US3255497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming foundry molds for casting pipes
Assignee: Herman Pneumatic Machine Co
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Filing: 1965-03-22
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Granted: 1966-06-14
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Expires: 1985-03-22
Abstract
No abstract record available.
Inventors
- 👤 Loyal L Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:30
CPC Classifications
B; B22; B22C; B22C13/00; B22C13/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
MOLD FORMING APPRATUS COMPRISING A FLASK ADAPTED TO CONTAIN FINELY DIVIDED MOLD FORMING MATERIAL, A HUB PATTERN, MEANS SUPPORTING THE HUB PATTERN INSIDE AN END OF THE FLASK, A FORMER SNUGLY FITTING WITHIN THE HUB PATTERN, MEANS ATTACHED TO THE UPPER END OF THE FORMER FOR ADVANCING THE FORMER OUT OF THE HUB PATTERN AND THROUGH THE FLASK TO COMPACT FINELY DIVIDED MOLD FORMING MATERIAL IN THE FLASK TO FORM A MOLD, A GUIDE ROD CONNECTED WITH THE FORMER OF SMALLER DIAMETER THAN THE FORMER AND EXTENDING THEREFROM IN A DIRECTION AWAY FROM THE FLASK, AND A GUIDE ALSO EXTENDING IN THE DIRECTION AWAY FROM THE FLASK IN WHICH THE GUIDE ROD IS SNUGLY RECEIVED TO GUIDE THE FORMER AFTER THE FORMER HAS EMERGED FROM THE HUB PATTERN, THE LENGTH OF THE GUIDE ROD BEING GREATER THAN THE DISTANCE BETWEEN THE INNER END OF THE HUB PATTERN AND THE INNER END OF THE GUIDE SO THAT AS THE FORMER AND GUIDE ROD ARE INTRODUCED INTO THE FLASK FROM THE OPPOSITE END OF THE FLASK FOR THE BEGINNING OF A MOLD FORMING OPERATION THE GUIDE ROD ENTERS THE GUIDE BEFORE THE FORMER ENTERS THE HUB PATTERN AND GUIDES THE FORMER INTO THE HUB PATTERN.
Claim 2
Dependent Claim
203 words
MOLD FORMING APPRATUS COMPRISING A FLASK ADAPTED TO CONTAIN FINELY DIVIDED MOLD FORMING MATERIAL, A HUB PATTERN, MEANS SUPPORTING THE HUB PATTERN INSIDE AN END OF THE FLASK, A FORMER SNUGLY FITTING WITHIN THE HUB PATTERN, MEANS ATTACHED TO THE UPPER END OF THE FORMER FOR ADVANCING THE FORMER OUT OF THE HUB PATTERN AND THROUGH THE FLASK TO COMPACT FINELY DIVIDED MOLD FORMING MATERIAL IN THE FLASK TO FORM A MOLD, A GUIDE ROD CONNECTED WITH THE FORMER OF SMALLER DIAMETER THAN THE FORMER AND EXTENDING THEREFROM IN A DIRECTION AWAY FROM THE FLASK, AND A GUIDE ALSO EXTENDING IN THE DIRECTION AWAY FROM THE FLASK IN WHICH THE GUIDE ROD IS SNUGLY RECEIVED TO GUIDE THE FORMER AFTER THE FORMER HAS EMERGED FROM THE HUB PATTERN, THE LENGTH OF THE GUIDE ROD BEING GREATER THAN THE DISTANCE BETWEEN THE INNER END OF THE HUB PATTERN AND THE INNER END OF THE GUIDE SO THAT AS THE FORMER AND GUIDE ROD ARE INTRODUCED INTO THE FLASK FROM THE OPPOSITE END OF THE FLASK FOR THE BEGINNING OF A MOLD FORMING OPERATION THE GUIDE ROD ENTERS THE GUIDE BEFORE THE FORMER ENTERS THE HUB PATTERN AND GUIDES THE FORMER INTO THE HUB PATTERN.
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) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |