Abstract:
An aircraft data management system providing management of a variety of flight data generated by multiple data sources. The flight data may include a wide variety of operational, maintenance, and flight safety data. The data management system is compatible with a variety of computers employing a variety of operating systems. The data management system provides flight data sources, a computer, and means for transmitting the flight data from the various flight data sources to the computer. In order to provide the flight data in a useful form to different users having a variety of needs, the data management system provides a reconfigurable algorithmic network, resident on the computer, which defines a set of predetermined operations performed on a predetermined set of the flight data. The data management system also provides a means, resident on the computer, for interpreting the flight data in accordance with the reprogrammable algorithmic network.
Abstract:
Novel trifluoromethylated intermediates are provided which are useful in synthesizing trifluoromethylated organic compounds. Specifically, compounds of the formula: CF3CCl=CHCH2X are provided, which compounds are versatile intermediates for the synthesis of a wide variety of trifluoromethylated organic compounds.
Abstract:
A light directing optical structure is formed of a light waveguide (40) preferably made of clear plastic; attached to or formed with the waveguide are a multiplicity of prisms (42). Each prism (42), due to its index of refraction, provides an aperture where light may escape the waveguide (40) rather than remain confined due to total internal refraction. The light escaping the waveguide (40) is reflected from a side face (32) of the prism (42), and redirected in a desired direction. The propagation paths within the waveguide (40) are such that the light emerging through the aperture is of only a fairly closely constrained range of angles; as a result the light that is redirected by the side face of the prism is of a similarly constrained range of angles. The geometry of the prism (42) can be optimized to direct the output light perpendicular to the plane (33) of the waveguide (40), or at a desired angle other than perpendicular. The optical structure can receive a light input along an edge, or along several edges, and its output beam is perpendicular to the structure or at some desired angle other than perpendicular. There is no restriction on the distribution and uniformity of the light input, yet the output is a directed and intensity controlled light source. Configurations are disclosed adapting the structure to several different possible light distribution patterns.
Abstract:
The invention is directed to a process of preparing multicyanate esters by: a) reacting an adduct of a tertiary amine and a phenol-formaldehyde oligomer with cyanogen halide in a solvent to form a reaction product stream containing at least one compound selected from the group consisting of tertiary amine-hydrohalide salt, solvent, and impurities, and, based upon the total weight of the reaction product stream excluding the weight of the tertiary amine-hydrohalide salt, from about 10 percent to about 40 percent of a multicyanate ester; b) recycling a portion of the reaction product stream into the mixture of step a; and c) separating and recovering the solvent and tertiary amine from the reaction product stream. The multicyanate ester products produced are useful as bonding agents in friction materials, molding materials, coatings, and adhesives.
Abstract:
A vehicle anti-theft system in the form of a mechanically interengagable electronic key and lock includes stored key and vehicle identifiers in both the key and in the lock. A random number is generated in the lock each time the vehicle ignition switch is closed and that random number is used to encode one of the identifiers for transmission to the key. The key uses the corresponding stored identifier to recover the random number. The other stored identifier is then encoded using the recovered random number and the encoded other identifier is returned to the lock. The lock uses the generated random number to recover the second identifier for comparison to its stored value. If the comparison fails, vehicle operation is prevented. The system may effect several trials, each using a new random number before refusing further attempts. The lock electronics is preferably disposed in the vehicle fuel tank and controls operation of the vehicle fuel pump.
Abstract:
A safety device comprising: a retractor (22) for protracting and rewinding a safety belt to be worn about an occupant, having a lock wheel (42) and an associated lock pawl (74) movable into engagement therewith upon sensing an emergency condition by a sensing mechanism (50); a pretensioner for rotating the spool in a belt winding direction and a rotary element (80) for converting pretensioner motion to rotary motion and a spring loaded mechanism for providing for locking readiness of the lock pawl and operable after activation of and during rotation of the spool in the belt winding direction. Each of the frame sides includes a positioning hole or opening (70a and 70b) through which the tie bar (72) of the present invention extends. If the retractor uses two lock wheels, two such lock pawls would be used.
Abstract:
An optical illumination system comprising a waveguide (16) that accepts light generated by a light source and transmits the light via total internal reflection. Attached on one face of the waveguide is an array of microprisms (28), with each microprism having a light input surface, a light output surface and at least one sidewall (33a) which is tilted at an angle rho from the direction normal to the surface of the waveguide (16) and further comprising at least two planar faces (31, 31a) such that light escapes from the waveguide (16), reflects off the tilted sidewalls (33a) and emerges from the microprism as a spatially directed light source. An array of microlenses may be positioned to accept the output of the microprisms (28) so that the light exiting from the microlenses is a substantially collimated light source. The optical illumination system is advantageous for any application that requires a non diffuse or substantially collimated light source that is both energy efficient and contained in a low profile assembly.
Abstract:
The external concentric aircraft brake piston adjuster assembly (10, 100, 200) comprises in a piston housing (12, 112, 212) a housing bushing bore (19, 119, 219) having disposed slidably therein a brake piston (30, 130, 230) with a shoulder (35) abutted by a deformable member or adjuster tube (40, 140, 240) of the assembly (10, 100, 200). The deformable member (40, 140, 240) has a second end (42, 142, 242) extending exteriorly of the bore (19, 119, 219) and is engaged by a brake piston adjuster (11, 11', 11'', 111', 211') that includes a radially inwardly extending end (54) of a deforming member or collar member (50). Collar member (50) has a first end (51) comprising a plurality of axially extending fingers (52) which are received within axially extending slots (21) of a housing bushing (14), and located between the slots (21) are a plurality of bushing splines (23). The splines (23) include a threaded exterior diameter area which receives threadedly a nut member (60) located around the collar member (50). The collar member (50) includes the first end (51) disposed opposite and adjacent a first end (62) of the nut member (60), first ends (51, 62) including steps (53, 63) receiving and positioning a resilient member or disc spring (70). As the piston (30) is displaced axially from the bore (19) by hydraulic brake pressure, the deformable member (41) travels with the piston (30) and displaces the collar member (50) relative to the nut member (60) and housing (12), to take up a piston return stroke clearance ("X"). As displacement of the piston (30) and adjuster tube (40) extends beyond the clearance ("X"), the collar member (50) deforms the adjuster tube (40) to effect an adjusted position of the piston (30) relative to the housing (12). At the termination of braking, the resilient member (70) biases the collar member (50), adjuster tube (40) and piston (30) to an at-rest position. The resilient member (70, 170, 180, 280) can comprise either a low modulus, high strength flexible tube (170, 180) having a plurality of circumferentially extending openings (172, 182) or a bellows spring (280).
Abstract:
A safety restraint system (20) comprising: a safety belt system (24, 26) for restraining an occupant comprising: a safety belt (24, 26); a retractor (30) for protracting and retracting the safety belt, a shoulder belt support (32) for supporting the shoulder belt portion of the safety belt; a pretensioner (38) for providing, subsequent to activation, a preload tensile force in the shoulder belt portion in excess of a first low limit value of about 50 pounds; a load limiter (156, 162) for limiting the loads imparted by the shoulder belt portion to an occupant, operative after the preload acts on the shoulder belt portion, including first means for introducing a predetermined amount of slack in the shoulder belt when the belt tension is above a second low limit value and for preventing such slack introduction when belt tension is lower than such second low limit value.
Abstract:
An article of manufacture which has a high resistance to chemicals, solvents, and heat formed from a blend of (A) a polyamide, such as polycaprolactam; (B) a functionalized polyethylene, such as low density polyethylene; and (C) an unfunctionalized low density polyethylene. The blend has a melt viscosity suitable for extrusion into convoluted tubing, nonconvoluted tubing, sheets, films, and the like.