Patent US3275360A successfully refreshed from Google Patents.
US3275360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coke oven door latching mechanism
Assignee: Beazer East Inc
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Filing: 1964-05-15
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Granted: 1966-09-27
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Expires: 1984-05-15
Abstract
No abstract record available.
Inventors
- 👤 Linwood G Tucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:14
CPC Classifications
C; C10; C10B; C10B25/00; C10B25/02; C10B25/08; C10B25/12; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0803; Y10T292/0805; Y10T292/0806
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
232 words
APPARATUS FOR LATCHING AND UNLATCHING A COKE OVEN DOOR HAVING A BODY PORTION, A PERIPHERAL FLANGE PROJECTING OUTWARDLY THEREFROM, A SEAL MEANS EXTENDING AROUND THE PERIPHERY OF SAID FLANGE FOR ABUTTING A SEALING SURFACE SURROUNDING THE OPENING FOR SAID DOOR AND SEALING SAID COKE OVEN CHAMBER, SAID LATCHING AND UNLATCHING APPARATUS COMPRISING, (A) A PAIR OF UPPER RETAINING MEMBER AFFIXED TO AND PROJECTING FROM THE COKE OVEN STRUCTURE AND POSITIONED ON OPPOSITE SIDES OF SAID DOOR OPENING, (B) A PAIR OF LOWER RETAINING MEMBER AFFIXED TO AND PROJECTING FROM THE COKE OVEN STRUCTURE AND POSITIONED ON OPPOSITE SIDES OF SAID DOOR OPENING, (C) UPPER LEVER MEANS PIVOTALLY CONNECTED TO SAID DOOR AND EXTENDING OUTWARDLY THEREFROM, (D) LOWER LEVER MEANS PIVOTALLY CONNECTED TO SAID DOOR AND EXTENDING OUTWARDLY THEREFROM, (D) DOOR EXTRACTOR RECEIVER MEANS SECURED TO SAID DOOR AND EXTENDING OUWARDLY THEREFROM, (F) UPPER TRANSVERSE ENGAGING MEANS SECURED TO SAID UPPER LEVER MEANS AND ARRANGED TO BE POSITIONED IN SAID UPPER RETAINING MEMBERS TO HOLD SAID DOOR IN SEALING RELATION WITH SAID COKE OVEN CHAMBER, (G) LOWER TRANSVERSE ENGAGING MEANS SECURED TO SAID LEVER AND ARRANGED TO BE POSITIONED IN SAID LOWER RETAINING MEANS AND OPERABLE TO HOLD SAID DOOR IN SEALING RELATION WITH SAID COKE OVER CHAMBER, (H) CONNECTING MEANS BETWEEN SAID UPPER AND LOWER LEVER MEANS ARRANGED TO PIVOT BOTH OF SAID LEVER MEANS SO THAT UPON ENGAGEMENT SAID TRANSVERSE EN-
Claim 2
Dependent Claim
232 words
APPARATUS FOR LATCHING AND UNLATCHING A COKE OVEN DOOR HAVING A BODY PORTION, A PERIPHERAL FLANGE PROJECTING OUTWARDLY THEREFROM, A SEAL MEANS EXTENDING AROUND THE PERIPHERY OF SAID FLANGE FOR ABUTTING A SEALING SURFACE SURROUNDING THE OPENING FOR SAID DOOR AND SEALING SAID COKE OVEN CHAMBER, SAID LATCHING AND UNLATCHING APPARATUS COMPRISING, (A) A PAIR OF UPPER RETAINING MEMBER AFFIXED TO AND PROJECTING FROM THE COKE OVEN STRUCTURE AND POSITIONED ON OPPOSITE SIDES OF SAID DOOR OPENING, (B) A PAIR OF LOWER RETAINING MEMBER AFFIXED TO AND PROJECTING FROM THE COKE OVEN STRUCTURE AND POSITIONED ON OPPOSITE SIDES OF SAID DOOR OPENING, (C) UPPER LEVER MEANS PIVOTALLY CONNECTED TO SAID DOOR AND EXTENDING OUTWARDLY THEREFROM, (D) LOWER LEVER MEANS PIVOTALLY CONNECTED TO SAID DOOR AND EXTENDING OUTWARDLY THEREFROM, (D) DOOR EXTRACTOR RECEIVER MEANS SECURED TO SAID DOOR AND EXTENDING OUWARDLY THEREFROM, (F) UPPER TRANSVERSE ENGAGING MEANS SECURED TO SAID UPPER LEVER MEANS AND ARRANGED TO BE POSITIONED IN SAID UPPER RETAINING MEMBERS TO HOLD SAID DOOR IN SEALING RELATION WITH SAID COKE OVEN CHAMBER, (G) LOWER TRANSVERSE ENGAGING MEANS SECURED TO SAID LEVER AND ARRANGED TO BE POSITIONED IN SAID LOWER RETAINING MEANS AND OPERABLE TO HOLD SAID DOOR IN SEALING RELATION WITH SAID COKE OVER CHAMBER, (H) CONNECTING MEANS BETWEEN SAID UPPER AND LOWER LEVER MEANS ARRANGED TO PIVOT BOTH OF SAID LEVER MEANS SO THAT UPON ENGAGEMENT SAID TRANSVERSE EN-
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |