High R-value window unit with vacuum IG unit and insulating frame
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E06B-003/67
E06B-003/24
출원번호
UP-0317255
(2005-12-27)
등록번호
US-7845142
(2011-01-31)
발명자
/ 주소
Theios, Jason
출원인 / 주소
Guardian Industries Corp.
대리인 / 주소
Nixon & Vanderhye P.C.
인용정보
피인용 횟수 :
19인용 특허 :
20
초록▼
In certain example embodiments of this invention, a window unit may include a vacuum IG (VIG) unit as an inboard lite and a monolithic lite (e.g., with an optional low-E coating thereon) as an outboard lite. A dead air space may separate the inboard and outboard lites. A highly insulated frame may b
In certain example embodiments of this invention, a window unit may include a vacuum IG (VIG) unit as an inboard lite and a monolithic lite (e.g., with an optional low-E coating thereon) as an outboard lite. A dead air space may separate the inboard and outboard lites. A highly insulated frame may be used to support the inner and outer lites. The VIG unit may be partially embedded or supported in the insulative frame, so that the insulating frame separates the VIG unit inboard lite from the outboard lite thereby reducing conductivity around the edges of the window unit so that R-value can be increased (and U-value decreased). In certain example embodiments, the total R-value of the window unit is at least about R-8, and more preferably at least about R-10 (compared to the much lower R-values of conventional IG units).
대표청구항▼
The invention claimed is: 1. A window unit comprising: an insulating frame in which both an inboard glass lite and an outboard glass lite are partially embedded, the inboard lite comprising a vacuum IG unit including first and second spaced apart glass sheets having the same height, that are separa
The invention claimed is: 1. A window unit comprising: an insulating frame in which both an inboard glass lite and an outboard glass lite are partially embedded, the inboard lite comprising a vacuum IG unit including first and second spaced apart glass sheets having the same height, that are separated from one another via a gap that is at a pressure less than atmospheric, and the outboard lite comprising a monolithic glass sheet spaced apart from the vacuum IG unit; wherein the frame comprises insulating material that separates the surface of the vacuum IG unit closest to the monolithic glass sheet from the inner surface of the monolithic glass sheet; wherein along at least one of a top edge, a bottom edge, and/or a side edge of the window unit, the outer edge of the monolithic glass sheet is vertically offset from the outer edge of the vacuum IG unit so that the outer edge of the vacuum IG unit is closer to a periphery of the window unit than is the outer edge of the monolithic glass sheet; wherein a gap between the inboard lite and the outboard lite is substantially at atmospheric pressure, so that the gap on one side of the second glass sheet provided between the first and second sheets is at a pressure less than atmospheric pressure, but the gap on the other side of the second glass sheet provided between the second glass sheet and the outboard lite is substantially at atmospheric pressure; and wherein a total R-value of the window unit is at least about R-8. 2. The window unit of claim 1, wherein a low-E coating is provided on the inner surface of the monolithic glass sheet. 3. The window unit of claim 1, wherein the frame comprises an outer portion which at least partially surrounds an insulating foam core, wherein at least part of the foam core is located between the vacuum IG unit and the monolithic glass sheet. 4. The window unit of claim 1, wherein a substantially L-shaped channel is defined in the frame, wherein a vertical channel portion of the substantially L-shaped channel receives part of the vacuum IG unit. 5. The window unit of claim 4, wherein a support member is provided at a bottom of the vertical channel portion, and a bottom of the vacuum IG unit rests on the support member. 6. The window unit of claim 1, wherein a substantially L-shaped channel is defined in the frame which receives part of the monolithic glass sheet. 7. The window unit of claim 1, wherein the frame has a bite (B) of from about one to three inches. 8. The window unit of claim 1, wherein a total R-value of the window unit is at least about R-10. 9. The window unit of claim 1, wherein the frame has a bite, and wherein a path length around an edge of the vacuum IG unit is longer than the bite. 10. The window unit of claim 9, wherein the path length is twice as long as the bite. 11. The window unit of claim 1, further comprising a plurality of adhesive seals provided at discrete locations between (a) inner and outer surfaces of the vacuum IG unit, and walls of a first channel in which the vacuum IG unit is at least partially embedded, and (b) inner and outer surfaces of the monolithic glass sheet, and walls of a second channel in which the monolithic glass sheet is at least partially embedded. 12. The window unit of claim 1, wherein the frame comprises first and second substantially L-shaped channels defined therein, wherein substantially vertical portions of the first and second channels respectively receive portions of the vacuum IG unit and the monolithic glass sheet, and wherein substantially horizontal portions of the first and second channels respectively extend from bottom portions of the substantially vertical portions of the first and second channels in substantially opposite directions. 13. The window unit of claim 12, wherein stoppers are provided at the bottom portions of the first and second channels. 14. A window unit comprising: an insulating frame in which a vacuum IG unit and a monolithic lite are provided, the vacuum IG unit including first and second spaced apart glass sheets having the same height, that are separated from one another via a gap that is a pressure less than atmospheric, and the monolithic lite being spaced apart from the vacuum IG unit; wherein the frame comprises insulating material that separates the vacuum IG unit from the monolithic lite; wherein a gap between the vacuum IG unit and the monolithic lite is substantially at atmospheric pressure, so that a gap immediately adjacent one side of an outer glass sheet of the vacuum IG unit is at a pressure less than atmospheric pressure, but another gap on the other side of said outer glass sheet of the vacuum IG unit is substantially at atmospheric pressure; and wherein a total R-value of the window unit is at least about R-8. 15. The window unit of claim 14, wherein along at least one of a top edge, a bottom edge, and/or a side edge of the window unit, the outer edge of the monolithic lite is vertically offset from the outer edge of the vacuum IG unit so that the outer edge of the vacuum IG unit is closer to a periphery of the window unit than is the outer edge of the monolithic lite. 16. The window unit of claim 15, wherein a low-E coating is provided on an interior surface of the monolithic lite, and wherein the monolithic lite is provided closer to an exterior of a building in which the window unit is located than is the vacuum IG unit. 17. The window unit of claim 14, wherein the frame comprises an outer portion which at least partially surrounds an insulating foam core, wherein at least part of the foam core is located between the vacuum IG unit and the monolithic lite. 18. The window unit of claim 14, wherein a substantially L-shaped channel is defined in the frame, wherein a vertical channel portion of the substantially L-shaped channel receives part of the vacuum IG unit. 19. The window unit of claim 18, wherein a support member is provided at a bottom of the vertical channel portion, and a bottom of the vacuum IG unit rests on the support member. 20. The window unit of claim 14, wherein a substantially L-shaped channel is defined in the frame which receives part of the monolithic lite.
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이 특허에 인용된 특허 (20)
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Thompson, Robert D.; Anderson, Charles L.; Mitchell, John M.; Flynn, Nigel J.; MacDonald, Kunal D.; Rowley, David Scott; Stamm, Jr., Edward I., Window frame system for vacuum insulated glass unit.
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