Abstract: A device for mixing liquids and solids in liquids using vibration includes an electromagnetic drive, a drive shaft arranged coaxially with the electromagnetic drive, with drive shaft having a mixing member and either a permanent magnet or a magnetisable element excited by the electromagnetic drive to cause vibration for transmission to the mixing member, and a system of flat spring elements including a first spring element arranged parallel to the drive shaft and a second spring element arranged perpendicularly to the drive shaft and connected to the permanent magnet or the magnetisable element.

Abstract: An integrated and standalone vibrating base assembly for cleaning contact lenses having two selective modes of operation, each mode operably configured to produce different preset vibrational rotations per minute, and comprising a base housing defining a housing cavity, with at least one vibration motor disposed within the housing cavity, electrically coupled to a power source, and operably configured to selectively induce a vibration therefrom with at least one switch coupled to the base housing; and a bottom surface and an upper surface spanning inwardly toward the housing cavity from an upper edge of the base housing to define a concave recess sized to receive two contact lens containers, the upper surface of a friction-inducing, deformable, and polymeric material configured to support two contact lens containers and operably coupled to the at least one vibration motor and to receive a vibration thereon upon activation of the at least one switch.

Abstract: A sound producing device in which an adhesive layer between a piezoelectric element and a metal plate has sufficient electrical conductivity includes: a metal plate; a piezoelectric ceramic including a first adhesion surface, the first adhesion surface being a surface bonded to the metal plate; an alternating current power supply that applies an alternating voltage to the piezoelectric ceramic; and an adhesive layer formed from conductive adhesive and thermosetting adhesive which are spread over the first adhesion surface, the conductive adhesive being applied in a center portion of the first adhesion surface and the thermosetting adhesive being applied at three or more locations in a periphery of the first adhesion surface. An adhesion surface of the metal plate that is bonded to the piezoelectric ceramic is a second adhesion surface, and the first adhesion surface and the second adhesion surface are bonded together by the adhesive layer.

Abstract: A spring assembly includes a coil spring having one or more helical coils between two longitudinally spaced ends, and an attachment site disposed at at least one of the longitudinally spaced ends. The attachment site includes a casing enclosing the at least one of the longitudinally spaced ends, the casing having a casing passage therethrough between a first side and a second side. The attachment site also includes a washer disposed on the first side and having a washer passage aligned with the casing passage, and a base disposed on the second side and having a base passage aligned with the casing passage.

Abstract: A method of fragmenting a DNA sequence having a starting size of at least 10000 base pair into fragments having a mean size smaller than or equal to 1300 bp, wherein the DNA sequence is put in a solution, the solution comprising the DNA sequence is put in a container and the container is placed in a liquid bath which is subjected to the action of ultrasound waves such that the ultrasound waves travel through the liquid bath to excite the container and the solution so as to shear the DNA sequence, and wherein the ultrasound waves have a frequency falling in the range between 28 kHz and 80 kHz.

Abstract: A system and method for controlling a mixing system at a peak energy efficiency point, maximum response point or reduced sound generation point based on displacement, velocity, acceleration or jerk operating conditions.

Abstract: A signal is conducted from a controller module onto a network via a first coupling. The signal is transmitted across the network and received at one or more receiver modules via one or more second couplings. At the one or more receiver modules, the received signal is analyzed and based upon the analysis, a determination is made as to whether a fault has occurred in the network and/or where the occurrence occurred.

Abstract: An incubator (1) has an incubation chamber (2) and a shaking device (4) to shake receptacles (5) placed in the incubation chamber (2). A device chamber (3) adjoins the incubation chamber (2) and accommodates at least parts of the shaking device (4). The shaking device (4) has a base plate (8) that seals off the incubation chamber (2) from the device chamber 3. A shaking table (11) is on the inner face (9) of the base plate (8) and can be moved in a horizontal plane by a drive arm (10). A motor (34) is arranged on the outer face (37) of the base plate (8). The motor (34) drives a drive shaft (14) that is rotatably mounted in the base plate (8) and that is operatively connected to the drive arm (10).

Abstract: A system for microbially deactivating articles, such as medical, dental, veterinary and mortuary instruments and devices. The system includes vibration means for producing ultrasonic waves to facilitate drying after the completion of a liquid microbial deactivation process.

Abstract: Provided here is an agitation vessel which enhances energy transmission efficiency in an agitation apparatus and an analysis apparatus, simplifies the structure of the agitation apparatus and the analysis apparatus, and allows for downsizing and improved maintenanceability. An agitation vessel (5) agitates retained liquid by sound waves. A sound wave generating member (24) which generates sound waves is provided integrally with the agitation vessel (5). The agitation vessel (5) includes a bottom wall (5d) and plural side walls (5c) made of an optically transparent material, and a part of the opposing side walls among the plural side walls (5c) is a photometric window (5b) that optically measures the liquid agitated. The sound wave generating member (24) is arranged on the side wall (5c), on which the photometric window (5b) is arranged, among the plural side walls (5c).

