Abstract: A pneumatic drilling chip removal system for removing drilling chips from a well bore, comprising sub-surface drilling equipment having a plurality of components and a drilling bit, a central passageway extending through the components and to the air jets in the drilling bit, wherein at least one component above the drilling bit in the sub-surface drilling equipment is a pneumatic component having an opening forming a pneumatic conduit from the central passageway to the annulus, a bypass valve disposed therein selectively permitting air flow from the central passageway to the annulus, forming a supplementary air source for removal of drilling chips from the well bore. Methods for using a pneumatic drilling chip removal system.

Abstract: An article forming system for forming at least one sheet of material into an article, such as a decorative flower pot cover for example. The article forming system includes a male die and a female die. A sheet of material is automatically moved to a loaded position between the male and female dies and then the male and female dies are moved to a forming position for forming the article. The formed articles are automatically stacked.

Abstract: A method of attenuating a molten thermoplastic polymer stream into polymer fibers for forming a non-woven fiber mat, and the non-woven fiber mat formed thereby. The method applying a gas stream to a molten polymer stream, and inducing a cyclic pulsation in the gas stream. The cyclic pulsation further comprises a discontinuous flow of the gas stream. The application of the gas stream to the molten polymer stream causes the attenuation of the molten polymer stream into a plurality of fibers which are collected onto a receiving surface thereby forming a non-woven fiber mat. The method may be used to impart a particularly unique or otherwise desirable configuration to the fibers or to the fiber mat produced from them. The gas stream may be comprised of a primary gas flow having a first stream and a second stream. The gas stream may be further comprised of a secondary gas flow having a first stream and a second stream.

Abstract: A fabric-filter baghouse using heated, filtered exhaust gas for reverse-flow cleaning of fabric filter bags. The baghouse includes a housing having an inlet chamber and an outlet chamber therein, a number of fabric filter bags mounted between the inlet chamber and the outlet chamber and an exhaust fan for drawing a stream of gases through the baghouse. The interior of the filter bags communicate with the outlet chamber and the exterior of the filter bags are disposed in the inlet chamber. The filter bags are constructed to prevent particulate from passing from the exterior to the interior of the filter bags, while allowing the gas stream to do so. Particulate which collects on the exterior of the filter bags is removed by passing a reverse flow of gases through the filter bags. One or more rotary valves are provided to direct a reverse flow of gases to one group of filter bags at a time.

Abstract: A paving machine having a medially located dowel bar feeder positioned in front of a dowel bar inserter. The machine has a screw or paddle for spreading the concrete and a front strike-off to allocate a proper amount of unconsolidated concrete beneath the machine. Next in line, internal vibrators are mounted to the machine to perform a preliminary consolidation of the concrete, followed by a screed to meter out a correct volume of consolidated concrete for a finished concrete slab. To the rear of the screed, the dowel bar feeder drops dowel bars in a predetermined pattern on the top surface of the consolidated concrete. The dowel bar inserted is mounted to the paving machine behind the dowel bar feeder and includes a plurality of vibrating forks which descend to engage the dropped dowel bars and insert the dowels into the unhardened concrete. In operation, the dowel bars are dropped and the paving machine is driven forward until the forks are over the dropped dowel bars.

Abstract: A cover/wrap system for flower pots and the like allows the use of any sheet of material to cover a pot and be held in place by a sleeve. A transparent sleeve can be used, and colored or patterned material will decorate the pot; and, if the material is subject to moisture damage, an inner sleeve acts as a moisture barrier. The sleeve can be set down, the sheet of material placed over the sleeve, and the pot simply placed on the sheet of material. The pot will sink into the sleeve and will urge the sheet of material around the pot, then hold the material in place.

Abstract: A floral container having a water-impermeable external layer for a floral grouping comprising a holding material and having a water-impermeable external surface layer. The holding material is constructed of a material capable of receiving a portion of a floral grouping, botanical item or propagule and supporting the botanical item, floral grouping or propagule. A sheet of material may be extended about a portion of the holding material and a crimped portion or bonded portion is formed in the sheet of material with the crimped portion or the bonded portion cooperating to hold the sheet of material about the holding material to provide a decorative cover. A bond or other tying device may also be used to bond the sheet of material to the flower pot.

Abstract: An electronic monitoring system to accurately measure a vacuum in an interstice between inner and outer walls of a dual-wall container or pipe which allows highly accurate analysis of vacuum differential to discover and confirm a leak in either the inner or outer walls of the container or pipe within minutes.

Abstract: An acrylic/lactam monomer based polymeric resin is provided which has excellent weatherability, outstanding transparency and optical clarity, improved heath and solvent resistance, as well as improved impact strength. The acrylic/lactam monomer based polymeric resin is formulated by the catalytic activation at ambient temperature of a polymerization syrup which contains from about 300 to about 2970 parts by volume of an acrylic monomer, from about 30 to about 2700 parts by volume of a lactam monomer, from about 0.3 parts to about 40 parts by volume of a mercaptan chain transfer agent and from about 0.3 to about 40 parts by volume of a crosslinking agent capable of crosslinking the acrylic monomer and the lactam monomer. To prevent further polymerization of the polymeric constituents of the polymerization syrup, as well as to enhance the shelf life of the polymerization syrup, an effective amount of a polymerization inhibitor and an ultraviolet light stabilizer are incorporated into the polymerization syrup.

Abstract: A firearm safety device including a tube assembly which is insertable through the barrel and/or and through a portion of the cartridge chamber. A stop assembly is disposed in the tube assembly. The stop assembly has a locking position and an unlocking position. In the locking position, a portion of the stop assembly extends a distance from an outer peripheral surface of the tube assembly for engaging a portion of the firearm and preventing removal of the tube assembly from the barrel and the cartridge chamber. A plunger is disposed in the tube assembly. One end of the plunger is engageable with the stop assembly for moving the stop assembly to the unlocked position. A blocking device is disposed in the tube assembly for preventing the plunger from engaging the stop assembly and moving the stop assembly to the unlocked position.

Abstract: A method of disposing of animal excrement uses a container having a bottom wall, a front wall, a rear wall, a first side wall and a second side wall. The front wall, the rear wall and the first and the second side walls each are connected to the bottom wall and cooperate with the bottom wall to encompass a pet receiving space in an opened position of the container in which litter material is placed. The ends of the side walls and the front and rear walls, opposite the ends connected to the bottom wall are connected. The side walls each are gusseted so that the container may be collapsed to a position wherein the side walls and the front and rear walls are folded onto the bottom wall in the collapsed position of the container. The container is opened from the collapsed position to an operating position wherein the side walls and the front and rear wall each extend a distance upwardly from the bottom wall and cooperate to enclose the pet receiving space.

Abstract: Gem-Dichlorocyclopropanes (Analog II derivatives) which demonstrate antiproliferative activity toward MCF-7 cells, in vitro and are generally not reversed by estradiol or having intrinsic estrogenicity (except the hydroxyphenyl derivative Compound 30). In general the cyclopropane compounds have the formula: ##STR1## or any pharmaceutically acceptable salt thereof. X is selected from a group consisting of hydrogen and halogen atoms. The group R.sub.1 may be a hydrogen atom, an alkyl group, an acyl group, or an arylalkyl group. The group R.sub.2 may be a hydrogen atom, an unsubstituted aryl group or a substituted aryl group. The group R.sub.3 may be a hydrogen atom, an alkyl group, a cycloalkyl group, a substituted aryl group or an unsubstituted aryl group. The group R.sub.4 may be a hydrogen atom, an unsubstituted aryl group or a substituted aryl group. The R.sub.4 is absent when R.sub.

Abstract: An asphalt production plant with a drum dryer having two burners and expanded exhaust gas exit area. The dryer has a rotatable dryer drum with an inlet end and a discharge end. A burner is positioned at each end of the dryer drum to produce a stream of hot gases both parallel with and counter to the movement of aggregate through the dryer drum. A dust chamber surrounds a medial dust section of the dryer drum. The dust section of the dryer drum communicates with the dust chamber through slots and perforated angle plates to produce an increased area for the exit of exhaust gases. In addition to the drum dryer, the plant comprises an aggregate feed system for delivering aggregate into the dryer, an exhaust system, a drum mixer, a recycle feed system, a reservoir of bituminous fluid and an asphalt bin. A drag conveyor is provided to transfer aggregate from the dryer into the drum mixer. Recycle material and dust from the exhaust system may be introduced into the drag conveyor as well.

Abstract: A wrapping material for providing a decorative covering for an item wherein the wrapping material has a width and at least a first end. The first end of the wrapping material is positioned on the outer peripheral surface of the item to be wrapped and the wrapping material is wrapped about the outer peripheral surface of the item while moving the wrapping material generally over the outer peripheral surface of the item until the wrapping material covers at least a portion of the outer peripheral surface of the item.