Patent US3138826A successfully refreshed from Google Patents.
US3138826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-automatic forming machine and process
Assignee: Sun Chemical Corp
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Filing: 1961-10-12
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Granted: 1964-06-30
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Expires: 1981-10-12
Abstract
No abstract record available.
Inventors
- 👤 William A Jacobs
- 👤 Kenneth A Hornung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:37
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/18; B29C51/26; B29C51/261; B29K; B29K2105/00; B29K2105/04; Y; Y10; Y10S; Y10S425/00; Y10S425/048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A MACHINE FOR DRAW-FORMING FLAT-WARE ARTICLES FROM FOAMED THERMOPLASTIC SHEETS COMPRISING MOVBLE MEANS FOR CLAMPING SAID SHEETS IN POSITION FOR DRAW-FORMING; HEATING MEANS FOR APPLYING HEAT TO SAID SHEETS; DRAWFORMING MEANS BETWEEN SAID MOVABLE MEANS AND SAID HEATING MEANS, SAID MOVABLE MEANS BEING MOVABLE PAST SAID OPERABLE ON SAID MOVABLE MEANS FOR EJECTING SAID MOVABLE MEANS OUT OF SAID HEATING MEANS INTO DRAW-FORMING POSITION WITH RELATION TO SAID DRAW-FORMING MEANS; STOP MEANS FOR STOPPING SAID MOVABLE MEANS WHEN IT REACHES ITS DRAW-FORMING POSITION IN RELATION TO SAID DRAW-FORMING MEANS; FIRST TIMING MEANS ACTUABLE BY SAID MOVABLE MEANS WHEN IT IS POSITIONED IN SAID HEATING MEANS FOR ACTUATING SAID TIMED MEANS AFTER THE EXPIRATION OF A PREDETERMINED TIME; AND SECOND TIMING MEANS ACTUABLE BY SAID MOVABLE MEANS WHEN IT IS POSITIONED IN SAID DRAW-FORMING MEANS, SAID TIMING MEANS SEQUENTIALLY ACTUATING, RETRACTING AND DEACTUATING SAID DRAW-FORMING MEANS.
Claim 2
Dependent Claim
145 words
A MACHINE FOR DRAW-FORMING FLAT-WARE ARTICLES FROM FOAMED THERMOPLASTIC SHEETS COMPRISING MOVBLE MEANS FOR CLAMPING SAID SHEETS IN POSITION FOR DRAW-FORMING; HEATING MEANS FOR APPLYING HEAT TO SAID SHEETS; DRAWFORMING MEANS BETWEEN SAID MOVABLE MEANS AND SAID HEATING MEANS, SAID MOVABLE MEANS BEING MOVABLE PAST SAID OPERABLE ON SAID MOVABLE MEANS FOR EJECTING SAID MOVABLE MEANS OUT OF SAID HEATING MEANS INTO DRAW-FORMING POSITION WITH RELATION TO SAID DRAW-FORMING MEANS; STOP MEANS FOR STOPPING SAID MOVABLE MEANS WHEN IT REACHES ITS DRAW-FORMING POSITION IN RELATION TO SAID DRAW-FORMING MEANS; FIRST TIMING MEANS ACTUABLE BY SAID MOVABLE MEANS WHEN IT IS POSITIONED IN SAID HEATING MEANS FOR ACTUATING SAID TIMED MEANS AFTER THE EXPIRATION OF A PREDETERMINED TIME; AND SECOND TIMING MEANS ACTUABLE BY SAID MOVABLE MEANS WHEN IT IS POSITIONED IN SAID DRAW-FORMING MEANS, SAID TIMING MEANS SEQUENTIALLY ACTUATING, RETRACTING AND DEACTUATING SAID DRAW-FORMING MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |