Patents by Inventor W. Gerald Lott

W. Gerald Lott has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6796704
    Abstract: An eductor mixing device (10) has a main body or housing (28) of a generally cylindrical shape and an inner tube (42) for one component to be mixed with a liquid is mounted in main body (28) with a vortex chamber (56) formed in an annulus between the main body (28) and the inlet flow tube (42). Pressurized liquid enters the vortex chamber through a generally rectangular entrance opening (36) along an arcuate surface (42) which smoothly merges with the cylindrical surface (30) of the main body or housing (28). A liquid in a swirling motion moves in a descending helical path about inner tube (42) and passes through a gap G between coaxial frusto-conical surfaces (55) and (68) of the converging inner nozzle (52) of the inner tube (42) and an outer coaxial liquid nozzle (60) of diffuser ring (58) .
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: September 28, 2004
    Inventor: W. Gerald Lott
  • Patent number: 6609638
    Abstract: A flow promoter to promote flow of material in a hopper or bin container comprises a body having an inlet orifice, an outlet orifice, and an arrangement of peaks, ridges, slopes and radial lobes provided at the inlet end to cooperatively create stress points in the material. An embodiment of the invention comprises a removable flow promoter that can be inserted into a container.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: August 26, 2003
    Inventor: W. Gerald Lott
  • Patent number: 6024874
    Abstract: A hydrocyclone separator (10) has an outer housing (12) including an upper housing portion (14) and a lower housing portion (16). Upper housing portion (14) has a cylindrical chamber (22) and an involuted entrance (20) to cylindrical chamber (22). A vortex finder tube (24) has a flaring lower end portion (29). A solid core (34) is mounted within finder tube (24) and extends downwardly from finder tube (24) a distance at least equal to 11/2% times the inner diameter of the entrance orifice or opening (30) of finder tube (24). The outer peripheral surface (40) of solid core (34) tapers downwardly and is generally parallel to the inner peripheral surface (44) of lower tapered chamber (46). A strong interface (48) is formed between the downwardly extending outer vortex and the upwardly extending inner vortex with minimal turbulence and intermingling of particles between the inner and outer vortices.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: February 15, 2000
    Inventor: W. Gerald Lott
  • Patent number: 6000839
    Abstract: A continuous static mixing apparatus includes mixing disks. Each of the mixing disks has a set of symmetrically distributed nozzles therein that accelerate the flow and that create a mixing turbulence in the flow. Typically, the mixing apparatus combines the outlet flows of the mixing disks to provide a collision therebetween and, thus, increased turbulence and mixing. Communication passageways connect the material supplies to the mixing apparatus and direct the materials through the mixing disk. The materials may be combined either upstream or downstream of the mixing disks. An eductor may be used to combine the materials upstream of the mixing disks.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: December 14, 1999
    Assignee: Flo Trend Systems, Inc.
    Inventor: W. Gerald Lott
  • Patent number: 5775443
    Abstract: A rotary drill bit (10) has a jet pump device including a plurality of jet pump assemblies (26). Each jet pump assembly (26) has an outer housing (28) secured to the bit body (14) and receiving any elongate nozzle member (46) therein in concentric relation to form an annular chamber (48) therein. A flow restriction (38) is mounted within the outer housing (28) above the nozzle member (46). The elongate nozzle member (46) has a lower nozzle port (50) and an opposed upper nozzle port (52). Drilling fluid from the central bore (20) is directed to the nozzle member (46) where the drilling fluid is divided into two streams, one stream for flow through lower nozzle port (50) against the formation and the outer stream for flow through the upper nozzle port (52) and flow restriction (38) to create a low pressure area or suction in an annular chamber (48). A low pressure cross sectional area is formed at the bottom of the bore hole (B, FIG.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: July 7, 1998
    Assignee: Nozzle Technology, Inc.
    Inventor: W. Gerald Lott
  • Patent number: 5775446
    Abstract: A nozzle insert for a rotary rock bit has an orifice with a generally circular central region and a plurality of angularly spaced, non-circular outer regions around the periphery thereof so that flow of mud through each outer region develops a vortex pattern that increases entrainment of rock particles to prevent bit balling, and decreases overbalance pressure to enhance rate of penetration.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: July 7, 1998
    Assignee: Nozzle Technology, Inc.
    Inventor: W. Gerald Lott
  • Patent number: 5765946
    Abstract: A continuous static mixing apparatus includes mixing disks. Each of the mixing disks has a set of symmetrically distributed nozzles therein that accelerate the flow and that create a mixing turbulence in the flow. Typically, the mixing apparatus combines the outlet flows of the mixing disks to provide a collision therebetween and, thus, increased turbulence and mixing. Communication passageways connect the material supplies to the mixing apparatus and direct the materials through the mixing disk. The materials may be combined either upstream or downstream of the mixing disks. An eductor may be used to combine the materials upstream of the mixing disks.
