Abstract: Catalysts for the production of alkylene oxide by the epoxidation of alkene with oxygen comprise a silver impregnated support containing a sufficient amount of scandium component to enhance at least one of activity and/or efficiency as compared to a similar catalyst which does not contain scandium component.

Abstract: A valve assembly of novel configuration is associated with the main air induction passage of a fuel-injected, spark-ignited, automotive internal combustion engine for the purpose of regulating the idle air flow. The valve assembly has an inlet connected upstream of the throttle and an outlet connected downstream of the throttle. A pintle controls the restriction that the valve assembly imposes on the idle air flow. The valve assembly is controlled by the engine computer selectively energizing a solenoid on the assembly. In one embodiment the solenoid armature controls flow through another flow path of the valve assembly that parallels the idle air flow path. A movable internal wall divides the valve assembly's body into two variable volume chambers. One chamber forms part of the idle air bypass while the other forms part of the parallel flow path. The one chamber is essentially at manifold vacuum while the other is regulated by a bleed valve and two orifices in the parallel flow path.

Abstract: The field of the present invention is that of an apparatus and method of installing weather stripping in a door and like openings using a robot. The field of the present invention is also that of an end of arm tooling device (EOAT) for a robot which installs weather stripping in a door and like openings.

Abstract: A valve assembly of novel configuration is associated with the main air induction passage of a fuel-injected, spark-ignited, automotive internal combustion engine for the purpose of regulating the idle air flow. The valve assembly has an inlet connected upstream of the throttle. A pintle controls the restriction that the valve assembly imposes on the idle air flow. The valve assembly is controlled by the engine computer selectively energizing a solenoid on the assembly. The solenoid armature controls flow through another flow path of the valve assembly that parallels the idle air flow path. A movable internal wall divides the valve assembly's body into two variable volume chambers. One chamber forms part of the idle air bypass while the other forms part of the parallel flow path. The one chamber is essentially at manifold vacuum while the other is regulated by a bleed valve and two orifices in the parallel flow path. Positioning of the movable wall positions the pintle.

Abstract: The properties of polymer films which contain thermoplastic block copolymer compositions and ethylene/vinyl acetate copolymers are improved by the addition of small amounts of polystyrene. Specific improvements have been made in elastically and tensile strength as well as in reduced die build-up during processing.

Abstract: An apparatus for retrieving a pipe section from a well bore includes a structure to be connected to the lower end of a drilling string. The structure includes a cutter at its lower end and a controllable gripping member for gripping the interior of a pipe section. The gripping member is located above the cutter and is adapted to grip the interior of the pipe. The gripping member is such that when in a gripping condition the gripping member remains stationary while the drilling string and the cutter are rotated.

Abstract: A composition is provided which is suitable for extrusion blowing to form an elastomeric film. The film produced from this composition has a very low modulus, high elongation and excellent elastic recovery. The composition comprises: two hydrogenated block compolymers each comprising at least two blocks containing predominantly polymerized alkene arene monomer units and at least one block containing predominantly polymerized conjugated diene monomer units, the first hydrogenated block copolymer having a molecular weight between about 55,000 and about 200,000 and the second hydrogenated block copolymer having a molecular weight between about 15,000 and about 85,000, the ratio of the molecular weight of the first of the second being greater than 1.

Abstract: A building construction system provides a building which contains four separate but connected self-standing units each with its own roof and four walls. A member in the shape of a cross extends vertically above the roofs and horizontally beyond the outside walls of adjacent units. The member has two planar arms intersecting each other at right angles along a central vertical axis, thus providing four 90 degree quadrants, each of which contains a different one of the four units.

Abstract: In order to obtain greater flexibility in the design of a linear-phase electrical filter comprising an acoustic surface wave device including a pair of apodized transducers intercoupled by means of a multi-strip coupler, for example to obtain more equal contributions by the two transducers to the gain versus frequency characteristic of the filter, the transducers are apodized differently but have mutually complementary non-linear phase characteristics. First a transfer characteristic corresponding to the collective contribution to the desired overall gain versus frequency characteristic of the filter, is derived in terms of the z-transform and the roots or the reciprocals of the roots of the resulting polynomial in z.sup.-1 are found. These roots or reciprocals are then divided into two groups so that at least one pair of non-identical roots or reciprocals which have equal ratios between their real and imaginary parts and the product of the moduli of which is equal to unity are included one in each group.

Abstract: A mechanical seal for closing the gap between adjacent ends of rigid tubes which must remain in fixed position makes use of two complementary semicylindrical shells, each of which carries a molded sealing gasket provided with a recess adapted to fit around the tubes and around the space between them. A clamp attached to one shell has opposite ends which reach around corresponding protuberances on the other shell. The clamp operates to draw the shells and the molded sealing gaskets into sealing engagement with the rigid tube ends and with each other, thereby to close the gap with a dependable, replaceable seal.

