US3645317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Venetian blind
Assignee: CHARLES H MALONE AND CO Inc
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Filing: 1969-11-26
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Granted: 1972-02-29
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Expires: 1989-11-26
Abstract
Abstract A Venetian blind is formed of strips which are provided with a thin layer of metal such that they reflect unwanted infrared radiation yet are substantially transparent to visible light except in the closed position when, by causing adjacent strips to overlap, the closed blind is substantially less transparent to visible light.
Inventors
- 👤 Charles H Malone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:57
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/38; E06B9/386
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
152 words
In a Venetian blind comprising a plurality of axially aligned blind strips supported adjacent their ends by movable supporting elements capable of simultaneously rotating the strips substantially about their longitudinal axes from a closed position in which the strips lie in substantially a single plane to an open position in which the planes of the individual strips are substantially parallel but spaced from one another to allow passage of light, the improvement which comprises blind strips composed essentially of transparent body material and carrying a superimposed transparent reflective layer of metal, the strips being mounted so that their central longitudinal axes are positioned apart by a distance approximately one-half the width of the strip to provide, when the blind is in a closed position, two layers of metal over the area of the blind which act to reduce the visible light transparency through the blind sufficiently to make the blind relatively nontransparent.
Claim 2
Dependent Claim
152 words
In a Venetian blind comprising a plurality of axially aligned blind strips supported adjacent their ends by movable supporting elements capable of simultaneously rotating the strips substantially about their longitudinal axes from a closed position in which the strips lie in substantially a single plane to an open position in which the planes of the individual strips are substantially parallel but spaced from one another to allow passage of light, the improvement which comprises blind strips composed essentially of transparent body material and carrying a superimposed transparent reflective layer of metal, the strips being mounted so that their central longitudinal axes are positioned apart by a distance approximately one-half the width of the strip to provide, when the blind is in a closed position, two layers of metal over the area of the blind which act to reduce the visible light transparency through the blind sufficiently to make the blind relatively nontransparent.
Claim 3
Dependent Claim
29 words
A Venetian blind according to claim 1 in which the body portion of each strip is tinted to an extent such as to remain substantially transparent to visible light.
Claim 4
Dependent Claim
26 words
A Venetian blind according to claim 1 in which a layer of tinted light-transparent material is applied to at least one side of the blind strip.
Claim 5
Dependent Claim
34 words
A Venetian blind according to claim 1 in which a layer of tinted light-transparent material is applied to each side of the strip, the colors of the tinted material being different from one another.
Claim 6
Dependent Claim
32 words
A Venetian blind according to claim 1 in which a layer of tinted transparent material is applied to each side of the strip, the colors of the tinted material being substantially subtractive.
Claim 7
Dependent Claim
24 words
A Venetian blind according to claim 1 in which a layer of transparent material is applied to the metal layer in intimate contact therewith.
Claim 8
Dependent Claim
83 words
A Venetian blind according to claim 1 in which each strip comprises a composite assembly comprising at least two base layers of substantially transparent heat-setable plastic body material, a transparent reflective layer of metal applied to at least one surface of one of the base layers facing another of the base layers, and a layer of transparent film-forming adhesive material interposed between and securing the adjacent layers of base material, each of the layers of adhesive material containing a different transparent coloring material.
Claim 9
Dependent Claim
36 words
A Venetian blind according to claim 7 in which the composite assembly is heat-set in contoured shape, the heat-setting having been effected at a temperature substantially above the temperature which the strip will attain in use.
References Cited (Backward Citations)
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US1937342A
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US2774421A
Cited
US2378591A
Cited
US2413464A
Cited
US2617329A
Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |