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US 6,382,922 B1Granted
Grout pumps, control boxes and applicator tools, and methods for using the same
AssigneeMudMaster, LLC
InventorsDarrin Wayne Lewis, Robert A. Marrott
Life of this patent
Estimating the term…
Abstract
A grout slurry pumping system, and a grout slurry control box and associated tools are described. Methods of using the pumping system and control box are also described. The pumping system and control box may be used separately or together. The pumping system maintains a grout slurry of desired consistency and can provide it through a hose to remote locations. The control box operates to apply grout to a work surface in desired quantities and in desired amounts according to a control valve.
Claims19
A grout pumping system comprising:
- a grout hopper,
- a grout pump capable of pumping grout,
- a grout pipe connecting said hopper with said pump in order to supply said pump with grout from said hopper,
- a turbine having a shaft,
- a grout pipe connecting said grout pump with said turbine, and
- an auger on said turbine shaft, said auger being located in said hopper.
3 more elements
A grout pumping system comprising:
- a grout hopper,
- a grout pump capable of pumping grout,
- a grout pipe connecting said hopper with said pump in order to supply said pump with grout from said hopper,
- a turbine having a shaft,
- a grout pipe connecting said grout pump with said turbine,
- an auger on said turbine shaft, said auger being located in said hopper,
- a pressure switch which switches said grout pump on when grout pressure reaches a predetermined low level, and which switches said grout pump off when grout pressure reaches a predetermined high level,
- a consistency valve in fluid communication with a water source,
- a grout pipe supplying pressurized grout to said consistency valve, and
- a consistency valve outlet leading to said hopper;
- wherein when grout within the system becomes sufficiently viscous, it forces said consistency valve open, allowing water to flow from said consistency valve to said hopper, thereby reducing grout viscosity;
- and
- wherein pumping of grout by said grout pump forces grout through said turbine thereby turning said turbine shaft, said turning of said turbine shaft in turning said auger, and turning of said auger forcing grout to said pump.
10 more elements
A grout pumping system comprising:
- a grout hopper,
- a grout pump capable of pumping grout,
- a grout pipe connecting said hopper with said pump in order to supply said pump with grout from said hopper,
- an auger located in said hopper and being capable of mixing grout in said hopper, and
- a pressure switch which switches said grout pump on when grout pressure reaches a predetermined low level, and which switches said grout pump off when grout pressure reaches a predetermined high level.
2 more elements
A grout pumping system comprising:
- a grout hopper,
- a grout pump capable of pumping grout,
- a grout pipe connecting said hopper with said pump in order to supply said pump with grout from said hopper,
- an auger located in said hopper and being capable of mixing grout in said hopper,
- a pressure switch which switches said grout pump on when grout pressure reaches a predetermined low level, and which switches said group pump off when grout pressure reaches a predetermined high level,
- a system hose for providing pressurized grout to a remote location,
- a control box attachable to said system hose in a remote location,
- a grout shutoff valve operating in conjunction with said control box, so that when a user exerts no force on said control box, said grout shutoff valve is on an OFF position and does not permit grout flow out of said control box, and so that when a user exerts a sufficient force on said control box, said grout shutoff valve is moved to an ON position to permit pressurized grout to flow out of said grout control box, and
- a fitting on said control box for accepting a grout applicator tool.
6 more elements
Dependencies are inferred from the claim text.