US3219330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace transfer mechanism
Assignee: Sunbeam Equipment Corp
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Filing: 1962-05-10
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Granted: 1965-11-23
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Expires: 1982-05-10
Abstract
No abstract record available.
Inventors
- 👤 Norman J Acker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:09
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
HEAT TREATING APPARATUS COMPRISING AN ENCLOSURE HAVING AN ENTRANCE OPENING THEREIN, A DOOR SLIDABLY MOVABLE BETWEEN AN OPEN POSITION AND A CLOSED POSITION SEALING SAID OPENING, SAID DOOR HAVING A LOWER FLANGE PORTION THROUGH WHICH AT LEAST ONE HOLE EXTENDS, SAID HOLE BEING CLOSED BY THE WALL OF SAID ENCLOSURE WHEN SAID DOOR IS IN THE CLOSED POSITION, SAID DOOR BEING MOVABLE INTO AN INTERMEDIATE POSITION IN WHICH IT COVERS SAID ENTRANCE OPENING AND IN WHICH SAID HOLE IS IN ALIGNMENT WITH SAID ENTRANCE OPENING, A WORK TRANSFER MECHANISM LOCATED COMPLETELY OUTSIDE OF SAID ENCLOSURE AND POSITIONED ADJACENT SAID ENTRANCE OPENING AND INCLUDING A WORK ENGAGING PORTION IN OPERATIVE ALIGNMENT WITH SAID ENTRANCE OPENING INSERTABLE THROUGH SAID HOLE AND SAID OPENING WHEN THEY ARE ALIGNED WITH SAID DOOR IN SAID INTERMEDIATE POSITION OF SAID FURNACE.
Claim 2
Dependent Claim
135 words
HEAT TREATING APPARATUS COMPRISING AN ENCLOSURE HAVING AN ENTRANCE OPENING THEREIN, A DOOR SLIDABLY MOVABLE BETWEEN AN OPEN POSITION AND A CLOSED POSITION SEALING SAID OPENING, SAID DOOR HAVING A LOWER FLANGE PORTION THROUGH WHICH AT LEAST ONE HOLE EXTENDS, SAID HOLE BEING CLOSED BY THE WALL OF SAID ENCLOSURE WHEN SAID DOOR IS IN THE CLOSED POSITION, SAID DOOR BEING MOVABLE INTO AN INTERMEDIATE POSITION IN WHICH IT COVERS SAID ENTRANCE OPENING AND IN WHICH SAID HOLE IS IN ALIGNMENT WITH SAID ENTRANCE OPENING, A WORK TRANSFER MECHANISM LOCATED COMPLETELY OUTSIDE OF SAID ENCLOSURE AND POSITIONED ADJACENT SAID ENTRANCE OPENING AND INCLUDING A WORK ENGAGING PORTION IN OPERATIVE ALIGNMENT WITH SAID ENTRANCE OPENING INSERTABLE THROUGH SAID HOLE AND SAID OPENING WHEN THEY ARE ALIGNED WITH SAID DOOR IN SAID INTERMEDIATE POSITION OF SAID FURNACE.
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |