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US 5,010,939 AGranted
Blind for arched windows
OwnerWilliam J. Kinginventor
Life of this patent
Estimating the term…
Abstract
A foldable arcuate blind for arched windows using a central transmission mechanism for opening and closing.
Claims6
An arcuate blind for arched windows having a first assembly of elements comprising:
- a base having an upper side and a lower side;
- an arcuately foldable body being adaptable to assume an open position and a closed position, the arcuately foldable body having
- a stationary radial end-portion and a movable radial end-portion, the stationary radial end-portion rigidly supported on the upper side of the base,
- an inner arc and an outer arc, the two arcs having a common center, and being fully developed when the foldable body is in the open position;
- a rigid leading rib connected along the movable radial endportion, the rigid leading rib having an inner end and an outer end, the inner end being movable in the vicinity of the inner arc and the outer end being movable in the vicinity of the outer arc;
- central transmission means having an inlet and an outlet, for transmitting substantially radial motion to the leading rib with the outlet being connected to the inner end of the leading rib, thus causing the foldable body to fold and unfold in a radial manner, the transmission means supported on the base in the vicinity of the common center of the inner and outer arcs, the central transmission means comprising a worm gear, the worm gear being positioned in a manner to act as a brake against any spontaneous movement of the blind;
- and
- motion means connected to the inlet of the central transmission means for providing external motion to said central transmission means.
5 more elements
An article comprising
- a window having an arched portion, and
- an arcuate blind disposed within the arched portion of the window, the arcuate blind having a first assembly of elements comprising:
- a base having an upper side and a lower side;
- an arcuately foldable body being adaptable to assume an open position and a closed position, the arcuately foldable body having
- a stationary radial end-portion and a movable radial end-portion, the stationary radial end-portion rigidly supported on the upper side of the base,
- an inner arc and an outer arc, the two arcs having a common center, and being fully developed when the
- a rigid leading rib connected along the movable radial endportion, the rigid leading rib having an inner end and an outer end, the inner end being movable in the vicinity of the inner arc and the outer end being movable in the vicinity of the outer arc;
- central transmission means having an inlet and an outlet, for transmitting substantially radial motion to the leading rib with the outlet being connected to the inner end of the leading rib, thus causing the foldable body to fold and unfold in a radial manner, the transmission means supported on the base in the vicinity of the common center of the inner and outer arcs, the central transmission means comprising a worm gear, the worm gear being positioned in a manner to act as a brake against any spontaneous movement of the blind;
- and
- motion means connected to the inlet of the central transmission means for providing external motion to said central transmission means.
7 more elements
Dependencies are inferred from the claim text.