Abstract: A chamber door lock for a roller lock system wherein a vertically reciprocable locking bar is provided with a series of rollers and a vertically reciprocable chamber door is provided with spaced block weldments. The chamber door lock includes a cam beam pivotably mounted on the chamber and coupled to the locking bar. Upward movement of the locking bar to its uppermost position clears the rollers from the door block weldments and swings the cam beam away from the top of the door to a clearance position whereby the chamber door can be raised and swung to an open position. Downward movement of the locking bar to its lowermost position moves the rollers into engagement with striker plates on the door block weldments thereby urging the door against the chamber face so as to compress the door gasket and seal the chamber face.

Abstract: A pressure control override apparatus for overriding a conventional pressure control starting switch on a refrigeration system is provided. The apparatus includes a power supply that receives power only when the valve in the liquid line of the refrigeration system is open. The apparatus also includes a temperature sensor for sensing the ambient temperature in the area of the compressor and condenser. The apparatus further includes a circuit to start the compressor that is separate from the normal pressure control starting switch when the apparatus is energized and the ambient temperature sensed by the temperature sensor is lower than a preselected temperature.

Abstract: A canister purge valve comprising: a housing (12) including a vacuum chamber (14) communicated to an extending vacuum port (16) and an opening (26); an assembly (40) received within the housing (12) including a valve seat (76) positioned within the vacuum chamber (14) and an axially extending inlet port (58) extending through the opening (26) in said housing (12). The valve including a plurality of passages (57, 60, 62) communicating the inlet port (58) to the vacuum chamber (14); valve means (90, 92, 94, 96) movably positioned within the vacuum chamber (14) for seating upon the valve seat means for biasing (98) the valve means (90, 92, 94, 96) against the valve seat (76) and means for generating (42, 44, 52, 100, 120) a magnetic flux signal in response to control signals for urging the valve means to seat upon said valve seat (76).

Abstract: A valve (10) comprising a housing (14, 16, 18) defining a plurality of ports (62, 70, 72) two of such ports terminating in opposingly spaced, axially aligned valve seats (54, 94). The valve includes an assembly comprising a coil (124) responsive to control signals and a substantially hollow armature (200) movably positioned relative to said valve seats (54, 94) in response to the magnetic force generated in response to the control signals. The armature includes seating element (212; 320) for selectively engaging either one of the valve seats (54, 94) and preventing communication therethrough, means for receiving, interior thereto, one of said valve seats (94).

Abstract: The present invention provides an inhalation device for use with a pressurized container having an outlet valve mechanism and from which material may be discharged by depression of a portion of the valve mechanism thereof, which device comprises a chamber for receiving said container; actuating means adapted to bear on the valve mechanism of the container; and first and second biasing means both adapted to bias the container towards the actuating means, said first and second biasing means each being of insufficient force alone to depress the portion of the valve mechanism of the container but together being of sufficient force to do so, said second biasing means being restrained in a position in which it does not bear on the container and releasable on inhalation through the device to a position in which it does bear on the container.

Abstract: There is disclosed a sidecar having a self-adjusting castering wheel located forwardly of the rear wheel of the associated motorcycle and which, together with the sidecar, is connected by a parallelogram linkage to the frame of the motorcycle so as to lean in substantial union with the motorcycle and the sidecar body.

Abstract: A surface acoustic wave bandpass filter consists of input and output interdigital transducers (IP, OP) with an interposed track changing multistrip array (MSA). A conventional broadband array (MSA) is divided into two groups of strips with respect to a center of symmetry (C) separated by different distances along the input track (T1) and the output track (T2) such that the array (MSA) suppresses a predetermined frequency. If the input and output transducers (IP, OP) both have a double electrode configuration, electrode separation .lambda.o/4, providing a fundamental passband at a corresponding frequency f.sub.o and an equal amplitude passband at the third harmonic 3f.sub.o, then a separation difference of .lambda.o/6 between the groups of the array (MSA) in the two tracks (T1, T2) can suppress the third harmonic passband in the filter output. The two groups of the multistrip array may be further sub-divided to suppress more than one frequency (FIG. 5).

Abstract: A new variety of tropical mango originating from a sucker that sprouted from a root of a Keitt Mango tree. The new variety is characterized by a fruit averaging 18 to 19 oz. and having a bright green underside with blended shades of yellow and peach on most of the surface. The fruit flesh is bright yellow with a small seed.

Abstract: A new Mango tree which annually bears uniquely colored fruit on well spaced branches. The fruit has bright orange flesh and small seeds.