US3577597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support for injection-molding machine
Assignee: HERBERT T DRAUDT
•
Filing: 1968-09-20
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Granted: 1971-05-04
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Expires: 1988-09-20
Abstract
Abstract Apparatus for molding articles from thermoplastics wherein the moldable plastic material is plasticized and injected into a mold cavity. The plasticizing and injecting unit is pivotally mounted in a frame fixed relative to the mold and the unit may be released at one end of the frame and swung away from the mold to facilitate cleaning.
Inventors
- 👤 Donald A Draudt
- 👤 Herbert T Draudt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:17
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/1773; B29C45/03; B29C45/07
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
32 words
Apparatus as defined in claim 1 wherein said plasticizing and injecting unit is supported on a trunnion bar, the trunnions at the opposite ends of said bar being journaled in said frame.
Claim 2
Dependent Claim
55 words
Apparatus as defined in claim 1 wherein said nozzle when in said operating position is movable linearly parallel said sprue face between a position wherein the nozzle port registers with said mold sprue and a position wherein said nozzle port is out of registration with said mold sprue to block the exit of plasticized material.
Claim 3
Dependent Claim
89 words
Apparatus as defined in claim 3 wherein said means for fastening said plasticizing and injecting unit to said frame comprises a yoke fastened to said frame on opposite side of said plasticizing and injecting unit an adjustable member threadedly mounted in said yoke intermediate the ends thereof and being operable to force said plasticizing and injecting unit toward said mold to press said sprue face and roller means carried by said adjustable member and engageable with said plasticizing and injecting unit to accommodate said linear movement of said nozzle.
References Cited (Backward Citations)
US2274800A
Cited
US2530262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |