Abstract: This invention presents a flexible power tool in which a flexible drive is utilized to permit the power supplying end to be angularly displaced from the work performing and during powered drive without inherent wobble, which is achieved first by pivotally connecting the power supplying end to the work performing end through a spring biasing device which resists the angular movement of the two ends during powered drive and second by utilizing a unique differential drive shaft in which the two pivoting differential axes are intersecting and coplanar, and the shaft is mounted in the tool in such manner that the coplanar axes can float into alignment with the pivotal axis between the ends of the tool.

Abstract: A tooth-block for fabrication of dentures, including a horizontally deformable bar of rectangular cross-section provided along its upper margin with outwardly projecting retentions, each retention having an individual artificial tooth securely mounted thereon in spaced separation from the bar, each retention and its respective tooth being selectively positional with respect to the bar and to each other tooth.

Abstract: An animal litter device which includes a shell having a removable lid and an access aperture in the side of the shell, a disposable bag disposed in the shell and held in place within the shell by the lid, a ring secured to the bag in the vicinity of the aperture and having the inner portion of the bag within the ring cut away, and clips for securing the ring to the shell at the location of the aperture.

Abstract: A battery charger control device which senses the placement of a battery across control terminals and utilizes the voltage thereof to place into conduction a transistor which actuates a relay which turns on a battery charger, which thereafter, monitors the the charge condition of the battery as determined by the voltage supplied to a voltage following circuit from the control terminals, and which actuates an electronic switch after the elapse of a predetermined period of time after the battery has attained a fully charged condition as determined by the voltage of the battery as presented to the voltage following circuit.

Abstract: A battery charger control device which senses the placement of a battery across charging terminals and utilizes the voltage thereof to actuate a relay which turns on a battery charger, which utilizes a pulse generator to charge a capacitor over a period of several hours after the battery has been placed across the terminals, which monitors the charge condition of the battery as determined by the voltage across the terminals and which automatically and independently of the pulse generator applies charging current to the capacitor after the voltage across the terminals exceeds an adjustably preselected magnitude, and which utilizes the charge condition of the capacitor to turn off the battery charger after the lapse of a predetermined period of time or after the battery has become fully charged, whichever occurs first.

Abstract: A piece of jewelry which comprises an elongated length of fiberoptic material, prewound into a multilooped coil and cut at one radial point, each open end of the loop being clamped to a shell containing a source of illumination in such manner that the cut ends of the various loops are exposed to the source of illumination, whereupon the individual loops extending from the shell are cut at varying lengths to present a jewelry piece, which clings to the wearer by reason of the prewound stresses in the loops, and which emits multiple dots of light as the light is transmitted through the fiberoptic material to the unclamped ends thereof.

Abstract: Weight Distribution Measuring Instruments which provide accurate simultaneous readings showing how a patient's weight is distributed between the heels and balls of his feet whereby to provide clinical information to a physician as to whether or not an injury causes that patient to favor one leg or one portion of his leg unconsciously; this is accomplished by providing a base with two separate pairs of foot pads, one pair for each heel and ball of each foot, and by making the heel and ball positions mechanically adjustable with respect to each other to compensate for variations in foot size; a separate read out gauge is provided for and hydraulically coupled to each foot pad to provide an accurate reading of the weight presented to each pad; valves are provided to lock the readings of the gauges at any selected time.

Abstract: The invention comprises a means and method for punching medically acceptable holes in flexible catheter tubing through a manual punching device which includes an elongated shank sized for snug fitting disposition within the catheter tube and is provided with a pair of cooperating wedge-shaped elements which are driven against each other by manipulation of the device to drive a punch radially outwardly through the wall of the catheter tube and through a complimentary female die which is snugly disposed against the outer wall of the catheter tube.