US4951729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Venetian blind structure
Assignee: Individual
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Filing: 1989-04-26
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Granted: 1990-08-28
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Expires: 2009-04-26
Abstract
Abstract A venetian blind structure using a slat unit having first and second members adjacent one another. The edge portions of the first and second members are hingedly attached to one another. First and second lines are held to the edge portions of the slat unit and are used to tilt the slat when a first and second line are simultaneously pulled in opposite directions.
Inventors
- 👤 Simon S. Chi Yu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:17
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/28; E06B9/30; E06B9/303; E06B9/38; E06B9/386
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
153 words
A venetian blind structure comprising: a. a slat unit including a first member having first and second edge portions, and a second member having first and second edge portions, said second edge portion of said first member being hingedly attached to said first edge portion of said second member; b. a first line, said first line including means for holding said first line relative to said first member of said slat unit; c. a second line, said second line including means for holding said second line relative to said second member of said slat unit, said member holding said first line relative to said first member and said second line relative to said second member including a bridging line connected to said first and second lines said bridging line spanning the slat unit between said first and second lines; and d. means for moving said first and second line simultaneously in opposite directions.
Claim 2
Dependent Claim
153 words
A venetian blind structure comprising: a. a slat unit including a first member having first and second edge portions, and a second member having first and second edge portions, said second edge portion of said first member being hingedly attached to said first edge portion of said second member; b. a first line, said first line including means for holding said first line relative to said first member of said slat unit; c. a second line, said second line including means for holding said second line relative to said second member of said slat unit, said member holding said first line relative to said first member and said second line relative to said second member including a bridging line connected to said first and second lines said bridging line spanning the slat unit between said first and second lines; and d. means for moving said first and second line simultaneously in opposite directions.
Claim 3
Dependent Claim
32 words
The venetian blind structure of claim 1 in which said first and second members each include a width dimension, said first member width dimension being narrower than said second member width dimension.
Claim 4
Dependent Claim
22 words
The venetian blind structure of claim 3 in which said slat unit first member includes a core member surrounded by a sheath.
Claim 5
Dependent Claim
22 words
The venetian blind structure of claim 3 in which said slat unit second member includes a core member surrounded by a sheath.
Claim 6
Dependent Claim
47 words
The venetian blind structure of claim 4 in which said sheaths of said first and second members are a generally unitary member brought together at an area separating said first and second core members, to form a pair of pockets enclosing said first and second core members.
Claim 7
Dependent Claim
51 words
The venetian blind structure of claim 1 in which said slat unit is a first slat unit and said venetian blind structure further comprises a second slat unit disposed adjacent said first slat unit, said second edge portion of said second member being hingedly rotatable to contact said second slat unit.
Claim 8
Dependent Claim
26 words
The venetian blind structure of claim 1 which additionally comprises a third line, said third line being an element of means for lifting said slat unit.
Claim 9
Dependent Claim
21 words
The venetian blind structure of claim 7 in which said third line passes through said first member of said slat unit.
Claim 10
Dependent Claim
24 words
The venetian blind structure of claim 8 which additionally includes an eyelet positioned in said first member, said third line passing through said eyelet.
Claim 11
Dependent Claim
61 words
The venetian blind structure of claim 7 in which said means for holding said first line relative to said first member and said second line relative to said second member includes a bridging line connected to said first and second lines, said bridging line spanning the slat unit between said first and second lines, said third line looping said bridging line.
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) | 1993-08-27 | 1994-02-26 | 1994-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-27 | 1998-02-26 | 1998-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-27 | 2002-02-26 | 2002-08-28 | $7700.00 | Window Closed / Lapsed |