Abstract: A method for treating extremely small particles of recycled polyethylene terephthalate comprises providing a quantity of RPET particles having an average mean particle size ranging from about 0.0005 inch to about 0.05 inch in diameter, heating the RPET particles to a temperature sufficient to cause at least a portion of the RPET particles to adhere to one another, and forming the adhered RPET particles into pellets, said pellets having substantially the same average surface-to-volume ratio as the bulk, un-adhered RPET particles.

Abstract: The present invention relates to apparatus and methods of vibration. In particular, the present invention relates to apparatus and methods of vibration for tooling in a structure, such as, for example, a fuselage. In one implementation, the tooling comprises at least two conductors that create a force to vibrate the media in the tooling, which improves the compaction of the media in the tooling and the extraction of the media from the tooling. Other implementations may be used for compaction and/or extraction of the media in the tooling.

Abstract: An adapter system for fixing different screening media to a vibrating screen. By way of the adapter system, different side hold downs used for different screening media may be fixed to a wall of the vibrating screen without any modifications of the wall. The adapter system includes an insert to be placed in an opening of the wall. An adapter is attached to the insert at a desired height in relation to the insert. The insert has a number of parallel grooves co-operating with parallel ribs on the adapter in order to attach the adapter to the insert.

Abstract: A method and apparatus for monitoring a temperature difference between two regions within a cavitation system is provided. The system's cavitation chamber is partially or completely filled with cavitation fluid, the amount that the system is filled controlling whether a cavitation fluid free surface is formed within the cavitation chamber or a conduit coupled to the chamber. Regardless of whether the region of the system above the cavitation fluid free surface is within the chamber or within the conduit, a temperature difference is created between this region and the cavitation fluid within the cavitation chamber. The temperature difference between these two regions is monitored by monitoring the temperature of each region. The temperature difference can be created by either heating the region above the cavitation fluid free surface, cooling the cavitation fluid, or both.

Abstract: A method of operating a cavitation system in which the cavitation chamber is separated into at least three distinct chamber volumes by, for example, first fabricating and then installing a pair of gas-tight and liquid-tight seals into the cavitation chamber, is provided. Each chamber volume seal is fabricated from a rigid reflector and a flexible member. During chamber operation, only one of the three volumes contains cavitation fluid, the other two chamber volumes remaining devoid of cavitation fluid. By controlling the pressure within the two unfilled chamber volumes, the rigid reflectors can be used as a means of increasing the static pressure within the fluid-filled chamber volume.

Abstract: The present invention relates to apparatus and methods of vibration. In particular, the present invention relates to apparatus and methods of vibration for tooling in a structure, such as, for example, a fuselage. In one implementation, the tooling comprises at least two conductors that create a force to vibrate the media in the tooling, which improves the compaction of the media in the tooling and the extraction of the media from the tooling. Other implementations may be used for compaction and/or extraction of the media in the tooling.

Abstract: A method for making phosphor ink is provided which uses ultrasonic vibrations to remove surface defect layers from phosphor particles and to quickly and uniformly disperse the phosphor particles throughout a slurry. Propagation of low frequency vibration through the slurry generates cavitation, causing distortion and then removal of the surface defect layer, and propagation of high frequency vibration through the slurry causes the particles to be dispersed quickly and uniformly throughout the slurry. In this manner, a quantity of light generated in the phosphor and corresponding luminance of a PDP is increased.

Abstract: A second housing whose center portion is depressed and whose end portion around the center portion is formed like a visor is arranged around a first housing whose center portion is depressed and whose end portion around the center portion is formed like a visor, and a hollow portion is formed between the first housing and the second housing by sandwiching a packing between the end portions of the housings. Further, degassed water for preventing empty heating is filled in the hollow portion, and an ultrasonic transducer is placed on the surface of the center portion of the first housing. A weight for preventing the vibration of the wall is provided on the wall surface of the second housing. Since the vibration of the wall of the housing is suppressed by the weight, vibration energy returns toward the bottom surface of the center of the housing through water and is radiated from the bottom surface efficiently as ultrasonic waves.

Abstract: An integrated microfabricated instrument for manipulation, reaction and detection of microliter to picoliter samples. The instrument is suited for biochemical reactions, particularly DNA-based reactions such as the polymerase chain reaction, that require thermal cycling since the inherently small size of the instrument facilitates rapid cycle times. The integrated nature of the instrument provides accurate, contamination-free processing. The instrument may include reagent reservoirs, agitators and mixers, heaters, pumps, and optical or electromechanical sensors. Ultrasonic Lamb-wave devices may be used as sensors, pumps and agitators.

Abstract: An apparatus for enhancing chemical reactions in a constantly flowing stream of liquid character fortified with oxidizing agents, such as air or oxygen or other chemical agents, makes use of an inner resonant tube concentrically mounted within an outer resonant tube with the walls of the tubes spaced from each other forming an annular passageway for the flow of liquid from one end of the passageway to the other. One or more sets of radially spaced ultrasonic transducers are located on the outside wall of the outer resonant tube thereby to create an ultrasonic cavitation condition in the liquid as it flows through the annular passageway.