Patent US4969966A successfully refreshed from Google Patents.
US4969966A
Expired / Lapsed
US
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Method of producing curved laminated glass panels
Assignee: Water Bonnet Manufacturing Inc
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Filing: 1989-06-26
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Granted: 1990-11-13
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Expires: 2009-06-26
Abstract
Abstract The method of manufacturing curved laminated glass panels comprises overlaying at least two sheets of flat strengthened glass. Adjacent edges of the at least two sheets are sealed along a predetermined extent thereon to form a closed space between these two sheets. An opening is formed into the closed space along one edge of the glass sheets and glass laminating material is poured into the opening to fill the space between the two sheets. The opening is then closed and the at least two sheets are compressed in a preselected curvature form until the sheets assume the curvature of the form. Finally, the two sheets are held in the preselected curvature until the glass laminating material substantially cures.
Inventors
- 👤 L. C. Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:34
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10036; B32B17/10082; B32B17/10091; B32B17/10807; B32B17/10889; B32B17/10899; B32B17/10908; B32B17/10917; C; C03; C03B; C03B23/00; C03B23/02; C03B23/023; C03B23/03; C03B23/0302; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1043; Y10T156/1044; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/31; Y10T428/315; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31649
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
140 words
A method of producing a curved, laminated glass panel from at least two planar sheets of tempered glass comprising the steps of: overlaying the at least two sheets of flat tempered glass; sealing adjacent edges of the at least two sheets along a predetermined extent thereof to form a closed space between the sheets; forming an opening into the closed space along one edge of the glass sheets; pouring a glass laminating material into the opening to fill the space between the at least two sheets; closing the opening; compressing the at least two sheets in a form having a preselected curvature until the sheets assume the curvature of the form; and holding the at least two sheets in the preselected curvature until the glass laminating material is substantially cured, and thereafter removing the curved glass panel from the form.
Claim 2
Independent Claim
140 words
A method of producing a curved, laminated glass panel from at least two planar sheets of tempered glass comprising the steps of: overlaying the at least two sheets of flat tempered glass; sealing adjacent edges of the at least two sheets along a predetermined extent thereof to form a closed space between the sheets; forming an opening into the closed space along one edge of the glass sheets; pouring a glass laminating material into the opening to fill the space between the at least two sheets; closing the opening; compressing the at least two sheets in a form having a preselected curvature until the sheets assume the curvature of the form; and holding the at least two sheets in the preselected curvature until the glass laminating material is substantially cured, and thereafter removing the curved glass panel from the form.
Claim 3
Dependent Claim
28 words
The method of claim 1, and including the step of positioning spacers between the at least two sheets along the edges thereof for establishing a preselected spacing therebetween.
Claim 4
Dependent Claim
22 words
The method of claim 1, wherein the step of holding includes holding the at least two sheets in the form under compression.
Claim 5
Dependent Claim
44 words
The method of claim 1, wherein the step of holding includes the steps of removing at least two sheets from the form and connecting a stringer from edge-to-edge of the sheets to hold the curved shaped until the glass laminating material is substantially cured.
References Cited (Backward Citations)
US3806400A
Cited
US4234533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-11-12 | 1994-05-14 | 1994-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-12 | 1998-05-14 | 1998-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-12 | 2002-05-14 | 2002-11-13 | $7700.00 | Window Closed / Lapsed |