Abstract: A spherical vacuum desiccator consists of two substantially identical shells which are connected together at an engagement region. A receiving segment and connecting segment are positioned in a spaced-apart relationship within the engaging region of each hemispherical shell. In the assembled condition of the invention, each hemispherical shell is disposed in an inverted position with respect to the other shell and the connecting segment of the two hemispherical shells engage at the receiving segment.

Abstract: An enclosed magnetic stirring bar arrangement includes a housing formed by front and rear walls interconnected by a peripheral wall, so as to define a substantially hollow interior chamber within said housing. An operational opening is formed within the front wall and at least one discharging aperture is provided in the peripheral wall. A magnetic stirring member is movably positioned within the substantially hollow interior chamber, whereby rotational motion of the magnetic stirring member facilitates entering a liquid into the substantially hollow interior chamber and discharging the liquid from the interior chamber through the at least one discharging aperture.

Abstract: A hosiery donning aid apparatus comprises a body formed as a channel having interior and exterior surfaces and two outer edges extending along a longitudinal axis of the body. A frictional arrangement is provided consisting of a multiplicity of spaced from each other frictional ribs extending outwardly from the exterior surface in such a manner that a substantial gap separates each end of each frictional rib from the respective outer edges.

Abstract: A non-metallic adapter provided to facilitate the rotation of a doorknob is formed with a cap adapted to receive a doorknob. A lever extends outwardly from the cap. The lever is formed with an internal cavity provided with a plurality of reinforcing members separating the cavity into a plurality of substantially isolated reinforced regions.

Abstract: A housing assembly includes first and second sides and first and second panels spaced apart from each other by an interior of the housing and traversing the first and second sides. A first porous desiccant retention plate and a second porous desiccant retention plate are spaced from each other are secured within the housing so as to define a desiccant chamber therebetween for maintaining the desiccant medium. An opening is formed within one of said panels in a location corresponding to the location of the desiccant chamber, facilitating replacement of the desiccant medium within the desiccant chamber.

Abstract: A non-metallic laboratory jack comprises two oppositely disposed reinforcing elements having I-beam cross-sectional configuration disposed in the central elevational region of the jack; a base position below the reinforcing elements and a load-bearing platform positioned above the reinforcing elements and a plurality of pairs of cross links. A rotatable threaded shaft associated with the reinforcing elements.

Abstract: A non-metallic laboratory jack comprises two oppositely disposed reinforcing elements having I-beam cross-sectional configuration disposed in the central elevational region of the jack; a base position below the reinforcing elements and a load-bearing platform positioned above the reinforcing elements and a plurality of pairs of cross links. A rotatable threaded shaft associated with the reinforcing elements.

Abstract: A pipette control arrangement consists of a housing assembly adapted for operatively housing a pump assembly and for operatively connecting a pipette to the pump assembly via a flexible air tube. The pump assembly is adapted to independently accommodate a plurality of volume specific removable cylinder-plunger systems. The pipette control arrangement may further include a quick release trigger operated mechanism for rapidly and or in large volumes dispensing liquid from an attached pipette.

Abstract: A hosiery donning aid consists of a base, at least one hosiery support and at least one handle support. The hosiery support has a support element carried by the base. The handle support has a handle outwardly extending from the base in adjacent relationship to the hosiery support.

Abstract: A hosiery donning aid apparatus comprises a body formed as a channel having interior and exterior surfaces and two outer edges extending along a longitudinal axis of the body. A frictional arrangement is provided consisting of a multiplicity of spaced from each other frictional ribs extending outwardly from the exterior surface in such a manner that a substantial gap separates each end of each frictional rib from the respective outer edges.

Abstract: A multiple roll tape dispenser consists of a spool unit and a spool housing assembly. The spool unit consists of a first end cap connected to a second end cap by at least one inner tape roll supporting cross member for rotatably supporting a first tape roll having a first inner diameter and a plurality of outer tape roll supporting cross members for rotatably supporting a second tape roll having a second inner diameter being greater than the inner diameter of the first tape roll.

Abstract: A modular laboratory cabinet assembly consists of a pair of identical housing end units arranged in an inverted spaced apart relations to each other, and at least a pair of identical base housing modules arranged in an inverted side by side relations to each other and interposed between the housing end units.

Abstract: A modular laboratory cabinet assembly includes a pair of end units in inverted relation to one another, and at least one intermediate module interposed therebetween. A door is pivotably attached to the end units. Each end unit having a plurality of elongated supporting members and the intermediate module is formed with a plurality of columns. In the assembled condition, the supporting members and columns are aligned to form a continuous air-tight passage extending through the entire assembly.

Abstract: A housing assembly includes first and second sides and first and second panels spaced apart from each other by an interior of the housing and traversing the first and second sides. A first porous desiccant retention plate and a second porous desiccant retention plate are spaced from each other are secured within the housing so as to define a desiccant chamber therebetween for maintaining the desiccant medium. An opening is formed within one of said panels in a location corresponding to the location of the desiccant chamber, facilitating replacement of the desiccant medium within the desiccant chamber.

Abstract: A pipette control arrangement consists of a housing assembly adapted for operatively housing a pump assembly and for operatively connecting a pipette to the pump assembly via a flexible air tube. The pump assembly is adapted to independently accommodate a plurality of volume specific removable cylinder-plunger systems. The pipette control arrangement may further include a quick release trigger operated mechanism for rapidly and or in large volumes dispensing liquid from an attached pipette.