Abstract: A ceiling infeed module for a free standing, space dividing, wall panel system which includes, in combination, a ceiling panel for inclusion in a suspended ceiling system, a hollow space dividing wall panel and a tubular member with a removable side cap interconnecting the ceiling panel and the hollow space dividing wall panel by way of a transition. The ceiling infeed module also includes a base shroud for use in concealing the lower portion of the hollow space dividing wall panel and a ceiling escutcheon for use in concealing an aperture cut into the ceiling panel. The tubular member carries electrical and communication service from the plenum area above the suspended ceiling to a free standing, space dividing wall panel system. The tubular member construction enables the electrical and communication service to be installed either before or after the ceiling infeed module is in place.

Abstract: A cabinet is provided with a curved, upwardly-swinging door and interior shelves. The curved shelf door is mounted on a pair of opposed arms which rotate on a horizontal axis. Each arm is provided with two opposed, circularly arcuate slots and a central ellipsoidal slot, each slot engaging a fixed stud at the side of the cabinet. The ellipsoidal slot and its corresponding stud provide a center pivot for each of the arms. The arms are mounted inside the cabinet on opposed interior side walls. Lighting can be provided in a formed recess in the bottom of the cabinet. The cabinet can also be provided with plural internal shelves supported on planar brackets. The cabinet further can be provided with a pair of side-by-side doors and a center wall. Arms are mounted on each side of the center wall and adjacent the interior side walls of the cabinet, for separately mounting the doors.

Abstract: Furniture comprises a strong, aesthetically appealing, woven lattice of interlocking slats. The slats are made of wood laminate having indentations allowing fitting of the slats across one another so as to form the lattice. Advantageously, the furniture may be manufactured of a single type of material, that of the bent wood laminate slats. No other supporting structural material is needed to make the furniture simultaneously possess the advantages of being sturdy, aesthetically appealing, economical to manufacture, and light in structure and appearance. The methods of manufacturing such furniture has also been included.

Abstract: A decorative, lightweight, sound absorbent, fire resistant, space-dividing wall panel for use in open office systems which includes a foamed in-place gypsum core surrounded by a metal frame and a uniform cover material covering the foam sides and substantial portion of the metal frame. The cover material is preferably a polyurethane-backed fabric and may include a relief design of a preselected geometric pattern therein.

Abstract: The offset in digital samples of the voltages and currents in a power transmission system following a fault is reduced by subtracting a linear approximation of the exponential component of the transient from the magnitude of the samples to extract the sinusoidal component. The slope and initial ordinate value of the linear approximation are derived from simple calculations using pairs of digital samples spaced one-half cycle apart. Compensated values of the digital samples for the first half cycle of the transient are produced within one-half cycle plus one additional sampling interval from fault inception.

Abstract: A system for monitoring an alternating current including: a current transducer (10) having first and second optical ports (12,14) and a component for causing optical radiation to travel between the optical ports (12,14) while interacting with the alternating current in a manner to cause the intensity of the optical radiation to vary as a function of variations in the amplitude of the current, with the polarity of the variation being dependent on the direction of travel of optical radiaiton in the transducer (10) between the optical ports (12,14); two optical cables (16,18) each optically coupled to a respective optical port; couplers (20,22) connected to the optical cables (16,18) for causing optical radiation to travel in both directions in the transducer (10) between the optical ports (12,14); and a circuit arrangement (24,26,28,30,38,40,52) for deriving a respective representation of the change in intensity experienced by the optical radiation traveling in each direction through the cables (16,18) and the

Abstract: A light driven remote system and power supply therefor that includes a laser diode that provides pulses of light to a fiber optic cable. The pulses of light are detected by a remote photodiode that is connected in parallel with a step-up transformer. The output of the step-up transformer is filtered to provide power for a remote system. Data transmission from the remote system is synchronized with transmission of light to the photodiode.