Patent US3056699A successfully refreshed from Google Patents.
US3056699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning of sealing surfaces of doors and door frames of horizontal coke ovens
Assignee: Woodall Duckham Construction Co Ltd
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Filing: 1958-12-16
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Granted: 1962-10-02
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Expires: 1978-12-16
Abstract
No abstract record available.
Inventors
- 👤 Randell Geoffrey Edwar Charles
- 👤 Whitworth Herbert Milton
- 👤 Holme Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:29
CPC Classifications
C; C10; C10B; C10B43/00; C10B43/02; C10B43/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A METHOD OF CLEANING THE SELF-SEALING METAL SURFACES BETWEEN THE DOORS OF HORIZONTAL COKE OVENS AND THEIR COOPERATING DOOR FRAMES WHILE HOT FROM THE HEAT OF THE OVEN STRUCTURE, COMPRISING: HORIZONTALLY MOVING A CARRIAGE CONTAINING TWO SETS OF MECHANICALLY RECIPROCATED SCRAPERS WITH EXTRANEOUS HEATING MEANS THEREOF INDIVIDUALLY INTO POSITION WITH SELF-SEALING SURFACES AFORESAID BETWEEN INDIVIDUAL ONES OF DOORS AND THEIR FRAMES FOR CLEANING SELF-SEALING SURFACES AFORESAID, APPLYING EXTRANEOUS HEAT TO THE DEPOSITS OF PITCHY CONSTITUENTS OF THE GAS FROM THE OVENS ON THE AFORESAID SURFACES TO BE CLEANED, AND THEREUPON SCRAPING OFF THE SOFTENED DEPOSITS BY SAID MECHANICALLY RECIPROCATED SCRAPERS.
Claim 2
Independent Claim
100 words
A METHOD OF CLEANING THE SELF-SEALING METAL SURFACES BETWEEN THE DOORS OF HORIZONTAL COKE OVENS AND THEIR COOPERATING DOOR FRAMES WHILE HOT FROM THE HEAT OF THE OVEN STRUCTURE, COMPRISING: HORIZONTALLY MOVING A CARRIAGE CONTAINING TWO SETS OF MECHANICALLY RECIPROCATED SCRAPERS WITH EXTRANEOUS HEATING MEANS THEREOF INDIVIDUALLY INTO POSITION WITH SELF-SEALING SURFACES AFORESAID BETWEEN INDIVIDUAL ONES OF DOORS AND THEIR FRAMES FOR CLEANING SELF-SEALING SURFACES AFORESAID, APPLYING EXTRANEOUS HEAT TO THE DEPOSITS OF PITCHY CONSTITUENTS OF THE GAS FROM THE OVENS ON THE AFORESAID SURFACES TO BE CLEANED, AND THEREUPON SCRAPING OFF THE SOFTENED DEPOSITS BY SAID MECHANICALLY RECIPROCATED SCRAPERS.
References Cited (Backward Citations)
US1759014A
Cited
US1759015A
Cited
US2256648A
Cited
US2283282A
Cited
US2618004A
Cited
GB741071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |