US4189457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sealing coke ovens
Assignee: Clement HL Co
•
Filing: 1978-11-24
•
Granted: 1980-02-19
•
Expires: 1998-11-24
Abstract
Abstract A method for sealing a by-product coke oven in which a silicone material is caused to foam to form a foaming silicone composition preferably by mixing a first mixture of organohydrogensiloxane and hydroxylated organosiloxane with a second mixture of organohydrogensiloxane most desirably with a platinum catalyst, and heating the mixture to provide a volumetrically expandable foam. The volumetrically expandable foam is sprayed around the periphery of coke oven doors, slip-joints and similar points of gaseous emissions where it undergoes a foaming acting in the presence of the heat of the oven such that the foam volumetrically expands to provide a seal that prevents the emission of gas, dust, and smoke during the coking cycle.
Inventors
- 👤 Henry L. Clement, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:49
CPC Classifications
C; C10; C10B; C10B25/00; C10B25/02; C10B25/16; Y; Y10; Y10S; Y10S277/00; Y10S277/921; Y10S277/931; Y10S277/933; Y10S277/935; Y10S277/944
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
64 words
A method of sealing leaks and crevices in a by-product coke oven, said method comprising the steps of: causing a silicone material to foam to form a foaming silicone composition; and applying the foaming silicone composition to the leak such that the composition volumetrically expands beyond the total volume of the silicone material before foaming to form a foaming silicone composition sealing the leak.
Claim 2
Independent Claim
64 words
A method of sealing leaks and crevices in a by-product coke oven, said method comprising the steps of: causing a silicone material to foam to form a foaming silicone composition; and applying the foaming silicone composition to the leak such that the composition volumetrically expands beyond the total volume of the silicone material before foaming to form a foaming silicone composition sealing the leak.
Claim 3
Dependent Claim
41 words
The method of claim 1 wherein the volumetric expansion of foaming silicone composition is such that the ratio of the volume of foamed silicone composition to the total volume of the silicone material before foaming is at least 1.1 to 1.
Claim 4
Dependent Claim
41 words
The method of claim 1 wherein the volumetric expansion of foaming silicone composition is such that the ratio of the volume of foamed silicone composition to the total volume of the silicone material before foaming is at least 2 to 1.
Claim 5
Dependent Claim
24 words
The method of claim 1 further comprising an initial step of: agitating separate components of the silicone material for forming the foaming silicone composition.
Claim 6
Dependent Claim
29 words
The method of claim 4 further comprising the step of: heating the silicone material after agitating the separate components, and at least prior to forming the foaming silicone composition.
Claim 7
Dependent Claim
26 words
The method of claim 5 wherein said heating step elevates the temperatures of the silicone material to within the range of 90° F. to 150° F.
Claim 8
Dependent Claim
26 words
The method of claim 5 wherein said heating step elevates the temperatures of the silicone material to within the range of 105° F. to 125° F.
Claim 9
Independent Claim
51 words
A method of sealing a by-product coke oven, said method comprising the steps of: mixing an organohydrogensiloxane, a hydroxylated organosiloxane, and a catalyst to form an organosiloxane foaming composition; and applying said organosiloxane foaming composition adjacent to a leak such that the organosiloxane foaming composition volumetrically expands to seal the leak.
Claim 10
Independent Claim
51 words
A method of sealing a by-product coke oven, said method comprising the steps of: mixing an organohydrogensiloxane, a hydroxylated organosiloxane, and a catalyst to form an organosiloxane foaming composition; and applying said organosiloxane foaming composition adjacent to a leak such that the organosiloxane foaming composition volumetrically expands to seal the leak.
Claim 11
Independent Claim
130 words
A method of sealing leaks in a by-product coke oven, said method comprising the steps of: agitating a first mixture of organohydrogensiloxane and hydroxylated organosiloxane, and agitating a second mixture of organohydrogensiloxane and a catalyst; heating said first and second mixtures to a temperature in the range of 90° F. to 150° F.; mixing said first and second heated mixtures together to provide an organosiloxane foaming composition; applying said organosiloxane foaming composition around the periphery of the leak such that said organosiloxane foaming composition volumetrically expands beyond the total, unmixed volume of said first and second heated mixtures from which the organosiloxane foaming composition is provided, said volumetric expansion occurring in response at least in part to the heat at the perimater of said leak to form seal said leak.
