Abstract: A counter apparatus for counting the cycling of fluid flow in an automatic pneumatic pump. A magnet inside the pump repetitively moves along a fixed path in response to the pump cycling. A magnetic sensor for detecting magnetic flux is mounted on the pump. The sensor transmits an electrical signal to a counter in response to detecting the magnet at a certain location. When the magnet leaves this location the sensor stops transmitting the signal. Since the magnet is only at any location along the path only once during a complete pump cycle, the transmitted signal represents a pump cycle which is then counted by the counter.

Abstract: An apparatus for attachment to a dock to permit a person to take a dock in or out of the water including a pair of cylindrical flotation members, the cylindrical flotation members having sufficient buoyancy to support a water end of a dock with a person thereon, each of the cylindrical flotation members having extensions for positioning the flotation members laterally on opposite sides of a dock, the flotation members pivotable from a non-dock supporting position to a dock-supporting position, each of the cylindrical floatation members having sufficient diameter to enable the cylindrical flotation members to roll over land like a wheel.

Abstract: An injection-molded plank for forming a dock comprising an elongated member having a generally box-like shape with a top surface for walking on, a front side, and a backside having a plurality of openings therein with the front side having a plurality of spacers mounted on the front side to space one plank from an adjacent plank with a plurality of, pins extending from the front side with the pins having a diameter smaller than mating openings in the backside of the adjacent plank to hold the planks in a shiftable relationship to one another and a separate reinforcing rib secured to the plank with the reinforcing rib having a fastener plate for securing the reinforcing rib to a support member so that the reinforcing rib provides stiffening to the plank and the pin holds adjacent planks in a shiftable relationship to one another while fastener extending through a fastener plate on the reinforcing rib secures the planks to the support member.

Abstract: A dock kit to permit an owner to assemble or disassemble a dock comprising a dock post bracket for laterally inserting a dock post therein, a reversible cross-latch member for locking a dock post in the dock-post bracket with the reversible cross-latch member operable for engaging a dock-abutment bracket to support an adjacent dock section when the cross-latch member is located in one direction in the dock-post bracket and when reversed is usable as an end support for the dock-post bracket. The brackets provide both corner reinforcement for a dock-deck section as well as permitting a single dock post to support corners of adjacent dock-deck sections. A split foot pad permits adjustment of the depth the dock post extends into the soil. A hanger bracket permits one to support the corner of an adjacent dock-deck section without using an extra dock post.

Abstract: A trailer is disclosed having a verticaly positionable roof to permit towing with minimum drag and buffeting. Electromechanical actuators position the roof. A rear wall is comprised of ramps which abut one another and brace the rear upright edges of the trailer sidewalls. A side door of the trailer permits entry and exit from an automobile parked in the trailer. A skirt portion of the roof additionally includes a door overlying the first-mentioned door to permit standard door height. Collapsible shelves within the trailer facilitate secondary use of the trailer when parked. The trailer ramps are spring biased to facilitate their positioning.

Abstract: A composite membrane is disclosed having a microporous support which is coated with a UV curable polymer composition having a sufficiently high viscosity to prevent pore filling upon coating and curing. A process for making and a process for using the membrane is also disclosed.

Abstract: Apparatus for the separation of a mixture of discrete particulate solid materials of disparate composition and a system utilizing such apparatus is described in which the material to be processed is caused to slide under the influence of gravity along a straight inclined surface to achieve a substantially uniform velocity and thereafter along an arcuately formed surface where, due to the existence of different coefficients of sliding friction between the mixture fractions, disparate velocities are achieved by the respective particles whereby particles of the respective fractions are separately collected on a velocity basis. The described apparatus utilizes a slide surface of different material and/or a water spray to produce the disparate velocities between the particles of the respective mixture fractions. Deflector plates of various forms may be employed to prevent contamination of the clean product fraction due to bouncing of materials of the waste product fraction from the slide surface.

Abstract: An immobilized hapten reagent for use in a specific binding assay for the determination of a hapten or binding analog thereof in a liquid test sample and methods for preparing and using the immobilized hapten reagent. The immobilized hapten reagent comprises a hapten moiety covalenty linked substantially only to the external surface of a gel particle. The immobilized hapten reagent is prepared by forming a reaction mixture comprising the hapten moiety and the carrier material in a nonswelling solvent wherein the gel particle is substantially impervious to the hapten moiety and wherein an analytically insignificant amount of the hapten moiety is nonspecifically bound to the gel particle. The immobilized hapten reagent is characterized by being substantially stable in aqueous solutions and exhibits an insignificant amount of leakage of the hapten moiety into a liquid test medium.

Abstract: A composite membrane is disclosed having a microporous support which is coated with a UV curable polymer composition having a sufficiently high viscosity to prevent pore filling upon coating and curing. A process for making and a process for using the membrane is also disclosed.

Abstract: An immobilized hapten reagent for use in a specific binding assay for the determination of a hapten or binding analog thereof in a liquid test sample and methods for preparing and using the immobilized hapten reagent. The immobilized hapten reagent comprises a hapten moiety covalently linked substantially only to the external surface of a polyacrylamide gel particle. The immobilized hapten reagent is prepared by forming a reaction mixture comprising the hapten moiety and the carrier material in a nonswelling solvent wherein the gel particle is substantially impervious to the hapten moiety and wherein an analytically insignificant amount of the hapten moiety is nonspecifically bound to the gel particle. The immobilized hapten reagent is characterized by being substantially stable in aqueous solutions and exhibits an insignificant amount of leakage of the hapten moiety into a liquid test medium.

Abstract: An insect controlling device and method which provides an environment within foraminous barrier to which at least certain fertilized female insects will be attracted to deposit their eggs, and in the barrier assuring wasting of the thus deposited insect eggs. The barrier may take a number of different forms for selectively controlling various species of insects, such as fruit flies, house flies, mosquitos and the like. The barrier may serve the dual function of insect control and predatory creature food supply, such as a bird feeder, fish feeder, or the like. For mosquito control the barrier prevents hatched mosquito larva or mosquitos from escaping a body of water in which the mosquitos may incubate.

Abstract: Apparatus and method for scrubbing gases such as flue gases by subjecting the gases to a shower of gas scrubbing solid particulate material. The scrubbing is desirably effected in a downwardly extending passage leading from the top of a stack from which flue gases are diverted into the top of the passage. The aggregate mass of the solid particulate scrubbing material shower may be great enough to cause down draft for improved stack draft. The particulate material is reconditioned after separation from the cleansed gas and reused in the gas scrubbing cycle. Reconditioning of the particulate material in a liquid also effects wetting of the material for improved scrubbing action. The liquid of the particulate material reconditioning bath may be filtered or otherwise reconditioned and recycled. The recycled material may agitate the spent gas scrubbing solid particulate material for improved reconditioning of the material.

Abstract: A flavin adenine dinucleotide (FAD) derivative of the formula: ##STR1## wherein n is an integer from 2 through 10, and preferably is 6. The derivatives are intermediates in the preparation of FAD-labeled conjugates useful as reagents in specific binding assays for determining ligands (e.g., antigens and haptens) in liquid media such as serum. Also provided are certain FAD-labeled conjugates, particularly an FAD-theophylline conjugate.

Abstract: Labeled conjugates of the formula: ##STR1## wherein Riboflavin--Phos).sub.2 Ribose represents the riboflavin-pyrophosphate-ribose residue in flavin adenine dinucleotide (FAD), n=2 through 6, and --CO)L is a specifically bindable ligand, or a binding analog thereof, and is preferably an iodothyronine such as thyroxine, bound through an amide bond; and intermediates produced in the synthesis of such FAD-labeled conjugates. The FAD-labeled conjugates are useful as labeled conjugates in specific binding assays for determining the ligand or a specific binding partner thereto in liquid media such as serum.

Abstract: Novel compounds having the structural formula ##STR1## wherein R.sub.1 is hydrogen, i-propyl, phenyl or a substituted phenyl having the structure ##STR2## wherein R.sub.2 is halogen, methoxy, lower alkyl, nitro, trifluoromethyl, acetamido, or sulfonamido and their acid addition salts, are useful for treatment of cardiovascular disorders such as cardiac arrhythmia, hypertension, and angina pectoris. Methods for preparation and use of these compounds are described.

Abstract: Conjugates of the formula: ##STR1## wherein Riboflavin-(Phos).sub.2 -Ribose represents the riboflavin-pyrophosphate-ribose residue in flavin adenine dinucleotide (FAD), n equals 2 through 6, Y is hydrogen or trifluoroacetyl, and .beta..sup.1 and .beta..sup.2 are, independently, hydrogen or iodine; and intermediates in the synthesis of such FAD conjugates. The FAD-iodothyronine conjugates, particularly where the iodothyronine is thyroxine, are useful as labeled conjugates in specific binding assays for determining the iodothyronine in liquid media such as serum.

Abstract: An extensible rollup device comprises an elongated resiliently flexible tape body having a transversely arched bias which maintains the body relatively stiffly extended until bias at one terminal portion is overcome, such terminal portion provided with a utility element which avoids interferring with extensibility and is adapted to be rolled up in the device. The utility element may comprise a hook, a claw, weight, banner, etc. At its opposite terminal portion the body may have a handle. Rollup sensitivity control, rollup timing delay and rollup stop are provided.