Abstract: A computing device includes a port to allow the computing device to connect to a network, and one or more processors, the one or more processors configured to execute code to cause the one or more processors to determine that a new waveform has been added to a repository connected to the computing device, perform a set of measurements on the new waveform, attach results from the measurements to the new waveform as metadata, and store the new waveform and attached metadata to the repository. A method of managing waveform data includes determining that a new waveform has been added to a repository, performing a set of measurements on the new waveform, attaching results from the measurements to the new waveform as metadata, and storing the new waveform and attached metadata to the repository.

Abstract: A test and measurement device has a communications port configured to connect the test and measurement device to a network, a memory, and one or more processors configured to execute code to cause the processors to receive an original waveform through the communications port, the original waveform having an identified file type, store the original waveform in the memory, the original waveform having an original file size, compress the original waveform to a compressed waveform having a compressed file size that is smaller than the original file size, notify one or more users that the compressed waveform is available, and upon receiving a request, transmitting the compressed waveform to a user device.

Abstract: Error diffusion is performed using a Floyd-Steinberg-like approach. A integer-representation of a running error is compressed by storing only its most significant bits and returning any remainder to the error diffusion processor. The running error is shifted to the right until only the desired number of significant bits remain, and this compressed error is stored. Any portion of the original running error that is lost due to the shifting is treated as a remainder and is returned to the error diffusion processor for use in calculating an adjusted current pixel value. The amount of the shift is retained in compressed form to keep track of the number of shifts needed to form a truncated running error from the compressed running error.

Abstract: Error diffusion is performed using a Floyd-Steinberg-like approach. A integer-representation of a running error is compressed by storing only its most significant bits and returning any remainder to the error diffusion processor. The running error is shifted to the right until only the desired number of significant bits remain, and this compressed error is stored. Any portion of the original running error that is lost due to the shifting is treated as a remainder and is returned to the error diffusion processor for use in calculating an adjusted current pixel value. The amount of the shift is retained in compressed form to keep track of the number of shifts needed to form a truncated running error from the compressed running error.

Abstract: A hyperflexion plate in the form of a hexagonal plate having a rail extending from the bottom surface of the plate for insertion within the track formed in a universal hip support plate for supporting a patient in the lateral decubitus position for surgery of the hip. The hyperflexion plate allows positioning of the anterior support at an angle substantially larger than the limited angle defined by the track formed in the universal hip support plate.

Abstract: A self-adjusting clamp for use in medical applications allows a support post to be tightly retained against a substrate such as an operating table. A single control knob provides clamping facility to the support post as well as to the hooked ends of the clamp that engages the side edges of the operating table.

Abstract: The invention is a rigid, hollow core, low-density ball sealer designed to perform effectively in hostile well environments. It temporarily seals perforations inside cased wells at temperatures up to 400.degree. F. (204.degree. C.), at hydrostatic pressures up to 20,000 psi (137 Mpa), and at differential pressures across the perforations up to 1,500 psi. Ball densities may range from 0.80 to 1.3 gm/cc (or higher). It can withstand the degradation effects of solvents common to oil and gas wells during a workover. Nominal changes in ball density occur during a 24-hour period when exposed to a hostile well environment. The ball sealer is comprised of two pieces made of a high strength material that snap together to form a hollow-core sphere. If necessary, adjustments to ball density can occur subsequent to manufacturing of the ball pieces.

Abstract: Apparatus for adjustably positioning human joints such as knees for surgical operating procedures having a rigid frame releasably attachable to an operating table or the like, which frame is provided with one or more rods to moveably support a carriage that can be releasably locked in position and which adjustably supports a boot or the like which can be releasably locked in position on the carriage.

Abstract: Ball sealers comprising a polyetheretherketone are introduced into a well to seal well perforations and divert fluid therein. In the preferred embodiment the ball sealers have a density less than the treating fluid.

Abstract: A portable dental apparatus. A main housing includes a plurality of wheels mounted therebeneath. A control panel on the main housing includes a variety of controls for operating a plurality of dental tools removably and suspendedly mounted to a holder in turn movably mounted to the main housing. A storage cavity formed in the housing allows storage of the holder and tools when the portable dental apparatus is in a transport state. The tools are connected by a plurality of lines to a plurality of drive and power components located in the interior of the main housing. A lid hingedly mounted atop the control panel may be opened revealing the controls for the tools. An X-ray display screen and amalgamator are provided respectively on the lid and control panel.A modular vacuum unit with a built in cooling fan and thermo protector is also provided. Additionally, the portable dentist apparatus includes an improved pressurized air and water distribution manifold and an improved waste water storage receptacle.

Abstract: A portable dental apparatus. A main housing includes a plurality of wheels mounted therebeneath. A control panel on the main housing includes a variety of controls for operating a plurality of dental tools removably and suspendedly mounted to a holder in turn movably mounted to the main housing. A storage cavity formed in the housing allows storage of the holder and tools when the portable dental apparatus is in a transport state. The tools are connected by a plurality of lines to a plurality of drive and power components located in the interior of the main housing. A lid hingedly mounted atop the control panel may be opened revealing the controls for the tools. An X-ray display screen and amalgamator are provided respectively on the lid and control panel.

Abstract: A control system for a pump includes a level sensor switch that is positioned along a production string in an oil well shaft (S). The level sensor switch is protected from damage by inner and outer housings. A control circuit responsive to the level sensor switch is also provided. The control circuit includes an adjustable timer that is located at ground level remote from the harsh environment of the oil well shaft (S). The timer controls the operation time of the pump during each pumping cycle.

Abstract: A control system for a pump includes a level sensor switch that is positioned along a production string in an oil well shaft. The level sensor switch is protected from damage by inner and outer housings. A control circuit responsive to the level sensor switch is also provided. The control circuit includes an adjustable timer that is located at ground level remote from the harsh environment of the oil well shaft. The timer controls the operation time of the pump during each pumping cycle.

Abstract: A phone jack assembly comprising a piggy-back array of two phone jack housings made of moldable dielectric material and having integral walls defining respective axial cavities wherein a phone jack plug may be inserted; and a plurality of pairs of wire terminals extending downwardly from the lower housing of the array for insertion into respective apertures in a connecting device. Each of the wire terminals is recessed within a respective groove molded into the outer side surfaces of the housings and one of each pair has a portion extended into a cavity of one of the housing for electrical engagement with a portion of a phone jack plug inserted into the cavity. Also each of the wire terminals is provided with a laterally bent portion for pressingly engaging side wall surfaces of the respective groove to support the wire terminal when being inserted into or withdrawn from said respective aperture in the connecting device.

Abstract: A fiber optic connector comprising a coupling shell encircling a glass end portion of a bushing disposed axially within an encircling ferrule having an end portion extended axially out of the shell and terminating in a dish-shaped end surface provided with a central aperture through which an optical fiber element extending axially through the glass end portion of the bushing and the ferrule protrudes to terminate at a planar end surface spaced axially from the aperture, the dish-shaped end surface being curved concavely and continuously from the aperture radially to a circular rim which is spaced a greater axial distance from the aperture than the planar end surface of the optical fiber element.

Abstract: A support member for apertured supporting surfaces having at least three aligned equally spaced holes or apertures penetrating through said supporting surfaces is provided with means for locking said support member with respect to said supporting surfaces so that the support member will not become disengaged from the supporting surface in ordinary usage.

Abstract: A housing for panel mountable modules and comprising a base having dependent therefrom yieldable support pedestals disposed for pressing resiliently against an adjacent surface of a panel and latching projections disposed for engaging an opposing surface of the panel and, in cooperation with the support pedestals, locking the thickness of the panel therebetween.

Abstract: A fiber optic connector assembly comprising a tubular coupling device having an end portion disposed for encircling an end portion of a fiber optic cable, and a slidable apertured spacer axially disposed within the coupling device. The spacer has a central aperture disposed for alignment with a polished end surface of a filamentary light conductor in the cable, and has an annular surface encircling the aperture for abutting an end surface of an opaque sheath encircling the light conductor.