Abstract: Apparatus for monitoring fluid contaminant level that includes a light source positioned on one side of a fluid sample path for directing light energy into fluid flowing in the sample path, a photosensor positioned on the same side of the sample path, and a reflector positioned on an opposing side of the sample path for receiving light from the source transmitted through the sample fluid and reflecting such light back through the fluid to the photosensor. The photosensor provides an electrical signal as a function of intensity of light incident thereon from the light source after having twice passed through the fluid, and the concentration or level of contaminants in the fluid is indicated as a function of such electrical signal. Thus, the concentration of contaminants that extinguish light energy transmitted through the fluid is indicated as an inverse function of light intensity at the photosensor, and may be compared to a preset target threshold level for indicating an undesirably high contamination level.

Abstract: A replaceable elastomeric cushion for use in an assembly with a glass panel and support fixture is disclosed. The replaceable elastomeric cushions are made of a soft compliant material and have one substantially planar surface for contacting the glass panel. A second surface has a number of projecting members which fit into corresponding orifices in the support fixture. The replaceable cushion thus rests between the glass panel and the support fixture to prevent marring or scratching of the glass. Since the replaceable cushions are not permanently attached to the support fixture, they may be easily replaced without having to replace the support fixture.

Abstract: A snap-on dress wheel simulator for applications such as utility and recreational vehicles including motor coaches, trucks and the like, includes a unitary sheet metal shell formed of a central hub cover and an annular dished ring which are permanently joined. The shell also carries lug nut covers and a metal grip ring having teeth which engage a safety hub of the vehicle wheel rim. The grip ring is seated in an annular channel of a molded plastic mounting collar. The collar includes an enlarged outer peripheral bead and the peripheral edge of the shell is crimped around the collar bead to fasten the collar to the shell.

Abstract: N-ethyl alkanohydroxamic acids, where said alkyl group is a straight chain alkyl group of 8 to 10 carbon atoms, or a branched alkyl group of 8 to 18 carbon atoms, provided said alkyl group is not cyclic, useful as metal chelants for use in organic solvent extractant solutions such as kerosene to extract metals from aqueous solutions by forming complexes of the extracted metal with the N-ethyl hydroxamic acid. Metals can be stripped from complexes of N-ethyl hydroxamic acids at higher concentrations into lower strength acid stripping agents. The N-ethyl hydroxamic acid-containing organic solvent extraction solutions exhibit rapid phase separation from aqueous solutions, good hydrolytic stability and resistance to forming emulsions.

Abstract: A conceal band for a painted or chromed stylized steel vehicle wheel overlies an annular concave peripheral channel of a wheel rim to conceal unsightly surfaces and wheel balance weights. The band, formed of sheet steel, is generally concave in transverse cross section facing the wheel and is of a radial width sufficient to overly and conceal the channel. The band carries a plurality of mounting clips retained between opposed inturned peripheral edges of the band. Each clip includes an arcuate body which spans radially across the band between the peripheral edges of the band. A cantilever leaf spring section projects beyond a radially outer end of the body with the leaf spring section being connected to the body by a sharp bend. The leaf spring section includes a curved engagement surface which is biased against the concave peripheral channel to retain the band.

Abstract: An attachment surface for increasing adhesion between two objects or materials and a method for creating such a surface is disclosed. A substrate, including articles such as particularly an implantable device and high performance aircraft parts, is provided with a random irregular pattern formed through a repetitive masking and chemical milling process. Surface material is removed from the substrate without stress on the adjoining material and the process provides fully dimensional fillet radii at the base of the surface irregularities. This irregular surface is adapted to receive the adjacent material to be joined thereto, such as the ingrowth of bone material, and to provide a strong anchor for that material. The unitary nature of the substrate and surface features provides a strong anchoring surface with is resistant to cracking or breaking.

Abstract: A digging implement, for example, a snowthrower has a casing with a discharge from the casing and a coiled blade mounted in the casing on a lateral shaft. The blade is arranged for advancement sideways into a body of particulate material, e.g. snow. The blade shaft also carries a pair of discs attached to the shaft at opposite ends of the blade, with each of the discs having a cutting edge portion formed into radial corrugations. The discs cut kerfs in the snow at either end of the blade and reduce the power required to advance the implement into the material being removed.

Abstract: An apparatus for detecting and counting particles in a gas stream flowing at a preselected rate, wherein the apparatus includes a multi-tier inlet manifold and a plurality of sensors. The inlet manifold divides an aggregate sample flow into a plurality of substantially identical partial sample flows. Each partial sample flow enters one of the functionally duplicative sensors and is intersected by an incident beam to define a view volume. Particles contained within the partial sample flows scatter light as the particles pass through the view volume. The scattered light is directed to a photodetector which provides a signal having characteristics corresponding to the sensed light. Particle detection in each view volume is operationally independent of the others, but the information is combined to provide a total particle count of the aggregate sample flow.

Abstract: A duct joining system having two L-shaped connectors for each duct corner. Each connector has two substantially perpendicular legs forming a corner region and has an inside and an outside surface with the outside surface of one L-shaped connector abutting the outside surface of the other L-shaped connector when the ducts are joined. A orifice is formed in the corner region of each L-shaped connector in alignment with the orifice in the aubutting connector. A cleat is integrally formed with and extends inwardly from the peripheral edge of each of the orifices. A score line is formed at the base of each cleat on the outside surface of the connector to allow the cleat to be bent outwardly about the score line so as to extend through, and over the peripheral edge of, the orifice in the abutting L-shaped connector to lock the connectors together.

Abstract: A molded thermoplastic lug nut cap suitable for mounting wheel covers includes a hollow cylindrical body. Axially projecting from the body is a crown having a plan configuration congruent with a lug nut. The fastener is slipped over a lug nut which extends through an opening in the wheel cover and abuts against the wheel cover. A lug wrench is employed to twist the cap relative to the lug nut. The internal walls of the body include a plurality of chordal planar faces extending parallel to the axis of the cap with diagonally opposed chordal faces being positioned apart a distance greater than diagonally opposed faces of the lug nut but less than the distance between diagonally opposed corners of the lug nut. When the cap is twisted relative to the nut, corners of the nut engage and lock against the chordal faces in interference fit. An abutment rib project radially inwardly from each chordal face and provides a positive rotation stop when contacted by the face of the nut.

Abstract: A dress wheel simulator for a truck or recreational vehicle wheel includes a stainless steel shell adapted to cover the outer face of the wheel from the wheel rim to a central wheel hub area. The simulator shell includes an enlarged opening in its wheel hub area with the opening being sufficiently large so as to permit the shell to pass axially over a majority of the wheel lugs with the lug nuts attached. A simulator hub cover having a radial flange with a plurality of lug nut openings and a pair of diametrically opposed lug openings is also provided. To mount the simulator, a pair of opposed lug nuts are removed, the shell is positioned against the wheel, the lug nut openings of the hub cover are registered with the lugs having their nuts removed and the lug nut openings are registered with the remaining lugs and the hub cover is passed axially over the lugs and lug nuts and against the shell. Thereafter, the lug nuts are reapplied and tightened to secure the simulator.

Abstract: Corner connection for frames for double glazing, characterized in that it principally consists of two hollow profiles (1) to be connected to each other and a corner profile (20) of which the arms can be placed in open cavities (4) of the profiles (1) and that has a sealing wall (23) between the arms (21-22) which after joining together the profiles (1) seals the closed hollows (3) of the profiles (1).

Abstract: An apparatus and method for particle detection which includes a plurality of sample regions. A sensor body has internal walls which define spaced apart sample regions, with each sample region having an inlet port and an exhaust port. An aggregate sample flow is divided into partial flows which are directed from the inlet port to the exhaust port of an associated sample region. A light source, typically a laser, is positioned to project an incident beam along a light path which intersects each of the partial sample flows through the sample regions. Particles contained within the partial sample flows scatter light as the particles pass through the incident beam. The light from a sample region is directed to a photodetector which provides a signal corresponding to the sensed light. Particle detection in each sample region is operationally independent of the others, but the information is combined to provide a total particle count of the aggregate sample flow.

Abstract: A process for recovering copper from cupric ion containing aqueous solutions which comprises adding to the aqueous solution containing cupric ions an amount of reducing agent which corresponds from 0.1 to 10 moles of reducing agent per mole cupric ion, and heating the reaction mixture in the absence of oxygen in a closed vessel to a temperature of from 170.degree. to 240.degree. C., said reducing agent being one or more members of the group consisting of:(a) organic aldehydes RCHO (R=H, C.sub.1 to C.sub.5 alkyl)(b) carboxylic acids R COOH (R=H, linear or branched C.sub.1 to C.sub.5 alkyl)(c) hydroxycarboxylic acids R.sub.1 COOH (R.sub.1 =HO(CH.sub.2).sub.n, CH.sub.3 CH(OH)--, CH.sub.3 (CH.sub.2).sub.n, CH(OH)-- with n=1 to 3)(d) dicarboxylic acids R.sub.2 COOH (R.sub.2 =HOOC(CH.sub.2).sub.n with n=1 to 3)(e) amino acids R.sub.3 COOH (R.sub.3 =CH.sub.3 (CH.sub.m CH(NH.sub.2)-- (CH.sub.3).sub.2 (CH).sub.m CH(NH.sub.2 -- with m=1 to 3, CH.sub.3.CH(OH)(NH.sub.2), HOO C.CH(NH.sub.2).(CH.sub.2).sub.

Abstract: A stolen vehicle recovery system (20) in which a vehicle transceiver (30) is disposed on each vehicle (28) for cyclically transmitting a pulsed signal which is modulated by a data stream comprising a verification code, a unique identity code associated with the vehicle (28), and a code which corresponds to whether the detected vehicle (28) is moving or stationary. The vehicle transceiver (30) is automatically activated if a proper authorization signal is not provided to the transceiver (30) by a verification unit. A scanning receiver (42) decodes the pulsed signal and provides the information to a control processor (40) which, in turn, sets remote direction finding receivers (44, 46, 48), set up in a triangulation antenna array, to the appropriate channel. The D.F.

Abstract: The display framework construction comprises at least one column including a base and an elongate upwardly extending column assembly including four generally cylindrical elongate members. Each generally cylindrical member is located at a corner of the column assembly. The column assembly further includes an interior elongate tubular member having a generally +-shaped cross-section with four narrow elongate walls interconnected by four elongate walls each having an arcuate, concave cross-section. Each narrow elongate wall has a plurality of vertically spaced apart slots therein for receiving hooks on brackets for creating different display framework constructions. The brackets are provided at one or both ends of an arm assembly comprising an upper generally cylindrical elongate member and a lower generally cylindrical elongate member fixed in a position juxtaposed to the upper generally cylindrical elongate member.

Abstract: A stainless steel wheel trim ring is constructed of an outer ring and a grip annulus. The outer ring is formed of a sheet metal band which is constructed from a rectangular blank having a pair of wedge shaped strain relief notches in a longitudinal edge adjacent to each end. The blank is welded at the joined ends to form the band. During manufacture, the band is expanded in the order of 25% at the longitudinal edge. A crimped peripheral bead along the longitudinal edge secures the grip annulus to the outer ring.

Abstract: A method and system for updating a digitized map. An operator-controlled vehicle provided with an onboard computer and a navigational transmitter unit is dispatched to a location provided on the map near to an unknown location. The vehicle would then traverse the segment between the known intersection and an unknown intersection while it is being tracked by the navigational tracking unit. When the unit reaches the unknown intersection, the address range as well as the street names of the intersection are verbally inputted into the system. The information collected by the computer is then inputted to the central computer which edits this information and updates its central file to produce a new updated version of the digital map.

Abstract: A blade is provided for a digging implement, especially a snowthrower. The implement is of the type having an auger blade arranged for advancement sideways into a body of material to be removed. The blade consists of a band with a leading edge wound along a blade axis, preferably helically, and a tapered body that slopes towards the axis away from the material discharge of the device. In the case of a snowthrower, where the material discharge is at the center, the blade will have two sections, wound oppositely around the blade axis and tapering in opposite directions towards the axis, away from the center discharge. The blade performs a slicing action on the material to be removed rather than scraping material from its face as is the case with the conventional snowthrower and analogous implements. The blade is thus aggressive and draws itself into the material, reducing the power requirements of both the blade and the system for propelling it into the material.

Abstract: A lily plant named Chicago having strong stems, bright yellow flowers, flferous habit, medium green foliage, excellent keeping quality when cut, and relatively fast growth to flowering.The present invention comprises a new and distinct cultivar of lily, botanically known as Lilium, and hereinafter referred to by the cultivar name Chicago.Chicago is a product of a planned breeding program which had the objective of creating new lily cultivars with strong and long stems, high flower production from relatively small bulbs, bright colors, superior quality and strength when cut, and relatively short growth time in the greenhouse. These traits in combination were not available or needed improvement in existing cultivars.Chicago was originated from a hybridization made by the inventor in a controlled breeding program in Hoffgaarde B.V. Hemmerbuurt 205, Hem, Holland in 1980. The male and female parents were seedlings which are not known at this time.