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| Number | Title | Issue Date |
| 7195084 | Systems and methods for storing and handling drill cuttings Vessels for selectively holding drilling cuttings material and methods employing such vessels; the vessels, in at least certain aspects, having a body with a hollow container with an interior space for receiving drilling cuttings material and from which the material... | 03/27/2007 |
| 7080960 | Apparatus and method for transporting waste materials An apparatus for transporting solid waste drill cuttings material produced in the drilling of an oil or gas well, the apparatus including: a waste supply apparatus; a feeder to transport the material; a pneumatic conveying apparatus to which the material is transfer... | 07/25/2006 |
| 7066689 | Vacuum loading system Apparatus for providing granular material to a loading hopper preparatory to processing includes a receptacle receiving material prior to processing thereof by machinery supplied by the hopper with a top including a first valve for selectably connecting the receptac... | 06/27/2006 |
| 6936092 | Positive pressure drilled cuttings movement systems and methods Methods for moving drilled cuttings, the methods, in certain aspects, including conveying with air under positive pressure, drilled cuttings to flow conduit apparatus; applying air under positive pressure to the flow conduit apparatus to continuously move the drille... | 08/30/2005 |
| 5584613 | Carrier automatic braking system A pneumatic transmission system having a carrier automatic braking system contains a transport conduit having a first end and a second end and being capable of permitting the transfer of a carrier therethrough, a first station for sending and receiving a ... | 12/17/1996 |
| 5147152 | Pneumatic suction conveyor means for the gravimetric dosing of bulk material components A suction conveyor or delivery arrangement for the gravimetric allocation of pourable material components to several demand stations has a storage container containing in each case one component connected by, in each case, one delivery line to a distribut... | 09/15/1992 |
| 5114280 | Vacuum type sewage collecting system and vacuum valve controller for the same A vacuum type sewage collecting system, for collecting sewage from a plurality of houses or the like, stores sewage in a sewage reservoir and then delivers the sewage to a sewage treatment station through a vacuum valve and a vacuum sewage pipe. A control... | 05/19/1992 |
| 5064314 | Vacuum sewerage system with increased lift capabilities having electric air admission controllers An improved vacuum sewerage system for transmitting sewage through an intermittently opened sewage control valve of a transport conduit by means of differential pressure. The vacuum conduit is laid out in a saw-toothed fashion, having a riser, a low point... | 11/12/1991 |
| 5044836 | Electric air admission controller An electric air admission controller ("EAAC") for automatically opening and closing an air control valve connected to a vacuum sewage transport conduit with a sewage control valve, independently of the level of accumulated sewage upstream of the sewage co... | 09/03/1991 |
| 4904574 | Method for stabilizing organic base material to light A method of stabilizing organic base materials to light by allowing an organic base material to coexist with at least one type of metal complex which can be represented by the following general formula: ##STR1## wherein R1 to R4... | 02/27/1990 |
| 4697962 | Control system for a continuous process venturi accelerated pneumatic pump An apparatus for feeding product to a pipeline via a venturi assembly has first and second tanks adapted to separately hold a quantity of product. The product is fed to the tanks from a supply hopper and enters each tank through an upper opening which acc... | 10/06/1987 |
| 4200412 | Control for pneumatic conveying system A dense phase pneumatic conveying system with pressurized air applied at the source to deliver granular material through a conveying line to a receiver with a shut-off valve having an air leakage path located in the conveying line operated by a sensing el... | 04/29/1980 |
