Abstract: A cleaning mechanism for a filter cartridge is described, which includes a tubular flow duct, having a series of flow ports, spaced along its length. One end of the flow duct is closed, while the other, open end of the flow duct, has a hose coupling, that can be screwed onto a conventional hose, so that pressurized water, or other cleaning liquid, can be admitted to the flow duct. An annular filter cartridge, is mounted on the flow duct, between two circular disks carried at opposite ends of the flow duct. One of these disks, is removable from the flow duct, in order to permit the filter cartridge, to be installed onto the flow duct, or removed from the flow duct. When a pressurized cleaning liquid is admitted to the flow duct, the liquid pressure forces the liquid radially outwardly, through the filter cartridge, so as to dislodge contaminants from the annular filter body.

Abstract: An adjustable artist's easel, that includes a base, an upwardly extending pedestal, a picture frame support panel, and an articulated arm structure, extending between the pedestal and the panel. The frame support panel can be tilted around its point of connection to the articulated arm structure. Additionally, the frame support panel can be raised or lowered to various different positions, such that an artist can use the adjustable easel, in either a standing position, or a seated position. As an optional embodiment, the easel can be readily equipped with a painting materials tray, in the space below the picture frame support panel.

Abstract: A conformable sanding device incorporating a flexible attachment for ready attachment to a hand or power sander. The sanding device is particularly useful for sanding contoured and other non-planar surfaces and angles. The sanding device comprises a compressible sanding block, said sanding block further comprising flat surfaces of an abrasive material; and, said sanding block further comprising a flexible attachment strap. The flexible attachment strap is designed for ready attachment to, and ready removable detachment from, a hand or power sanding machine.

Abstract: An inflatable airfoil-shaped kite, which is framed by a front spar extending along the leading edge of the airfoil envelope, a rear spar extending along the envelope trailing edge, and two side spars extending along the side edges of the envelope. Upper and lower control lines are attached to end portions of the front and rear spars. Two control handles are attached to the opposite ends of the control lines, such that a person can manipulate the handles to move the kite through different maneuvers, e.g., reverse flight, power turning or pinwheeling. Each spar has end portions that can flex to generate localized drag forces which cause the kite to execute different maneuvers, as dictated by signals transmitted from the control handles through the control lines to end areas of the individual front, rear, and side spars.

Abstract: A collapsible biodegradable container, or bag, for containing liquid-containing solid materials, e.g., compostible materials, such as food waste, yard waste, etc., from restaurants, homes, etc. A single sheet of two-ply material is used to form both the bag side walls, as well as the bag bottom wall. Kraft paper is used to form the bag outer surface, whereas a cellulose film, or cellophane, is used to form the bag inner surface. A slab of moisture-absorbent material is also placed on the bag bottom wall, to intercept liquid draining from the contained material toward the bag bottom wall. The outer paper ply gives the bag its structural strength, so that it can be self-sustaining in an upright condition. The inner cellulose layer, or cellophane ply, provides a liquid barrier to protect the outer paper ply from the destructive effects of liquid. The bag, is also permeable to air and water vapor, while retaining liquids.

Abstract: A method and apparatus for the precision cutting of corrugated paperboard panels into rectangular test specimens, having shapes of predetermined size. A reference rod is inserted through a selected flute in the corrugated paperboard panel, prior to the first cutting operation on the raw panel. The reference rod is then placed in a specific location on the cutting table surface, so that the internal flutes in the raw panel are oriented at a specific angle to the cutting plane of the cutter mechanism. This ensures that the first edge formed on the raw panel has a precise orientation relative to the panel flutes, such that the final precision cut panel specimen can be used as a test specimen for performing edge compression tests, and other tests, that are reproducible, and representative of the characteristics of the corrugated paperboard panel structure.

Abstract: Dripless liquid training/feeding containers, being either a cup and/or a bottle, are described, particularly useful and suitable for babies, toddlers, as well as others requiring them. In operation, a liquid is first placed into, for temporary storage within the container's liquid housing. The container housing is then enclosed by a removably-mounted container sealing lid. During use by a baby or toddler, the liquid stored within the container, is slowly sucked or sipped out of the container's liquid housing, by means of a liquid outlet control valve, incorporated preferably within the container's sealing lid.

Abstract: Disclosed herein is a method of manufacturing a bonded particulate article by admixing particulate material with a binder system, the binder system being formed by admixing a polyol comprising a water soluble amylaceous hydrolyzate with a heterocyclic compound comprising the reaction product of glyoxal, urea, and formaldehyde, alone, or in further combination with ethylene glycol, with a solvent, and with an acid effective to control the rate of cross-linking between said polyol and said heterocyclic compound; forming the admixture in a shape and curing the shape to a bonded article.

Abstract: Disclosed herein is a method of manufacturing a bonded particulate article by admixing particulate material with a binder system, the binder system being formed by admixing a polyol selected from the group comprising a saccharide, a saccharide polymer, and a glyco protein with a heterocyclic compound of the formula ##STR1## wherein R.sup.1 and R.sup.2 are, independently, aryl of from 6 to 12 carbon atoms, alkyl of from 1 to 6 carbon atoms or substituted alkyl of from 1 to 6 carbon atoms wherein the substituting group is hydroxy, alkoxy of from 1 to 6 carbon atoms, hydroxyalkoxy of from 1 to 6 carbon atoms, cyano, carboxy, carbalkoxy of from 1 to 7 carbon atoms or carbamoyl, or when R.sup.1 is --C.sub.x H.sub.2x --, R.sup.2 is --C.sub.x H.sub.

Abstract: An improved surgical dressing or surgical sponge being a composite nonwoven and knitted fabric structure having high fluid absorbency and capillarity characteristics, is prepared by knitting a set of chain stitch wales of hydrophilic yarns, with said chain stitch wales being interconnected laterally by sets of filling courses, said filling course yarns being also comprised preferably of hydrophilic material. The chain stitch wale yarns are interknit through a light-weight, absorbent, non-woven web. The centrally disposed non-woven web is pliable and deformable so that capillary fibrous bundles of non-woven fabrics may be drawn into intimate physical contact with the yarns forming the loops of the chain stitch wales and their associated filling courses, resulting in a composite material having enhanced absorbancy and capillarity characteristics.

Abstract: The present invention comprises a water vapor permeable, pressure-sensitive adhesive composition useful for surgical and medical bandage applications, and incorporating modified copolymers of butyl acrylate containing N-vinyl 2-pyrrolidone and acrylic acid. The present pressure-sensitive adhesive composition results in enhanced water vapor transmission rates, which may lead to a concomittant reduction in skin lesions that were previously attendant upon the accumulation of water under conventional inadequately permeable pressure-sensitive adhesive-coated surgical and medical dressings.

Abstract: A method and apparatus herein is disclosed that consists of establishing and equilibrating a circuit path through a working test pipe electrode and a counter electrode in an electrolyte fluid in which said test pipe electrode achieves a state of cathodic protection. Disconnecting said cathodically protected working test pipe electrode from said counter electrode. Then re-establishing a circuit path through said working test pipe electrode, said counter electrode, and a reference electrode, in said electrolyte fluid along with an electronic control and measuring means. Subsequently causing a measured known voltage step to be applied to said working test pipe electrode. Then measuring the current flowing after application of said measured applied voltage step. Finally, then analyzing said current flow data and thereby determining the double layer capacitance at the interface between said working test pipe electrode and said electrolyte fluid as a measure of disbonded area thereon.

Abstract: The present invention discloses a novel readily removable and repositionable pressure-sensitive adhesive composition especially suitable for thin adhesive film applications to the surface of paper or other laminar backing materials, for easy application and removal of the laminar backing to a variety of substrate surfaces, which comprises: (1) a carboxyl-modified vinyl chloride-vinyl acetate copolymer; (2) a polymeric polyester plasticizer; and (3) a halo-organophosphorous plasticizer. In the present novel repositionable pressure-sensitive adhesive composition, the desired tack or adhesive bonding strength is selectively controlled by adjusting the relative concentration ratios of the halo-organophosphorous plasticizer and the polyester plasticizer in combination with the vinyl chloride-vinyl acetate copolymer.

Abstract: An apparatus and method is described herein which simulates and applies soil shear stress conditions to test pipe segments and thereby induces the mechanical soil stress effects upon adherent pipeline anti-corrosion protective coatings. A test pipe segment having an adherent anti-corrosion protective coating is emplaced centrally in a test apparatus housing chamber, having both a concentrically-located soil reservoir in contiguous contact with said test pipe segment, and a gas pressure reservoir surrounding said soil reservoir. Desired movements of said test pipe segment are controlled and regulated by a universal testing machine. Gas pressures in the gas pressure reservoir exerts pressure on the soil reservoir, thereby simulating soil stress forces on the centrally disposed pipe segment with its adherent anti-corrosion coating.

Abstract: An anticorrosion and high shear resistant pipewrap system is described wherein a pipe surface is first coated with a primer comprised of natural rubber, resins, and a metal oxide activator dispersed in an organic solvent. The primer-coated pipe is then overlaid with an adhesive-coated polyolefin tape, the adhesive comprising a butyl-based rubber, tackifying agent and a cross-linking agent, p-quinone dioxime. The cross linking agent functions in the presence of an organo-titanate-treated metal oxide, being a catalyst such as lead dioxide, or the like, that results in high rates of cross linking in both the primer coating, the adhesive coating and the primer/adhesive interface zone. Minimal creep of the described anti-corrosion protective coating is noted in high shear stress environments.

Abstract: An apparatus and method is disclosed herein for producing controlled perforations in an adhesive-coated porous web. A porous, woven or nonwoven web backing material has an adhesive, or the like, coated onto a surface thereof, and prior to drying of the adhesive thereon, a gas, or the like, is directed through a gas perforating means, which incorporates a plurality of apertures therein. While said gas perforating means is variably positioned in contiguous proximity to the moving adhesive-coated porous web, the gas stream impinges on the adhesive-coated porous web, resulting in a plurality of discontinuties or perforations being formed in the adhesive-coated porous web.