US3199854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat treating furnace
Assignee: Ipsen Industries Inc
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Filing: 1962-08-10
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Granted: 1965-08-10
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Expires: 1982-08-10
Abstract
No abstract record available.
Inventors
- 👤 The Illinois National Bank Co
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:06
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/74; C21D1/767
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN A HEAT TREATING FURNACE, THE COMBINATION OF, A WALED STRUCTURE DEFINING A HEATING CHAMBER, AN ELONGATED ENDWISE RECIPROCABLE HEARTH COMPRISING TWO ELONGATED SIDE-BY-SIDE TRAYS EXTENDING GENERALLY HORIZONTALLY THROUGH SAID CHAMBER TO SUPPORT TWO SUCCESSIONS OF WORKPIECE TO BE TREATED, THE ADJACENT SIDES OF SAID TRAYS BEING SPACED APART, MEANS FOR SHAKING SAID HEARTH ENDWISE BACK AND FORTH AND ADVANCING SAID WORKPIECES STEP BY STEP THROUGH SAID CHAMBER, A BAFFLE IN SAID CHAMBER HAVING A TOP, A BOTTOM AND SIDES DISPOSED RESPECTIVELY ABOVE, BELOW AND ON OPPOSITE SIDES OF SAID HEARTH, SAID BAFFLE HAVING AN OUTLET OPENING THEREIN BENEATH SAID HEARTH AND AN INLET OPENING DISPOSED ABOVE SAID HEARTH ELONGATED LONGITUDINALLY OF THE HEARTH AND GENERALLY CENTERED ON THE SPACE BETWEEN SAID TRAYS IN POSITION TO DIRECT A JET OF AIR
Claim 2
Dependent Claim
131 words
IN A HEAT TREATING FURNACE, THE COMBINATION OF, A WALED STRUCTURE DEFINING A HEATING CHAMBER, AN ELONGATED ENDWISE RECIPROCABLE HEARTH COMPRISING TWO ELONGATED SIDE-BY-SIDE TRAYS EXTENDING GENERALLY HORIZONTALLY THROUGH SAID CHAMBER TO SUPPORT TWO SUCCESSIONS OF WORKPIECE TO BE TREATED, THE ADJACENT SIDES OF SAID TRAYS BEING SPACED APART, MEANS FOR SHAKING SAID HEARTH ENDWISE BACK AND FORTH AND ADVANCING SAID WORKPIECES STEP BY STEP THROUGH SAID CHAMBER, A BAFFLE IN SAID CHAMBER HAVING A TOP, A BOTTOM AND SIDES DISPOSED RESPECTIVELY ABOVE, BELOW AND ON OPPOSITE SIDES OF SAID HEARTH, SAID BAFFLE HAVING AN OUTLET OPENING THEREIN BENEATH SAID HEARTH AND AN INLET OPENING DISPOSED ABOVE SAID HEARTH ELONGATED LONGITUDINALLY OF THE HEARTH AND GENERALLY CENTERED ON THE SPACE BETWEEN SAID TRAYS IN POSITION TO DIRECT A JET OF AIR
References Cited (Backward Citations)
US2021072A
Cited
US2815305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |