A modular recreational and/or survival canvases are disclosed. Each canvas may be used alone or in combination with other canvases to provide shelter. Each canvas includes a base substrate including a plurality of fastener, a plurality of sleeves, and an outer fringe. In a refinement, the canvas may be of a shape such as a hexagon with alternating fasteners along its perimeter such that it may cooperate with one or more other modular canvases to form larger shelters. In one or more embodiments, the canvases may be combined with a construction block and one or more stakes.

An anchoring device and method for collapsible sun shelter so that the sun shelter can be used on a variety of terrains, the reusable anchoring device consists of a large corkscrew or other anchoring type post, that can be turned or driven into the ground, the anchoring device top being configured so that it can securely hold a rope, the anchoring device holds a mostly flat geometric shape greater than 36 square inches, the mostly geometric shape having a sewn compartment, or casing, to enclose a rope around the outside edge, with one corner of the mostly flat geometric shape casing open so that the rope can attach to a pole holding up the sun shape, and the opposite corner's reinforced casing open to allow the rope to be pulled out to attach to an anchoring post with an anchoring post stake, a separate anchoring device may be used for each post when setting up the sunshade.

An anchoring device and method for collapsible sun shelter so that the sun shelter can be used on a variety of terrains, the reusable anchoring device consists of a large corkscrew or other anchoring type post, that can be turned or driven into the ground, the anchoring device top being configured so that it can securely hold a rope, the anchoring device holds a mostly flat geometric shape greater than 36 square inches, the mostly geometric shape having a sewn compartment, or casing, to enclose a rope around the outside edge, with one corner of the mostly flat geometric shape casing open so that the rope can attach to a pole holding up the sun shape, and the opposite corner's reinforced casing open to allow the rope to be pulled out to attach to an anchoring post with an anchoring post stake, a separate anchoring device may be used for each post when setting up the sunshade.

A night sky viewing tent structure having specific features for enhanced night sky viewing is disclosed. In one embodiment, the night sky viewing tent structure comprises roof cut-outs to allow telescope lenses to extend through the roof for star viewing while still protecting users. In other embodiments, the tent structure roof cover is at least partially transparent with one or more sections providing magnification for improved night sky viewing. In another embodiment, the tent structure covering is at least partially photochromic, such that it is clear in low light conditions, and substantially tinted in full light or day light conditions. In other embodiments, the tent structure cover is manufactured with one or more coatings to absorb ultraviolet rays of less than 400 nanometers. In various embodiments, the night sky viewing tent structure is formed using at least one flexible rib element and a cover element.

A transportable shelter includes a frame, an inner liner, and an outer liner. A plurality of interconnecting members of the frame are connected to create a fixed structural element, at least one end structural element, and a plurality of purlin portions. The purlin portions attach the fixed structural element to a first end structural element. The fixed structural element has a first inner track and a first outer track, and the first end structural element has a second inner track and a second outer track. The inner liner attaches to the first and second inner tracks, and the outer panel attaches to the first and second outer tracks. A dead-air space exists between the inner liner and the outer panel when the frame is assembled and the inner liner and the outer panel are connected to both the fixed structural element and the first end structural element.

A transportable shelter includes a frame, an inner liner, and an outer liner. A plurality of interconnecting members of the frame are connected to create a fixed structural element, at least one end structural element, and a plurality of purlin portions. The purlin portions attach the fixed structural element to a first end structural element. The fixed structural element has a first inner track and a first outer track, and the first end structural element has a second inner track and a second outer track. The inner liner attaches to the first and second inner tracks, and the outer panel attaches to the first and second outer tracks. A dead-air space exists between the inner liner and the outer panel when the frame is assembled and the inner liner and the outer panel are connected to both the fixed structural element and the first end structural element.

A stake consists of two planar panels joined on a longitudinal axis and angularly disposed with respect to one another. Lower portions of the panels converge to a tip on the axis, and an axial tang is formed at the top of the stake. An inwardly directed flange is formed near the top of each panel, the flanges being disposed substantially in a common plane, generally perpendicular to the panels. The flanges and the tang facilitate driving of the stake into a substrate by use of a power hammer, and the driven stake resists both upward and lateral displacement. It is especially adapted for the securement of edging for restraining paving and landscaping materials.

A stake consists of two planar panels joined on a longitudinal axis and angularly disposed with respect to one another. Lower portions of the panels converge to a tip on the axis, and an axial tang is formed at the top of the stake. An inwardly directed flange is formed near the top of each panel, the flanges being disposed substantially in a common plane, generally perpendicular to the panels. The flanges and the tang facilitate driving of the stake into a substrate by use of a power hammer, and the driven stake resists both upward and lateral displacement. It is especially adapted for the securement of edging for restraining paving and landscaping materials.

A securing system for a covering device comprising a polymeric shell including a receptacle portion and an optional cover portion, the receptacle portion being formed of a base portion and one or more walls and at least one opening formed within the shell, wherein the opening is adapted to receive a material capable of flowing and optionally curing to form a filled receptacle portion, the filled receptacle portion forming a solid weight for use in securing a covering the covering device.

A play tent apparatus includes a base assembly that includes a plurality of anchor members each having a bottom portion configured to rest upon a ground surface and a top portion having an upwardly hemispherical configuration that defines a plurality of receiver openings spaced apart from one another. The play tent apparatus includes a plurality of struts each having opposed ends and each extending between a selected pair of the plurality of bottom portions of the plurality of anchor members. Further, the play tent apparatus includes a support assembly that includes a plurality of ribs each having a flexible construction and a pair of ends each selectively coupled to respective receiver openings of respective top portions of respective anchor members. Each of the ribs includes a semi-flexible configuration so as to form an arch between the respective anchor members and so as to apply tension to proximate anchor members, respectively.