Abstract: An excavation apparatus having a mast, a sled slidably mounted thereon, a sled driving system for downcrowding and upcrowding the sled along the mast, and non-rotatable but extendable kelly sections that prevent slippage of the sled on the mast. An outer kelly section is attached to the sled, and an inner kelly section is extendable therefrom and retractable therein. A bushing maintains slidable alignment of the kelly sections on the mast. The inner kelly section is automatically powered into and out of the outer kelly section a distance proportional to the distance that the sled is downcrowded or upcrowded along the mast while preventing slippage. A rotary motor, attached to the sled, rotates a telescopic shaft housed within the kelly sections. A transmission secured to the lower end of the inner kelly section increases downhole torque. A boom connector downcrowds and upcrowds the mast for additional drilling depth capability.

Abstract: A suspension bar for a hanging file having coplanar longitudinal top and bottom portions and a longitudinal middle portion having an offset parallel to the coplanar longitudinal top and bottom portions. A traverse perimeter flare is around each notch. A plurality of small depressed sections in the longitudinal middle portion are expanded to prevent nesting of stacked suspension bars. The notches of the suspension bars are coated to reduce friction. Sheet metal stock need be only half the thickness of conventional flat suspension bar stock with the same load-supporting capacity when incorporated in a hanging file folder thereby lowering manufacturing cost of suspension bars and hanging file folders. This invention also includes a process for making the suspension bars and for installing the suspension bars in jackets at a high production rate, including automated production lines.

Abstract: A door condition sensor for a safe having a door. The sensor has a housing mounted on an inside surface of the door, frame engageable means for abutting the door frame, a driver rotatably mounted in the housing, analog signal generator mounted in the housing having a rotatable part driven by the driver, and spring for extending the frame engageable means that is slideably mounted and confined to linear displacement in the housing. The driver transforms displacement of the frame engageable means into rotational orientation of the driver. The generator produces analog signals corresponding to the rotational orientation of the rotatable part. A means converts analog signals from the generator to corresponding digital signals that are proportional to displacement of the frame engageable means. Memory means compares the displacement with a set point range thereby continually monitoring the condition of the door.

Abstract: A dry cementitious composition which when slurried with water produces an economical hydraulic cementitious slurry for closing abandoned wells. The dry cementitious composition is a cement/CKD blend as the major component with a weight ratio of parts cement to parts of CKD between about 2/3 and about 3/1. Hydraulic cementitious slurries when cured can produce hard cementitious bodies which will meet or exceed the API specification for a competent hard plug. A process for blending the cement and CKD during transit from the cement source to the off-load site without requiring further blending after off-loading. Methods are provided for determining the formulation having the cheapest cost per unit volume of hydraulic cementitious slurry thereby enabling competitive quotes based on cf of hydraulic cementitious slurry required.

Abstract: An excavation apparatus especially useful when mounted on backhoes and other lighter vehicles used in the construction industry. The excavation apparatus does not require a winch for letting out and retracting its cable nor a reel for storing retracted cable which reduces the weight of the excavation apparatus, lowers its cost while facilitating both operation and servicing. The apparatus has a kelly assembly housing which houses an outer kelly section, and an extendable innermost kelly section adaptable for attachment of a tool. More than one extendable kelly section can be used. A rotary table rotates the kelly sections. A support structure supports the rotary table and the housing. A frame allows the housing to slide relative to the frame in a direction parallel to the axis of the assembly. A downcrowd mechanism, supported by the frame, downcrowds the support structure relative to the frame.

Abstract: A decorative aggregate-containing cementitious slurry having decorative aggregate and cementitious matrix composition forms a monolithic structure when effectively applied to a freshly poured cementitious base and simultaneously cured therewith. The slurry and the base are cured for a time sufficient for producing the monolithic structure with a decorative aggregate-containing cementitious surface. The slurry produces a decorative aggregate-containing cementitious layer having a cured thickness effective for permanently securing the decorative aggregate therein with a portion of the decorative aggregate exposed. Various decorative surfaces are produced without requiring expensive hand broadcasting of the decorative aggregate, and without expensive surface grinding. Dry components of the slurry are decorative aggregate and decorative cementitious matrix blend.

