A dome structure which is adapted, in a preferred embodiment, to serve as a listening booth for auditioning stereo components. The structure includes at least one curved dome section having side walls which taper from a broad floor-mounted base to a narrow tip which arches off the floor a distance of, for example, eight feet. In the preferred embodiment, the dome section, or a plurality of interconnected sections, subtends an arc of approximately 60.degree., the tip portions meeting in a corner ...

A hinge structure is disclosed for hingedly joining a cover or lid member with a base or housing member of an overall unit, such as a control lens disinfector, or the like. The base or container member carries, in opposing side wall portions, a pair of coaxial, axially spaced cylindrical bores or apertures, while the cover member carries, in opposing side wall portions, a pair of coaxial, axially spaced and oppositely outwardly extending rod-like pins or pintle members. The axial spacing of thes...

A first pipe or shaft-like structure having a first end is shown operatively connected to a second pipe or shaft-like structure having a second end in a manner whereby the first and second ends spaced from each other and in fluid communication with each other; a coupling apparatus or joint structure operatively interconnects the first and second pipes; the joint structure employs liquid filled resiliently deflectable first and second force transmitting members as inner connections respectively f...

An absorbent structure is provided comprising peat moss in combination with mechanical wood pulp, said wood pulp having a Canadian Standard Freeness of from about 30-600 and present in the ratios, by weight of wood pulp to peat moss, of greater than about 0.35. The absorbent structure, which may also contain other absorbent materials such as long-fibered chemical wood pulp, rayon or the like, exhibits improved absorbent properties in both liquid-holding capacity and liquid-retention capacity and...

A reclosable blister card package comprises a plastic blister having a flanged portion and a raised product holding portion. A paperboard card is releasably affixed to the flanged portion, and a portion of the card is folded over to present a folded edge extending over and engaging the flanged portion of the blister. A pair of parallel creases are provided in the paperboard card, one of which creases is disposed in substantial registry with the folded edge. Construction and arrangement is such t...

A window structure adapted for easy placement in and removal from a conventional window frame. The window structure includes a generally planar, rectangular window pane constructed of glass, acrylic resin, or the like. Also included are four frame members, each having a slot extending longitudinally therein to receive the edge of the window pane. Two of the frame members are dimensioned for placement on the top and bottom edge of the window pane and the other two frame members are dimensioned fo...

A ladder structure in which a plurality of extruded aluminum steps are secured to spaced, vertically disposed side rails, the rails seating in slots in the ends of the step. The slots are closed by end caps, and a screw extends through the end cap and rail into a screw receiving recess in the step. The step contains two laterally disposed screw receiving recesses, and screws extend through the cap into those laterally disposed recesses and, along with the first screw, secure the caps firmly on t...

A sealing structure including a substantially flat sealing surface, a gasket and a groove formed in a flange facing the sealing surface for the gasket and for applying a sealing force to the gasket in a direction substantially perpendicular to the sealing surface. A groove is formed such that the groove has inclined surfaces with the width of the groove increasing towards the sealing surface and such that the inclined surfaces apply a pressing force to the gasket.

There is disclosed a valve comprised of a valve body defining a cavity with inlet and outlet port means opening to and leading from said valve cavity. A plug member is rotatably disposed in said valve cavity and spaced from the bottom wall thereof to define a valve chamber, with the outlet port means leading from said chamber. The plug member includes an end segment disposed in said valve cavity and provided with a pair of concave, axial elongate surface portions opening to the end face of said ...

A building unit of generally diamond shape which includes flange members along its edges, the flange members adapted to interlock with those of an adjacent unit to construct a building structure for example a dome structure. The units are simple to manufacture and assemble to provide inexpensive domes and other structures.