A dynamically tuned gyroscope having a single gimbal has torsion flexures with torsional stiffnesses such that, at its tuned speed, the gyroscope is insensitive to angular vibration at a frequency of twice the rotor rotational speed. The drive shaft is connected to a first torsion flexure having an effective torsional stiffness K.sub.1 of zero, K.sub.1 being made zero by the use of ball races or pivots, by known mechanical methods such as over-center or toggle spring action, or by the use of mag...

A method for dynamically scanning an image is disclosed. The present invention substantially improves the quality of the image according to specific distribution of the gray levels. In one embodiment, an image is first scanned using a set of parameters to generate a first image. The compositional distribution of the first image is then analyzed. If a predetermined amount of the compositional distribution of the first image does not lie within a predetermined range, then at least one parameter is...

A dynamically configurable operating system is achieved by providing a module sub-system which intercepts requests by processes to access a module in the operating system and determines whether the module has been loaded in the kernel memory and linked the other modules located in the kernel memory and installed in the appropriate table. If the module has been into the kernel memory, and installed the module sub-system grants the requesting installed process access to the module and processing c...

A brushless DC motor including a housing having an end cap secured thereto. The housing encloses a rotor, a stator and a rotationally displaceable commutation board having sensors secured thereon and spaced around the periphery of the rotor. An external rotational force is applied to the commutation board for displacement of the sensors to various positions whereby varying feedback signals are generated by the positioning of the sensors relative to the rotating rotor. The commutation board is se...

Thermoplastic compositions of matter useful as gasketing materials as well as flexible boots and seals which are soft, have low compression set and high tensile. The compositions comprise a polyolefin resin and at least two different rubbers, one of which is vulcanized to a fully cured state by a cure system which leaves the other rubber(s) unvulcanized. The preferred embodiment comprises a blend of polypropylene and ethylene vinylacetate as the polyolefin resin component, EPDM as the uncured ru...

A shaker assembly for reducing vibrations in a vibrating structure includes an eccentric mass which is driven at a selected frequency and which drives a shaker assembly. The resonant frequency of the shaker assembly is controlled by a pair of pneumatic springs so as to reduce the vibrations of the vibrating structure. Force damping is provided by a plurality of double acting adjustable air dashpots.

A dynamic balancing device for the mass production of rotating unbalanced workpieces, wherein a counterbalance element is attached to each workpiece during the working procedure to compensate for the unbalance. The counterbalancing effect is preferably applied perpendicular to the axis of workpiece rotation, and in the same plane as the center of gravity of the workpiece unbalance to avoid runout of the workpiece during the machining process.

An adjustable printhead-carrying yoke for a printer which permits dynamic adjusting of the printhead's fore and aft and skew positions. There is a fixed yoke portion carried by the printer and a movable yoke portion carrying the printhead. There is also fore and aft adjusting apparatus for moving the movable yoke portion thereby adjusting the printhead's fore and aft position while the printhead is printing and skew adjusting apparatus for moving the movable yoke portion thereby adjusting the pr...

A golf club, suitable as a driver or a wood, with a pair of elongated strakes on the bottom that extend back from the ball impacting surface in a converging pattern from locations astride the sweet spot so as to act as skid runners and also dynamically stabilize the sweet spot, reduce the gear effect, and generate longer and more accurate shots.

A method of discriminating between linear and nonlinear regions of measured data is based upon two hypotheses, one of which is a hypothesis that a response is merely a result of inherent randomness and the other of which is a hypothesis that the response is a result of a true nonlinear change greater than a value M. It is also based upon a relative cost between accepting the latter hypothesis when the former is true versus accepting the former hypothesis when the latter is true. A resulting prob...