A sleeping mattress consisting of multiple layers of foam material having different densities and structural characteristics with sealed chamber formed therein for receiving a flexible but inelastic liquid filled container. The sealed chamber is located in the torso supporting area of the mattress only. The foam layers supporting and enclosing the sealed chamber are bonded to one another so that the sides of the chamber provide sufficient lateral support to the liquid filled container to provide...

An improved waterbed safety liner includes a base sheet which underlays the watermattress, and sidewalls extending upwardly from the edges of the base sheet to surround the watermattress and contain any liquid leaking therefrom. In one embodiment, an inflatable air chamber is integrally formed with the upper extent of the sidewalls to overlay a portion of the watermattress and provide buoyant edge support thereon. In another embodiment, a chamber formed integrally with the sidewalls of the safet...

An earth retaining wall formed by stacked, alternately staggered rows of spaced, nesting, chevron-shaped concrete blocks. Adjacent blocks in some rows are coupled together by connecting tubes extending into holes through the blocks, and elongated anchoring devices are connected to the tubes and extend horizontally into the earth. Alternatively, the anchoring devices may be concrete extensions integrally moulded with the blocks.

A waterbed mattress construction includes baffle means for dampening water wave action. The dampening means comprises one or more flexible plastic strips welded to the interior bottom surface of the mattress and flotation means welded to the other end of the strips. The flexible strips may be in the form of an open box with approximately the same configuration as the waterbed mattress. The flotation means is a single piece of foam or other material which causes the plastic strips to float to the...

In a pediatric water mattress, of the type for use for therapeutic purposes for enhancing the health attributes of an infant particularly after premature birth, the mattress incorporates a pair of inner liners that are sealed together around their perimeter to form a water holding chamber, a pair of outer liners, said outer liners being larger than the inner liners and forming a minor capacity air chamber in which the inner water chamber is located, a valve connecting through the lower outer and...

A refrigerator structural support is provided by permitting polyurethane foam reactant material to impregnate a body of fibrous material and to subsequently harden. The result is a third material having desirable stiffening and support characteristics. Various means are disclosed for controlling and advantageously using the result of the impregnation of fibrous material by foam reactant material.

A sleeping bag comprising a body portion, leg portions, and two sleeve members, first attachment structure fixed to the body portion, and second attachment structure fixed to a first of the sleeve members, the first and second attachment structures being releasably connectable to permit connection of the first sleeve member to the body portion, the first sleeve member having an opening in a free end thereof adapted to receive a free end of a second of the sleeve members, third attachment structu...

A concrete pile fitted with a special slightly tapered concrete tip of larger area. The tip has a central open socket for receiving concrete poured in after the pile is in place.

Installation of panels of interlocking blocks for erosion control purposes uses apparatus for hoisting the panels into position comprising parallel suspension cables passing through the panel and a laterally removable support bar releasably locked to the cables which bar sustains the weight of the panel and transfers it to the cables. Upon the release of the support bar, the suspension cables may be drawn out of the panel while drawing permanent reinforcing wires or cables into position behind t...

In combination with a tool box, a tool box accessory cabinet is secured to a side of the tool box. The accessory cabinet has a base which has therein a plurality of spaced-apart openings. Each opening is to accommodate an elongated tool which has an enlarged head. The enlarged head of the tool is to be located within the confines of the cabinet. The cabinet is to be lockable when closed and when open the top of the cabinet is to cooperate with the base to form an enlarged object supporting tray.