Abstract: A flotation device for attachment to a small object to prevent the object from sinking if it is dropped into a body of liquid and for allowing the user to quickly and easily retrieve it. The device comprises a float formed of buoyant material and having a longitudinally oriented opening therethrough, a lanyard having its free ends attached together and fixed within said opening so as to form a loop portion about the float, and a spring-biased clip attached to the loop and attachable to the object to be prevented from sinking in a pool of liquid.

Abstract: Glasses such as bifocals, which have refractive lenses which are rotatable at least between two positions. A manual control rotates the lenses such that if bifocal, the relatively small, high magnification zone of each lens can be moved to a high position opposed to the usual low position of fixed bifocals. The user is spared the necessity of holding the head at an awkward posture when viewing overhead objects.

Abstract: A comfort adapter for electronic collars that replaces the standard post electrodes normally found on electronic training collars with a plurality of acorn nut electrodes. This design ensures proper electrical contact with the dog's skin while increasing the comfort of these collars on small dogs, which have smaller necks. The adapter can be utilized with different types of electronic training collars, such as those used to facilitate training, to curb aggressive behavior and barking, and to confine dogs by means of an invisible fence.

Abstract: A drive apparatus for converting a substantially linear driving force to a rotary propulsive force, the apparatus including a pedal assembly for accepting a substantially linear drive force and fixed structure assembly for converting the substantially linear drive force to a rotary propulsive force.

Abstract: A microwave or terahertz and neutron radiation type detector, which uses an orbitron as a radiation source. The detector may have a polarity switching apparatus to enable the orbitron to selectively change from between short wave to neutron emission functions. A highly compact and lightweight identifier of explosives and other chemicals, which may be so small and light as to be hand held, and which is effective at stand-off distances, is thereby provided.

Abstract: A musical instrument case comprising a body which defines an outer and inner surface, first and second members, and a support layer affixed within the inner surface of the body and a microfiber layer affixed to the support layer.

Abstract: A lens particularly suited to elongated grooved lens holders such as heat sinks for light emitting diodes. The lens may have a curved surface which projects light in rectangular beams and a radial flange for engaging grooves of a grooved lens holder. Curvature is that of a flattened or compressed sine wave, with less than one full wave being formed along the lens. In one aspect of the invention, the crest of the wave, which would ordinarily be domed, may be flat. The radial flange has straight sides to enable contiguity when arrayed in abutment as well as for cooperating with the grooves of the lens holder.

Abstract: A pet utility device for reversibly converting from a pet bed to a pet carrier or pet seat, the device comprising a shell portion, wherein the shell portion includes lateral portions, a rear portion, a bottom portion, shell gusset portions, and sealable flap portion; a pad portion, for detachable attachment to a portion of the shell portion wherein the pad portion includes pad gusset portions; sealing device located on the periphery of the lateral portions, the sealable flap portion, and the bottom portion of the shell portion; wherein when the sealing device is utilized during the reversible conversion from a pet bed to a pet carrier or pet seat, the bottom portion engages the lateral portions such that the shell gusset portions and pad gusset portions retract and fold-up upon themselves thereby sealing the bottom portion of the lateral portions and the sealable flap portion to the lateral portions.

Abstract: An improved way of using radiographic imagery to locate inclusions within concrete. Radiographic film is placed on one side of a concrete structure and X-rays are transmitted towards the film from the other side. A target which is selectively radiographically impervious is interposed to generate location indicia on the film. Once developed, the film may be used to generate an image display such as a paper bearing indicia from the film or may be used directly to mark the location of inclusions on the concrete. The target may comprise a metallic plate with a viewing window and location indicia rendered in radiographically impervious material to establish measurement indicia in the final film image.