US3209406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary molding apparatus
Assignee: Walker Manufacturing Co
•
Filing: 1963-03-25
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Granted: 1965-10-05
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Expires: 1983-03-25
Abstract
No abstract record available.
Inventors
- 👤 John D Hopkins
- 👤 Clark J Hamkins
- 👤 Paul K Krause
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:30
CPC Classifications
D; D21; D21J; D21J7/00; B; B01; B01D; B01D27/00; B01D27/005; B29; B29C; B29C70/00; B29C70/04; B29C70/28; Y; Y10; Y10S; Y10S264/00; Y10S264/48; Y10S425/00; Y10S425/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
IN COMBINATION, A TURNTABLE, MEANS FOR INTERMITTENTLY INDEXING SAID TURNTABLE IN EQUAL ANGULAR INCREMENTS, A PLURALITY OF CIRCUMFERENTIALLY SPACED MOLDS CARRIED BY SAID TURNTABLE, EACH MOLD COMPRISING A MOLD CYLINDER HAVING A CLOSED END AND AN OPEN END, A COVER FOR EACH OPEN CYLINDER END MOVABLE BETWEEN OPEN AND CLOSED POSITIONS, A RAM SLIDABLE IN EACH CYLINDER TO A RETRACTED POSITION ADJACENT THE CLOSED CYLINDER END, A MOLDING POSITION ADJACENT AN INTERMEDIATE PORTION OF THE CYLINDER, AND AN EJECTING POSITION ADJACENT THE OPEN CYLINDER END, A HEAD FOR EACH MOLD SPACED AXIALLY FROM THE CLOSED CYLINDER END AND AC-
Claim 2
Dependent Claim
99 words
IN COMBINATION, A TURNTABLE, MEANS FOR INTERMITTENTLY INDEXING SAID TURNTABLE IN EQUAL ANGULAR INCREMENTS, A PLURALITY OF CIRCUMFERENTIALLY SPACED MOLDS CARRIED BY SAID TURNTABLE, EACH MOLD COMPRISING A MOLD CYLINDER HAVING A CLOSED END AND AN OPEN END, A COVER FOR EACH OPEN CYLINDER END MOVABLE BETWEEN OPEN AND CLOSED POSITIONS, A RAM SLIDABLE IN EACH CYLINDER TO A RETRACTED POSITION ADJACENT THE CLOSED CYLINDER END, A MOLDING POSITION ADJACENT AN INTERMEDIATE PORTION OF THE CYLINDER, AND AN EJECTING POSITION ADJACENT THE OPEN CYLINDER END, A HEAD FOR EACH MOLD SPACED AXIALLY FROM THE CLOSED CYLINDER END AND AC-
References Cited (Backward Citations)
DE592412C
Cited
US2218456A
Cited
US2286716A
Cited
US2555109A
Cited
US2724147A
Cited
US2994107A
Cited
US2904835A
Cited
US3078716A
Cited
US3131431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |