Abstract: A regulator is provided for maintaining a preset air velocity through the work chamber of a fume hood. The regulator compares a measured air velocity at the inlet into the chamber with a preset air velocity and adjusts air velocity in response to differences in measured and preset values. Air velocity is measured with a high sensitivity pitot with an exterior end to be positioned outside the fume hood, and an interior end to be positioned inside the fume hood. The pitot includes spaced parallel plates with front and rear ends, an exterior air pressure sensor positioned at the front end of the plates, and an interior air pressure sensor positioned at the rear end of the plates. The interior air pressure sensor includes openings substantially equidistant between the plates that are toward the rear of the pitot when the pitot is mounted on a fume hood. The exterior end of the pitot preferably curves below horizontal to minimize the effect of transient air currents.

Abstract: A method for making a cut and puncture resistant laminated fabric under a laminating pressure including the steps of rolling a thermoplastic film and a fabric constructed with a substantial majority of a high performance fiber around a small diameter core to form a wound bundle. The wound bundle is heated at a temperature of between about 250 and about 285 degrees Fahrenheit for a sufficient length of time to laminate the thermoplastic film to the fabric.

Abstract: A simulated Christmas tree light display having a circular ring and a plurality of elongated legs attached to the ring. Each of the elongated legs has a first end connected to the ring and a second end positioned opposite the ring. The first end has an aperture for threading the ring through the leg and a flattened end section. The apertures are sized to allow the legs to rotate about the ring to form a variety of angled designs. Lights and other holiday decorations may be wrapped about the legs to further provide the appearance of a lighted Christmas tree.

Abstract: Broadcast towers used for the co-location of wireless antennas and having a plurality of antenna wires spaced from a support are modified with an insulation system including flexible, non-conductive insulation sleeves to cover the lower section of the antenna wires. These sleeves include an inner tubular member having an inner diameter greater than the outer diameter of the antenna wire and an outer tubular member having an inner diameter greater than the outer diameter of the inner tubular member. An improved cabinet for isolating cables is also described. The cabinet includes a conductive housing having a top wall, a bottom wall, and parallel first and second side walls joining said top and bottom walls, and removable front and back plates. A non-conductive cable support frame is slidable within said housing. The side walls have corresponding attachment means, whereby a side wall of one cabinet can be aligned with and attached to a side wall of another cabinet of the same construction.

Abstract: A hutch for a desk. The hutch has a top defining a rear edge and at least one side extending forwardly from the rear edge. At least one rotatable support extends downwardly from the top beneath the at least one side that extends forwardly from the rear edge.

Abstract: A bed support mechanism. The mechanism includes at least two substantially identical L-shaped support members each including a top section and a leg section, the top sections being adjacently positioned to one another and each of the leg sections extending downward at opposite ends of the adjacently positioned L-shaped support members to support the bed. In the preferred embodiment, an adjustable foot is connected to the distal end of each of the leg sections to provide adjustment for beds of different heights. Also, in the preferred embodiment, the L-shaped support members are connected together by bolts and wing nuts which extend through a plurality of apertures spaced along the length of the top section wherein the apertures align at pre-selected positions along the length of the L-shaped support members for inserting the fasteners.

Abstract: A filter for a filter vessel which converts the filter vessel to use disposable filters for removing hazardous particulate matter from an aqueous flow. The filter includes a rigid support housing having an input passage for the aqueous flow, an exit passage for the aqueous flow, an internal sealing surface and a locking seal located adjacent to the input passage to securingly engage the filter vessel for the aqueous flow. The invention also includes a sleeveless disposable filter cartridge. The cartridge includes a flexible filtering medium having first and second ends. A terminal seal is affixed to the first end of the filtering medium for sealing engagement with the filter vessel and a wall seal on the second end of the filtering medium for engagement with the internal sealing surface of the support housing.