Abstract: A flexible vault structure is provided which includes a plurality of stressed poles which are held in their stressed condition by a member, usually a membrane, strung between the poles. The vault structure can be used as a storage vessel, tent, kite or the like.

Abstract: A collapsible chair is provided which can be easily fabricated from a sheet material such as plywood. The chair consists of two rocker elements, a seat and a back. The four elements can be stored and shipped flat and easily erected into chair form without the use of tools or fastening elements.

Abstract: A clip is provided which is adapted for fastening onto a flexible web such as a sheet of fabric. The clip is particularly adapted for fastening the fabric of a tent to supporting poles or stakes or for fastening webs together.

Abstract: A concave-convex structure is composed of a plurality of pole or rod elements including at least two series of rows of such rods, the rods of each row being substantially parallel to one another. The rows are intersecting, but are uniform in respective orientation. The rods are stabilized at the intersections by fittings which permit relative sliding movement of restricted degree. These fittings are secured to a flexible membrane or body portion.Modification of the fittings to provide multiple layer body portions is achieved through the application of spaced layers of material.

Abstract: A device for generating phosphenes is adapted to be worn on the head of a person and is provided with eye openings to pass light from an external light source to the eyes. A rotating element modulates the light passing through the eye opening by being sized and selectably rotated so as to create high intensity phosphenes.

Abstract: A flexible structure is composed of a plurality of pole or rod elements including at least two series of rows of such rods, the rods of each row being substantially parallel to one another. The rows are intersecting, but are uniform in respective orientation. The rods are stabilized at the intersections by fittings which permit relative sliding movement of restricted degree. These fittings are secured to a flexible membrane or body portion.A swivel relation exists between the fittings and related components.Modification of the fittings to provide multiple layer body portions is achieved through the application of spaced layers of material.

Abstract: A device for forming bubbles in the nature of a toy or amusement device has a weighted base defining a space to contain a quantity of soapy solution. An air introduction conduit extends into the space, and the area is enclosed by a transparent dome.