| GAST MANUFACTURING, INC. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110143311 | COMBINATION VERTICAL ROTARY VANE SUCTION PUMP AND LIQUID SEPARATOR - A compact suction and separation device is shown and described. The suction and separation device includes a pump and a separator. The pump includes a vertically oriented rotary vane pump comprising a suction inlet and an exhaust outlet. The separator includes a collector configured to receive combinations of solids, liquids and air. The separator separates solids and/or liquids from the air. Air from the separator is routed from an air discharge into the suction inlet of the pump. Solids and/or liquids are drained from a liquids/solids discharge of the separator. The separator may be gravity-based or centrifuge-type separator driven by the pump motor. | 06-16-2011 |
| 20090250395 | Wastewater Treatment System - Wastewater treatment systems are disclosed with improved aeration tanks. The improved aeration tank includes an inverted frusto-conical clarifier and a submersible aerator pump disposed between the bottom of the aeration tank and the interior of the clarifier. The aerator pump is connected to an air inlet line that can pass downward through the clarifier and a plurality of bubble outlet lines that extend outward from the pump both radially and tangentially towards the sidewall of the aeration tank. As a result, bubbles rise upward through the aeration space disposed outside of the clarifier and around the aeration space or around the clarifier for improved mixing. The system may also include additional tanks such as a pretreatment tank and pump tank which are designed with baffled sidewalls for anchoring purposes. The vertical slopes of the sidewalls of the pretreatment and pump tanks are of the same magnitude but opposite to the vertical slope of the sidewall of the aeration tank thereby enabling the sidewalls of the pretreatment and aeration tank to nest together and the sidewalls of the pump and aeration tank to nest together. Methods of retrofitting existing water treatment systems and methods of treating wastewater are also disclosed. | 10-08-2009 |
| 20090238709 | Magnetic vane ejection for a rotary vane air motor - A magnetic rotary vane pump is disclosed which includes a rotor disposed within a casing that comprises a cavity having an inlet and an outlet. The rotor includes at least one radial slot and at least one vane carried by the radial slot. The vane includes an inner edge directed towards a central axis of the rotor and an outer edge directed towards the casing. The inner edge of the vane is connected to a first magnet. The slot in the rotor includes an inner wall that abuttingly engages or faces the inner edge of the vane when the vane is fully received within the slot. The inner wall of the slot is connected to a second magnet. The two magnets are arranged so that like pole of the magnets face each other thereby biasing the vane out of the slot and against the inner wall of the casing as the rotor rotates. Accordingly, no spring or pin is required to bias the vane outward against the casing or into recesses or slots disposed in the casing wall. The resulting design may be operated faster than conventional vane pumps and with less lubrication or no lubrication than conventional vane pumps. | 09-24-2009 |
| 20090016917 | Compact Dual Rocking Piston Pump with Reduced Number of Parts - A dual rocking piston pump is disclosed which includes a first piston with a first connecting rod eccentrically mounted to a rotor shaft and a second piston with a second connecting rod eccentrically mounted to the rotor shaft. The rotor shaft passes through a first bearing and a second bearing before being connected to a rotor body. The rotor body is disposed within a stator. The first and second bearings and stator are supported by a bracket. The bracket includes a hub which, in turn includes a first end connected to a wall at an opening in the wall. The hub also includes a second end. The first end of the hub supports the first bearing at the wall and the second end of the hub supports the second bearing. Both the first and second bearings are disposed to “in front” of the motor or in front of both the rotor and stator. Because support for the rotor is provided entirely in front of the motor, no rear bell housing is required and because a single bracket supports the bearings, rotor and stator, fewer parts are required thereby making the pump lighter and more compact. | 01-15-2009 |
