US3762849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injection moulding machines particularly to the injection head thereof and to the injection moulds used therewith
Assignee: Individual
•
Filing: 1971-06-10
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Granted: 1973-10-02
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Expires: 1991-06-10
Abstract
Abstract The invention pertains to improvements to injection moulding machines, according to which said machine is provided with an easily removable injection head designed to contain a supply of synthetic resin material sufficient to mould a series of objects within a mould provided with a closing device.
Inventors
- 👤 K Claes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:38
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/46; B29C45/26; B29C45/27; B29C45/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
108 words
In an injection moulding machine having an injection head and a mould adapted to receive injection material from said injection head, wherein said injection head comprises a pressure rod, a sealing member connected to an outer end of said pressUre rod, an extension part connected to said sealing member and extending beyond said sealing member, a removable filling cylinder having an outer end with an opening directed to said mould, and a plug located in said cylinder adjacent an inner end thereof and having a blind bore, said extension part fitting into said bore and inside said cylinder when said inner end is attached to said moulding machine.
Claim 2
Dependent Claim
108 words
In an injection moulding machine having an injection head and a mould adapted to receive injection material from said injection head, wherein said injection head comprises a pressure rod, a sealing member connected to an outer end of said pressUre rod, an extension part connected to said sealing member and extending beyond said sealing member, a removable filling cylinder having an outer end with an opening directed to said mould, and a plug located in said cylinder adjacent an inner end thereof and having a blind bore, said extension part fitting into said bore and inside said cylinder when said inner end is attached to said moulding machine.
Claim 3
Dependent Claim
45 words
A machine in accordance with claim 1, wherein said mould comprises a casing having an injection opening, braces located on opposite sides of said opening, a cover fitting between said braces and adapted to claose said opening and means pressing said cover against said opening.
Claim 4
Dependent Claim
16 words
A machine in accordance with claim 2, wherein said braces extend diagonally relatively to each other.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |