Abstract: A window assembly incorporating a composite seal is provided. The composite seal has a first sealing member and a second member stiffer than the first sealing member.

Abstract: A window assembly incorporating a window frame and seal and a method of forming the same are provided. The window assembly includes a window transparency first ply coupled to a first window structure. A window transparency second ply is coupled to the first ply and is spaced apart from the first structure defining a gap there between. A portion of the first structure, or a second window structure coupled to the first structure, extends over the second ply. A seal is placed, fitted or formed within the gap and between the second ply and the portion of the first structure or the second structure extending over the second ply.

Abstract: A swaging device is provided, including a die holder assembly including a head and a die block adapted to hold a first die and a second die respectively, and an actuator assembly, including a housing and a piston connected to the die block. In addition, a separate, removable strut cap is included, which is engaged to both the housing and the head. The strut cap is structured to secure the head during the compression of a workpiece.

Abstract: A laminated face ply for aircraft windshields provides improvement in window performance. The laminated face ply incorporates an outer glass face ply and an inner glass ply of thin, chemically strengthened glass having substantially identical thicknesses of about 0.026". A first urethane interlayer bonds the outer face ply to the inner ply. The thickness of the first urethane interlayer is sufficient to accommodate thermal stresses arising between the outer ply and inner ply, but sufficiently thin to limit deflection of the outer ply for impact resistance. A second urethane interlayer is employed to bond the inner glass ply to a structural ply of the windshield. The second interlayer has a thickness substantially identical to the first urethane interlayer to accommodate thermal stresses arising between the inner glass ply and the structural ply of the windshield while similarly limiting deflection of the inner ply with respect to the structural ply of the windshield for improved impact resistance.

Abstract: A swaging unit which is portable and which has a locking fitting to co-operate with separable components to the secure a sleeve in an engagement with the swaging unit. In this manner, a tube can be swaged onto the sleeve. The locking fitting has internal threads which engage with external threads on the separable components to facilitate engagement. The swaging unit can be finely adjusted by having fine threads between a locknut and a cage for housing the mandrel.

Abstract: A laminated environmental protective layer for acrylic aircraft windows provides significant improvement in the performance of original production windows and in repair of damaged aircraft windows. A thin chemical and erosion resistant outer protective layer of environment resistant transparent material is laminated to the exterior acrylic surface of the aircraft window using a thin urethane interlayer. Use of chemically strengthened glass for the outer protective layer and hot processing of the laminate increases impact resistance. Addition of an inner balancing layer minimizes bowing of the processed window and enhances stiffness of the window and compression of the outer layer for additional impact resistance.

Abstract: Refurbishment of an all glass laminate aircraft window is accomplished by removal of the glass face ply and machining the polymeric laminating layer to remove an outer portion while leaving an inner portion adhered to the structural glass ply. The machined polymeric surface is treated to remove machine marks while maintaining a textured surface. A new glass face ply and polymeric laminating film sufficient to fill the machined portion of the polymeric layer are relaminated to the treated surface to provide a new bonded face ply.

Abstract: A tube union for coupling the ends of a pair of tubes which are butted together includes a sleeve and two swaging collars about the sleeve without other components. Grooves and lands in the sleeve mate with a tube which is deformed into the grooves as the sleeve is urged inwardly under compression. The rings are urged centrally towards the central position of the sleeve by a tool constituted by two housing members which each have several components. Torsional wrenching of the housing members screws the housing members together, causing the collars to deform the sleeve. Thereafter pins are removed from the one housing members and the wrench from the other. This permits separation of the housing members from the swaging collars. The tool can effect connection or assembly of different elements.

Abstract: A tube union for coupling the ends of a pair of tubes which are butted together includes a sleeve and two swaging collars about the sleeve without other components. Grooves and lands in the sleeve mate with a tube which is deformed into the grooves as the sleeve is urged inwardly under compression. The rings are urged centrally towards the central position of the sleeve by a tool constituted by two housing members which each have several components. Torsional wrenching of the housing members screws the housing members together, causing the collars to deform the sleeve. Thereafter pins are removed from the one housing members and the wrench from the other. This permits separation of the housing members from the swaging collars. The tool can effect connection or assembly of different elements.

Abstract: A tube union for coupling the ends of a pair of tubes which are butted together includes a sleeve and two swaging collars about the sleeve without other components. Grooves and lands in the sleeve mate with a tube which is deformed into the grooves as the sleeve is urged inwardly under compression. The rings are urged centrally towards the central position of the sleeve by a tool constituted by two housing members which each have several components. Torsional wrenching of the housing members screws the housing members together, causing the collars to deform the sleeve. Thereafter pins are removed from the one housing members and the wrench from the other. This permits separation of the housing members from the swaging collars. The tool can effect connection or assembly of different elements.

Abstract: A machine, which is portable, and method for roller swaging hydraulic fitting sleeves onto metallic tubing comprises a tapered roller mandrel expander under either or both torque control of swaging or diameter control of swaging. The machine provides an automatic swaging cycle with an optimum overall time cycle for swaging performance. A motor drive is movably mounted relative to the mandrel expander assembly. The motor drive is manually moved longitudinally to activate the mandrel. Portability and hand held use can be effected by removing the power unit from the frame.

Abstract: Ultraviolet light curing of a composition on a unit such as an aircraft canopy includes an ultraviolet light generator mounted for movement in at least three directions of motion relative to the unit. The generator is selectively movable in relation to the unit according to prerequisite procedure. A regulated environment cell is provided for the curing. The ultraviolet generator follows predetermined sequences and can be located partly within the canopy during curing. The canopy, after being mounted on a mobile fixture in the horizontal position is pivotally turned to be vertically located strategically relative to the ultraviolet light source during curing.

Abstract: A laminated window is prepared by applying an ultraviolet curable acrylate resin to a transparent rigid outer layer. The acrylate is carried in a solvent that swells a plastic surface of the outer layer to promote adhesion. After evaporating substantially all of the solvent the base coat is exposed to ultraviolet radiation to polymerize the acrylate. An electrically conductive metal layer is deposited on a portion of the base coat. When this is completed the window may be laminated with a conventional interlayer and rigid transparent inner layer.

Abstract: A method is provided for producing a heated laminated windshield construction. Initially, a transparent material to be provided as the outer layer of such a laminated windshield is selected. A transparent basecoat is applied on the inner major surface of the outer layer. A quantity of electroconductive metal is deposited onto the basecoated surface to form a metal strike coat. A portion of the metal strike coat is masked so that unmasked portions of the strike coat comprise the pattern of the electroconductive metal film runs to be formed on the inner major surface. An electroconductive metal is electroplated onto the unmasked portions of the strike coat. Portions of the strike coat onto which no metal was electroplated are removed to thereby leave on the inner major surface of the layer a plurality of spaced apart electroconductive metal film runs comprising electroplated metal and the portion of the metal strike coat beneath the electroplated metal.

Abstract: A method is provided for producing a heated laminated windshield construction. Initially, a transparent material to be provided as the outer layer of such a laminated windshield is selected. A transparent basecoat is applied on the inner major surface of the outer layer. A quantity of electroconductive metal is deposited onto the basecoated surface to form a metal strike coat. A portion of the metal strike coat is masked so that unmasked portions of the strike coat comprise the pattern of the electroconductive metal film runs to be formed on the inner major surface. An electroconductive metal is electroplated onto the unmasked portions of the strike coat. Portions of the strike coat onto which no metal was electroplated are removed to thereby leave on the inner major surface of the layer a plurality of spaced apart electroconductive metal film runs comprising electroplated metal and the portion of the metal strike coat beneath the electroplated metal.

Abstract: A coupling for swaged attachment to thin wall tubing. The coupling is a cylindrical body with a longitudinal axis and an inner peripheral wall. At least one groove is located in the inner peripheral wall. In one embodiment, the groove is substantially rectangular in cross section. The rectangular groove has a base and two side walls. The side walls meet the base to form corners. The corners have a radius of curvature of at least the depth of the groove. Alternatively, the cross section of the groove can be ramped in shape. The ramped shape groove has a base and two side walls. One of the two side walls meets the base at about 90.degree., and the second side wall meets the base at an angle substantially greater than 90.degree.. In a third embodiment of the invention, the groove is ramped with one side wall meeting the inner peripheral wall of the coupling sleeve at about 90.degree.

Abstract: A meter for sheet conductance measurements does not touch the conductive surface of a sample. A probe having a resonant tank coil is positioned against a parallel supporting surface of the sample, which may be flat or curved and of unrestricted area. An oscillator incorporating the tank coil is controlled to stabilize oscillator amplitude in response to eddy current loading by the sample. An electrostatic shield in a finger configuration prevents capacitive coupling between the tank coil and the sample without hindering magnetic coupling. A readout of sheet conductance is driven by the oscillator control. Direct current can be coupled to the tank coil for temperature control preventing undesired resistance changes in the tank coil. The oscillator can be controlled by an optically coupled variable gain element. Measurements can be made with the tank coil up to at least 0.75 inch from the conductive surface of the sample.

Abstract: Apparatus and method for efficiently and economically reducing and removing static charge from a surface of a dielectric material. One device is a window assembly comprising a window having an outer surface and a perimeter. The outer surface comprises a dielectric material. A frame is around the window and houses the perimeter. The frame has an outer surface which terminates along the outer surface of the window at a border. At least one corona point is attached to the window assembly proximate the border. Means for grounding the corona point is in electrical communication with the corona point. The number of corona points required to dissipate the static charge is minimized by a method that locates arc attracting regions and installs the corona points proximate these regions. Also provided are a corona point assembly and a kit comprising (1) the corona point assembly and (2) means for attaching the corona point assembly to the frame.

Abstract: A method is provided for producing a heated laminated windshield construction. Initially, a transparent material to be provided as the outer layer of such a laminated windshield is selected. A transparent basecoat is applied on the inner major surfce of the outer layer. A quantity of electroconductive metal is deposited onto the basecoated surface to form a metal strike coat. A portion of the metal strike coat is masked so that unmasked portions of the strike coat comprise the pattern of the electroconductive metal film runs to be formed on the inner major surface. An electroconductive metal is electroplated onto the unmasked portions of the strike coat. Portions of the strike coat onto which no metal was electroplated are removed to thereby leave on the inner major surface of the layer a plurality of spaced apart electroconductive metal film runs comprising electroplated metal and the portion of the metal strike coat beneath the electroplated metal.

Abstract: An optical transmission monitor for determining the optical transmissivity and thickness of films deposited on a substrate. A monitor substrate in the form of a rotating disk exposed to the deposition process is used. An optical system for measuring the transmissivity of the disk obstructs a fixed segment of the rotating disk so that the film thickness on the monitor disk is a known fraction of the film on the substrate being processed.