US9815729B2
Active / In Force
US
⏱️ 7.3 years remaining
Cellular ceramic plates with asymmetrical cell structure and manufacturing method thereof
Assignee: Pittsburgh Corning Europe NV
•
Filing: 2014-02-12
•
Granted: 2017-11-14
•
Expires: 2034-02-12
Abstract
Abstract A method for the continuous production of a cellular ceramic plate having asymmetric cells comprising thermally treating ceramic particles and a blowing agent in a foaming furnace while conveying said ceramic particles and said blowing agent at a first speed thereby forming a cellular ceramic plate, and annealing said cellular ceramic plate in an annealing lehr by cooling it down while conveying it at a second speed, larger than said first speed, thereby stretching and cooling said cellular ceramic plate.
Inventors
- 👤 Hans Strauven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:11
CPC Classifications
C; C03; C03B; C03B19/00; C03B19/08; C03B25/00; C03B25/04; C03B25/06; C03B25/08; C03B35/00; C03B35/14; C03B35/16; C03B35/163
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
136 words
A method for the continuous production of a one-piece continuous cellular ceramic plate comprising: a) thermally treating ceramic particles and a blowing agent in a foaming furnace while conveying said ceramic particles and said blowing agent at a first speed to thereby form a one-piece continuous cellular ceramic plate, b) annealing said one-piece continuous cellular ceramic plate in an annealing lehr by cooling said one-piece continuous cellular ceramic plate down while conveying said one-piece continuous cellular ceramic plate at a second speed, larger than said first speed, thereby stretching and cooling said one-piece continuous cellular ceramic plate; and c) prior to step (b), transferring said one-piece continuous cellular ceramic plate from said foaming furnace to an annealing lehr via an intermediate conveyor at a third speed, wherein the third speed is larger than said second speed.
Claim 2
Independent Claim
136 words
A method for the continuous production of a one-piece continuous cellular ceramic plate comprising: a) thermally treating ceramic particles and a blowing agent in a foaming furnace while conveying said ceramic particles and said blowing agent at a first speed to thereby form a one-piece continuous cellular ceramic plate, b) annealing said one-piece continuous cellular ceramic plate in an annealing lehr by cooling said one-piece continuous cellular ceramic plate down while conveying said one-piece continuous cellular ceramic plate at a second speed, larger than said first speed, thereby stretching and cooling said one-piece continuous cellular ceramic plate; and c) prior to step (b), transferring said one-piece continuous cellular ceramic plate from said foaming furnace to an annealing lehr via an intermediate conveyor at a third speed, wherein the third speed is larger than said second speed.
Claim 3
Dependent Claim
27 words
The method according to claim 1 , wherein the difference between the second speed and the first speed is between 0.1% and 25% of the first speed.
Claim 4
Dependent Claim
25 words
The method according to claim 1 , wherein the difference between the third and second speed is between 0.1% and 10% of the first speed.
Claim 5
Dependent Claim
21 words
The method according to claim 1 , wherein the one-piece continuous cellular ceramic plate is a one-piece continuous glass foam plate.
Claim 6
Dependent Claim
30 words
The method according to claim 1 , wherein the step of stretching and cooling said one-piece continuous cellular ceramic plate asymmetrically deforms cells within said one-piece continuous cellular ceramic plate.
Claim 7
Dependent Claim
53 words
The method according to claim 5 , wherein after the step of stretching and cooling said one-piece continuous cellular ceramic plate, a length measurement of an average longest dimension of said cells and a length measurement of an average shortest dimension of said cells differs by a factor of between 1.2 and 1.6.
Claim 8
Independent Claim
134 words
A method for the continuous production of a one-piece continuous cellular ceramic plate comprising: a) thermally treating ceramic particles and a blowing agent in a foaming furnace while conveying said ceramic particles and said blowing agent at a first speed to thereby form a one piece continuous cellular ceramic plate, and b) annealing said one-piece continuous cellular ceramic plate in an annealing lehr by cooling said one-piece continuous cellular ceramic plate down while conveying said one-piece continuous cellular ceramic plate at a second speed, larger than said first speed, thereby stretching and cooling said one-piece continuous cellular ceramic plate; wherein prior to step (b), the one-piece continuous cellular ceramic plate passes through a zone having substantially no temperature gradient as the cellular ceramic plate is transferred from said foaming furnace to said annealing lehr.
Claim 9
Independent Claim
134 words
A method for the continuous production of a one-piece continuous cellular ceramic plate comprising: a) thermally treating ceramic particles and a blowing agent in a foaming furnace while conveying said ceramic particles and said blowing agent at a first speed to thereby form a one piece continuous cellular ceramic plate, and b) annealing said one-piece continuous cellular ceramic plate in an annealing lehr by cooling said one-piece continuous cellular ceramic plate down while conveying said one-piece continuous cellular ceramic plate at a second speed, larger than said first speed, thereby stretching and cooling said one-piece continuous cellular ceramic plate; wherein prior to step (b), the one-piece continuous cellular ceramic plate passes through a zone having substantially no temperature gradient as the cellular ceramic plate is transferred from said foaming furnace to said annealing lehr.
Claim 10
Independent Claim
140 words
A method for the continuous production of a one-piece continuous cellular ceramic plate comprising: a) thermally treating ceramic particles and a blowing agent in a foaming furnace while conveying said ceramic particles and said blowing agent at a first speed to thereby form a one-piece continuous cellular ceramic plate, and b) annealing said one-piece continuous cellular ceramic plate in an annealing lehr by cooling said one-piece continuous cellular ceramic plate down while conveying said one-piece continuous cellular ceramic plate at a second speed, larger than said first speed, thereby stretching and cooling said one-piece continuous cellular ceramic plate; wherein prior to step (b), the one-piece continuous cellular ceramic plate passes through a zone having a temperature gradient of less than 20 degrees Celsius as the one-piece continuous cellular ceramic plate is transferred from said foaming furnace to said annealing lehr.
Claim 11
Independent Claim
140 words
A method for the continuous production of a one-piece continuous cellular ceramic plate comprising: a) thermally treating ceramic particles and a blowing agent in a foaming furnace while conveying said ceramic particles and said blowing agent at a first speed to thereby form a one-piece continuous cellular ceramic plate, and b) annealing said one-piece continuous cellular ceramic plate in an annealing lehr by cooling said one-piece continuous cellular ceramic plate down while conveying said one-piece continuous cellular ceramic plate at a second speed, larger than said first speed, thereby stretching and cooling said one-piece continuous cellular ceramic plate; wherein prior to step (b), the one-piece continuous cellular ceramic plate passes through a zone having a temperature gradient of less than 20 degrees Celsius as the one-piece continuous cellular ceramic plate is transferred from said foaming furnace to said annealing lehr.
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