US4283451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-transmitting roofing and cladding panel
Assignee: Ziklag Reinforced Plastics Ltd
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Filing: 1979-03-26
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Granted: 1981-08-11
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Expires: 1999-03-26
Abstract
Abstract The invention provides a light transmitting roofing or cladding panel comprising a translucent rigid plastic sheet formed into a corrugated structural panel wherein parallel slopes of the corrugated panel are provided with a reflecting and opacifying material to form alternate light transmitting and light reflecting zones of a fixed ratio whereby said panels are adapted upon proper positioning relative to the sun's apparent passage to allow natural sunlight to pass therethrough while at the same time minimizing penetration of the sun's heat radiation. The invention also provides a method of providing natural sunlight for buildings, workshops and warehouses while minimizing penetration of the sun's heat rays comprising positioning said panel in a structure with the translucent light transmitting zones thereof substantially facing north.
Inventors
- 👤 Shoshana Abrahami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:00
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/24; E04D3/28; E04C; E04C2/00; E04C2/54; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/24802; Y10T428/24893; Y10T428/24901; Y10T428/24917
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
135 words
A light transmitting roofing or cladding panel consisting of a translucent, structural, rigid plastic sheet formed into a corrugated panel having two sets of slopes wherein the slopes of each set are respectively substantially identically oriented, the slopes of only one of said sets being provided with a reflecting and opacifying material embedded within the surface of said panel and the slopes of said other set being made translucent to form alternate light transmitting and light reflecting zones of a fixed ratio and wherein the area of the reflecting zones is equal to or greater than that of the light transmitting zones, whereby said panels are adapted upon proper positioning relative to the sun's apparent passage to allow natural daylight to pass therethrough while at the same time, minimizing penetration of the sun's heat radiation.
Claim 2
Dependent Claim
135 words
A light transmitting roofing or cladding panel consisting of a translucent, structural, rigid plastic sheet formed into a corrugated panel having two sets of slopes wherein the slopes of each set are respectively substantially identically oriented, the slopes of only one of said sets being provided with a reflecting and opacifying material embedded within the surface of said panel and the slopes of said other set being made translucent to form alternate light transmitting and light reflecting zones of a fixed ratio and wherein the area of the reflecting zones is equal to or greater than that of the light transmitting zones, whereby said panels are adapted upon proper positioning relative to the sun's apparent passage to allow natural daylight to pass therethrough while at the same time, minimizing penetration of the sun's heat radiation.
Claim 3
Dependent Claim
29 words
A light transmitting roofing or cladding panel according to claim 1 wherein said reflecting and opacifying material extends up said parallel slopes beyond the crests of said corrugated panel.
Claim 4
Dependent Claim
30 words
A light transmitting roofing or cladding panel according to claim 1 wherein said reflecting and opacifying material is concentrated in a thin layer near the upper surface of said panel.
Claim 5
Dependent Claim
32 words
A light transmitting roofing or cladding panel according to claim 1 wherein the edge of said panel is of uniform cross-section having a cross-sectional thickness of about 0.3 to about 3 mm.
Claim 6
Dependent Claim
25 words
A light transmitting roofing or cladding panel according to claim 4 wherein said panels have a cross-sectional thickness of about 0.5 to about 1.5 mm.
Claim 7
Dependent Claim
28 words
A light transmitting roofing or cladding panel according to claim 1 wherein said corrugated panel is shaped for overlapping juxtapositioning with standard asbestos and sheet metal corrugated panels.
Claim 8
Dependent Claim
29 words
A light transmitting roofing or cladding panel according to claim 6 wherein said corrugated panel is formed with curved crests for overlapping juxtapositioning with standard curved asbestos corrugated panels.
Claim 9
Dependent Claim
20 words
A light transmitting roofing or cladding panel according to claim 1 wherein said panel is formed from fiberglass reinforced polyester.
Claim 10
Independent Claim
87 words
A method of providing natural sunlight for buildings, workshops and warehouses while minimizing penetration of the sun's heat rays consisting of providing a light transmitting roofing or cladding panel made of a translucent structural rigid plastic sheet formed into a corrugated structural panel wherein parallel slopes of the panel are provided with a reflecting and opacifying material to form alternate light transmitting and light reflecting zones of a fixed ratio and positioning said panel in a structure with the translucent light transmitting zones thereof substantially facing north.
Claim 11
Independent Claim
87 words
A method of providing natural sunlight for buildings, workshops and warehouses while minimizing penetration of the sun's heat rays consisting of providing a light transmitting roofing or cladding panel made of a translucent structural rigid plastic sheet formed into a corrugated structural panel wherein parallel slopes of the panel are provided with a reflecting and opacifying material to form alternate light transmitting and light reflecting zones of a fixed ratio and positioning said panel in a structure with the translucent light transmitting zones thereof substantially facing north.
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) | 1984-08-10 | 1985-02-09 | 1985-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-10 | 1989-02-09 | 1989-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-10 | 1993-02-09 | 1993-08-11 | $7700.00 | Window Closed / Lapsed |