Abstract: An optical switch having switch mirror arrays controlled by scanning beams that reduce the amount of electrical connections required and reduce the complexity for constructing large optical switches. Movement of the switch mirror arrays is controlled by one or more scanning beams. The optical switch includes one or more arrays of optical switch inputs and outputs and one or more arrays of movable mirrors to direct light beams from the optical switch inputs to the optical switch outputs. The optical switch also includes one or more control elements to control the movable mirrors based on scanning beams directed to the one or more control elements.

Abstract: An optical switching apparatus is provided. Generally, a plurality of optical input switches is provided. A plurality of optical output switches is provided. A plurality of central optical switches connected between the plurality of input switches and plurality of output switches is provided. A plurality of test light sources, where each test light source is connected to an optical input switch, is provided. A first plurality of optical detectors connected to the optical output switches is provided.

Abstract: Disclosed is a seat supplement for saddle seats such as those on motorcycles and bicycles. A web or panel of flexible, durable and wear-resistant material having a length longer than width is used to secure two cushion elements within tubular sleeves or pockets located laterally at each end of the length-wise dimension of the web so that the length direction of the web corresponds to the width dimension of the seat upon which it is placed. The cushion elements are rounded or curved, but each has one relatively flat side parallel with the axis of the pad which fits against or butts against the side of the saddle seat, thereby increasing the effective sitting area of a conventional saddle seat.

Abstract: A low vision lens for attachment to the front surface of an ophthalmic lens by an adhesive ring coupling carried by the lens, a method for making such a lens assembly, and a method for attaching such lens to the front surface of ophthalmic lens is described.

Abstract: Disclosed is a compound having the formula: ##STR1## wherein m is two or three;n is an integer from one to four;R is selected from the group consisting of:alkyl having one to six carbon atoms,hydrogen,HOCH.sub.2 --andR"O(CH.sub.2).sub.a --, wherein a is an integer from one to six andR" is alkyl having 1 to 6 carbon atoms;each R' in each CR'.sub.2 unit of the (CR'.sub.2).sub.m group and of the (CR'.sub.2).sub.n group is independently selected from the group consisting of --H and alkyl having one to four carbon atoms;X is selected from the group consisting of --O-- and ##STR2## and Y is a free radical polymerizable unsaturated moiety.Also disclosed are a process for preparing the compound, latexes containing the compound and coating compositions containing the compound.

Abstract: A motor control apparatus is disclosed for controlling and reducing power consumption of a 3-phase induction motor, wherein the motor control apparatus includes control means for controlling current flow in each phase line and voltage sensing means across each control means for sensing back emf when the control means is electrically open in order to measure slip of the motor. A reference voltage signal representative of line voltage is subtracted from the summed back emf measurements in order to provide a voltage control signal which is a function of motor slip. Current measurement means in the form of a current transformer associated with one supply line is provided for measuring current drawn by the motor. The voltage control signal and the current signal are processed to develop a phase control signal for controlling a phase control means and a driver means associated with each control means. A starting control means for providing a soft start for the induction motor is also disclosed.

Abstract: A cationic thermosetting latex, coating compositions prepared therefrom, and the process for providing a protective coating are disclosed. The thermosetting latex comprises a blocked isocyanate curing agent and a cationic acrylic latex which is prepared by copolymerizing ethylenically unsaturated monomers, at least one of which contains an active hydrogen group, in an acidic medium in the presence of a cationic surfactant, of which the gegen-ion is derived from certain phosphorous-containing acids. Such latices, when formulated into coating compositions, provide corrosion-resistant coatings.

Abstract: An elastomeric blend having excellent resistance to oil is made from a block copolymer rubber and a graft copolymer made by copolymerizing a macromolecular monomer with one or more alkyl acrylates. The blends are especially useful in shoe sole compositions to impart oil resistance thereto.