Abstract: The invention relates to an improved energy exchange structure, comprising generally parallel plates, joined to define a hollow passageway for the generally circular flow of fluid between an inlet and an outlet, said plates undulating in cross-structure to define obliquely disposed crossing opposing valleys, and comprising multiple sets of generally parallel valleys and an involute disposition of said valleys.

Abstract: A fluid sensor for heat exchanger system includes a supporting device such as a tubular hose fitting for mounting the sensor in the system so that heat exchanging fluid circulated in the system comes into contact with the sensor. A window or sight glass is mounted in the supporting device along with corrodible separating means interposed between the sight glass and the heat exchanging fluid. A visual indicator such as a movable flap or a colored ball can be viewed through the sight glass when the separating means is ruptured or broken by corrosion. The viewing of the indicator provides an indication that the heat exchanging fluid has reached a certain corrosive state and requires replacement or treatment. In a preferred embodiment, the separating means is a metal diaphragm spaced from the sight glass.

Abstract: An improvement in circumferential flow heat exchangers of the type having a stack of heat exchange units each formed from first and second thin plates having grooves and ribs, wherein the grooves and ribs on facing surfaces of the first and second plates of a unit cross one another and cooperate to define a first flow path extending once about the interior of such unit through less than about one circumscription and grooves and ribs on facing surfaces of first and second plates of adjacent units cross one another and cooperate to define a second flow path, characterized in that the first and second plates of each unit are configured to provide the second flow path with a cross-sectional area exceeding the cross-sectional area of the first flow path.

Abstract: The electromagnetically accelerated impact oil well drill uses magnetic interaction of a ringing circuit formed in each of multiple accelerating coils with the electromagnetic field of charge rings around an expendable ice filled plastic drill head to accelerate the drillhead to hypervelocity with the drill head properly aligned to shoot down through an upper installed oil well casing. The oil well casing being fitted with a rapidly operating diverter valve to deflect effluent from the casing from blowing back into the electromagnetically accelerated impact drill.

Abstract: A vesicovaginal apparatus for ambulatory monitoring of the detrusor pressure exerted by a bladder includes a first transducer configured and dimensioned for insertion into and retention by the bladder of a wearer during ambulatory motion for sensing the total pressure within the bladder, and a second transducer configured and dimensioned for insertion into and retention by the vagina of a wearer during ambulatory motion for sensing the pressure within the vagina. A portable recorder in operative communication with the first and second transducers records the total pressure sensed in the bladder and the pressure sensed in the vagina, with the difference indicating the detrusor pressure exerted by the bladder of the wearer.

Abstract: A remotely controlled locator material dispensing apparatus for use within a conduit having an axis to mark specific conduit locations for later identification. The apparatus includes a control device located outside of the conduit for generating a plurality of control signals for controlling the operation of the locator material dispensing apparatus. The dispensing apparatus includes a first structural unit having a source of locator material to be dispensed onto an interior surface of the conduit. The first structural unit is connected to the control device for receiving the control signals therefrom, and for dispensing the locator material from the first structural unit onto the interior surface of the conduit in accordance with the received control signals. A monitor is positioned within the conduit for locating the specific conduit locations and monitoring the dispensing of the locator material.

Abstract: This invention relates to a sewage sludge treatment system resulting in an oxygenated and/or ozonated treated sludge containing substantially no pathogens. The system includes apparatus and a process for mascerating raw sludge, adjusting the pH to about 2.5 to about 3, adjusting the solids content to about 2.5% to about 4%, adjusting the temperature, if necessary, to about 20.degree. C. to about 40.degree. C., mixing an oxygen-rich gas, such as oxygen and/or ozone with the sludge as the sludge is mixed or recirculated through a hyperbaric vessel and simultaneously injecting the oxygen-rich gas into a combination gas and sludge mixing and dispersing assembly in an upper portion of the hyperbaric vessel. Such injection causes mixing of the gas and sludge and dispersement of such mixture in a plurality of streams to atomize and oxygenate the sludge.

Abstract: A method for determining whether a woman with gross cystic disease will develop breast cancer is provided. The method comprises analyzing human breast cyst fluid for the presence of a unique factor which has a retention time on an Amino Carbohydrate HPLC column of between about 6.4 minutes and about 6.7 minutes. The presence of this factor is diagnostically predictive for breast cancer.

Abstract: A fluid sensor for heat exchanger system includes a supporting device such as a tubular hose fitting for mounting the sensor in the system so that heat exchanging fluid circulated in the system comes into contact with the sensor. A window or sight glass is mounted in the supporting device along with corrodible separating means interposed between the sight glass and the heat exchanging fluid. A visual indicator such as a movable flap or a colored ball can be viewed through the sight glass when the separating means is ruptured or broken by corrosion. The viewing of the indicator provides an indication that the heat exchanging fluid has reached a certain corrosive state and requires replacement or treatment. In a preferred embodiment, the separating means is a metal diaphragm spaced from the sight glass.

Abstract: An offset strip fin for use in compact automotive heat exchangers is disclosed. The offset strip fin has multiple transverse rows of corrugations extending in the axial direction wherein the corrugations in adjacent rows overlap in order that the oil boundary layer is continually re-started. The fin dimensions have been optimized in order to achieve superior ratio of heat transfer to pressure drop along the axial direction. In one aspect, an compact concentric tube heat exchanger has an offset strip fin located in an annular fluid flow passageway located between a pair of concentric tubes. The preferred range of lanced lengths is determined to be between 0.035" to 0.075" for periodically developed flow. Maintaining the lanced length in the regime of periodically developed flow is advantageous in that it gives a higher heat transfer coefficient than is achievable with fully developed flow.

Abstract: An apparatus for installing a liner within a service pipe having an access end and a terminal end wherein the terminal end is transversely connected to a main pipe for allowing fluid to flow therebetween. The apparatus includes a flexible tubular member having a leading end and a trailing end. The leading end includes a flexible retainer secured thereto for being positioned within the main pipe proximate the service pipe terminal end. The flexible tubular member is impregnated with a thermosetting resin which cures after the flexible tubular member is positioned within the service pipe. Guiding and forcing members are provided for positioning the flexible tubular member within the service pipe such that the flexible retainer is seated within the main pipe proximate the service pipe terminal end and the trailing end is positioned proximate the service pipe access end.

Abstract: A brake is provided for sash windows. The brake comprises a frame having symmetrical and opposed arms, each arm comprising an outwardly facing brake pad area and inwardly, downwardly facing ramps. A wedge member is slidably received between the arms. The ramp and wedges cooperate to spread the arms as the wedge member is withdrawn from the frame.

Abstract: A load bearing replaceable wear strip for use between the guides and slides in a clamp attachment for use on a lift truck. Each wear strip is C-shaped in cross section and is positioned in and matches the surfaces of each guide and extends substantially the entire length of the guide. The strip is telescopically movable in and out of the slide for replacement. A releasable retainer is connected between the wear strip and the guide.

Abstract: A self-contained theft and vandalism deterrent system for equipment security includes sensors (12) for detecting conditions to which an alarm (24, 26, 28, 50) is responsive. The analog signals from the sensors (12) are serially delivered by a multiplexer circuit (16) when they are then directed to a network (20) for conversion to digital signals. The digital signals are delivered to a micro processor (22) where the signals are evaluated to determine if an alarm condition exists. The sensing means (12) include sound and vibration detectors for monitoring the ambient envelope. The micro processor (22) includes built in reprogramming and comparator circuits for varying the level at which a given condition will trigger an alarm response.

Abstract: A remotely controlled locator material dispensing apparatus for use within a conduit having an axis to mark specific conduit locations for later identification. The apparatus includes a control device located outside of the conduit for generating a plurality of control signals for controlling the operation of the locator material dispensing apparatus. The dispensing apparatus includes a first structural unit having a source of locator material to be dispensed onto an interior surface of the conduit. The first structural unit is connected to the control device for receiving the control signals therefrom, and for dispensing the locator material from the first structural unit onto the interior surface of the conduit in accordance with the received control signals. A monitor is positioned within the conduit for locating the specific conduit locations and monitoring the dispensing of the locator material.

Abstract: A plate and fin type heat exchanger is disclosed for cooling automotive engine oil, transmission fluid and power steering fluid. The heat exchanger is formed of a plurality of stacked plate pairs with louvered fins located therebetween. The plate pairs are formed of two elongate identical plates located face-to-face and having planar central portions, raised co-planar peripheral edge portions joined together, and co-planar end bosses with openings therein to form flow headers when the plate pairs are stacked together. The planar central portions have a plurality of uniformly spaced-apart, on-overlapping blunt projections joined together along a common plane with the peripheral edge portions. The projections are symmetrical and provide uniform flow through the plate pairs.

Abstract: A carton clamp load having a pad on the inner side for clamping a load, a first spring beam positioned outside of the pad and supported from its back end, and a second spring beam positioned outside of the first beam and supported at its back end. A uniform distribution of load is provided by supporting the front end of the pad adjacent the front ends of the first and second beams and supporting the back end of the pad vertically from the first beam and horizontally from the second beam.

Abstract: A biologically active agent extracted from female breast cyst fluids displays anti-hypertensive activity in mammals. The agent is also useful in the treatment of congestive heart disease, atrial fibrillation and idiopathic edema in mammals.

Abstract: A self-locking threaded member which may be internally or externally threaded at least along a portion of its surface includes an aperture provided longitudinally along the axis of the member but spaced radially from the center thereof. The aperture is preferably located such that a portion thereof passes through adjacent flanks of the threads and includes a portion which is radially positioned to pass through the base of the valleys. The aperture receives a locking member in the form of a pin which extends axially of the fastener and is of a length to extend across at least two adjacent crests and is preferably spaced from the lead threads. The locking member operates as a wedge to cause an increase in the friction between the mating threads opposite the position of the locking element. Various forms of locking elements may be used, such as plastic or metal. Various configurations are disclosed as well as a relatively simple method to make the fastener.