Patent US3646641A successfully refreshed from Google Patents.
US3646641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamping connection for curtains and the like
Assignee: ELKA TRUST REG
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Filing: 1970-05-14
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Granted: 1972-03-07
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Expires: 1990-05-14
Abstract
Abstract For adjusting the length of a finished curtain or the like to the height of a window, door etc. of less height than the length of the curtain a clamping connection is provided for holding a transverse fold of required width made in the upper portion of the curtain and adjusting the curtain to the desired height. The clamping connection comprises a number of clamping devices attached in transversely spaced relation along the upper marginal portion of the curtain, the clamping devices having coacting clamping members adapted to engage and lock therebetween the fold of the curtain to hold the curtain in the required position.
Inventors
- 👤 Lucas Wilhelmus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:14
CPC Classifications
A; A47; A47H; A47H13/00; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/3439; Y10T24/344; Y10T24/44; Y10T24/44077
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
52 words
A clamping connection for curtains and the like, comprising a number of spaced clamping members fixed to the curtain in a transversely extending row, said clamping members each having a pair of coacting clamping sections arranged to engage a transverse fold of the curtain and to hold it in any desired position.
Claim 2
Dependent Claim
52 words
A clamping connection for curtains and the like, comprising a number of spaced clamping members fixed to the curtain in a transversely extending row, said clamping members each having a pair of coacting clamping sections arranged to engage a transverse fold of the curtain and to hold it in any desired position.
Claim 3
Dependent Claim
70 words
A clamping connection for curtains and the like, comprising a number of spaced clamping members fixed to the curtain in a transversely extending row, said clamping members each having a pair of coacting clamping sections arrangEd to engage a transverse fold of the curtain and to hold it in a predetermined position, said curtain including a transverse row of loop-shaped mounting supports for fixing said clamping members to the curtain.
Claim 4
Dependent Claim
70 words
A clamping connection for curtains and the like, comprising a number of spaced clamping members fixed to the curtain in a transversely extending row, said clamping members each having a pair of coacting clamping sections arrangEd to engage a transverse fold of the curtain and to hold it in a predetermined position, said curtain including a transverse row of loop-shaped mounting supports for fixing said clamping members to the curtain.
Claim 5
Dependent Claim
40 words
A clamping connection according to claim 2, in which a band is provided along the upper edge of the curtain and extends parallel along the length of said edge, said band being connected at predetermined spaced intervals with the curtain.
Claim 6
Dependent Claim
87 words
A clamping connection according to claim 2, in which the clamping members each consist of a substantially U-shaped clamp having two legs provided with coacting locking means on the ends thereof, one leg of each clamp passing through one of said loop-shaped mounting supports for attachment of the clamp to the curtain, said locking means on the ends of said legs being engageable with one another to hold said transverse fold of the curtain when introduced between said coacting locking means on the legs of the clamp.
Claim 7
Dependent Claim
82 words
A clamping connection according to claim 4, in which said locking means comprise a recess formed at the end portion of one of said legs of the clamp and a projection at the end portion of the other leg of the clamp, the recess and projection being so dimensioned that upon engagement of the projection in the recess with the fold of the curtain inserted therebetween, the material of the fold is introduced into the recess and clamped therein by the projection.
Claim 8
Dependent Claim
17 words
A clamping connection according to claim 4, in which said legs of the U-shaped clamp are resilient.
Claim 9
Dependent Claim
76 words
A clamping connection for curtains and the like, comprising a number of spaced clamping members fixed to the curtain in a transversely extending row, said clamping members each having a pair of coacting clamping sections arranged to engage a transverse fold of the curtain and to hold it in a predetermined position, and with said transversely extending row of spaced clamping members being fixed to a transverse band attached to the upper portion of the curtain.
Claim 10
Dependent Claim
76 words
A clamping connection for curtains and the like, comprising a number of spaced clamping members fixed to the curtain in a transversely extending row, said clamping members each having a pair of coacting clamping sections arranged to engage a transverse fold of the curtain and to hold it in a predetermined position, and with said transversely extending row of spaced clamping members being fixed to a transverse band attached to the upper portion of the curtain.
Claim 11
Dependent Claim
25 words
A clamping connection according to claim 7, in which each clamping member comprises two distinct parts, each part including one of said coacting clamping sections.
Claim 12
Dependent Claim
40 words
A clamping section according to claim 8, in which said two coacting parts of each clamping member are fixed each to a band extending transversely of the curtain along the upper portion thereof, the coacting clamping sections facing each other.
Claim 13
Dependent Claim
39 words
A clamping connection according to claim 8, in which said two coacting parts of each clamping member are fixed each to the facing inner sides of a folded band extending transversely of the curtain along the upper portion thereof.
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) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |