Patent US2388812A successfully refreshed from Google Patents.
US3172159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container molding machine
Assignee: Illinois Tool Works Inc
•
Filing: 1962-12-07
•
Granted: 1965-03-09
•
Expires: 1982-12-07
Abstract
No abstract record available.
Inventors
- 👤 Edwards Bryant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:46
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/26; B29C51/30; B29C51/32; B29C51/04; B29C51/18; B29C33/00; B29C33/44; B29C33/48; B29C33/485; B29C51/08; B29C51/082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A MACHINE FOR FORMING THIN-WALLED CONTAINERS OF THERMOPLASTIC MATERIAL COMPRISING A MOLD HAVING A CAVITY COMPLEMENTARY IN SHAPE TO THE CONTAINERS AND HAVING AN OPEN MOUTH, A MANDREL SPACED FROM SAID MOLD CAVITY AND ALIGNED THEREWITH, MEANS FOR POSITIONING A SHEET OF THERMOPLASTIC MATERIAL HEATED TO PLASTIC TEMPERATURE INTERMEDIATE SAID MANDREL AND SAID MOLD CAVITY, SAID MANDREL HAVING AN ENTERING END AND SIDE WALLS ENGAGEABLE WITH SAID SHEET OF HEATED THERMOPLASTIC MATERIAL UPON RELATIVE ADVANCING OF SAID MANDREL TOWARD SAID MOLD, AT LEAST SAID ENTERING END AND SAID SIDE WALLS BEING OF FOAMED PLASTIC MATERIAL TO CONTROL SLIPPAGE OF SAID MATERIAL ACROSS SAID MANDREL ENTERING END AND TO AVOID EXTRACTION OF HEAT FROM SAID HEATED THERMOPLASTIC MATERIAL, AND MEANS FOR RELATIVELY ADVANCING SAID MANDREL AND SAID MOLD TOWARD ONE ANOTHER MECHANICALLY TO DRAW SAID MATERIAL OVER SAID MANDREL AND INTO SAID MOLD CAVITY.
Claim 2
Dependent Claim
143 words
A MACHINE FOR FORMING THIN-WALLED CONTAINERS OF THERMOPLASTIC MATERIAL COMPRISING A MOLD HAVING A CAVITY COMPLEMENTARY IN SHAPE TO THE CONTAINERS AND HAVING AN OPEN MOUTH, A MANDREL SPACED FROM SAID MOLD CAVITY AND ALIGNED THEREWITH, MEANS FOR POSITIONING A SHEET OF THERMOPLASTIC MATERIAL HEATED TO PLASTIC TEMPERATURE INTERMEDIATE SAID MANDREL AND SAID MOLD CAVITY, SAID MANDREL HAVING AN ENTERING END AND SIDE WALLS ENGAGEABLE WITH SAID SHEET OF HEATED THERMOPLASTIC MATERIAL UPON RELATIVE ADVANCING OF SAID MANDREL TOWARD SAID MOLD, AT LEAST SAID ENTERING END AND SAID SIDE WALLS BEING OF FOAMED PLASTIC MATERIAL TO CONTROL SLIPPAGE OF SAID MATERIAL ACROSS SAID MANDREL ENTERING END AND TO AVOID EXTRACTION OF HEAT FROM SAID HEATED THERMOPLASTIC MATERIAL, AND MEANS FOR RELATIVELY ADVANCING SAID MANDREL AND SAID MOLD TOWARD ONE ANOTHER MECHANICALLY TO DRAW SAID MATERIAL OVER SAID MANDREL AND INTO SAID MOLD CAVITY.
References Cited (Backward Citations)
US1492510A
Cited
US1793089A
Cited
US2190807A
Cited
US2260667A
Cited
US2282423A
Cited
US2348871A
Cited
US2531539A
Cited
US2796634A
Cited
US2962758A
Cited
US3081491A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |