US4593738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Venetian blind
Assignee: Individual
•
Filing: 1985-01-25
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Granted: 1986-06-10
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Expires: 2005-01-25
Abstract
Abstract A venetian blind utilizing a first elongated slat which is suspended by a pair of lines connected to opposite end portions of the slat along the elongation dimension. A second slat is placed atop first slat and is connected to a third line which moves one end portion of the elongated second slat along the top of the first slat.
Inventors
- 👤 Simon S. Chi Yu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:36
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/38; E06B9/386; E06B9/28; E06B9/30; E06B9/303; E06B9/384
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
188 words
A venetian blind comprising: a. a first elongated slat, said first slat including a top, bottom, and an edge portion therebetween, said first slat further including first and second end portions extending along said elongation of said first slat; b. first and second lines, said first line being linked to said first end portion of said first slat, said second line being linked to said second end portion of said first slat, said first and second lines supporting said first slat such that movement of said first and second lines in opposite directions tilts said first slat; c. a second elongated slat said second slat including a top, bottom and an edge portion therebetween, said second slat further including first and second portions extending along said elongation of said second slat; d. a third line, said third line being linked to said first end portion of said second slat, said second slat resting on said top of said first slat such that lifting of said first end portion of said second slat moves said second end portion of said second slat along said top of said first slat.
Claim 2
Dependent Claim
188 words
A venetian blind comprising: a. a first elongated slat, said first slat including a top, bottom, and an edge portion therebetween, said first slat further including first and second end portions extending along said elongation of said first slat; b. first and second lines, said first line being linked to said first end portion of said first slat, said second line being linked to said second end portion of said first slat, said first and second lines supporting said first slat such that movement of said first and second lines in opposite directions tilts said first slat; c. a second elongated slat said second slat including a top, bottom and an edge portion therebetween, said second slat further including first and second portions extending along said elongation of said second slat; d. a third line, said third line being linked to said first end portion of said second slat, said second slat resting on said top of said first slat such that lifting of said first end portion of said second slat moves said second end portion of said second slat along said top of said first slat.
Claim 3
Dependent Claim
28 words
The venetian blind of claim 1 which, further comprises a first bridging line between said first line and said second line along said bottom of said first slat.
Claim 4
Dependent Claim
28 words
The venetian blind of claim 2 which further comprises a second bridging line between said first line and said second line along said top of said first slat.
Claim 5
Dependent Claim
56 words
The venetian blind of claim 3 in which said second slat includes a slot therethrough, said slot including a tab extending from the periphery of said slot, said tab further including first and second edges opposite each other and spaced from one another, said first and second edges being positioned in diverging relationship with one another.
Claim 6
Dependent Claim
41 words
The venetian blind of claim 4 which further includes a fourth line connected to said third line and engaging said tab in said slot of said second slat, said fourth line serving to link said third line to said second slat.
Claim 7
Independent Claim
138 words
A device for controlling a twisting force of an object comprising: a. a plate having a first and second side and having an opening therethrough, said opening having an edge portion with at least one protuberance; b. a member having first and second legs resiliently positioned in relation to one another, said first and second legs being adapted to frictionally fit within said opening through said plate and rotatable within said opening in said plate upon the application of sufficient force on said member, said protuberance forcing said first and second legs toward one another during rotation of said member along said edge portion of said opening said member extending from at least said first side of said plate; c. means for connecting the object to said extention of said member from said first side of said plate.
Claim 8
Independent Claim
138 words
A device for controlling a twisting force of an object comprising: a. a plate having a first and second side and having an opening therethrough, said opening having an edge portion with at least one protuberance; b. a member having first and second legs resiliently positioned in relation to one another, said first and second legs being adapted to frictionally fit within said opening through said plate and rotatable within said opening in said plate upon the application of sufficient force on said member, said protuberance forcing said first and second legs toward one another during rotation of said member along said edge portion of said opening said member extending from at least said first side of said plate; c. means for connecting the object to said extention of said member from said first side of said plate.
Claim 9
Dependent Claim
14 words
The device of claim 6 in which said opening through said plate is angular.
Claim 10
Dependent Claim
43 words
The device of claim 6 in which said member extending from said first side of said plate includes a flange extending beyond the periphery of said opening through said plate and further comprises a cap substantially covering said first side of said plate.
Claim 11
Dependent Claim
31 words
The device of claim 8 in which further comprises an element connected to said plate and extending from said second side of said plate said element including an outer gripping surface.
Claim 12
Dependent Claim
21 words
The device of claim 9 in which said cap includes an opening therethrough and said member extends through said cap opening.
Claim 13
Dependent Claim
11 words
The device of claim 10 in which said cap is expandable.
References Cited (Backward Citations)
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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) | 1989-06-09 | 1989-12-09 | 1990-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-09 | 1993-12-09 | 1994-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-09 | 1997-12-09 | 1998-06-10 | $7700.00 | Window Closed / Lapsed |