US3876489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of multi-pane windows
Assignee: Saint Gobain Industries SA
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Filing: 1973-12-19
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Granted: 1975-04-08
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Expires: 1993-12-19
Abstract
Abstract Apparatus for making two-pane thermal windows with the panes thereof separated by plastic filaments around the edge withdraws alternate glass sheets from a conveyor line, carries them at their four edges successively past an extruding station where a plastic filament is laid down on one face thereof, combines the sheets having a plastic filament thereon with the remaining sheets, and extrudes a further filament and applies a protective tape to the periphery of the assembly. Apparatus for the manufacture of three-pane windows applies a plastic filament to two out of three sheets from the conveyor line and includes an additional assembly station at which a third sheet bearing a plastic filament is combined with two sheets already combined together.
Inventors
- 👤 Pierre Chenel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:07
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/66; E06B3/673; E06B3/67365; C; C03; C03B; C03B23/00; C03B23/20; C03B23/24; C03B23/245; E06B3/67369; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1744; Y10T156/1768; Y10T156/1798
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
127 words
Apparatus for the manufacture of multiple-pane windows comprising: a. first conveyor means to deliver sheets of glass to an assembly station, b. means to form a plastic filament, c. second conveyor means to carry a sheet of glass past said forming means to present the edges thereof successively to said forming means, d. first transfer means to transfer sheets of glass from said first conveyor means to said second conveyor means, e. second transfer means to transfer sheets of glass from said second conveyor means to said assembly station, and f. means at said assembly station to press together a sheet of glass delivered by said first conveyor means to said assembly station and a plastic filament on a sheet of glass delivered by said second transfer
Claim 2
Dependent Claim
127 words
Apparatus for the manufacture of multiple-pane windows comprising: a. first conveyor means to deliver sheets of glass to an assembly station, b. means to form a plastic filament, c. second conveyor means to carry a sheet of glass past said forming means to present the edges thereof successively to said forming means, d. first transfer means to transfer sheets of glass from said first conveyor means to said second conveyor means, e. second transfer means to transfer sheets of glass from said second conveyor means to said assembly station, and f. means at said assembly station to press together a sheet of glass delivered by said first conveyor means to said assembly station and a plastic filament on a sheet of glass delivered by said second transfer
Claim 3
Dependent Claim
36 words
Apparatus according to claim 1 further comprising means to deposit a further plastic filament between the edges of two spaced sheets of glass, and means to deliver to said depositing means pairs of sheets of glass
Claim 4
Dependent Claim
24 words
Apparatus according to claim 1 further comprising, as part of said first conveyor means, to dispose sheets of glass with an edge along a
Claim 5
Dependent Claim
10 words
Apparatus according to claim 1 wherein said first transfer means
Claim 6
Dependent Claim
24 words
Apparatus according to claim 1 wherein said pressing means comprise suction cups disposed to engage one face of a sheet of glass bearing on
Claim 7
Dependent Claim
21 words
Apparatus according to claim 1 wherein said second transfer means include movable positioning stops to locate a sheet of glass in
Claim 8
Dependent Claim
21 words
Apparatus according to claim 6 further including at said assembly station means to locate in two mutually perpendicular directions sheets of
Claim 9
Dependent Claim
23 words
Apparatus according to claim 1 comprising a third conveyor means to carry on edge pairs of glass sheets pressed together by said pressing
Claim 10
Dependent Claim
21 words
Apparatus according to claim 8 further comprising radiant heating means and roller pressing means disposed adjacent said third conveyor means at
Claim 11
Dependent Claim
34 words
Apparatus according to claim 9 further comprising means disposed adjacent said third conveyor means to inject a plastic filament between the edge of pairs of glass sheets and thereafter to apply an adhesive tape
Claim 12
Dependent Claim
60 words
Apparatus according to claim 9 further comprising a third transfer means and, adjacent said third conveyor means at a point between said assembly station and roller pressing means, a second pressing means to press together two adhered sheets of glass on said third conveyor means and a plastic filament on a sheet of glass delivered by said third transfer means.
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) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |