US4102381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strip curtain
Assignee: Individual
•
Filing: 1977-07-29
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Granted: 1978-07-25
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Expires: 1997-07-29
Abstract
Abstract A non-stretchable actuating tape moves in the curtain track, engaged by a sprocket wheel attached to the pivot shaft of each sliding element supporting a curtain strip. A slip coupling and stop member limits pivoting. A beaded chain limits spacing of sliding elements.
Inventors
- 👤 Konrad Bratschi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:08
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/36; E06B9/362; E06B9/364; E06B9/368; Y; Y10; Y10S; Y10S160/00; Y10S160/90
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
91 words
A strip curtain which includes a curtain track, sliding elements guided in the track and interconnected by a flexible separation limiting means, said sliding elements being adapted to have attached thereto freely hanging curtain strips, and an actuating tape movably positioned within the curtain track, said curtain comprising: a vertical pivot shaft for each sliding element, a pinion mounted on each pivot shaft, the pinion being in permanent engagement with the actuating tape, and the sliding elements having slip coupling means and stop means limiting the pivoting of the curtain strips.
Claim 2
Dependent Claim
91 words
A strip curtain which includes a curtain track, sliding elements guided in the track and interconnected by a flexible separation limiting means, said sliding elements being adapted to have attached thereto freely hanging curtain strips, and an actuating tape movably positioned within the curtain track, said curtain comprising: a vertical pivot shaft for each sliding element, a pinion mounted on each pivot shaft, the pinion being in permanent engagement with the actuating tape, and the sliding elements having slip coupling means and stop means limiting the pivoting of the curtain strips.
Claim 3
Dependent Claim
55 words
The strip curtain of claim 1 wherein the curtain track has on both sides an inner and outer tape guide, the portion of the actuating tape within the inner tape guide being in engagement with the pinions, and a portion of the tape in the outer tape guide being out of engagement with the pinions.
Claim 4
Dependent Claim
35 words
The strip curtain of claim 2 further comprising turn-about rollers at both ends of the curtain track for the actuating tape, and coupling means for linking the ends of the tape into a closed loop.
Claim 5
Dependent Claim
37 words
The strip curtain of claim 2 wherein the tape is positioned in the inner tape guide on one side of the curtain track and in the outer tape guide on the opposite side of the curtain track.
Claim 6
Dependent Claim
17 words
The strip curtain of claim 1 wherein the curtain track includes at least one curved track segment.
Claim 7
Dependent Claim
41 words
The strip curtain of claim 1 wherein the pinion has at least one leaf spring pressing against the pivot shaft whereby the pinion becomes freely rotatable relative to the pivot shaft when a predetermined turning moment of the pinion is exceeded.
Claim 8
Dependent Claim
29 words
The strip curtain of claim 1 wherein the actuating tape is made of a flexible synthetic plastic material having steel strands in its edges to prevent its longitudinal stretching.
Claim 9
Dependent Claim
22 words
The strip curtain of claim 1 wherein the pinions of adjoining sliding elements are attached in vertical displacement relative to each other.
Claim 10
Dependent Claim
37 words
The strip curtain of claim 3 wherein the turn-about rollers are respectively positioned in end portions of the curtain track and at least one of the turn-about rollers is adapted to be connected to a drive mechanism.
Claim 11
Dependent Claim
21 words
The strip curtain of claim 9 wherein additional slip coupling means is positioned between the drive mechanism and the actuating tape.
Claim 12
Dependent Claim
68 words
The strip curtain of claim 2 wherein the curtain is made of two units with a two-part actuating tape whose respective ends are joined with overlap and maintained spaced by a connecting member, and in front of the overlap the tape is positioned on both sides of the track in one of the tape guides, while behind the overlap the tape is positioned in the other tape guide.
Claim 13
Dependent Claim
39 words
The strip curtain of claim 1 wherein a leading sliding element is connected to a master slide having retaining means which is detachably connectable to a fixedly positioned retaining means in the extended state of the separation limiting 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) | 1981-07-24 | 1982-01-23 | 1982-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-24 | 1986-01-23 | 1986-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-24 | 1990-01-23 | 1990-07-25 | $7700.00 | Window Closed / Lapsed |