Abstract: An ophthalmic device for dispensing of an eyedrop from a resilient eyedrop dispenser. The ophthalmic device has an upper body portion having a front portion, first and second lever arm members rigidly connected to the front portion and extending in a longitudinal direction therefrom with distal ends of the arm members being spaced apart. An opening in the upper body portion for receiving the eyedrop container with outlet pointing down. Squeezing the arm members together reduces the opening thereby dispensing an eyedrop. An alignment projection is attached to the upper body portion and has a lower distal end for resting on an user facial area, thereby facilitating maintaining the outlet of the eyedropper container in alignment with a recipient eye. Sighting apertures are also provide to further insure proper alignment over the eye. The ophthalmic device has a shape effective for producing by injection molding.

Abstract: Slide bars are used by musicians when playing string instruments to achieve different effects and sounds to stylize their musical compositions Existing slide bars, when not use, are usually removed, or rotate with difficulty around the finger, to continue play thereby interrupting play for a short, but discernible, period of time The slide bar devices and assemblies of this invention are easy to use and reduce down time to a non-discernible degree The slide bar device has a slide member with a longitudinal axis and an outer surface for contacting all of the strings of the string instrument. A ring member is attached to the slide member and adaptable for wear around any of the musician's fingers. The axis of the ring member is parallel to, and spaced away from, the axis of the slide member The center of gravity of the slide member is spaced away from, and radially outward of, the ring member.

Abstract: A lock for safes and other security devices is disclosed having a case mountable on the inside of a safe door. A locking bolt in a slidable relationship within an opening in the case, moves between locked and unlocked positions. A gate, constrained in slidable relationship by and with the locking bolt, normally prevents the locking bolt from moving out of the locked position. An internal case extension obstructs the gate, when the lock is not activated, preventing the locking bolt from moving towards the unlocked position. A camming member, pivotally attached to the locking bolt, repositions the gate allowing the locking bolt to move out of the locked position. A solenoid driven armature, linked to the camming member and connected to the locking bolt, pivots the camming member and moves the locking bolt to the unlocked position. The locking bolt is held in the locked position when not activated by a spring.

Abstract: A system for monitoring an electrostatic powder painting process having a conveyor line adaptable for transporting articles to be electrostatically powder painted sequentially through a plurality of zones in the process. For monitoring the usage of powder paint particles, or "powder", applied to the articles, the system senses the weight of the powder in the powder delivery apparatus and displays it in real time as a powder-weight function over a period of time. For monitoring the operation of the conveyor line transporting the articles, the system senses the conveyor line speed and displays it in real time as a line-speed function over a period of time. For monitoring the precleaning-surface activation of the articles, the system senses the pH of the cleaning-surface activation solution and displays it in real time as a pH function over a period of time.

Abstract: A system for monitoring an electrostatic powder painting process having a conveyor line adaptable for transporting articles to be electrostatically powder painted sequentially through a plurality of zones in the process. The monitoring system dispenses powder paint particles from a delivery container through a conduit to an electrostatic powder paint spray gun used for applying the powder paint particles to the articles in a painting zone, and senses the weight of the delivery container and powder paint particles therein with a scale device. The scale device generates a paint weight signal corresponding to the real time weight of the delivery container and powder paint particles therein. The monitoring system transmits the paint weight signal from the scale device to a computer-monitor adaptable for displaying the real time weight of the delivery container and powder paint particles therein as a container weight function over a predetermined period of time.

Abstract: Aluminum scrap containing a carbon-containing coating is cleaned with about 212.degree. F. hot water, and then decarbonized with about 1000.degree. F. superheated steam which produces a carbon-containing volatile from the carbon-containing coating and a decarbonized aluminum scrap. A spent steam and carbon-containing volatile gaseous mixture at about 212.degree. F. is contacted with a warm water filtrate at a nominal temperature of about 132.degree. F., recovered from the process which causes the spent steam to condensed. The condensate at about 212.degree. F. is separated from the carbon-containing volatile and the latter combusted. The combustion products can be used to preheat indirectly other stream in the process or to dry the decarbonized aluminum scrap at a temperature low enough not to cause oxidation of the aluminum scrap.

Abstract: An elevated electrical connector assembly for use with electric submersible pumps. The assembly is particularly useful for wells at elevated temperatures. The assembly has a removable tubular assembly housing, a removable lower electrical connector, a removable annular retainer member, a removable crossover sealing adapter, a removable upper electrical connector, and a removable locking member. The housing is connected to a wellhead member and extends out the top of the wellhead. The electrical connectors are in a part of the housing that is outside of the wellhead. By elevating the electrical connectors and their mutual junctions away from the hot wellhead, ambient air can provide sufficient cooling of the assembly to prevent connector failure due to high temperatures. A swivel part in the tubular assembly housing permits the connectors to be angled away from hot components in the flow path from the wellhead.