US3647285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass window structures eliminating jamin interference fringes
Assignee: Ford Motor Co
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Filing: 1970-06-10
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Granted: 1972-03-07
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Expires: 1990-06-10
Abstract
Abstract A glass window structure which eliminates Jamin interference fringes includes a frame for supporting a pair of glass brackets in spaced relationship. A first glass bracket is supported in the frame and this bracket is cut from a glass ribbon manufactured in a process wherein molten glass is flowed out upon a molten bath and processed thereon so that the glass ribbon has a slight taper therein. A second glass bracket is also supported in the frame and this second bracket is cut from the same glass ribbon as the first bracket. Other window structures which eliminate the Jamin fringes are structures in which (1) at least one of the glass brackets has a tapering thickness from one side to the other side, or (2) both brackets have different tapering thicknesses with the thicker edges being positioned in any manner.
Inventors
- 👤 James E Harvey
- 👤 Max J Irland
- 👤 Victor L Lindberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:50
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/60; E; E06; E06B; E06B3/00; E06B3/66; E06B3/67; E06B3/6715; G02B5/00; G02B5/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
102 words
A glass window structure comprising: a frame for supporting a pair of glass brackets in spaced, generally parallel relationship; a first glass bracket supported in the frame, the first glass bracket being cut from a glass ribbon manufactured in a process wherein molten glass is flowed out upon a molten bath of material and processed thereon so that the glass ribbon has a taper therein whereby the bracket cut from the ribbon is thicker at one edge thereof than at the edge opposite the one edge thereof; and a second glass bracket supported in the frame whereby Jamin interference fringes are eliminated.
Claim 2
Dependent Claim
102 words
A glass window structure comprising: a frame for supporting a pair of glass brackets in spaced, generally parallel relationship; a first glass bracket supported in the frame, the first glass bracket being cut from a glass ribbon manufactured in a process wherein molten glass is flowed out upon a molten bath of material and processed thereon so that the glass ribbon has a taper therein whereby the bracket cut from the ribbon is thicker at one edge thereof than at the edge opposite the one edge thereof; and a second glass bracket supported in the frame whereby Jamin interference fringes are eliminated.
Claim 3
Dependent Claim
131 words
A glass window structure comprising: a frame for supporting a pair of glass brackets in spaced, geNerally parallel relationship; a first glass bracket supported in the frame, the first glass bracket being cut from a glass ribbon manufactured in a process wherein molten glass is flowed out upon a molten bath of material and processed thereon so that the glass ribbon has a taper therein whereby the bracket cut from the ribbon is thicker at one edge thereof than at the edge opposite the one edge thereof; and a second glass bracket formed by the same process as the first glass supported in the frame with the thicker edge of the second bracket not being in juxtaposition with the thicker edge of the first bracket whereby Jamin interference fringes are eliminated.
Claim 4
Dependent Claim
131 words
A glass window structure comprising: a frame for supporting a pair of glass brackets in spaced, geNerally parallel relationship; a first glass bracket supported in the frame, the first glass bracket being cut from a glass ribbon manufactured in a process wherein molten glass is flowed out upon a molten bath of material and processed thereon so that the glass ribbon has a taper therein whereby the bracket cut from the ribbon is thicker at one edge thereof than at the edge opposite the one edge thereof; and a second glass bracket formed by the same process as the first glass supported in the frame with the thicker edge of the second bracket not being in juxtaposition with the thicker edge of the first bracket whereby Jamin interference fringes are eliminated.
Claim 5
Dependent Claim
146 words
A glass window structure comprising: a frame for supporting a pair of glass brackets in spaced, generally parallel relationship; a first glass bracket supported in the frame, the first glass bracket being cut from a glass ribbon manufactured in a process wherein molten glass is flowed out upon a molten bath of material and processed thereon so that the glass ribbon has a taper therein whereby the bracket cut from the ribbon is thicker at one edge thereof than at the edge opposite the one edge thereof; and a second glass bracket formed by the same process as the first glass bracket supported in the frame with the thicker edge of the second bracket being located on the same side of the frame as the thin edge of the first bracket when the two brackets are in an assembled condition whereby Jamin interference fringes are eliminated.
Claim 6
Dependent Claim
146 words
A glass window structure comprising: a frame for supporting a pair of glass brackets in spaced, generally parallel relationship; a first glass bracket supported in the frame, the first glass bracket being cut from a glass ribbon manufactured in a process wherein molten glass is flowed out upon a molten bath of material and processed thereon so that the glass ribbon has a taper therein whereby the bracket cut from the ribbon is thicker at one edge thereof than at the edge opposite the one edge thereof; and a second glass bracket formed by the same process as the first glass bracket supported in the frame with the thicker edge of the second bracket being located on the same side of the frame as the thin edge of the first bracket when the two brackets are in an assembled condition whereby Jamin interference fringes are eliminated.
Claim 7
Dependent Claim
22 words
The glass window structure of claim 1 wherein the taper in the first glass bracket is at least 1 minute of arc.
Claim 8
Dependent Claim
24 words
The glass window structure of claim 2 wherein the taper in the first and second glass brackets is at least 1 minute of arc.
Claim 9
Dependent Claim
24 words
The glass window structure of claim 3 wherein the taper in the first and second glass brackets is at least 1 minute of arc.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |