US3133513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace
Assignee: Canefco Ltd
•
Filing: 1961-05-22
•
Granted: 1964-05-19
•
Expires: 1981-05-22
Abstract
No abstract record available.
Inventors
- 👤 James L Hunt
- 👤 Klesel Joseph
- 👤 Henry E Farintosh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:46
CPC Classifications
F; F27; F27B; F27B3/00; F27B3/10; F27B3/12; C; C21; C21D; C21D9/00; C21D9/70; F23; F23M; F23M7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
A FURNACE HAVING STRUCTURE DEFINING A SPACE FOR HEATING OBJECTS PLACED THEREIN AND REMOVED THEREFROM GENERALLY VERTICALLY, A HORIZONTALLY TRANSLATABLE COVER FOR SAID FURNACE FOR OPENING AND CLOSING OF SAID SPACE, MEANS FOR SUPPORTING AND GUIDING SAID COVER IN HORIZONTAL TRANSLATION ALONG OPPOSING DIRECTIONS, SAID FURNACE STRUCTURE AND SAID COVER HAVING CORRESPONDING OPPOSING SIDE PORTIONS EXTENDING LONGITUDINALLY OF THE DIRECTION OF COVER MOVEMENT AND CORRESPONDING OPPOSING END PORTIONS EXTENDING TRANSVERSELY OF SAID DIRECTION OF COVER MOVEMENT, A FIXED ELONGATED SEAL ELEMENT ON EACH SIDE PORTION OF SAID FURNACE, SEAL MEANS ON EACH SIDE PORTION OF SAID COVER, SAID SEAL ELEMENTS AND SEAL MEANS EXTENDING SUBSTANTIALLY LONGITUDINALLY OF SAID DIRECTION OF COVER MOVEMENT, EACH SAID SEAL MEANS INCLUDING FIRST AND SECOND ADJACENT SEAL MEMBERS, EACH SAID FIRST SEAL MEMBER BEING IN SEALING CONTACT WITH ONE OF SAID SEAL ELEMENTS AND MOVABLY MOUNTED ON SAID COVER FOR MOVEMENT IN A DIRECTION SUBSTANTIALLY PERPENDICULAR TO THE LINE OF SAID SEALING CONTACT, EACH SAID SECOND SEAL MEMBER BEING IN SEALING CONTACT WITH ONE OF SAID SEAL ELEMENTS AT A POINT SPACED TRANSVERSELY OF SAID DIRECTION OF COVER MOVEMENT FROM THAT OF AN ADJACENT FIRST SEAL MEMBER.
Claim 2
Dependent Claim
192 words
A FURNACE HAVING STRUCTURE DEFINING A SPACE FOR HEATING OBJECTS PLACED THEREIN AND REMOVED THEREFROM GENERALLY VERTICALLY, A HORIZONTALLY TRANSLATABLE COVER FOR SAID FURNACE FOR OPENING AND CLOSING OF SAID SPACE, MEANS FOR SUPPORTING AND GUIDING SAID COVER IN HORIZONTAL TRANSLATION ALONG OPPOSING DIRECTIONS, SAID FURNACE STRUCTURE AND SAID COVER HAVING CORRESPONDING OPPOSING SIDE PORTIONS EXTENDING LONGITUDINALLY OF THE DIRECTION OF COVER MOVEMENT AND CORRESPONDING OPPOSING END PORTIONS EXTENDING TRANSVERSELY OF SAID DIRECTION OF COVER MOVEMENT, A FIXED ELONGATED SEAL ELEMENT ON EACH SIDE PORTION OF SAID FURNACE, SEAL MEANS ON EACH SIDE PORTION OF SAID COVER, SAID SEAL ELEMENTS AND SEAL MEANS EXTENDING SUBSTANTIALLY LONGITUDINALLY OF SAID DIRECTION OF COVER MOVEMENT, EACH SAID SEAL MEANS INCLUDING FIRST AND SECOND ADJACENT SEAL MEMBERS, EACH SAID FIRST SEAL MEMBER BEING IN SEALING CONTACT WITH ONE OF SAID SEAL ELEMENTS AND MOVABLY MOUNTED ON SAID COVER FOR MOVEMENT IN A DIRECTION SUBSTANTIALLY PERPENDICULAR TO THE LINE OF SAID SEALING CONTACT, EACH SAID SECOND SEAL MEMBER BEING IN SEALING CONTACT WITH ONE OF SAID SEAL ELEMENTS AT A POINT SPACED TRANSVERSELY OF SAID DIRECTION OF COVER MOVEMENT FROM THAT OF AN ADJACENT FIRST SEAL MEMBER.
References Cited (Backward Citations)
US445002A
Cited
US1074509A
Cited
US1499801A
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US1691369A
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GB345913A
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US1861465A
Cited
US1858434A
Cited
US2039761A
Cited
US2199182A
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US2189280A
Cited
US2336698A
Cited
US2394298A
Cited
GB655095A
Cited
US2881942A
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US2835048A
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US2953108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |