Abstract: An arrangement in a vacuum cleaner having an electric motor (15) and a suction fan (14) connected with the motor, the motor being provided with an electronic speed control device (16) making possible the adjustment of the suction power of the vacuum cleaner. The speed control device (16) is arranged by operating of a control means (19; 47) during a predetermined time to control the motor (15) to rotate at a speed corresponding to a power level exceeding the maximum continously available power and then to reconnect the speed that previously prevailed. Means (40, 43, 44, 45) are arranged to prevent operation at the speed corresponding to the exceeding power during a second predetermined time following the first predetermined time.

Abstract: The invention comprises a scrubbing pail device having a pail with a fresh water reservoir detachably mounted to the pail. The reservoir has a recess for receiving a mop, with a rotatable receptacle therein to open and close valve means between the receptacle and the reservoir to allow fresh water from the reservoir to flow onto the mop for cleaning the mop with fresh water from time to time. The receptacle is also rotatable to open and close drain openings between the receptacle and the pail to allow the water in the receptacle to drain into the pail.

Abstract: The present invention relates to a flushing apparatus for cleaning a piping system (2) internally. The object of the invention is to achieve efficient cleaning without the use of equipment heavily overdimensioned in relation to the nominal flow through the piping system. According to the invention, use is made of a pump (4) having an operational pressure essentially higher than the pressure fall of the piping system at a turbulent flow, in combination with at least one pressure liquid accumulator (21). The flushing circuit includes at least one blocking valve (15, 15a) which is opened upon reaching intended (maximal) pressure, thereby producing a powerful flow pulse through the piping system (2).

Abstract: A butterfly-type sponge mop with presser plates and an actuating member pivotal relative to a center block. The mop includes a top center block which when interlocked with a bottom center block forms a plurality of bearing surfaces to enable motion of the presser plates about a transverse axis and motion of the actuating member about a longitudinal axis. The mop utilizes a generally loop-shaped actuating member to facilitate assembly without compression of the actuating member. The actuating member is connected to a connecting link which is actuated by a slide handle. A novel connecting means is utilized to enable a predetermined amount of rotation between the actuating member and the connecting link without the need for additional parts to retain same together.

Abstract: The seal protection apparatus is intended to provide protection for a main mechanical seal. It comprises a first seal ring fast on the shaft of a pump and a second seal ring which is connected to the casing of the pump by means of a flexible, annular diaphragm which is exposed on one side to pumped product in the casing. The combination of seal rings and diaphragm define one end of a service liquid compartment which is supplied with pressurized, clean service water. The other end of the compartment is defined by the main seal. With a flow of service water to the compartment, the seal rings are forced apart by the water pressure. Water is able to leak between the rings into the casing thereby denying the pumped product access to the compartment and main seal. On the other hand, if the supply of service water should fail for any reason, the pumped product acts on the diaphragm and forces the seal rings together. The pumped product is again denied access to the main seal.

Abstract: A shipping container is provided for accommodating a heavy, bulky article, such as riding lawn mowers or the like. The container includes a skid section, which subtends and supportingly engages the accommodated article; a tubular section of corrugated fibreboard which is secured to and extends upwardly from the skid section and embraces the accommodated article; and a cover section of corrugated fibreboard, which overlies the accommodated article and is secured to an upper portion of the tubular section. No corner posts or inner packing are required in order to enhance the stacking strength of the improved container.

Abstract: A hand-held combination power brush and suction cleaner unit having control means to selectively adjust and shut off suction air flow for brush working a surface without vacuum pick-up and with reserve motor power, the unit being particularly suited for use with dry particle cleaners.

Abstract: A two stage blender is capable of handling high viscosity liquid-powder mixtures. The mixture discharged from the first stage is directed to the second stage, from which it is discharged at a relatively high discharge pressure. The second stage further enhances the natural vacuum created within the first stage, so that powder is fed at a constant ratio for a wide variety of liquid flows. Selected internal parts of the blender are designed to permit cleaning the blender in place.

Abstract: A mop head for holding a removable mop includes first and second elongate support members that are movable relative to each other to clamp a mop therebetween. The support members are releasably connected to each other at one end by a projection which can be fitted into an opening, and are connected to each other at the other end by a spring-biased handle. The support members can be pivoted relative to each other to enable a mop to be removed and replaced easily. In an alternative embodiment, the support members can be displaced relative to each other by a movable portion of a handle.

Abstract: A system for cleaning cone/shake makers in place. Cone/shake makers have at least one freezer for making ice cream cones or milk shakes. Each freezer has a product inlet, a product pump for pumping product from the inlet into the freezer, and at least one draw valve for dispensing the product in the freezer. The cleaning system has a mixing tank for mixing water with a cleansing chemical, the mixing tank having a capacity of less than one-fourth the volume of the water and cleansing chemical mixture to be used while cleaning a cone/shake maker. The system controllably provides the cleansing chemical to the mixing tank at a rate corresponding to the rate at which water flow into the mixing tank, thereby making a cleansing chemical solution of predefined concentration on the fly as the mixture is being used to clean the cone/shake maker.

Abstract: The arrangement for switching on and off of a vacuum cleaner comprises a switch which is integrated in a printed circuit board disposed below the cover of the vacuum cleaner housing. In the cover there is formed a resilient tongue having an upwardly projecting handle portion so that a bowl-shaped cavity is created in the free end of the resilient tongue. The switch extends into said bowl-shaped cavity and is operated by means of the resilient tongue. The production and mounting of the arrangement for switching on and off of the vacuum cleaner require only low expenditure of labor.

