Abstract:
A sealer gun that discharges a liquid of a coating agent or filler from a nozzle on its tip is securely prevented from producing dripping that arises as a liquid drips from the nozzle tip and remains when the liquid discharge stops. A pump including a cylinder and a freely movable piston fitting therein is assembled onto a discharge cylinder of the sealer gun, an operation rod interlocked with the pump piston and a grip are interlocked via an interlock mechanism to perform pump operation of suction-discharge by movement of the piston caused by pivoting of the grip, and a suction-discharge aperture of the pump is positioned in an internal space of the nozzle, and configured so that when the liquid discharge sops by releasing the grip, a negative or positive pressure is introduced into the nozzle because of the pump operation caused by resilient pivoting of the grip.
Abstract:
A nozzle assembly includes an inner tubular member having a closed end and an opposed open end for receiving a fluid from a source, at least one outlet extending radially through the inner tubular member proximate the closed end, wherein the closed end is configured for insertion into a bore defined by a sidewall in a work piece. The nozzle assembly further includes a slidably movable outer sleeve, having a distal end, disposed around the inner tubular member, wherein the distal end is configured for contact with an exterior edge portion of the bore. The outer sleeve is normally biased to a first position sealing the at least one outlet from the exterior, and slidably movable to a second position unsealing the at least one outlet upon contact with the edge portion of the bore as the closed end of the inner tubular member is inserted into the bore.
Abstract:
Embodiments described herein relate generally to devices, systems and methods for producing liquid impregnated surfaces with enhanced durability. In some embodiments, a liquid-impregnated surface includes a first surface having a first roll off angle. A plurality of solid features are disposed on the first surface, such that a plurality of interstitial regions are defined between the plurality of solid features. An impregnating liquid is disposed in the interstitial regions. Furthermore, the interstitial regions are dimension and configured such that that the surface remains impregnated by the impregnating liquid. The impregnating liquid disposed in the interstitial regions defines a second surface which has a second roll off angle less than the first roll off angle. The apparatus also includes a liquid delivery mechanism configured to transfer the impregnating liquid to the interstitial regions.
Abstract:
An apparatus for spreading liquid liner in the interior of a rocket motor tube, the rocket motor tube having masks attached at both ends of the rocket motor tube, the apparatus including a generally vertical support plate with an opening there through; a flange with a center opening attached to the support plate; a support tube inserted into the center opening of the flange; a stop disposed in the support tube, the stop abutting the support plate and engaging a mask on one end of the rocket motor tube; a retaining funnel that engages a mask on the other end of the rocket motor tube; a retaining ring that threadingly engages the retaining funnel; and at least two clamps attached to the support tube and engaging the retaining ring.
Abstract:
This invention is an apparatus and a method for applying a very thin film of fluoropolymer to a substrate, and more particularly, to a substrate surface that is a heat transfer, aerodynamic, and hydrodynamic substrates. This invention is also a substrate including an extremely thin film of fluoropolymer.
Abstract:
A putty injection tool that is hand held and injects one shot of putty or filler material at a time into a void such as a hole left from setting a nail. The tool is cradled in the curve of the fingers with the hollow tube tip protruding past the fingers. This tool does not hold a cartridge of putty but is loaded each time with putty by pressing the hollow tip into a color matching stick of pliable putty. The tip of the hollow tube is placed against the surface of the void to be filled and the solid shaft is pressed through the hollow shaft to push out the plug of putty into the void. The tool has different sizes and shapes of hollow shafts to allow filling round nail set voids and elongated staple or T-nail voids.
Abstract:
A powder coating apparatus and method feeds fine powdered coating material such as thermoplastic type material to a succession of discrete articles passing by the apparatus which includes a vibratory feeder bowl and a spiral track for delivering a substantially constant supply of powder coating material to the articles, wherein the powdered coating material is mixed with a pressurized airstream that delivers the powdered coating material to the articles. A sensor is also used to regulate an amount of powdered coating material supplied to the auger to the vibratory feeder. The invention also provides a powder feed system that deposits an excess of powdered coating material than that required to form the coating and provides for recirculation of the powder not ultimately used to form the coating back to the powder feeding apparatus.
Abstract:
A cement lining slinger head tachometer device to detect and display the speed of rotation of a slinger head when lining the inner surface of a pipe with cement including a cement supply to feed cement from an external source to the slinger head, a slinger head drive to rotate the slinger head and a system control to monitor and display the rotational speed of the slinger head.
Abstract:
A mechanism and process for coating tapped holes in specialty articles having varying external configurations, such as metal stampings. The specialty article is positioned in a preselected orientation at a loading station, and is then engaged by a carriage assembly and moved from the loading station to a heating station, and then to a spray and discharge station. During movement between stations, the article is maintained in the preselected orientation to allow proper heating and spraying of the tapped holes.
Abstract:
This invention provides for methods and apparatus for increasing the speed of material deposition by a blade element traversing across an apertured mask. The invention involves varying the velocity of the blade element as it sweeps across different sections of the apertured mask. Varying the sweep velocity of the blade element allows for increases in the average speed of material deposition while retaining precision in the application of material deposited through the apertured mask.