Abstract: A combustible fluid operated engine free of lost momentum during piston reciprocation has respective series of cylinders and pistons on counter-rotating carrier wheels. Fuel is injected into the cylinders from the pistons. The carrier wheels are variably spaced relatively to vary the combustible fuel compression. The power output is variable.

Abstract: A maximum air flow, minimum space requirement household room air purifier comprising an enclosure arranged to stand on a room floor in a room corner formed by room walls and having a face opening toward the room, an arcuate air purifying HEPA filter, a motorized fan passing room air through said enclosure and said filter in room air purifying relation, and a filter unit comprising a frame carrying the filter for snug interfittment with the enclosure face opening. The filter frame is provided with a reversible self-latch for removably securing the filter to the face opening and a seal against unpurified air by-passing the filter.

Abstract: An increased efficiency, more durable pool leafing tool, and method, for gathering leaves and other pool debris from a pool bottom wall has a handle, a handle-controlled basket of a water-pervious and leaf and debris-impervious plastic mesh pocket having a closed end and an open end and a leaf and debris receiving volume therebetween formed by longitudinally extended sidewalls. The sidewalls provide an open end edge margin that is attached to a supporting frame. A pocket stay structure has one or more spring elements bent on themselves about the pocket closed end. The stay structure extends attached to the sidewalls for substantially the sidewall longitudinal extent length for biasing the mesh pocket volume against collapse onto itself in its empty or leaf and debris-filled condition to facilitate both gathering and disposal of leaves and debris from swimming pools.

Abstract: A resin free and solder free electrical connection in a disk drive suspension interconnect is provided including an electrical connection between conductive traces of a first metal layer and a second metal layer with a conductor pin having electrical connection with the outer surfaces of each metal layer and free of any solder and resin in making the connection.

Abstract: A disk drive suspension comprising a metal member having a base portion, a distal portion and a spring portion therebetween is provided with a second spring of usually greater thickness that is parallel with and spaced from the first spring, and supported in place by base and distal plates of a stiffener attached to the metal member base and distal portions. The second spring connector is much reduced in width relative to the adjoining plates.

Abstract: A disk drive electrical interconnect assembly and additive method therefor. The interconnect assembly has a supporting or fifth layer of metal, a fourth layer of a polyimide precursor or a polyimide with a first face directed away from the fifth layer, a third layer directly attached to the first face and defining a first subset of one or more conductive trace pair members, a second layer on the third and fourth layers of a polyimide precursor or a polyimide with a second face directed away from the third layer, and a first layer directly attached to the second layer and defining a second subset of one or more conductive trace pair members in spaced, paired and laterally offset relation respectively with one or more of the first subset pair members.

Abstract: Cultivated field water is desalinated by a series of independent units that float on the water surface, taking up the saline water with a wick, evaporating the water from the wick in desalinating relation by concentrating incident solar radiation with a combination of a lenses and cooperating mirrors onto the upper end portion of the wick while the wick lower end portion is immersed in the field water, capturing the desalinated vapor resulting by condensing within the unit and returning the condensed, desalinated water to the field, and periodically renewing the wick by rinsing the salt from it at a cleaning station beyond the field.

Abstract: A disk drive suspension interconnect of a flexible conductive laminate with an electrically insulative layer and a pair of trace conductors supported thereon is shunted by having an insulative layer first portion supporting the trace conductors oppose a deflectable layer second portion free of the trace conductors and disposed beyond the first portion and carrying a shunt structure for connecting in parallel the trace conductors. The shunt structure conductive material is arranged on the second portion to contact in shunting relation the trace conductor pair in the deflected condition of the second portion and further has adhesive arranged thereon to secure the first portion in place.

Abstract: A low stiffness, high torsion disk drive suspension having reduced gram load change after backbending includes a laminate of a metal layer, a plastic film layer and a plurality of conductors, a spring portion, a base portion and a distal portion with contiguous discontinuities that reduce the vertical stiffness of the suspension with only a low reduction in torsion, and that limit gram load changes by preventing stretching of the plastic film that would otherwise accompany backbending of the spring portion of the suspension.

Abstract: An HGA dynamics tester and method are provided in which a shear mode piezo actuator having a dimensional change responsive to an input voltage while supported on a mass is coupled through an HGA support to impart movement to the HGA responsive to the actuator dimensional change.

Abstract: The invention provides a disk drive suspension. The suspension has a load beam and a flexure having a frame and a tongue portion having a base and a tongue. The flexure mounts one or more microactuators in opposed or offset relation for shifting the base of the flexure tongue portion relative to the flexure frame and thus positionally adjusting the tongue and the slider fixed to the tongue with respect to the disk that is in operating proximity to the slider.

Abstract: ESD is prevented in a disk drive suspension electrical interconnect having plural pairs of conductive traces supported by an insulative film by disposing a material having a lower resistivity than the insulative film but not so low that the conductive traces are shunted. The material is disposed in or on the film and is to be connected to ground.

Abstract: Disk drive suspension load beam and flexible circuit components are juxtaposed and properly located relative to each other before welding by a series of areally distributed locator structures that intersect across the common plane between the components in aligning relation.

Abstract: A disk drive suspension and method has a metal load beam and an electrical interconnect assembly. The interconnect assembly has an insulative layer, a read pair of forward and return path conductive traces, a write pair of forward and return path conductive traces that are supported by the insulative layer, preferably in offset relation across the insulative layer, and a metal layer for grounding and mounted on the insulative plastic layer in fixed spaced relation to the conductive traces to be between the interconnect assembly and the load beam. The metal layer shields the conductive traces from variations in impedance occasioned by varying distances between said electrical interconnect and said load beam.

Abstract: A low stiffness, high torsion disk drive suspension having reduced gram load change after backbending and method includes a laminate of a plastic film layer and a plurality of conductors in which the spring portion, the base portion and/or the distal portion are provided with contiguous discontinuities that reduce the vertical stiffness of the suspension with only a low reduction in torsion, and that limit gram load changes by preventing stretching of the plastic film that would otherwise accompany backbending of the suspension.

Abstract: A kite has a generally delta shaped sail and supporting frame and has increased flight stability through locally increased drag realized by providing an air-passing ring structure in a plane adjacent the kite sail. The ring structure is formed from continued extents of the kite sail extending rearwardly of the sail trailing edge, folded up into the ring structure.

Abstract: A disk drive suspension has a load beam with a base portion, a spring portion and a rigid portion to carry a flexure and slider in operative association with a disk. The spring portion is normally bendable between the base portion and the rigid portion. Welding of the spring portion to the base portion and the rigid portion tends to raise the temperature of the adjacent parts of the spring portion to temperatures above their annealed temperature and there is a loss of temper and thus spring properties in these adjacent parts. The invention limits the bending of the spring portion to a region between the base and rigid portion adjacent parts by stiffening the spring portion locally in these parts as with an edge rail. The non-railed region of the spring portion remains bendable and is far enough away from welding heat that it retains its temper and spring properties.