Abstract: A drainage system for expressing liquids and fluids from fibrous materials. The system includes a plurality of spaced apart compression elements each retained in juxaposition one to another so as to have a fluid escape slot between each adjacent compression element. Each compression element has a longitudinal passageway therethrough each having an inlet and an outlet which is inwardly tapered toward its outlet. The combination of passageways through each compression element forms a compression conduit whose inlet and outlet generally functionally coincide with the intake and exit, respectively, of the drainage system. The fibrous material to be expressed is introduced into the system's intake under pressure, the fibrous material being compressed as it is forcably urged through each tapered passageway, the expressed fluids exiting the compression conduit radially outwardly through fluid escape slots.

Abstract: A press apparatus mechanical dwell linkage comprises a pair of cam plates, one of which is fixed and the other pivotable, positioned in side-by-side parallel relationship. An operating arm is connected to the moving die in a press apparatus and simultaneously engages cam slots in each cam plate to transmit cam slot curvature and direction in the fixed cam to pivoting motion of the pivotable cam. A workpiece manipulating link oscillates with said pivotable cam to transversely change the position of a workpiece between the dies. The cam slots cooperate to introduce a dwell period in the work manipulating link at the start of, and end of, its workpiece-changing motion.

Abstract: A dual vacuum cleaner is disclosed which includes generally a power unit, a small tank, and a large tank. The power unit includes a motor and an impeller, and is complementary to an access opening of the small tank and also complementary to an access opening of the large tank. The power unit may be fastened to either the small tank or the large tank for selective operation as a small portable vacuum cleaner or as a large wheeled tank-type vacuum cleaner.

Abstract: The fabric cleaning system for cleaning a fabric such as the wire on a paper machine includes a cleaning station through which the fabric continuously passes. In the station cleaning fluid is directed onto a surface of the fabric, contacts the fabric to remove at least some of the debris and is collected in a collecting chamber. The dirty fluid is cleaned of debris in a cleaner such as a screen and is then returned and re-used to clean the fabric. Preferably the cleaning fluid is applied to the fabric through slots with their outlet openings adjacent the fabric and formed by tapered passages that diminish in height in the direction of the travel of the fabric. Preferably the slots extend the full width of the fabric.

Abstract: Suction nozzle for use in connection with a vacuum cleaning device for cleaning simultaneously the vertical surface (3) of a plinth (5), which is provided with a textile covering, and the immediately adjacent floor surface (2) likewise provided with a textile flooring. The suction nozzle (1) is provided with two suction openings (7 and 8) arranged approximately perpendicularly relative to each other so that the horizontal suction opening (7) rests on the floor surface (2) to be cleaned while the vertical suction opening (8) is in contact with the vertical surface (3) of the plinth (5). For increasing the cleaning effect, at least one rotating, mechanincally driven brush (5) is provided within the horizontal suction opening (7) and the vertical suction opening (8).

Abstract: A probe is employed for removing dust from moving webs, paper webs for example. It has at least one electrostatic high-voltage electrode, at least one blower for gas, preferably air, oriented against the direction that the web travels in, and a vacuum channel for suctioning up the dust-laden gas. The pointed or blade-shaped subsidiary electrodes in the high-voltage electrode (10) lie in a plane that does not parallel the web (7). The direction that the row of round and/or slotted nozzles (12) in the blower (11) blow along lies in another plane downstream of the high-voltage electrode (10). The two planes intersect at a line that lies in the plane of the web (7) and extends across it. The round and/or slotted openings (14) into the vacuum channel (13) are on the other hand positioned upstream of the high-voltage electrode (10) in the web-travel direction (8).

Abstract: A vacuum mop head having a scrubbing pad, a front squeegee in a front vacuum pickup slot, and a rear squeegee in a rear vacuum pickup slot has a vacuum outlet divided effectively between the two pickup slots. Side walls of a vacuum passageway extend downward from the top of the mop head and are covered by a plate that supports a liquid detergent dispensing system and encloses the vacuum passageway from the vacuum outlet to the front vacuum pickup. The upper half of the vacuum outlet evacuates the vacuum passageway to the front vacuum pickup, and the lower half of the vacuum outlet directly evacuates the rear vacuum pickup.

Abstract: An apparatus for feeding and metering fluid components to a mixing head, in particular for metering and feeding reactive chemical components to a high pressure mixing head. The apparatus comprises at least a first and second transfer cylinder whose control unit is fed with hydraulic fluid from a single source of constant pressure, and whose component pumping unit is connected to a tank for the component, respectively to an inlet aperture for the component in a chamber of the mixing head, by means of a proportional servo valve which is controlled in relation to the rate of flow of the components so as to keep both the pressure and the flow of the components to be mixed constant.

Abstract: A locking structure for releasably retaining a vacuum cleaner canister lid in closed position across a tool storage space in the hood portion of the canister. An arrangement of cooperating surfaces on the lid and hood is provided for permitting automatic latching of the lid in the closed position while permitting facilitated movement of the lid to an open position by a user when desired. The surfaces are defined by portions of the lid and hood formed integrally therein for low cost manufacture of the latching system.