Abstract: Energy is derived from the flow of gas in an existing, active gas pipeline. A buoyant power unit includes a wheel assembly having a wheel mounted for rotation about a horizontal axis, submerged within a tank of water and carrying receivers located and configured for turning the wheel in response to the reception of gas from the gas pipeline. Gas is drawn from the gas pipeline at an upstream location, is directed to the receivers of the wheel to turn the wheel in response to buoyant forces as the gas rises within the water, and is returned to the gas pipeline, at a downstream location. The wheel is coupled to a generator for producing usable energy. In one arrangement, a plurality of such buoyant power units are connected serially between the upstream and downstream locations. In another arrangement, injectors inject the gas directly into each receiver.

Abstract: An underwater air or gas powered apparatus utilizes the buoyant force of water to generate power in the form of work or electricity. Air bags are spaced circumferentially around the perimeter of a rotary member immersed in water and are alternately inflated and deflated in a sequence enabling buoyant forces to rotate the rotary member. A generator is coupled to the rotary member for generating power in response to rotation of the rotary member.

Abstract: An improvement in ultrasonic cleaning in which articles to be cleaned are immersed in a bath subjected to ultrasonic energy emanating from ultrasonic transducers coupled to a vibratory diaphragm contiguous with the bath, the ultrasonic transducers being in multiple sets for providing ultrasonic energy at multiple ultrasonic frequencies at interspersed locations spaced apart a distance enabling the multiple sets of transducers simultaneously to transmit to the bath ultrasonic energy at the multiple ultrasonic frequencies without deleterious interference arising out of the simultaneous presence of the multiple ultrasonic frequencies.

Abstract: An improvement in ultrasonic cleaning in which articles to be cleaned are immersed in a bath subjected to ultrasonic energy emanating from ultrasonic transducers coupled to a vibratory diaphragm contiguous with the bath, the ultrasonic transducers being in multiple sets for providing ultrasonic energy at multiple ultrasonic frequencies at interspersed locations spaced apart a distance enabling the multiple sets of transducers simultaneously to transmit to the bath ultrasonic energy at the multiple ultrasonic frequencies without deleterious interference arising out of the simultaneous presence of the multiple ultrasonic frequencies.

Abstract: Apparatus and method for detecting the presence of ultrasonic wave energy at a selected location within a volume of material provides a visual display indicative of the ultrasonic wave energy at the selected location, and certain characteristics of the detected ultrasonic wave energy, by coupling with the volume of material, at the selected location, a column of ultrasonic wave energy responsive fluid medium with ultrasonic wave energy responsive visible particles suspended therein so as to induce corresponding ultrasonic wave energy in the column whereby the particles are suspended in the column and are arranged in a visible pattern to establish the visual display indicative of the ultrasonic wave energy at the selected location.

Abstract: An ultrasonic cleaning and drying machine and method in which batches of articles to be cleaned and dried are indexed along a path of travel which follows a compact loop through an ultrasonic cleaning and rinsing station, where the articles are cleaned and rinsed at a first location for a first predetermined timed interval, and a drying station, where the articles are subjected to drying at further locations for a second predetermined timed interval which is a multiple of the first predetermined timed interval, the further locations being equal in number to the multiple such that each batch of articles is cleaned and rinsed at the first location, and then is dried at each further location to complete the cleaning and drying along the compact loop and deliver a batch of clean and dry articles at the expiration of each first predetermined timed interval.

Abstract: Cleaning apparatus and method for use in cleaning ultraviolet radiation inhibiting deposits from the active surfaces of ultraviolet radiation emitting devices utilized in liquid purification systems by inducing ultrasonic vibrations in the emitting devices with ultrasonic transducers coupled to portions of the emitting devices extending outside the conduit through which the liquid to be purified is passed, the coupling being accomplished through a coupling liquid contained within a chamber of relatively small volume into which the extending portions of the emitting devices project to be immersed in the coupling liquid.

Abstract: Automatic ultrasonic cleaning apparatus in which a single ultrasonic cleaning tank is alternately filled and drained with cleaning solution and rinsing solution and is supplied with drying air in accordance with a programmed cycle of operation.