US5330816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High R super insulation panel
Assignee: Owens Corning Intellectual Capital LLC
•
Filing: 1992-12-23
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Granted: 1994-07-19
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Expires: 2012-12-23
Abstract
Abstract An insulation panel comprises an insulation board of glass fibers and a partially evacuated gas-tight envelope encapsulating the board, where, prior to the evacuation of the envelope, the board has been subjected to a heat setting process in which the board is raised to a heat setting temperature above the strain temperature of the glass but below the softening temperature of the glass and to a pressure applied by opposed platens followed by a quick release of the board from the platens prior to substantial cooling of the board.
Inventors
- 👤 Stanley J. Rusek, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:20
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/10; C03B37/14; C03B37/15; E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B1/78; E04B1/80; E04B1/803; Y; Y02; Y02A; Y02A30/00; Y02A30/24; Y02A30/242; Y02B; Y02B80/00; Y02B80/10; Y10; Y10S; Y10S428/00; Y10S428/902; Y10S428/903; Y10T; Y10T428/00; Y10T428/23; Y10T428/231
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
110 words
An insulation panel comprising a heat set insulation board of compressed glass fibers and a partially evacuated gas-tight envelope encapsulating the board, where, prior to the evacuation of the envelope, the board has been subjected to a heat setting process in which the glass fiber board is raised to a heat setting temperature above the strain temperature of the glass but below the softening temperature of the glass, and to a pressure applied by opposed platens within the range of from about 10 psi (69 kPa) to about 50 psi (345 kPa) followed by a quick release of the board from the platens prior to substantial cooling of the board.
Claim 2
Dependent Claim
110 words
An insulation panel comprising a heat set insulation board of compressed glass fibers and a partially evacuated gas-tight envelope encapsulating the board, where, prior to the evacuation of the envelope, the board has been subjected to a heat setting process in which the glass fiber board is raised to a heat setting temperature above the strain temperature of the glass but below the softening temperature of the glass, and to a pressure applied by opposed platens within the range of from about 10 psi (69 kPa) to about 50 psi (345 kPa) followed by a quick release of the board from the platens prior to substantial cooling of the board.
Claim 3
Dependent Claim
25 words
The insulation panel of claim 1 in which the heat setting temperature is at least 20 degrees C. above the strain temperature of the glass.
Claim 4
Dependent Claim
25 words
The insulation panel of claim 1 in which the heat setting temperature is at least 80 degrees C. below the softening point of the glass.
Claim 5
Dependent Claim
29 words
The insulation panel of claim 1 in which the temperature of the board is raised to at least 260 degrees C. prior to application of pressure by the platens.
Claim 6
Dependent Claim
24 words
The insulation panel of claim 1 in which the edges of the board are treated with an additional application of heat prior to encapsulation.
Claim 7
Dependent Claim
120 words
An insulation panel comprising a heat set insulation board of compressed glass fibers and a partially evacuated gas-tight envelope encapsulating the board, where, prior to the evacuation of the envelope, the board has been subjected to a heat setting process in which the glass fiber board is raised to a heat setting temperature at least 20 degrees C. above the strain temperature of the glass but at least 80 degrees C. below the softening temperature of the glass, and to a pressure applied by opposed platens within the range of from about 10 psi (69 kPa) to about 50 psi (345 kPa) followed by a quick release of the board from the platens prior to substantial cooling of the board.
Claim 8
Dependent Claim
120 words
An insulation panel comprising a heat set insulation board of compressed glass fibers and a partially evacuated gas-tight envelope encapsulating the board, where, prior to the evacuation of the envelope, the board has been subjected to a heat setting process in which the glass fiber board is raised to a heat setting temperature at least 20 degrees C. above the strain temperature of the glass but at least 80 degrees C. below the softening temperature of the glass, and to a pressure applied by opposed platens within the range of from about 10 psi (69 kPa) to about 50 psi (345 kPa) followed by a quick release of the board from the platens prior to substantial cooling of the board.
Claim 9
Dependent Claim
29 words
The insulation panel of claim 6 in which the temperature of the board is raised to at least 260 degrees C. prior to application of pressure by the platens.
Claim 10
Dependent Claim
18 words
The insulation panel of claim 6 in which the gas-tight envelope is comprised of a low conductance metal.
Claim 11
Dependent Claim
18 words
The insulation panel of claim 6 in which edges of the gas-tight envelope comprise a low conductance metal.
Claim 12
Dependent Claim
21 words
The insulation panel of claim 9 in which the low conductance metal has a thickness less than 7 mils (0.178 ram).
Claim 13
Dependent Claim
21 words
The insulation panel of claim 6 in which the gas-tight envelope has an absolute internal pressure of less than 20 torr.
Claim 14
Dependent Claim
29 words
The insulation panel of claim 11 in which the gas-tight envelope has an absolute internal pressure within the range of from about 10 -5 to about 10 -1 torr.
Claim 15
Dependent Claim
34 words
The insulation panel of claim 6 in which the density of the board is within the range of from about 6 pcf (96 kg/m 3 ) to about 28 pcf (448 kg/m 3 ).
Claim 16
Dependent Claim
24 words
The insulation panel of claim 13 in which the edges of the board are treated with an additional application of heat prior to encapsulation.
Claim 17
Dependent Claim
140 words
An insulation panel comprising a heat set insulation board of compressed glass fibers and a partially evacuated gas-tight envelope encapsulating the board, the gas-tight envelope having an absolute internal pressure within the range of from 10 -5 to about 10 -1 torr, where, prior to the evacuation of the envelope, the board has been subjected to a heat setting process in which the glass fiber board is raised to a heat setting temperature at least 20 degrees C. above the strain temperature of the glass but at least 80 degrees C. below the softening temperature of the glass, and to a pressure applied by opposed platens within the range of from about 10 psi (69 kPa) to about 50 psi (345 kPa) followed by a quick release of the board from the platens prior to substantial cooling of the board.
Claim 18
Dependent Claim
140 words
An insulation panel comprising a heat set insulation board of compressed glass fibers and a partially evacuated gas-tight envelope encapsulating the board, the gas-tight envelope having an absolute internal pressure within the range of from 10 -5 to about 10 -1 torr, where, prior to the evacuation of the envelope, the board has been subjected to a heat setting process in which the glass fiber board is raised to a heat setting temperature at least 20 degrees C. above the strain temperature of the glass but at least 80 degrees C. below the softening temperature of the glass, and to a pressure applied by opposed platens within the range of from about 10 psi (69 kPa) to about 50 psi (345 kPa) followed by a quick release of the board from the platens prior to substantial cooling of the board.
Claim 19
Dependent Claim
19 words
The insulation panel of claim 15 in which the edges of the gas-tight envelope comprise a low conductance metal.
Claim 20
Dependent Claim
24 words
The insulation panel of claim 15 in which the edges of the board are treated with an additional application of heat prior to encapsulation.
Claim 21
Dependent Claim
32 words
The insulation panel of claim 15 in which the heat-set board has the ability to withstand external pressure loading of at least 20 psig (138 kPa) without deflection greater than 15 percent.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-07-18 | 1998-01-17 | 1998-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-18 | 2002-01-17 | 2002-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-18 | 2006-01-17 | 2006-07-19 | $7700.00 | Window Closed / Lapsed |