Abstract: A bench having a back section and a seating section includes a plurality of vertically extending back members attached at opposed ends to an upper horizontal back support member and a lower horizontal longitudinally extending lower back support member wherein one of the vertically extending back members is removable received by said upper and said lower longitudinally extending back support members. The removable vertically extending back member is generally wider than the attached vertically extending support members and includes printing indicia thereon.

Abstract: A tamper-proof bottle for assuring a legal "chain of custody" of its contents. The bottle has adjacent its open end a circumferential series of abutment bodies, each of which co-operates with one of a series of abutment bodies carried on the inner wall of the cap's rim wall, forming a series of retainer sets. When rotated to its closed position, the cap and bottle cannot be separated without breakage; and in moving into that position, the resilient nature of the sets is sufficient to let the set bodies pass one another but after such passing to cause the deformable body portion to move so that at least a part of one will be within the axial extent of the abutment wall of the mating body portion, thus blocking against cap-removal except with breakage. The cap is also provided with one or more outlet ferrules, they being closed-ended cylinders; and a plug is provided for resealing the bottle once the closed end is cut off, the plug being self-locking once inserted.

Abstract: A panel module having special support means by which adjacent and coplanar panels are effectively interlocked so that they are not relatively translated even by significant loading intermediately of their locations of external support. Thus a very lightweight panel nature may be provided, for ease of installation and removal, thus particularly beneficial for decking sections of an installation for such uses as poultry raising.A lip-like wall is provided to extend horizontally from each of the upper and lower portions of an edge of one panel, and its adjacent panel is provided with a vertical wall which in installation nests snugly between the lip-like walls; and extra certainty and positiveness of the interlocking effect is provided by a hook-like formation of one of the lip-like walls.

Abstract: A microsample device for blood sample collection comprises a hypodermic needle to which is attached a mixing chamber having an enlarged bore relative to the bore of its inlet and outlet conduits, and a supply of a soluble solid anticoagulant contained within the chamber. The anticoagulant is automatically mixed with the blood sample in the mixing chamber, eliminating the need for mixing balls or other mechanical mixing elements. The exit conduit from the mixing chamber leads to a capillary tube of sufficient length to accommodate a desired blood sample. The free end of the capillary tube is provided with a hydrophobic filter which permits air to escape from the interior of the collecting device as the blood sample enters but which blocks the further flow of blood as soon as the device is filled.

Abstract: A household service tray device easily attached and removed from the arm of an article of furniture, by a clamping body securely held on and by the furniture arm. In one form, it provides a rotatable tray which, supported by the clamping body, swivels to provide an over-the-seat position and other positions, including one in which the tray automatically drops to a retracted and out-of-the-way position when not needed for use. In another form, an easily attachable table body provides an over-the-seat surface.