A hermetically sealed multi-pane window assembly comprises first and second windowpane sheets formed of transparent materials. A first sealing member has an inner edge and an outer edge, the inner edge being hermetically attached around the periphery of the first windowpane sheet by diffusion bondin
A hermetically sealed multi-pane window assembly comprises first and second windowpane sheets formed of transparent materials. A first sealing member has an inner edge and an outer edge, the inner edge being hermetically attached around the periphery of the first windowpane sheet by diffusion bonding. A second sealing member has an inner edge and an outer edge, the inner edge being hermetically attached around the periphery of the second windowpane sheet by diffusion bonding and the outer edge being hermetically attached to the outer edge of the first sealing member. A spacer assembly is disposed between the first and the second windowpane sheets for maintaining a gap therebetween, whereby a hermetically sealed cavity is defined between the first and the second windowpanes.
대표청구항▼
What is claimed is: 1. A hermetically sealed multi-pane window assembly comprising: a first windowpane sheet formed of a transparent material and having a periphery and a pre-bond surface finish; a first sealing member having an inner edge, an outer edge and a first center portion therebetween, the
What is claimed is: 1. A hermetically sealed multi-pane window assembly comprising: a first windowpane sheet formed of a transparent material and having a periphery and a pre-bond surface finish; a first sealing member having an inner edge, an outer edge and a first center portion therebetween, the inner edge being bonded to the first windowpane sheet around the periphery to create a hermetic seal therebetween while maintaining the pre-bond surface finish of the first windowpane sheet; a second windowpane sheet formed of a transparent material and having a periphery and a pre-bond surface finish; a second sealing member having an inner edge, an outer edge and a second center portion therebetween, the inner edge being bonded to the second windowpane sheet around the periphery to create a hermetic seal therebetween while maintaining the pre-bond surface finish of the second windowpane sheet; a spacer assembly disposed between the first and the second windowpane sheets for maintaining a gap therebetween, the spacer being slidably movable with respect to at least one of the first and second windowpane sheets; wherein at least one of the first center portion and the second center portion has, when viewed in the direction of the edge of the respective windowpane sheet to which it is bonded, a convolute cross-section including at least one radius of curvature on one side of the respective center portion and at least two radii of curvature on the other side of the same center portion, and further wherein the cross-section is asymmetrical, with respect to a plane defined by the center of the gap between the windowpane sheets, to the cross-section of the center portion of the other sealing member; the outer edge of the first sealing member being hermetically attached to the outer edge of the second sealing member; and whereby a hermetically sealed cavity containing the spacer assembly is formed between the first and the second windowpanes. 2. A hermetically sealed window assembly in accordance with claim 1, wherein the hermetically sealed cavity between the first and the second windowpanes contains a vacuum. 3. A hermetically sealed window assembly in accordance with claim 2, wherein the vacuum within the hermetically sealed cavity between the first and the second windowpanes is a partial vacuum. 4. A hermetically sealed window assembly in accordance with claim 1, wherein the hermetically sealed cavity between the first and the second windowpanes contains a gas. 5. A hermetically sealed window assembly in accordance with claim 4, wherein the gas within hermetically sealed cavity between the first and the second windowpanes is one of air, nitrogen, argon, krypton and xenon. 6. A hermetically sealed window assembly in accordance with claim 1, wherein the hermetically sealed cavity between the first and the second windowpanes contains an aerogel. 7. A hermetically sealed multi-pane window assembly in accordance with claim 1, wherein at least one of the first and the second seal members is adapted to be compliant with lateral expansion and contraction of the attached windowpane sheet. 8. A hermetically sealed window assembly in accordance with claim 1, wherein at least one of the first and the second seal members is formed of a metal. 9. A hermetically sealed window assembly in accordance with claim 1, wherein the spacer assembly comprises a plurality of discrete stand-off members attached to an inner surface of one of the windowpane sheets. 10. A hermetically sealed window assembly in accordance with claim 9, wherein the spacer assembly further comprises a plurality of discrete stand-off members attached to an inner surface of another of the windowpane sheets and a spacer sheet disposed between the stand-off members of the two windowpane sheets. 11. A hermetically sealed window assembly in accordance with claim 1, wherein the spacer assembly comprises a plurality of stand-off members formed on an inner surface of one of the windowpane sheets during manufacture of the windowpane sheet. 12. A hermetically sealed window assembly in accordance with claim 1, wherein the spacer assembly comprises a sheet having a plurality of stand-off members formed on opposite sides thereof facing the inner surfaces of the windowpane sheets. 13. A hermetically sealed window assembly in accordance with claim 1, wherein the spacer assembly comprises a plurality of generally parallel strands of a first fiber. 14. A hermetically sealed window assembly in accordance with claim 13, wherein the first fiber is formed of a glass material. 15. A hermetically sealed window assembly in accordance with claim 13, wherein the spacer assembly further comprises a plurality of generally parallel strands of a weft fiber interwoven with the strands of the first fiber. 16. A hermetically sealed window assembly in accordance with claim 15, wherein one of the first fiber and the weft fiber is formed of a glass material. 17. A hermetically sealed window assembly in accordance with claim 1, wherein at least three successive radii of curvature of the convolute cross-section are disposed on alternating sides of the center portion, counting from the inner edge to the outer edge. 18. A hermetically sealed window assembly in accordance with claim 1, wherein the convolute cross-section includes at least two radii of curvature on one side of the center portion and at least two radii of curvature on the other side of the center portion, and wherein the successive radii, counting from the inner edge to the outer edge, are disposed on alternating sides of the center portion. 19. A hermetically sealed window assembly in accordance with claim 1, wherein both center portions include convolute cross sections. 20. A hermetically sealed multi-pane window assembly comprising: a first windowpane formed of a transparent material and having a periphery and a pre-bond surface finish; a first sealing member having an inner edge, an outer edge and a first center portion disposed therebetween, the inner edge hermetically sealed to the first windowpane around the periphery; a second windowpane formed of a transparent material and having a periphery and a pre-bond surface finish, the second windowpane being spaced-apart from the first windowpane to define a gap therebetween; a second sealing member having an inner edge, an outer edge and a second center portion disposed therebetween, the inner edge being hermetically sealed to the second windowpane around the periphery, and the outer edge being hermetically attached to the outer edge of the first sealing member; and at least one of the first and second sealing members having, when viewed in the direction of the edge of the respective windowpane to which it is bonded, a convolute cross-section including at least one radius of curvature on one side of the respective center portion and at least two radii of curvature on the other side of the same center portion, and wherein the cross-section is asymmetrical, with respect to a plane defined by the center of the gap, to the cross-section of the center portion of the other sealing member to enable relative movement between the first and second windowpanes; whereby a hermetically sealed cavity is formed between the first and the second windowpanes and the first windowpane and the second windowpane both retain their pre-bond surface finishes. 21. A window assembly in accordance with claim 20, wherein the first windowpane is hermetically sealed to the first sealing member using a soldering process. 22. A window assembly in accordance with claim 21, wherein the soldering process utilizes a solder glass material. 23. A window assembly in accordance with claim 20, further comprising a third windowpane disposed between the first and second windowpanes such that the sealed cavity is subdivided into a first cavity between the first and third windowpanes and a second cavity disposed between the second and third windowpanes. 24. A window assembly in accordance with claim 23, wherein the first cavity is hermetically sealed from the second cavity. 25. A window assembly in accordance with claim 20, further comprising: a spacer assembly disposed between the first and second windowpane sheets for maintaining a gap therebetween; and the spacer assembly floating with respect to at least one of the first and second windowpanes. 26. A window assembly in accordance with claim 25, further comprising: a viewing area defined across the center of the windowpanes where visibility through the window assembly is not blocked by the sealing members; and wherein the spacer assembly is disposed around the periphery of the windowpanes and occupies less than 10% of the viewing area. 27. A window assembly in accordance with claim 25, further comprising: a viewing area defined across the center of the windowpanes where visibility through the window assembly is not blocked by the sealing members; and wherein the spacer is disposed between the windowpanes and occupies at least 10% of the viewing area. 28. A window assembly in accordance with claim 25, wherein the spacer assembly comprises a muntin assembly including a plurality of horizontal and vertical muntin bars. 29. A window assembly in accordance with claim 25, wherein the spacer assembly comprises a plurality of generally parallel strands of a first fiber. 30. A window assembly in accordance with claim 29, wherein the first fiber is formed of a glass material. 31. A window assembly in accordance with claim 29, wherein the spacer assembly further comprises a plurality of generally parallel strands of a weft fiber interwoven with the strands of the first fiber. 32. A window assembly in accordance with claim 31, wherein one of the first fiber and the weft fiber is formed of a glass material. 33. A window assembly in accordance with claim 20, wherein: the inner edges of the first and second sealing members are each sealed to the inward-facing surfaces of the respective first and second windowpanes; and the outer edges of the sealing members extend outwardly past the periphery of the windowpanes to define a seal member profile having an interior cavity. 34. A window assembly in accordance with claim 33, further comprising: spacer anchors disposed at the periphery of the spacer assembly and having an anchor profile; the anchor profile adapted to fit within the seal member profile such that lateral movement of the spacer assembly is substantially restricted by the spacer anchor. 35. A window assembly in accordance with claim 33, further comprising: a holding block including a base portion, riser portions projecting upwardly from the base portion to define a seal cavity therebetween, and bearing surfaces disposed at the top of the riser portions; the holding block being dimensioned to fit against the edge of the window assembly such that when the edges of the first and second windowpanes bear against the bearing surfaces, the outwardly extending portions of the seal members fit within the seal cavity.
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