 1 to 3, wherein the plates are produced from modular elements.
Claim 6
Dependent Claim
29 words
The molding device of any one of claims 1 to 3, wherein a fixed plate situated between the movable plate (7) and the bed (10) supports the frames (11).
Claim 7
Dependent Claim
39 words
The molding device of any one of claims 1 to 3, wherein at least one dimension of each of said frames is varied in accordance with the proportion of the total force produced during molding borne by said frame.
Claim 8
Dependent Claim
40 words
The molding device of any one of claims 1 to 3, wherein said rectangular frames are provided in pairs, one of said profiles (4) providing separation for each of said pairs, a plurality of said pairs of frames being provided.
Claim 9
Dependent Claim
29 words
The molding device of claim 1, wherein a framework formed of profiles (4) bearing the plates (5, 7,10) provides the support for and the separation of the frames (11).
Claim 10
Dependent Claim
19 words
The molding device of claim 8, wherein the framework acts as a sliding support for the movable second plate.
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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) | 1986-06-20 | 1986-12-20 | 1987-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-20 | 1990-12-20 | 1991-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-20 | 1994-12-20 | 1995-06-21 | $7700.00 | Window Closed / Lapsed |