Abstract: Described are ungelled coating compositions of photochromic material, precursor materials for a first polymer polymerizable by free-radical initiated polymerization and precursor materials for a second or additional polymer(s) different from the first polymer. When the second polymer is selected from polyurethane, poly(urea-urethane) and mixtures thereof, the precursor materials include at least one blocked polyisocyanate. Also described are methods of making photochromic articles using the ungelled coating compositions and the photochromic articles produced using these methods.

Abstract: A frequency detector and frequency-locked loop suitable for use in a clock recovery circuit are disclosed. The detector is linear, and can be used in implementing a loss of lock indicator. Variable delay filtering permits the frequency detector to be less sensitive to data fluctuations, and random or pseudo random addition of jitter helps address low gain in the data stream. A VCO controller cycles through a number of control states and provides varying levels of gain, dither and delay during each of the control states.

Abstract: Describes a photochromic article, e.g., an ophthalmic photochromic plastic article, such as a lens, in which the article includes (1) a rigid substrate, e.g., polymeric substrate, such as a thermoset or thermoplastic substrate, (2) a photochromic polymeric coating appended to at least one surface of the substrate, the photochromic polymeric coating containing a photochromic amount of at least one photochromic material, e.g., spirooxazine, naphthopyran and/or fulgide, and (3) a film comprising a maleimide derivative coherently appended to the photochromic coating. Describes also the aforedescribed photochromic article having an abrasion-resistant coating affixed to the maleimide derivative-containing film, e.g., an abrasion-resistant coating comprising an organo silane; and describes further a photochromic article having an antireflective coating affixed to the abrasion-resistant coating.

Abstract: Describes a photochromic plastic article, e.g., an ophthalmic photochromic article, such as a lens, in which the article includes (1) a rigid substrate, e.g., polymeric substrate, such as a thermoset or thermoplastic substrate, (2) a photochromic polymeric coating appended to at least one surface of the substrate, the photochromic polymeric coating containing a photochromic amount of at least one photochromic material, e.g., spirooxazine, naphthopyran and/or fulgide, and (3) a dendritic polyester acrylate film coherently appended to the photochromic coating. Describes also the aforedescribed photochromic article having an abrasion-resistant coating affixed to the dendritic polyester acrylate film, e.g., an abrasion-resistant coating comprising an organo silane; and a photochromic article having an antireflective coating affixed to the abrasion-resistant coating.

Abstract: Describes a photochromic article, e.g., an ophthalmic photochromic plastic article, such as a lens, in which the article includes (1) a rigid substrate, e.g., a transparent substrate such as a glass or organic polymeric substrate, as for example, a thermoset or thermoplastic substrate, (2) a photochromic polymeric coating appended to at least a portion of at least one surface of the substrate, the photochromic polymeric coating containing a photochromic amount of at least one organic photochromic material, e.g., spirooxazine, naphthopyran, diarylethene and/or fulgide, and (3) a thermally cured transparent thermoset polymeric coating superposed on, e.g., coherently appended to, the photochromic coating, the thermally cured polymeric coating being harder than the photochromic polymeric coating. Describes also the aforedescribed photochromic article having an abrasion-resistant coating affixed to the thermally cured polymer coating, e.g.

Abstract: A pneumatic motion platform is disclosed, adapted to allow an open center to handle shear stress without the need for a central support. In an embodiment, the platform comprises a deck; a base; a plurality of inflatable actuators, each actuator attached to the deck at a predetermined location intermediate the base and the deck, the plurality of inflatable actuators adapted for use as an active motive force with respect to the deck in a plurality of planes; a plurality of compliant stabilizers disposed intermediate the deck and the base, at least one portion of each stabilizer disposed proximate a predetermined one of the plurality of inflatable actuators; a fluid controller in fluid communication with the plurality of inflatable actuators; and a source of fluid in fluid communication with the fluid controller. A ride vehicle may comprise a cabin attached to a deck attached to the motion platform attached to a rotator such as a turntable.

Abstract: Described is a coating composition adapted to enhance the adhesion of a coating or film to a substrate. The coating composition includes at least one coupling agent, partial hydrolysates thereof or mixtures thereof in a concentration greater than 25 weight percent based on the weight of the total composition; and an adhesion enhancing amount of an epoxy-containing material having at least two epoxy groups. The coating composition is free of colloidal particles chosen from silica, alumina or a mixture thereof. Also described is a process for using the coating composition and articles coated with the composition and additional coatings and films which can be photochromic.

Abstract: The lighting up of a fluid or substance within a container by use of an efficient lighting source such as an LED, small lamp, etc. for the purpose or marketing, sales, etc. The invention is to enhance the marketability of a product by making it “stand out” optically from similar products found within the same area of “point of sale”.

Abstract: A catheter for high pressure applications may contain a rigid inner hub, forming a high pressure connection between a fluid path of a catheter shaft and extension tube assembly. The catheter may also contain a soft pliable outer hub with flexible suture wings positioned over the rigid inner hub. When used clinically, the catheter may function as both a standard catheter and a high-pressure catheter.

Abstract: Tunneling systems and methods or making and using such systems for implanting biological devices, especially catheters, are described. The tunneling system of the invention contains flexible connection tunnelers that contain multiple connection features that are of dissimilar lengths. When used for a multiple lumen catheter, the connection features are easier to separate and are easier to connect with the lumens of the catheter that are in different positions relative to the tunneler. Thus, the tunneling system contains a non-destructive connection between the catheter tip and the tunneler, as well as allowing for greater control during placement of the catheter.

Abstract: An output limited electrical stimulator for biological tissue. Stimulus parameters, which can be modulated, are used to specify an electrical stimulus signal. A calculation element calculates the electrical charge which would be generated by an electrical stimulus signal defined by the modulated stimulus parameters. A limit element compares the calculated electrical charge against a predetermined standard and adjusts at least one of the stimulus parameters. An electrical stimulus signal is then generated using the adjusted stimulus parameters assuring that the electrical stimulus signal generated will have an electrical charge of not more than the predetermined standard.

Abstract: An electrical stimulator for biological tissue having mode control. Circuit configuration parameters are stored during a certain circuit operation, such as power up. The circuit configuration parameters are checked during a second circuit configuration, such as, steady state operation and either modulated or unmodulated sets of stimulus parameters utilized to generate an electrical stimulus signal.