US3916973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Venetian blind
Assignee: JUSTIN HUPPE Firma
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Filing: 1973-03-19
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Granted: 1975-11-04
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Expires: 1993-03-19
Abstract
Abstract A venetian blind is provided with the usual plurality of spaced slats. Each slat has opposite outer edge portions which are turned under to provide respective reentrant flanges having free edge portions. Pairs of supporting cords for supporting and adjusting the inclination of these slats are disposed on opposite sides of the slats. Separate securing devices are provided for attaching the slats to the supporting cords with the securing devices being receivable between the slats and the reentrant flanges and having locking parts adapted to engage the respective free edges and outer securing edges of the slats to hold the securing devices in position on the slats.
Inventors
- 👤 Emil Schuppler
- 👤 Mario Ammazzalorso
- 👤 Heiko Coldewey
- 👤 Wilfried Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:03
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/38; E06B9/384
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
116 words
A venetian blind comprising a plurality of slats, each having on each outer edge a turned under reentrant flange having a free edge; pairs of supporting cords for supporting and adjusting the inclination of the slats, the cords of each pair being disposed on opposite sides of the slats; and separate securing devices for attaching the slats to the supporting cords, there being one securing area at said outer edge for each securing device, the securing devices being receivable between the slats and the flanges and having locking parts adapted to engage both the outer edge securing areas and the free edge of a respective slat to hold the securing devices in position on the slats.
Claim 2
Dependent Claim
116 words
A venetian blind comprising a plurality of slats, each having on each outer edge a turned under reentrant flange having a free edge; pairs of supporting cords for supporting and adjusting the inclination of the slats, the cords of each pair being disposed on opposite sides of the slats; and separate securing devices for attaching the slats to the supporting cords, there being one securing area at said outer edge for each securing device, the securing devices being receivable between the slats and the flanges and having locking parts adapted to engage both the outer edge securing areas and the free edge of a respective slat to hold the securing devices in position on the slats.
Claim 3
Dependent Claim
46 words
A venetian blind according to claim 1 in which each securing device is in the form of a substantially U-shaped bracket of which the base is adapted to be attached to the associated supporting cord, and each of the legs is formed with a locking part.
Claim 4
Dependent Claim
29 words
A venetian blind according to claim 2 in which each locking part is in the form of a barb adapted to lock behind the free edge of the flange.
Claim 5
Dependent Claim
35 words
A venetian blind according to claim 3 in which each leg has a head part of enlarged cross section, the base connecting the head parts of the two legs and being of smaller cross section.
Claim 6
Dependent Claim
44 words
A venetian blind according to claim 2 in which each of the supporting cords is formed with a projecting loop for each slat, the loop being receivable around the base of a securing device prior to location of that securing device in a slat.
Claim 7
Dependent Claim
33 words
A venetian blind according to claim 2 in which each supporting cord is formed with an opening therein for each slat, and each securing device includes a pin receivable in one such opening.
Claim 8
Dependent Claim
30 words
A venetian blind according to claim 6 in which the bracket has a forked head adapted to enclose the supporting cord on three sides and to receive securely the pin.
Claim 9
Dependent Claim
24 words
A venetian blind according to claim 7 in which the forked head is inclined at about 90* to the plane of the U-shaped bracket.
Claim 10
Dependent Claim
18 words
A venetian blind according to claim 6 in which rings are inserted to the openings of the cords.
Claim 11
Dependent Claim
23 words
A venetian blind according to claim 1 in which each supporting cord at intervals along its length is formed with preset bending points.
References Cited (Backward Citations)
US2130319A
Cited
US2749072A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |