摘要:
A cleaning system may have a trolley bucket assembly, a vacuum recovery tank, and a vacuum motor assembly. The trolley bucket assembly may have a bucket, a wheeled chassis, and a spigot fluidly connected to the bucket. A user may dispense and regulate the flow of cleaning liquid from the bucket through the spigot by manually adjusting the spigot. The tank may hold cleaning liquid and soil, and may have a bottom wall, a vacuum recovery inlet, and a transfer outlet through which cleaning liquid may be transferred to the bucket for reuse. The bottom wall may have an interior surface; and the transfer outlet may have an entry opening through which cleaning liquid from the tank enters the transfer outlet. The entry opening may be positioned above a portion of the interior surface, thereby inhibiting soil that settles on the interior surface portion from passing through the transfer outlet.
摘要:
A multi-functional cleaning and floor care system may have: a fresh liquid reservoir; a vacuum assembly including a vacuum recovery tank and a vacuum motor assembly; a wheeled chassis configured to support at least one of the fresh liquid reservoir and the vacuum recovery tank; and a spigot fluidly connected to the fresh liquid reservoir, with the spigot adjustable between a fully open position and a fully closed position. The system also may have: a liquid spreader assembly connected to at least one of the fresh liquid reservoir, the vacuum assembly, and the wheeled chassis, with the liquid spreader assembly including a frame and a spreader pad; and a squeegee head assembly connected to at least one of the fresh liquid reservoir, the vacuum assembly, and the wheeled chassis, with the squeegee head assembly fluidly connectable to the vacuum recovery tank.
摘要:
A cleaning system with on-board user-training functionality may include: a cleaning machine; an electronic playback device constructed and arranged for user training, with the playback device connected to the cleaning machine; and an electronic storage unit on which one or more items of training information are stored, with the training information relating to training a user in the operation or use of the cleaning machine. In this fashion, a user may select and play training information on the playback device to train the user in the operation or use of the cleaning machine. The playback device may include play, pause, rewind, fast-forward, and stop functions, whereby a user may select an item of training information, play the item, pause or stop play of the item, and practice performing the item on or with the cleaning machine to which the playback device is connected.
摘要:
One aspect of the invention is directed to a portable liquid-recycling liquid-reusing cleaning apparatus for use in cleaning hard surface flooring may have a cleaning-liquid-dispensing-and-vacuum-recovery tank, a spigot fluidly connected to the tank, and a vacuum motor assembly fluidly connected to the tank. The tank may define an interior space operable to hold cleaning liquid and soil. The tank may have a liquid dispensing outlet fluidly connected to the tank interior space, and a vacuum recovery inlet fluidly connected to the tank interior space. The spigot may be fluidly connected to the tank interior space via the liquid dispensing outlet. The spigot also may be manually adjustable through a range between a fully open position and a fully closed position, whereby when the tank contains cleaning liquid, a user may dispense and regulate the flow of cleaning liquid from the tank through the spigot onto hard surface flooring by manually adjusting the spigot. The vacuum motor assembly may be fluidly connected to the tank interior space, whereby a user may vacuum soil and dispensed cleaning liquid from hard surface flooring into the tank interior space via the vacuum recovery inlet. Another aspect of the invention is directed to a method of cleaning hard surface flooring with a portable liquid-recycling liquid-reusing cleaning apparatus in which cleaning liquid is dispensed from, vacuumed into, and re-dispensed from a single tank of the cleaning apparatus onto hard surface flooring. The method may include: filling at least a portion of the tank interior space with a cleaning liquid; dispensing at least a portion of the cleaning liquid from the tank interior space onto a first area of hard surface flooring via the liquid dispensing outlet and the spigot by manually adjusting the spigot; vacuuming soil and at least some of the portion of the dispensed cleaning liquid from the first area of hard surface flooring into the tank interior space via the vacuum recovery inlet, thereby removing soil and recovering cleaning liquid from the first area of hard surface flooring; and dispensing at least a portion of the recovered cleaning liquid from the tank interior space onto a second area of hard surface flooring via the liquid dispensing outlet and the spigot by manually adjusting the spigot. If desired, the method may include vacuuming soil and at least some of the portion of the dispensed cleaning liquid from the second area of hard surface flooring into the tank interior space via the vacuum recovery inlet, thereby removing soil and recovering cleaning liquid from the second area of hard surface flooring. If desired, the method may include manually spreading or agitating cleaning liquid on at least one of the first or second areas of hard surface flooring during or following the dispensing step for the at least one of the first or second areas. A further aspect of the invention is directed to another method of cleaning hard surface flooring with a portable liquid-recycling liquid-reusing cleaning apparatus in which cleaning liquid is dispensed from, vacuumed into, and re-dispensed from a single tank of the cleaning apparatus onto hard surface flooring. The method may include: filling at least a portion of the tank interior space with a cleaning liquid; dispensing at least a portion of the cleaning liquid from the tank interior space onto a first area of hard surface flooring via the liquid dispensing outlet and the spigot by manually adjusting the spigot; dispensing at least a portion of the cleaning liquid from the tank interior space onto a second area of hard surface flooring via the liquid dispensing outlet and the spigot by manually adjusting the spigot; vacuuming soil and at least some of the portion of the dispensed cleaning liquid from at least one of the first and second areas of hard surface flooring into the tank interior space via the vacuum recovery inlet, thereby removing soil and recovering cleaning liquid from the at least one of the first and second areas of hard surface flooring; and dispensing at least a portion of the recovered cleaning liquid from the tank interior space onto a third area of hard surface flooring via the liquid dispensing outlet and the spigot by manually adjusting the spigot. If desired, the method may include vacuuming soil and at least some of the portion of the recovered cleaning liquid from the third area of hard surface flooring into the tank interior space via the vacuum recovery suction inlet, thereby removing soil and recovering cleaning liquid from the third area of hard surface flooring. If desired, the method may include manually spreading or agitating cleaning liquid on at least one of the first, second, or third areas of hard surface flooring during or following the dispensing step for the at least one of the first, second, or third areas.
摘要:
A particular wide-area vacuum/squeegee-head floor cleaning tool, in accordance with the principles of the invention, includes: an elongated frame including a top, a front, a back, a first end, a second end, and a soil uptake opening positioned between the first and second ends; at least one squeegee blade at the front and extending between the first and second ends; at least one squeegee blade at the back and extending between the first and second ends; a first wheel at the first end; a second wheel at the second end; and a third wheel at the soil uptake opening. The first, second, and third wheels are constructed and arranged to support the elongated frame above a floor surface when the squeegee blades at the front and back are in contact with the floor surface in a deflected orientation and vacuum suction is applied to the floor cleaning tool by the vacuum source.
摘要:
An audio playback system and method including an analog preamplifier configured to produce simultaneous “flat” and response-compensated outputs, to enable playback of a phonograph recording via an all-analog signal pathway, while optionally providing for the simultaneous digital recording and/or monitoring of the “flat,” uncompensated signal.
摘要:
In one particular version, the particular ergonomic, liquid-transport container 10 includes a container body 12, a projecting lip 14 extending from the front of the container body 12, a support member 16 connected to the top of the container body 12, a lifting lever arm 18 pivotally connected to the sides of the container body 12 adjacent the back of the container body 12, a pair of non-caster wheels 20, 22 connected to the container body 12 adjacent the back, a pair of caster wheels 24, 26 connected to the container body 12 adjacent the front, and a storage compartment 28 extending from the back. The container 10 advantageously may be used in combination with a cleaning-tool wringer 30 and a cleaning tool 32.
摘要:
A computer based image correction system for Scanning Tunneling Microscopes (STMs) caused by the non-linear, time-dependent behavior of piezoelectric transducers used in STMs to acquire the image. The correction process operates on a digitized stored STM image. A subset of the stored image scan lines are selected for processing. Each scan line is shifted and stretched according to the values of selected parameters. Adjacent scan lines are shifted and stretched in the direction the scan line was acquired. Adjacent scan lines are compared pixel by pixel and the differences are determined. The user is presented with a representation of the differences. The selected parameter values are varied until the differences between adjacent scan lines can best be minimized. The parameter values that best minimized the differences are then applied using the above process to the whole image. The result is an image with the distortions introduced by the piezoelectric transducers removed.
摘要:
Copolymers of acrylic or methacrylic acid with certain N-vinyl amides are excellent treating agents to prevent scale and corrosion caused by boiler waters in contact with heat transfer surfaces.
摘要:
A system for cleaning a commercial food or beverage refrigeration unit may include: a liquid tank; a pump; a vacuum recovery tank; a vacuum motor assembly; a spray wand; a drain stopper; and a suction tool. The refrigeration unit may include a rack, a tray, a fan, a fan housing, a fan power cord, a fan housing power outlet, a coolant, a coolant coil, a pan, and a drain. A method of cleaning the refrigeration unit may include: filling the liquid tank; rinsing the rack by spraying liquid onto the rack; removing the rack; rinsing the tray by spraying liquid onto the tray; removing the tray; stopping the fan; stopping the flow of the coolant; positioning the drain stopper; elevating the fan housing; rinsing the coil by spraying liquid onto the coil; positioning the suction tool on the pan; and vacuuming soil and sprayed liquid into the vacuum recovery tank.