Abstract: Liquid resin compositions that can be used in the manufacture of composite materials are described. A method of making a fiber-reinforced polymeric composite material comprises wetting a fibrous material with a liquid prepolymer composition comprising at least one (meth)acrylic monomer, at least one base, and at least one peroxy ester; and polymerizing the liquid prepolymer composition to form a fiber-reinforced polymeric composite material.

Abstract: Liquid resin compositions that can be used in the manufacture of composite materials are described. A method of making a fiber-reinforced polymeric composite material comprises wetting a fibrous material with a liquid prepolymer composition comprising at least one (meth)acrylic monomer, at least one base, and at least one peroxy ester; and polymerizing the liquid prepolymer composition to form a fiber-reinforced polymeric composite material.

Abstract: An apparatus for bidirectionally translating and positioning loads under tension includes a linear hydraulic actuator suspendible from a hoist such as a crane and is useable to support, raise and lower heavy loads in precisely controllable small incremental distances. The apparatus utilizes a strain-gauge type load cell positioned between an upper end of the actuator and an upper anchor connector eye suspendible from a crane. A digital display device operatively coupled to the load cell provides an accurate indication of static weight of a load supported by a load connector eye attached to a lower end of a piston rod protruding from the actuator, and accurate and immediate indications of any load weight deviation resulting from contact of a load with an obstruction while being raised or lowered. A pressure relief valve is provided to enable flow of hydraulic fluid from the actuator cylinder to a fluid reservoir to prevent inadvertent over-pressuring of the cylinder.

Abstract: An apparatus for bidirectionally translating and positioning loads under tension includes a linear hydraulic actuator suspendible from a hoist such as a crane and is useable to support, raise and lower heavy loads in precisely controllable small incremental distances. The apparatus utilizes a strain-gauge type load cell positioned between an upper end of the actuator and an upper anchor connector eye suspendible from a crane. A digital display device operatively coupled to the load cell provides an accurate indication of static weight of a load supported by a load connector eye attached to a lower end of a piston rod protruding from the actuator, and accurate and immediate indications of any load weight deviation resulting from contact of a load with an obstruction while being raised or lowered. A pressure relief valve is provided to enable flow of hydraulic fluid from the actuator cylinder to a fluid reservoir to prevent inadvertent over-pressuring of the cylinder.

Abstract: An electromechanical, remotely operated Auxiliary Hoist Control and Precision Load Positioner system and device is disclosed utilizing a Radio Frequency Hand Controller transceiver Unit distal to a Radio Frequency Hoist Controller Transceiver Unit for raising and lowering a large, heavy, bulky, fragile, or expensive piece of equipment by very gradual means to avoid hang ups that might otherwise destroy or seriously damage the equipment.

Abstract: An electromechanical, remotely operated Auxiliary Hoist Control and Precision Load Positioner system and device is disclosed utilizing a Radio Frequency Hand Controller transceiver Unit distal to a Radio Frequency Hoist Controller Transceiver Unit for raising and lowering a large, heavy, bulky, fragile, or expensive piece of equipment by very gradual means to avoid hang ups that might otherwise destroy or seriously damage the equipment.

Abstract: A self contained, compact, long term, ambulatory physiological recorder is designed for mounting directly to the body of a patient, immediately adjacent to the organ or system that is to be monitored, and is adhesively and covertly held there in place and comfortably under clothing by the very transducer, skin electrodes that detect the physiological information to be recorded, and thereby increasing continuity and decreasing artifact by obviating the need for numerous and cumbersome, hanging electrode leads as well as unsightly and cumbersome recorder pouches suspended from shoulder straps or belts.

Abstract: An ambulatory physiological computer recorder that includes multiple selective plug and play signal input conditioners, a microprocessor system with operating and analyzing software and a removable memory module for data storage. The removable memory module may consist of any non-volatile memory such as IC memory, magnetic memory, optical memory or magneto-optical memory. The removable memory module used in the recorder excludes operating software; the purpose of the removable memory module in the recorder is only to receive and store acquired data. The recorder uses an alpha-numeric LCD display with control buttons for user interface to enter patient ID and recorder functional perimeters. Both operational and selective analysis software is resident in the microprocessor EEPROM memory. Software is installed in the recorder by transfer from an external source via standard serial or parallel links with applicable connectors, or by a plug-in EEPROM.

Abstract: A full N-key rollover capability information entry device includes first and second sets of intersecting light guides oriented at an angle to one another which may comprise a mesh of waveguides that together form a self-supporting planar sheet of a substantially transparent material at the wavelength of light introduced into one end of at least one of the first and second sets of light guides. This permits each intersection to comprise a common portion of both a light guide of the first set and a light guide of the second set that intersect at that intersection. Detection of changes in the intensity of the light in at least one of the sets of light guides in response to key actuation that blocks a portion of the light at a certain intersection is indicative of that actuated key.

Abstract: A system for monitoring the operation of a cardiac pacemaker and the response of the patient to the pacemaker includes an ARRHYTHMIAGRAPH that displays the occurrence of pacemaker signals in relation to overall QRS cycles and analyses the relationship of pacemaker signals to QRS cycles. A predetermined set of values are used to compare against measured QRS and pacemaker values. The result of the comparison is a determination of whether a QRS was initiated by a pacemaker signal. This determination is conveyed to display means where an ARRHYTHMIAGRAPH is used to illustrate the result in a visually discernible manner.

Abstract: The invention is a method of manufacturing a substrate and, particularly, of manufacturing a release paper. The method comprises coating a release paper base with a primer coat, and curing the primer coat. The cured primer coat is then overlayed with a heat-curable or an ultraviolet-curable silicone coating which is, in turn, cured with heat or ultraviolet light. A product manufactured in accordance with this method enables a facing adhered to this release paper to be removed relatively easily from that release paper.

Abstract: An ECG analysis system is provided that automatically scans and classifies in sequence a plurality of long term recorded patient cassette tapes by first identifying and then inserting each tape cassette into a cassette player for the analysis system, and finally removing each tape cassette from the analysis system once the analysis is complete. The system includes bar code reading and writing devices that are integrated with the analysis system to positively identify the patient associated with the tape recording. An automatic multiple cassette loader is disclosed wherein an elongated, rigid transport member having a transport slot cut along a substantial portion of its longitudinal axis is used to guide a detent armature, driven by a worm drive, in placing cassettes within a cassette player. The detent armature protrudes through said transport slot and pushes a single cassette out from the bottom of a stack of cassettes along the longitudinal axis of the transport slot and into the cassette player.

Abstract: A time saving automatic screening system for detection, measurement, analysis and plotting of electrocardiographic (ECG) signals employing arrhythmia analysis programs on long term ambulatory (Holter) recordings to assess the ECG signals and categorize the recorded data as either artifact, ventricular ectopic, superventricular ectopic, unknown or normal and to calculate a level of confidence that the category as chosen is a correct assessment. A system is disclosed that thresholds the occurrences of each category as well as the level of confidence to determine if significant abnormalities have occurred in the recording process, the hearts arrhythmia, or the heartbeat morphology. The method and apparatus disclosed make it possible to identify and screen out entire long term (Holter) ECG recordings containing no significant abnormalities in the hearts arrhythmia or the beat morphology.

Abstract: The invention is a method of manufacturing a substrate, and particularly of manufacturing a release paper. The method comprises coating a release paper base with a primer coat, and curing the primer coat. The cured primer coat is then overlayed with a heat-curable or an ultraviolet-curable silicone coating which is, in turn, cured with heat or ultraviolet light. A product manufactured in accordance with this method enables a facing adhered to this release paper to be removed relatively easily from that release paper.

Abstract: A single-beam CRT printer, used as a validator record of electrocardiographic data played back from a magnetic tape at a much higher speed than the speed at which it was recorded, includes a scan circuit for generating signals for steering the beam alternately through an ECG scan pattern and through a character scan pattern and further includes a character generator for modulating the intensity of the beam in relation to the instantaneous location of the beam within the character scan pattern to cause the beam to print characters, the intensity of the beam and its linear velocity being increased during execution of the character scan pattern to permit the characters to be printed at such a high speed that only an insignificant part of the ECG plot is omitted while the characters are being printed.

Abstract: A support member mounted on an antenna boom includes a pair of upstanding spaced stanchions for supporting a signal feedthrough wire therebetween. An antenna element is pivotally mounted to the support member and has a bifurcated end which conductively connects with the feedthrough wire when the element is rotated from a folded closed position to an extended open position.