US3914082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine base for injection molding machines
Assignee: Individual
•
Filing: 1973-04-18
•
Granted: 1975-10-21
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Expires: 1993-04-18
Abstract
Abstract A machine base for injection molding machines with a horizontally mounted die closing unit and a skid-supported horizontally aligned injection unit connected to the rear of the die closing unit, where the rectangular, block-shaped base is subdivided into a forward compartment for hydraulic controls and a rear compartment forming a tank, the die closing unit being mounted above the controls compartment, and the injection unit being supported by a cover plate on top of the tank compartment. The cover plate forms a rearwardly extending overhang protecting the motor of the hydraulic power unit and serving as a servicing support for the injection unit.
Inventors
- 👤 Karl Hehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:15
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/1761
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
199 words
A machine base for injection molding machines, especially for machines of the type which include a horizontally mounted die closing unit and a skid-supported horizontally aligned injection unit connected to the rear of the die closing uNit, comprising in combination: a generally rectangular, block-shaped base body which includes a floor panel, generally upright front and rear walls and adjoining side walls, thereby defining a base cavity; a tank compartment for hydraulic fluid arranged in the rear portion of the base body, the rear wall of the base also being the rear wall of the tank compartment; a horizontal mounting face on top of the forward portion of the base body for the support of the die closing unit; and a horizontal cover plate removably mounted on top of the rear portion of the base body for the support of the skids of the injection unit; the cover plate overhanging rearwardly a distance from the rear wall of the base body to form an extended supporting surface for the injection unit, when the latter is moved to the rear, out of engagement with the die closing unit, the cover plate thereby also serving as a cover for the tank compartment.
Claim 2
Dependent Claim
199 words
A machine base for injection molding machines, especially for machines of the type which include a horizontally mounted die closing unit and a skid-supported horizontally aligned injection unit connected to the rear of the die closing uNit, comprising in combination: a generally rectangular, block-shaped base body which includes a floor panel, generally upright front and rear walls and adjoining side walls, thereby defining a base cavity; a tank compartment for hydraulic fluid arranged in the rear portion of the base body, the rear wall of the base also being the rear wall of the tank compartment; a horizontal mounting face on top of the forward portion of the base body for the support of the die closing unit; and a horizontal cover plate removably mounted on top of the rear portion of the base body for the support of the skids of the injection unit; the cover plate overhanging rearwardly a distance from the rear wall of the base body to form an extended supporting surface for the injection unit, when the latter is moved to the rear, out of engagement with the die closing unit, the cover plate thereby also serving as a cover for the tank compartment.
Claim 3
Dependent Claim
28 words
A machine base as defined in claim 1, wherein: the cover plate includes a border reinforcement on both of its longitudinal edges and on its overhanging rear edge.
Claim 4
Dependent Claim
49 words
A machine base as defined in claim 2, wherein: the border reinforcement on the edges of the cover plate is in each case a downwardly extending ledge, the reinforcement ledges on the longitudinal edges of the cover plate being located laterally outside the side walls of the base body.
Claim 5
Dependent Claim
73 words
A machine base as defined in claim 1, further comprising: a hydraulic power unit with a pump and co-axial electric motor mounted on the rear wall of the base body in such a way that the power unit axis is substantially perpendicular to the rear wall; the pump being located inside the tank compartment, while the electric motor is located behind the rear wall underneath the rearwardly overhanging portion of the cover plate.
Claim 6
Dependent Claim
38 words
A machine base as defined in claim 4, wherein: the tank compartment includes an upright partition wall located between the front and rear walls of the base body and extending between the side walls of the base body.
Claim 7
Dependent Claim
41 words
A machine base as defined in claim 4, wherein: the tank compartment occupies the entire height of the machine base, between the floor panel and the cover plate, the pump of the hydraulic power unit being immersed in the hydraulic fluid.
Claim 8
Dependent Claim
48 words
A machine base as defined in claim 5, further comprising: a partially open controls compartment in the forward portion of the base body, the controls compartment occupying that portion of the base cavity which is located between the front wall and the partition wall of the base body.
Claim 9
Dependent Claim
46 words
A machine base as defined in claim 7, further comprising: a return filter for the hydraulic fluid mounted on the tank side of the partition wall; and a cooler for the hydraulic fluid mounted on the opposite side of the partition wall in the controls compartment.
Claim 10
Dependent Claim
40 words
A machine base as defined in claim 7, further comprising: hydraulic distribution means, including a bank of hydraulic control valves, mounted in the controls compartment on the side wall opposite the side on which the machine operator''s is normally positioned.
Claim 11
Dependent Claim
47 words
A machine base as defined in claim 9, wherein: the hydraulic control valves are of the solenoid type and are so arranged in relation to the side wall on which they are mounted that the solenoids protrude to the outside of the wall for servicing and inspection.
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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) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |