Abstract: A two component oil seal assembly including a combination oil seal and unitizing component having inner and outer cases, an oil seal having radial and axial flanges, and a centrifugally acting excluder unit which has an inside diameter adapted to be readily positioned over an associated shaft, an axially extending, generally cylindrical surface adapted to act as the wear surface or seal band engagement surface for the other component, and further including a radial flange having attached thereto an excluder seal adapted to engage a portion of the radial flange of the seal casing.

Abstract: Improved rigid urethane and isocyanurate foam compositions having improved fire resistance are described. The urethane foams are based on furan compositions having the formula: ##STR1## and from about 100% to about 500% of a stoichiometric amount of a reactive polyisocyanate to produce a foamable composition, and sufficient blowing agent to create a foam having a density from about 1.5 to about 5 pounds per cubic foot. The product has improved fire resistence. The disclosure also described the method of decreasing the flame hazard potential of a rigid foam by adding two urethane or isocyanurate foaming ingredients the appropriate amount of one or more of the compositions listed above. The polymers described are chiefly made from adding propelyne oxide to bis (hydroxymethyl) furan.

Abstract: A mechanical end face seal assembly with first and second, relatively rigid, primary seal rings of a generally T-shaped cross-section and a pair of annular secondary elastomeric seal rings. The secondary rings provide a combination of radial compressive load and axial end face load and are of generally parallelogram shaped cross-section. One secondary seal member extends radially outwardly from its associated primary seal ring and the other secondary ring extends radially inwardly from its associated primary ring.

Abstract: The invention relates to a fluid seal unit which vents gas pressure from a sealed region. The seal includes vents extending axially along its inside or outside mounting surface diameter, preferably communicating with an annular manifold lying adjacent one face of the seal. The manifold in turn is sealed by a flexible diaphragm which provides a valve or vent control action in use. The mounting surface containing the vent may be a metal surface, forming a part of the seal casing or a rubber surface where the seal has a rubber covered mounting flange.

Abstract: In a rotary end face seal for fluid pumps or the like including a housing adapted to be received within a seal counterbore, a primary seal ring with an end face portion adapted to engage a mating ring, a spring element urging the primary seal ring axially outwardly of the housing in a first direction, and an elastomeric sleeve providing a secondary seal between the housing and the seal ring. The seal also includes a seal ring holder and drive unit which includes radially inwardly directed drive surfaces adapted to engage counterpart outwardly directed drive faces on the primary seal ring, with both of the ring and the drive unit surfaces extending axially to permit free but limited axial movement of said primary seal ring.

Abstract: A kit containing equipment and medication to facilitate the removal of slivers or similar foreign substances from the human body. The kit includes a receptacle, adapted to be filled with an antiseptic or similar fluid, and a cap positionable over the receptacle in a fluid-tight relation. The cap includes a fluid applicator and a view enlarging assembly hingedly connected to the top section of the cap. The cap is also equipped with splinter removal equipment including a pair of tweezers and a needle.

Abstract: A catalyst material is described, particularly useful in making core sand from which resin bound sand shapes are made. The preferred catalyst is a material comprising at least one salt made from a weak base and an acid from the group comprising lower aliphatic and aromatic hydrocarbon sulfonic acids. The curable resin binder is preferably a furfuryl alcohol polymer or other furan-based material. The resin is preferably present in an amount of about 0.5% to about 5% based on the weight of sand, while the catalyst is present in an amount of about 5% to 40% by weight of the resin material. The catalyzed composition provides an excellent combination of working or bench life, rapid curing on a delayed action basis and favorable shape-imparting and holding properties in the formed sand shapes. Specifically preferred compositions include aluminum and copper phenol and toluene sulfonic acid salts.

Abstract: The present invention relates generally to windshields and fairings for motorcycles and the like, and more particularly, to an improved motorcycle windshield which is secured to a portion of the motorcycle or like supporting structure in a novel manner so as to provide reduced breakage, improved safety, and other desirable advantages and characteristics.

Abstract: An electronic locking device having a key unit and lock unit which units each have substantially identical integrated circuits contained therein for electronically controlling the operation of the locking device. The integrated circuit in the key element is adapted to transmit a stream of pulses into a plurality of trains of pulses upon insertion of the key unit into the lock unit. Each train of pulses is of a predetermined length. The integrated circuit in the lock unit is adapted to receive the train of pulses emitted from the key unit, to determine the length of the train of pulses, and compare the length of the train of pulses received to determine whether such train length coincides with the predetermined length. The integrated circuit in the lock unit will then emit a signal to allow the lock unit to open. If the length of the train of pulses does not coincide with the predetermined length, the lock unit integrated circuit will not emit a signal and the locking device will remain locked.

Abstract: A fuel filter assembly and cartridge for filtering, coalescing and separating solids, liquids, and gases from a fluid flow including a housing adapted to a removable cartridge. The cartridge is in the form of an annular member having an outer annular filtering section to remove solids an an inner annular coalescing section to cause emulsified liquids to form readily removable droplets in the flow. A separator is situated within the inner periphery of the coalescing section to deflect coalesced liquid for separation while permitting passage of the purified fluid.

Abstract: An elastomeric bearing assembly for supporting a rotor blade of a helicopter including a spherical elastomeric section mounted in serial relationship to a pair of frusto-conical elastomeric bearing section on the blade shaft. The frusto-conical bearing section includes two elastomeric bearings having bonded and alternate layers of elastomeric and non-extensible material and are arranged to receive the resulting force vectors in a direction normal to their planar surfaces.

Abstract: Copolymers of acrylic or methacrylic materials of known type and reacted with novel, silicone-substituted acrylic and methacrylic compounds so as to produce an oxygen-permeable plastic material which is uniquely suitable for manufacturing novel corneal contact lenses. The silicone materials include high molecular weight polysiloxanylalkylesters of acrylic and methacrylic acids, made from acrylic or methacrylic ester silanes containing one or more highly substituted siloxanyl groups.One such siloxane substituent, pentamethyldisiloxane, is prepared by a novel method. Certain of the substituted silanes are prepared using a novel compound, tris(trimethylsiloxy) acetoxysilane.

Abstract: A reinforced folding bleacher support structure and method of reinforcing existing folding bleachers. The improvement includes an adjustable brace structure which fits snugly over and reinforces the column support, and includes a pivoted adjustable horizontally extending brace. The horizontal brace pivots about a lower part of the vertical brace, and engages the column on both front and rear faces. Bending forces applied to the horizontal brace are transmitted to the vertical structure through a face plate abutted by a portion of the adjustment mechanism. The method includes reinforcing the column near the top portion thereof, positioning the horizontal brace and then adjusting it by manipulating the mechanism until the support structure is level for proper extension and retraction.

Abstract: An apparatus for unloading molded articles from a molding machine having a reciprocally mounted unloader assembly. The unloader assembly is provided with a plurality of slotted bars to receive a plurality of molded articles between adjacent pairs thereof. The molded articles retained between adjacent pairs of unload bars are moved to a position at which cam followers coupled to the moveable unloader assembly contact respective fixed stop plates. Upon contact, the unloader assembly swings about a pivot rod to deposit the molded articles into a collection element.

Abstract: A seal assembly for creating a fluid seal between first and second, relatively movable elements, at least one of which is arranged for rotation about a given axis. The seal has a mounting portion thereof adapted to be fixedly associated in use with said first element, a dirt exclusion portion and an oil retention portion. The dirt exclusion portion has a plurality of annular excluder lips, and the excluder lips, as manufactured, extend radially inwardly and are spaced axially apart from each other. The lips also have an inside diameter substantially smaller than that of said second relatively movable element, and the excluder lips, in position of use, contact and lie along the second element, as installed, the lips are flexed so that the inner portions thereof extend radially inwardly as well as axially away from the region to be sealed.

Abstract: A method of analyzing learning abilities and disabilities and administering learning therapy to students and other subjects. They are tested for reading ability while their behavior response patterns are being tested by instrumental means including instruments able to detect alpha brain wave patterns and physiological stress, and, where the instrument indicates that the test subject is undergoing a brain wave or stress pattern indicative of brain wave or stress patterns typically manifested by those having learning disabilities, general or specific therapy is administered to reduce the occurrence frequency and duration of high amplitude alpha waves and to reduce the stress patterns within the test subject by sensory motor therapy, print size variation reading therapy and nutritional therapy.

Abstract: A seal unit having first and second members adapted to engage, respectively, first and second sealed parts, torsionally deflectable means joining the first and second members, with the first and second members respectively having cooperating means thereon for engaging each other after a predetermined amount of free movement between them has taken place with at least one of said end members being constructed and arranged to permit movement relative to the part with which they are associated in use, whereby, the end parts do not engage each other during limited oscillation, but upon engagement, cause the driven end part to rotate to one of the sealed parts.

Abstract: A knock-out method and apparatus for use in connection with the molding of articles, such as, for example, oil seals fabricated from elastomeric material bonded to a rigid casing, including a plurality of plunger members to apply successive sequential forces to selected sets of molded oil seals for removal thereof from frictional engagement within the molding machine and permit subsequent retrieval from the molding machine. The plurality of plunger members move upward into contact with oil seals retained in the molding center plate to apply sequential forces to the selected sets of the molded articles to position the seals for ready access on top of the plate.

Abstract: A catalyst material particularly useful in making core sand from which resin bound sand shapes are made. The preferred catalyst is a material comprising at least one salt made from a weak base and an acid from the group comprising lower aliphatic and aromatic sulfonic acids. The curable resin binder is preferably a furfuryl alcohol polymer or other furan-based material. The resin is preferably present in an amount of about 0.5% to about 5% based on the weight of sand, while the catalyst is present in an amount of about 5% to 40% by weight of the resin material. The catalyzed composition provides an excellent combination of working or bench life, rapid curing on a delayed action basis and favorable shape-imparting and holding properties in the formed sand shapes. Specifically preferred compositions include aluminum and copper phenol and toluene sulfonic acid salts.

Abstract: A method of treating papermaking white water which contains dissolved solids, usually of a biodegradable organic nature. According to the invention, the dissolved organic solids, which are objectionable because they cause process equipment corosion, undesirable product and process odors and water pollution, are treated with ultraviolet light so as to lower their concentration and eliminate these problems. The light treatment causes material of relatively simple chemical structure to polymerize into more complex, less soluble materials which can easily be removed from the system as they become less soluble. The method is applicable to papermaking and other industries process using large quantities of process water. The treatment cell, which preferably operates on clarified white water, may be placed in series with the process while water flow or in parallel therewith, and can be operated as a continuing treatment process or as a intermittent treatment process.