Claim 12
Independent Claim
130 words
A method of sealing leaks in a by-product coke oven, said method comprising the steps of: agitating a first mixture of organohydrogensiloxane and hydroxylated organosiloxane, and agitating a second mixture of organohydrogensiloxane and a catalyst; heating said first and second mixtures to a temperature in the range of 90° F. to 150° F.; mixing said first and second heated mixtures together to provide an organosiloxane foaming composition; applying said organosiloxane foaming composition around the periphery of the leak such that said organosiloxane foaming composition volumetrically expands beyond the total, unmixed volume of said first and second heated mixtures from which the organosiloxane foaming composition is provided, said volumetric expansion occurring in response at least in part to the heat at the perimater of said leak to form seal said leak.
Claim 13
Dependent Claim
42 words
A method of sealing coke ovens as described in claim 9, said method comprising the additional step of: pumping said first and second mixtures under pressure so that they are uniformly mixed and are applied around said leak in a bead-like spray.
Claim 14
Independent Claim
88 words
A method of sealing doors on a by-product coke oven comprising the steps of: causing a silicone material to foam to form a foaming silicone composition; applying the foaming silicone composition about the perimeter of a coke oven door opening such that the composition volumetrically expands beyond the total volume of the constituent silicone material; and closing the door over the door opening to interpose the composition between the door and the perimeter of the door opening such that the volumetric expension of the composition seals the door.
Claim 15
Independent Claim
88 words
A method of sealing doors on a by-product coke oven comprising the steps of: causing a silicone material to foam to form a foaming silicone composition; applying the foaming silicone composition about the perimeter of a coke oven door opening such that the composition volumetrically expands beyond the total volume of the constituent silicone material; and closing the door over the door opening to interpose the composition between the door and the perimeter of the door opening such that the volumetric expension of the composition seals the door.
Claim 16
Independent Claim
133 words
A method of sealing doors on a by-product coke oven comprising the steps of: agitating a first mixture of organohydrogensiloxane and hydroxylated organosiloxane, and agitating a second mixture of organohydrogensiloxane and a catalyst; heating said first and second mixtures to a temperature in the range of 90° F. to 150° F.; mixing said first and second heated mixtures together to provide an organosiloxane foaming composition applying the organosiloxane foaming composition about the perimeter of the door opening such that the organosiloxane foaming composition volumetrically expends beyond the total volume of the unmixed first and second mixtures; and closing the door over the door opening to interpose the organosiloxane foaming composition between the door and the perimeter of the door openion such that the volumetric expansion of the organosiloxane foaming composition seal the door.
Claim 17
Independent Claim
133 words
A method of sealing doors on a by-product coke oven comprising the steps of: agitating a first mixture of organohydrogensiloxane and hydroxylated organosiloxane, and agitating a second mixture of organohydrogensiloxane and a catalyst; heating said first and second mixtures to a temperature in the range of 90° F. to 150° F.; mixing said first and second heated mixtures together to provide an organosiloxane foaming composition applying the organosiloxane foaming composition about the perimeter of the door opening such that the organosiloxane foaming composition volumetrically expends beyond the total volume of the unmixed first and second mixtures; and closing the door over the door opening to interpose the organosiloxane foaming composition between the door and the perimeter of the door openion such that the volumetric expansion of the organosiloxane foaming composition seal the door.
References Cited (Backward Citations)
US1588725A
Cited
US2757423A
Cited
US2662053A
Cited
US3056690A
Cited
US3450295A
Cited
US3798186A
Cited
US3687700A
Cited
US3566541A
Cited
US3816610A
Cited
US4143104A
Cited
US3875018A
Cited
US3879240A
Cited
US3983082A
Cited
US4111709A
Cited
US4026842A
Cited
US4033827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-02-18 | 1983-08-20 | 1984-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-18 | 1987-08-20 | 1988-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-18 | 1991-08-20 | 1992-02-19 | $7700.00 | Window Closed / Lapsed |