Other

Jorgensen Conveyors, Inc.

Clarmatic Industries, Inc.

Barnes Drill Co.

Robert J Fox

Merlin P Hoodlebrink

Keith K Nelson

Mark Preisser

Pool filter

An apparatus for removing solids from a liquid/solid mixture disposed in a tank and rising to a mixture level, the apparatus including a suction assembly defining a suction opening, the suction assembly linked to a vacuum that causes suction at the opening, a support assembly formed about the suction surface including first and second essentially circular housing walls having wall edges and a filter belt loop sealed to the edges and sized such that the belt is slack and subject to deformation between the edges, a belt section disposed to cover the suction opening and a processor controlling a motivator to periodically alter belt position with respect to the suction opening.

Media vacuum filter

A volumetric feed hopper is provided with a variable speed drive to vary the feed rate of the hopper. The hopper is further provided with adjustable legs with pivoting feet to enable the hopper to be installed a various heights and on uneven surfaces.

Portable variable speed volumetric feed hopper

A tipping pit water reclaiming system for concrete reclaimers which includes one or more tanks with a pivot support and hydraulic pistons for tipping the tanks to remove the settled solids. Clarified water from the tipping tanks overflows into a pump tank where it is returned by pump to the reclaimer. The pump tank includes a second pump for pumping excess clarified water into a storage tank for return to the tipping tank after the cement solids have been emptied out of the tipping tank. The second pump prevents the overflowing of water onto the ground from the tipping tank or pump tank as solids accumulate in the tipping tank. The second pump is controlled by float activated switches positioned at predetermined levels within the pump tank.

Tipping pit water reclaiming system

Filtering apparatus employs both pneumatic controls and a pneumatic drive to eliminate all electrical components. The filtering apparatus includes a perforate plate and a tank with a strip of filtering media supported on the plate. Contaminated liquid is supplied from above and clean liquid is removed from below the filtering media and plate. The filtering media is advanced across the plate by conveying apparatus. The pneumatic drive for the conveying apparatus is operated by pneumatic controls and a float which actuates the drive when the liquid in the tank rises to a predetermined level as the filtering media becomes plugged. The drive is shut off when the liquid drops to a lower predetermined level.

Pneumatically-operated filtering apparatus with filter movement

A filtering system includes a filter drum assembly. The system includes a filter tank with a conveyor in the bottom which removes contaminants from liquid in the tank. The filter tank also has supports therein by means of which the filter drum assembly is removably supported in the tank and can be removed as a single assembly. The filter drum assembly includes a filtering drum located in the tank and supported by a suction pipe connected by a separable fitting to a suction pump. A drive shaft is vertically positioned above the drum and is rotatably supported by an end wall of the drum. The shaft drives a wiper arm having a wiper blade in contact with the filtering drum wall and the blade is periodically moved around the drum wall to clean filter cake therefrom. The wiper arm is driven by a one-way clutch, an arm, and a fluid-operated ram which is also supported by the suction pipe. There are no flexible seals between the filtering drum and other components nor any seals between components which move relative to one another. The filter drum assembly can be removed from the tank simply by disconnecting the suction pipe and a supply line for the fluid-operated ram.

Filtering system

A fluid-operated, time delay control and system embodying same are set forth. The time delay control includes an accumulator chamber communicating with a source of fluid under negative pressure or vacuum and a second chamber having a partition dividing it into two parts, a first of which communicates with the accumulator chamber. The second part communicates with a vacuum-sensitive switch which is energized when sensing a vacuum of a predetermined value. The partition has a check valve for maintaining the vacuum switch in communication with a vacuum after the vacuum is released at the source and the pressure rises in the first part of the second chamber. An adjustable flow control valve in the partition slowly releases the vacuum which the switch senses. The switch then reverts to a de-energized condition when a predetermined value is reached. A filtering system incorporates the time delay control with the control controlling a vacuum break valve and a motor for moving a strip of filter media.

Time delay control and system embodying same

A drum with a wedge-wire filter screen is submerged in a dirty coolant tank and filters machine tool coolant when vacuum is applied to the inside of the drum by means of a suction line at one end of the drum. The vacuum draws the coolant through the screen and into the inside of the drum for discharge through the suction line. During the filtering process, a filter cake builds up on the outside of the screen and must be periodically removed therefrom. To remove the filter cake while enabling the use of a simplified sealing structure between the drum and the suction line, the drum is supported in a rotationally stationary position, a scraper is supported to rotate around the drum, and the scraper is intermittently indexed to shave filter cake from the screen.

Growing community of inventors

Bowling Green, OH, United States of America

Robert J Fox