Arcuate blind

Claim 2

A nonplanar blind comprising a pair of end rails for location in parallel spaced relation, mounting means mounting said end rails in said parallel spaced relation and adapted for fastening to a building construction, flexible ladders extending between said end rails, a plurality of slats extending through and supported by said ladders, an elongate stay means extending through said slats and having opposite ends extending respectively into and terminating in endwise bearing engagement with said rails, said stay means being arcuate in a plane transverse to said rails for maintaining said slats in a nonplanar relation defined by said stay means.

Claim 3

A nonplanar blind according to claim 1, said mounting means comprising a pair of mounting brackets at opposite ends of each end rail for fastening to a building construction, said stay means comprising at least one stiff resilient elongate element extending through said slats under longitudinal compression maintained by said endwise bearing engagement with said rails, and support means in holding engagement with an intermediate region of said elongate element other than the midpoint thereof and adapted for fastening to the building construction to maintain a specified arcuate relationship of said elongate element.

Claim 4

A nonplanar blind according to claim 2, said elongate element having its opposite ends in abutting engagement in respective end rails.

Claim 5

A nonplanar blind comprising a pair of end rails for location in parallel spaced relation, mounting means mounting said rails in said parallel spaced relation and adapted for fastening to a building construction, flexible ladders extending between said end rails, a plurality of slats extending through and supported by said ladders, an elongate stay means extending through said slats and having opposite ends connected to said rails, said stay means being arcuate in a plane transverse to said rails for maintaining said slats in a nonplanar relation defined by said stay means, said stay means comprising at least one stiff resilient elongate element extending through said slats and having its opposite ends in respective end rails, and support means in holding engagement with an intermediate region of said elongate element and adapted for fastening to the building construction to maintain the arcuate relationship of said elongate element, said support means comprising an elongate tie member extending generally parallel to said slats intermediate said end rails, fixture means for securing said tie member to a building construction, and a connector extending between said tie member and an intermediate region of said stay means to aid in maintaining the arcuate condition thereof.

Claim 6

A nonplanar blind comprising a pair of end rails for location in parallel spaced relation, mounting means mounting said rails in said parallel spaced relation and adapted for fastening to a building construction, flexible ladders extending between said end rails, a plurality of slats extending through and supported by said ladders, an elongate stay means extending through said slats and having opposite ends connected to said rails, said stay means being arcuate in a plane transverse to said rails for maintaining said slats in a nonplanar relation defined by said stay means, said stay means comprising at least one stiff resilient elongate element extending through said slats and having its opposite ends in respective end rails, and support means in holding engagement with an intermediate region of said elongate element and adapted for fastening to the building construction to maintain the arcuate relationship of said elongate element, said support means comprising an elongate tie member extending generally parallel to said slats intermediate said end rails, fixture means for securing said tie member to a building construction, and a connector extending between said tie member and an intermediate region of said stay means to aid in maintaining the arcuate condition thereof.

Claim 7

A nonplanar blind according to claim 4, said elongate tie member being on the convex side of said blind, and said connector being in tension between said tie member and stay means.

Claim 8

A nonplanar blind according to claim 5, said tie member comprising a wire, and said fixture means comprising a rotary pin for winding and exerting tension on said wire.

Claim 9

A nonplanar blind according to claim 5, said connector comprising a clip extending between and having opposite ends engageable about said tie member and stay means.

Claim 10

A nonplanar blind according to claim 4, said elongate stay means having opposite ends extending respectively into and terminating in endwise bearing engagement with said rails.

Claim 11

A nonplanar blind according to claim 8, said elongate element extending through said slats under longitudinal compression maintained by said endwise bearing engagement with said rails, and said connecter extending between said tie member and an intermediate region of said stay means spaced from the midpoint thereof to aid in maintaining a specific arcuate condition thereof.