US3701376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for slide-shifting and winding twin vertical screens or blades
Assignee: Griesser AG
•
Filing: 1969-12-23
•
Granted: 1972-10-31
•
Expires: 1989-12-23
Abstract
Abstract In a blind comprising a pair of vertical screens adapted to be rolled up or down on or from a winding drum, said screens consisting either of continuous sheets or of parallel blades adapted to be oriented to permit of controlling the ingress of air and light through the blind, in the closed or unrolled condition thereof, a device for producing the mutual lateral movement of said screens, this device comprising suspension means associated with the winding drum and operatively connected to the winding means whereby the operation of said winding means will both roll up the blind and cause the desired relative lateral movement of said screens.
Inventors
- 👤 Pierre Froget
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:48
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/36; E06B2009/2405
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
83 words
A blind comprising a pair of independent screens each consisting of a continuous sheet having longitudinally disposed apertures therein, a rotatably supported drum for the rolling of said pair of screens, a pair of suspension means connected to said drum and each suspension means being connected to one of said screens for supporting said screens in superposed vertical relationship, one of said suspension means being a slider slideably connected to said drum for movement in the direction of the axis of said drum.
Claim 2
Dependent Claim
83 words
A blind comprising a pair of independent screens each consisting of a continuous sheet having longitudinally disposed apertures therein, a rotatably supported drum for the rolling of said pair of screens, a pair of suspension means connected to said drum and each suspension means being connected to one of said screens for supporting said screens in superposed vertical relationship, one of said suspension means being a slider slideably connected to said drum for movement in the direction of the axis of said drum.
Claim 3
Dependent Claim
66 words
A blind as claimed in claim 1 wherein said drum has a longitudinal slot and said slider connected to one of said screens is slideably positioned through said slot whereby said slider and its connected screen can be manually moved laterally of the other of said screens and means are provided for rotating said drum and thereby winding and unwinding said screens relative to said drum.
Claim 4
Dependent Claim
107 words
A blind as claimed in claim 1, wherein a sleeve is fixed to said drum and has a helical groove, said slider is a ring and has a shoe extending through said helical groove, said sleeve also has a circular groove, the suspension means of the other of said screens consists of a second ring rotatably mounted on said sleeve and has a shoe extending through said sleeve circular groove, and means is provided for rotating said drum and thereby said sleeve whereby said screens can be wound or unwound on said rings while said slider and its attached screen is moved laterally of the other screen.
Claim 5
Dependent Claim
98 words
A blind as claimed in claim 1, wherein said drum is hollow and has a longitudinal slot, an internal screw rod extends longitudinally in said drum and is fixedly connected thereto, said slider consists of a nut mounted in threaded engagement with said rod, and means extends through said drum slot and is connected to said nut and to the screen attached to said nut, means are provided for rotating said drum and said screw rod whereby said nut and its connected screen are moved laterally during the winding and unwinding of said screens relative to said drum.
Claim 6
Dependent Claim
87 words
A blind as claimed in claim 1, wherein said drum is tubular and one of the suspension means is fixedly connected thereto, a rotatably driven screw rod extends in said drum, a nut is fixedly mounted in said drum and is mounted on said screw rod in threaded engagement therewith and said slider consists of rings fixedly retained on said screw rod and having one screen attached thereto, in order that when rotating The drum said slider presents a relative lateral movement in relation to said drum.
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) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |