Disclosed is a retractable lighting fixture having a retractable LED lighting layer. One or more optical layers (40, 240A/B, 340A/B, 440) may optionally be provided over the LED lighting layer (30, 230, 330, 430). The optical layer(s) and the LED lighting layer may optionally be movable relative to one another between at least being in an expanded spaced relation to one another and a compressed relation to one another. One or more LEDs (34, 134, 234A/B, 334A/B, 434) on the LED lighting layer may be individually controllable and such LEDs (34, 134, 234A/B, 334A/B, 434) may be selectively extinguished when they are in a retracted position.

One embodiment of a deployable structural system having sandwich-like shell stiffness and strength properties constructed of an outer elastic sheet (11) and an inner elastic sheet (12) connected by a plurality of parallel elongated substantially rigid webs (13) wherein hinges (14) constitute the connections. The hinge connection spacing dimensions on the inner and outer elastic sheets are differing such that the resulting assemblage may be elastically bent into a compact cylindrical configuration. Deployment is achieved through reversal of the bending process and application of sufficient external supports such that the deployed configuration is statically stable. Additional embodiments are described.

Methods for constructing and a building kit for use thereof are disclosed. The building kit includes a plurality of posts configured for embedding within square apertures of a foundation, wherein the posts have a cross-shaped cross-sectional shape, a plurality of cross-shaped cross-sectional shaped elongated members, a plurality of roof panels, wherein the roof panels include solar cells, and a plurality of wall panels having conforming shape to the cross-shaped cross-sectional shaped elongated members.

A retractable barrier system and method for inhibiting access to designated private and public areas both indoors and outdoor, including retail and warehouse aisles and the like, includes a flexible screen retractable and extensible from a rotatable rod coupled to a mounting member, the mounting member having an attachment mechanism for coupling with a receiving member such as storage rack assembly support post or bracket or the like.

The invention concerns a cutting device (1) for reducing the width of a ready-made roller blind blank (28) comprising a roller tube onto which a fabric has been wound. The cutting device (1) comprises a mandrel (13), which is adapted to be inserted into and hold an end to be cut of the roller tube, and a knife arrangement, which is adapted to circumferentially cut first the fabric wound on the roller tube and then the roller tube on the mandrel (13) such that the width of the ready-made roller blind blank (28) is reduced. The invention also concerns a ready-made roller blind blank (28), which comprises a roller tube, onto which a fabric has been wound and which is adapted to be cut by means of a cutting device (1) according to the invention. For this the roller blind blank (28) comprises a disposable wrapping, which bears a visible measurement scale along at least one end portion of the roller blind blank (28).

The invention concerns a cutting device (1) for reducing the width of a ready-made roller blind blank (28) comprising a roller tube onto which a fabric has been wound. The cutting device (1) comprises a mandrel (13), which is adapted to be inserted into and hold an end to be cut of the roller tube, and a knife arrangement, which is adapted to circumferentially cut first the fabric wound on the roller tube and then the roller tube on the mandrel (13) such that the width of the ready-made roller blind blank (28) is reduced. The invention also concerns a ready-made roller blind blank (28), which comprises a roller tube, onto which a fabric has been wound and which is adapted to be cut by means of a cutting device (1) according to the invention. For this the roller blind blank (28) comprises a disposable wrapping, which bears a visible measurement scale along at least one end portion of the roller blind blank (28).

A flexible curtain defines a major surface and is configured to repeatedly actuate to move between a deployed configuration and a stowed configuration. Two sensors are configured to detect different condition and are removably attached to two sensor attachment locations. The major surface extends across an operational surface of a target system such that the sensors detect the conditions of the target system when the flexible curtain defines the deployed configuration. The flexible curtain and the sensors converge at a predetermined edge of the flexible curtain to expose the operational surface of the target system when the flexible curtain defines the stowed configuration.

A flexible curtain defines a major surface and is configured to repeatedly actuate to move between a deployed configuration and a stowed configuration. Two sensors are configured to detect different condition and are removably attached to two sensor attachment locations. The major surface extends across an operational surface of a target system such that the sensors detect the conditions of the target system when the flexible curtain defines the deployed configuration. The flexible curtain and the sensors converge at a predetermined edge of the flexible curtain to expose the operational surface of the target system when the flexible curtain defines the stowed configuration.

A retractable privacy system for roll-up walls and doors is disclosed. In one embodiment, such a retractable privacy system includes one or more drums rotated by one or more motors to draw in or let out one or more flexible sheets from the drum. Multiple motors and drums may work in synchronization to achieve a desired result. In certain embodiments, various inputs are used to automatically open or close roll-up walls and doors. In other embodiments, the retractable privacy system interfaces with a thermostat or security system to achieve a desired result.

A retractable privacy system for roll-up walls and doors is disclosed. In one embodiment, such a retractable privacy system includes one or more drums rotated by one or more motors to draw in or let out one or more flexible sheets from the drum. Multiple motors and drums may work in synchronization to achieve a desired result. In certain embodiments, various inputs are used to automatically open or close roll-up walls and doors. In other embodiments, the retractable privacy system interfaces with a thermostat or security system to achieve a desired result.