Abstract: A power tool battery pack enclosure is configured to be retrofittedly coupled to battery pack receptacles of a plurality of power tools, each battery pack receptacle configured to removably receive a plurality of power tool battery packs. The enclosure includes a first clamshell member and a second clamshell member configured to be coupled around at least a portion of an exterior surface of each battery pack receptacle. Each of the first and second clamshell members have a top wall portion configured to be received over the exterior surface of the battery pack receptacle and a sidewall portion that extends downward from the top wall portion over at least a portion of the battery pack housing when the battery pack is received in the battery pack receptacle.

Abstract: A vibrator arrangement for producing material columns in the ground comprises an elongate vibrating body with an outer surface having a girth and at least one projection extending at least partially around the girth of the vibrating body. A method of producing a material column in the ground may use such a vibrator arrangement.

Abstract: Vibrating apparatus (50) for compacting concrete that includes a vibrating head (1) with an electric motor (11) operating a vibration generating device (10), a current conductor wiring (12a, 12b, 12c) with a plug (13) for connecting said electric motor (11) to a electric supply network (27), a frequency converter (30) for converting the frequency of the current supplied by the electric supply network to another different frequency, and a control unit (2) having a switch (14), a plurality of sensors (28) for detecting different operating parameters of the vibrating apparatus, a programmable electronic circuit (15) for monitoring said parameters from signals supplied by the sensors, a memory (16) for storing representative data of the parameters and a communications management device (17) whereby a user accesses the data stored in the memory (16).

Abstract: A vibratory grout consolidator for eliminating gaps and voids in grout by attaching to reinforcing bars extending within masonry block walls and encapsulated within the grout. The device includes a clamp including a bar sleeve having a first part attached to a first arm and a second part attached to a second arm. The bar sleeve has a pair of open ends that allow a reinforcing bar to extending fully through the bar sleeve. A vibration source is attached to the clamp so that when the bar sleeve is engaged with the reinforcing bar, vibration is transmitted to the reinforcing bar and encapsulating grout.

Abstract: A vibratory grout consolidator device for eliminating gaps and voids in grout by attaching to reinforcing bars extending within masonry block walls and encapsulated within the grout. The device includes a clamp including a bar sleeve having a first part attached to a first arm and a second part attached to a second arm. The bar sleeve has a pair of open ends that allow a reinforcing bar to extending fully through the bar sleeve. A vibration source is attached to the clamp so that when the bar sleeve is engaged with the reinforcing bar, vibration is transmitted to the reinforcing bar and encapsulating grout.

Abstract: The invention relates to a frequency converter for an immersion vibrator, comprising a mobile converter housing, and a converter circuit disposed in said converter housing and adapted to convert an electrical supply voltage to a special voltage. The converter is further provided with a feed line that is mechanically linked with the converter housing and electrically connected to the converter circuit. At the end of said feed line facing away from the converter housing a plug part is disposed. The converter circuit feeds a connector with the special voltage, a plug part of the immersion vibrator being insertable into said connector.

Abstract: The invention relates to a poker vibrator for compressing concrete. The poker vibrator comprises a vibrating housing that accommodates an unbalanced mass and an electromotor, an insulating plastic tube that links the vibrating housing to a switch cover, an electric cable that links the switch cover to a connector shell and that bears a power plug, and a frequency converter that supplies the current for the electromotor. The poker vibrator is characterized in that the switch is arranged separately from a coupling piece on the tube and not on the electric cable and/or in that at least some of the components of the frequency transformer are arranged in a transformer housing provided between the switch housing and the powerplug.

Abstract: The invention relates to a poker vibrator for compressing concrete. The poker vibrator comprises a vibrating housing that accommodates an unbalanced mass and an electromotor, an insulating plastic tube that links the vibrating housing to a switch cover, an electric cable that links the switch cover to a connector shell and that bears a power plug, and a frequency converter that supplies the current for the electromotor. The poker vibrator is characterized in that the switch is arranged separately from a coupling piece on the tube and not on the electric cable and/or in that at least some of the components of the frequency transformer are arranged in a transformer housing provided between the switch housing and the powerplug.

Abstract: The invention relates to a poker vibrator for compressing concrete. The poker vibrator comprises a vibrating housing that accommodates an unbalanced mass and an electromotor, an insulating plastic tube that links the vibrating housing to a switch cover, an electric cable that links the switch cover to a connector shell and a frequency converter that supplies the current for the electromotor. The poker vibrator is characterized in that at least parts of the components pertaining to the poker vibrator are arranged in the vibrating housing, the insulating plastic tube or the connector shell.

Abstract: An adapter for coupling to a power tool having a motor with about 2000 W power, the adapter including a transmission for coupling the motor of the power tool to a poker, so as to convert the power tool to the power supply for a concrete vibrator, and a method for making a concrete vibrator, the method including mounting an adapter on a power tool having a motor with about 2000 W power, and coupling the adapter to a poker, thereby converting the power tool to a concrete vibrator.

Abstract: An adapter for coupling to a power tool having a motor with about 2000 W power, the adapter including a transmission for coupling the motor of the power tool to a poker, so as to convert the power tool to the power supply for a concrete vibrator, and a method for making a concrete vibrator, the method including mounting an adapter on a power tool having a motor with about 2000 W power, and coupling the adapter to a poker, thereby converting the power tool to a concrete vibrator.

Abstract: A method and apparatus for sterilizing water containing pathogen protozoa having shells in a simple manner without negative influencing the environment is disclosed. Ultrasonic waves are applied to drinking water to form fine cavitation bubbles which are used to destroy the shells of pathogenic protozoa. The residual chlorine in the drinking water along with an oxidizing action and effect of the ultrasonic wave, permit not only sterilization but also deodorization and decolorization.

Abstract: The method of treating an aqueous, cementitious slurry, to enhance fluidity, that includes providing a container for the slurry and effecting movement of the slurry via an impeller, in the container, and locating at least one vibrator in the interior of the vessel, and operating the vibrator to transmit vibration to the moving slurry.

Abstract: A portable concrete finishing system comprising a backpack-borne, pivoting engine that powers a selected tool. A rigid frame supporting a four cycle motor is connected to the tool by a flexible power shaft. A removable vibration absorption system isolates the user from stress. A pair of integral, divergent shoulder harnesses protrude from the backpack top and an encircling, semi-elastic waist belt encircles the bottom. An integral belt tensioner permits the user to adjust belt tightness. The dampening system comprises a removable pad that has a pair of slip-on cuffs to captivate the ends of both shoulder harnesses. The frame also mounts a pair of ergonomic controls that may be easily manipulated by the user to control the power unit. A bracket assembly secures the engine to the frame. The assembly comprises a bracket pivotally coupled to a support that is attached directly to the frame. The bracket and support are hinged by a pin. The bracket directly attaches to the engine.

Abstract: A concrete vibrator 10 having a direct current motor 3 and a battery pack 19 mounted in a handle housing 17. The battery pack 19 is attached to a hook 75 provided in an opening of the handle housing 17, and a battery cover 80 is attached to completely cover the battery pack 19. Air inlet ports 41, 42 and air exhaust ports 43, 44, 45 are formed in a lower side of a concrete vibrator body between the lower end of handle housing 17 and the lower forward end of a motor housing 11.

Abstract: A portable concrete vibrator system comprising a backpack-borne four cycle engine that powers a pendulous vibrator. The backpack comprises a rigid frame mounting a four cycle motor that is connected to the vibrator by a flex-shaft and isolated therefrom by an in-line compensator. A removable vibration absorption system isolates the user from stress. A pair of integral, divergent shoulder harnesses protrude from the backpack top and an encircling, semi-elastic waist belt protrudes from the bottom. An integral belt tensioner on each side of the belt permits the user to tighten one or both belt sides to adjust belt tightness. The backpack vibration dampening system is removable for cleaning or adjustment. The dampening system preferably comprises a thick pad that has a pair of slip-on cuffs to captivate the ends of both shoulder harnesses. A plurality of snaps or other conventional attachment points secure the remainder of the system to the frame.

Abstract: A vibrator for immersion in wet concrete includes a relatively rigid shell with an internal vibrating mechanism. A cover is provided on the shell formed of a material softer than the shell whereby to lessen the effects of the impact of the shell on any encountered object such as a reinforcing rod. The cover is made, for example, of a plurality of rings arranged in axial series defining passages therebetween to provide access to the shell for cooling the same. The covering on the shell is intended to avoid chipping of, for example, epoxy coatings which are employed on reinforcing rods. As an alternative to the rings the covering can be formed with holes to provide passages for the cooling. The passages flare outwardly and are devoid of undercuts and recess to avoid entrapping cured and hardened concrete. A method can be employed of forming fins on the shell by which the cover is firmly attached to the shell, being molded thereupon.

Abstract: A sonicator apparatus having a signal generator for generating high frequency sound waves to a convertor which transforms electrical energy into mechanical energy in the form of oscillations to a horn having a probe immersed in a sample disposed in a sample holder includes a shielding arrangement having one end sealed against the convertor and another end sealed against the sample container and defining an aerosol containment chamber for preventing aerosols generated by oscillation of the probe in the sample from becoming airborne. The apparatus further includes a self centering device to insure proper disposition of the probe relative to the sample holder and use of a partial vacuum to provide a more efficient evacuation of aerosols from the chamber and simultaneously diminish noise levels. An enclosure provided with sound absorbing foam enhances the reduction of noise.

Abstract: The present invention is a method for producing a silver halide emulsion. The precipitation of the emulsion is carried out away from the rotary agitator. The reactant solutions are introduced into the reactor very close to the tip of one or more ultrasonic horns that are placed away from the agitator. The ultrasonic horns are efficient sources for controlling micromixing, while the agitator controls the macromixing in the reactor.

Abstract: Piezoelectric elements are attached to both sides of a flexible metal thin plate, thus forming a bimorph-type piezoelectric vibrator. A portion of the metal thin plate is extended to form a stirring blade. A suitable weight is attached to a part of the metal plate such that the amplitude of the blade is made greater than the amplitude of the vibrator itself. The voltage to be applied to the vibrator and the frequency are adjusted, and the vibrator is vibrated in a second-order mode. Thereby, the entire solution is moved simultaneously, vertical motion is caused, and the stirring efficiency is enhanced.

Abstract: An arrangement for the application of topical substances to base products. A rotatable star-shaped reel structure is rotated, in which a flowable base product is tumbled while being coated with the topical substance so as to ensure an appropriate uniform distribution of the topical substance on the surfaces of the base product while inhibiting the formation of clump-like agglomerates of coated base product on the internal surfaces of the reel.

Abstract: An ultrasonic fluid processing method is provided for cavitation and processing a first fluid with a second fluid in a sonication or cavitation zone. The method is useful for preparation of emulsions for chemical and pharmaceutical applications, to gasify liquids for purification, for chemical reactions, to accelerate chemical and physical reactions, and to suspend fine particles. The method includes the steps of, forming a vibration element having an axis and with an adjacent sonication or cavitation zone, enclosing the element and zone in a sealed cavity having a first fluid passage, forming a second fluid passage coaxially with the vibration element and disposed adjacent to the sonication zone, and forming a third fluid passage coaxially with the vibration element and disposed adjacent to the sonication zone. With this method, problems with the control of proportions and amounts and uniformity of parts of fluids being mixed or processed are avoided.

Abstract: An ultrasonic fluid processing system is provided for cavitation and processing a first fluid with a second fluid in a sonication or cavitation zone. The system, in a preferred embodiment, includes a converter with a power supply, a vibration means connected to the converter and defining at least in part a sonication or cavitation zone and a cell having walls forming a cavity. The cell also has a first inlet means with an inlet opening for providing a first fluid to the cavitaito zone. The cell also has a second inlet means with an inlet opening for simultaneously providing a second fluid to the cavitation zone. The cell has an outlet opening for exit of fluid after processing and cavitation.

Abstract: A Moyno type oscillator having a screw shaped rotor and stator is lowered down by means of a cable within a section of drill pile which has become stuck in a bore hole. The rotor of the oscillator is rotatably driven by means of a liquid stream at a speed such as to generate vibrational energy in the oscillator housing at a sonic frequency. The cable from which the oscillator is suspended has swivel bearings installed therein to permit the oscillator housing to rotate from the cable. The vibrational energy generated in the oscillator housing causes the housing to rotate precessionally around the inside wall of the stuck section of drill pipe to thus generate amplified lateral quadrature vibrational energy in the drill pipe to shake it loose from the bore hole.

Abstract: A screw shaped rotor is freely mounted for rolling rotation in a mating screw shaped stator which is mounted in a housing. The rotor is rotatably driven by means of a fluid stream to generate sonic energy in the housing with a lateral mode of vibration at a frequency which is the function of the rate of fluid flow. The oscillator housing is coupled to the load which it drives uniformly along the entire length of the oscillator. The drive fluid for the oscillator is coupled thereto through a flexible coupling such as a section of rubber hose so that this coupled end of the oscillator is not substantially constrained against lateral vibration and is free to vibrate laterally along with the rest of the housing. The oscillator housing may be coupled along its entire length to the load to be vibrationally driven or can be suspended in a liquid which is to be vibrationally energized.

Abstract: A poker vibrator includes an extra weight which is mounted on the hose accommodating the power supply of the vibrator of the poker vibrator assembly connected to the end of the hose. The extra weight is mounted on the hose in the vicinity of the casing. the extra weight is also in the area of the hose where it is manually held by the operator when using the poker vibrator. The poker vibrator equipped with the extra weight prevents or at least damps the vibration amplitude and with it the intensity of the vibration in the area of the hose manually held by the operator.

Abstract: The invention provides a device for generating mechanical vibrations, preferably a sound-type vibrator having a cylindrical housing with a coaxial stationary shaft, on which a sleeve-shaped working body is suspended, driven by a compressed fluid to a vibrating/rolling movement. The free end of the hollow shaft is widened to a cylindrical collar, whereby the inside of the housing is divided into an auxiliary and a main working chamber, between which communication is provided by a coil channel which is foreseen on the mantle surface of the collar. The superimposed radial surfaces of the collar and of the cover of the housing, which surfaces define the main working chamber in its axial direction, are tapered.

Abstract: A pneumatic vibrator is provided which operates without the use of bearings. The vibrator includes a generally cylindrically formed housing and a cylindrical shaped rotor contained within the housing. The housing includes an inlet for receiving pressurized fluid and an outlet for discharging the fluid. The rotor has a number of jets formed adjacent the periphery of the rotor and extending through the outer longitudinal surface thereof. The rotor also includes an axle member extending from the rotor and which engages a recess formed in an end of the housing. In operation, the inlet of the vibrator is connected to a source of pressurized air. At least a portion of one of the jets is aligned with the inlet to receive the pressurized air. The air discharged from the jet produces a thrust driving the rotor about the inner wall of the housing.

Abstract: Frozen lumps of coal in conventional hopper cars are loosened by lowering an assembly of vertically oriented probe elements into the car while simultaneously vibrating the assembly. The vibratory structure is mounted on a gantry arrangement which also supports a supplemental probe arrangement utilizing impact forces to loosen coal in hopper cars having interiors different from those of the cars operated on by the vibratory arrangement.