Abstract: In a glass washing machine having a glass carrier rotatable on an upright axis, half of the carrier is always in an access zone where glasses can be loaded onto the carrier and removed from it, the other half in a cleansing zone where detergent solution is discharged from a first set of spray nozzles and germicidal rinsing solution is discharged from a second set of nozzles. Upon actuation of a pushbutton switch, the carrier rotates through 180.degree., always in the same direction, then stops until the switch is again actuatd. Liquids are discharged from all nozzles while the carrier rotates. Detergent solution is recirculated, but fresh detergent solution is introduced during a predetermined portion of each period of carrier rotation.

Abstract: A liquid filling valve arranged on a rotating tank of liquid for filling bottles includes a spray line for directing a cleansing spray of the liquid against liquid carrying parts in the event of bottle breakage. A valve is provided in the body of the filling valve for communicating the liquid from a liquid feeder line to the spray line, the internal valve being arranged to be actuated upon breakage of a bottle.

Abstract: Disclosed is a limited use dishwasher which comprises a housing. Within the housing are a plurality of compartments for receiving dishes to be washed. Each compartment has a movable platform. Each platform is mechanically joined to a separate motor through the means of a lever arm. Conduits are provided to channel water and soap to each compartment and radiant drying is also provided in connection with each compartment. By inserting a dish within the compartment and pressing down on the platform, a switch is closed. Upon the closing of the entrance door to the dishwasher, a second switch is closed, which thereby couples the motor to a source of electrical energy. The motor causes the lever arm to move the platform upward during the washing cycle. Each motor is a rocker arm motor having an elliptical gear which engages the lever arm. On the gear are a series of bosses which contact and close switches at various points during the washing cycle.

Abstract: In testing for cleanliness a cuvette having translucent wall portions, the cuvette is preferably partially filled with pure water and then a beam of optical radiation is directed at a said wall portion, the intensity of radiation which has passed through the cuvette by direct transmission or by scattering is detected, and the state of cleanliness of the cuvette is determined from a comparison between the detected optical intensity and a criterion indicative of cuvette cleanliness.The invention finds particular application to testing cuvettes for cleanliness which have been washed in a laundry of an automatic blood analysing machine.

Abstract: Method and apparatus are provided for ultrasonic cleaning and decontaminating, disinfecting, or sterilizing articles, such as surgical instruments, in a single piece of equipment. Energy transmission through a unitized shell wall coupled with deep vacuum conditions in the chamber enables rapid degasification, enhanced cavitation providing effective and efficient ultrasonic cleaning in a sealed vessel capable of carrying out high pressure sterilization.Sonic energy transducers are rigidly mounted externally of the unitized shell to achieve desired cavitation substantially uniformly throughout the volume of the chamber established for placement of articles to be ultrasonically washed and biocidally treated.

Abstract: The invention relates to a compact glasswasher having wash and rinse tanks and a circular glass conveyor located thereabove, rotation of the conveyor controlling emptying and re-filling of the rinse tank.

Abstract: Apparatus for cleaning the heat exchanging surfaces of the heat transfer plates of rotary regenerative heat exchangers by using a row of high pressure directional jets of cleaning fluid directed into the interspaces between the plates and hitting deposits positioned in the interspaces essentially in the shape of a moving row of impact points.

Abstract: Apparatus for treating cup-shaped workpieces in which the workpieces are positioned within a shape-conforming chamber formed with an outlet port in the base thereof and a conforming nozzle is positioned within the interior of the workpiece in close clearance-spaced relationship. The nozzle is provided with an axial port for discharging a high-pressure treating fluid against the central portion of the interior bottom surface of the workpiece, causing a high-speed radial outward flow therealong and thence axially outwardly along the interior wall surfaces of the workpiece. Upon reaching the open end of the workpiece, the direction of flow is reversed and is directed axially along the exterior wall surface of the workpiece, and upon passing the bottom edge thereof, the fluid is deflected in impinging relationship against the outer bottom surface, whereafter it is discharged through the outlet port and is recovered for reuse.