    Type: Grant
    Filed: April 2, 1997
    Date of Patent: June 16, 1998
    Assignee: Flo Trend Systems, Inc.
    Inventor: W. Gerald Lott
  • Patent number: 5664733
    Abstract: An improved fluid mixing nozzle and method, in which a first fluid flows therefrom to mix with a second fluid external the nozzle, for inducing vortex creation and chaotic turbulent flow. The nozzle has a body with a cavity extending therethrough from the inlet end to the outlet end. The cross sectional area of the inlet orifice of the nozzle is greater than its outlet orifice cross sectional area. The outlet orifice cross section area shape has a substantially circular central portion and at least one (but typically more than one) protrusion extending from the perimeter of the central portion. Generally, the protrusions are smaller in cross sectional area than the central portion, are equally spaced about the central portion perimeter, and have a length to width ratio from 1 to 2. Functionally applying the above described nozzle is a method of improved mixing, of creating chaotic turbulent flow, and of inducing vortex creation.
    Type: Grant
    Filed: September 1, 1995
    Date of Patent: September 9, 1997
    Inventor: W. Gerald Lott
  • Patent number: 5653298
    Abstract: A method and abstract of removing a surface subject to a subsurface pressure and an environmental surface pressure at least equal to the subsurface pressure, which comprises jetting fluid through a nozzle facing and located a predetermined distance from said surface, said nozzle being shaped to eject the fluid in a steam having a higher core pressure than said environmental pressure, said higher pressure stream having adjacent thereto at least one zone of pressure negative relative to said subsurface pressure, said distance being predetermined to expose said surface to said zone of negative pressure, whereby said surface is caused to explode into said zone of negative pressure from the force of said subsurface pressure.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: August 5, 1997
    Assignee: Vortexx Group, Inc.
    Inventors: Norval Roland Dove, Stephen Kelly Smith, W. Gerald Lott
  • Patent number: 5632349
    Abstract: A drill bit for removing a surface subject to a subsurface pressure and an environmental surface pressure at least equal to the subsurface pressure, which comprises jetting fluid through a nozzle facing and located a predetermined distance from said surface, said nozzle being shaped to eject the fluid in a steam having a higher core pressure than said environmental pressure, said higher pressure stream having adjacent thereto at least one zone of pressure negative relative to said subsurface pressure, said distance being predetermined to expose said surface to said zone of negative pressure, whereby said surface is caused to explode into said zone of negative pressure from the force of said subsurface pressure.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: May 27, 1997
    Inventors: Norval R. Dove, Stephen K. Smith, W. Gerald Lott
  • Patent number: 5322222
    Abstract: A spiral jet mixer for mixing fluids comprises an elongated body having a first inlet nozzle for introduction of a primary fluid, a mixing chamber having a diverging wall and a converging wall, a plurality of angled, helical passageways in the diverging wall for introduction of a secondary fluid into the mixing chamber in a spiralling turbulent, initially convergent flow pattern. Removable inlet nozzles allow a plurality of inlet nozzle orifice diameters.
    Type: Grant
    Filed: October 5, 1992
    Date of Patent: June 21, 1994
    Inventor: W. Gerald Lott
  • Patent number: 4871449
    Abstract: Discloses transportable liquid clarifying and screw conveyor/compactor liquid-solid separator apparatus which includes a pressureable clarifier vessel portably mounted on a base with a top and sides converging to the bottom of the vessel for attachment to a sludge disposal apparatus. A sludge inlet enters the top of the vessel and extends to near the bottom of the vessel. An effluent discharge flow control valve is connected through a conduit in the top of the vessel to provide a designated back pressure within the vessel while controlling the discharge flow of effluent liquid from the vessel. The sludge disposal apparatus includes an elongated screw conveyor/compactor mounted at an angle and extending upwardly from the vessel bottom. The compactor housing is tapered to compact the sludge as the screw conveyor carries the sludge to a liquid extraction section. The liquid extraction section has a screen tapered to further compact the slurry while extracting liquid being forced out of the slurry.
    Type: Grant
    Filed: June 27, 1988
    Date of Patent: October 3, 1989
    Inventor: W. Gerald Lott
  • Patent number: 4871454
    Abstract: Discloses apparatus for separating the solids from a liquid of a sludge or slurry which includes a slurry source, a slurry container receiving slurry from the source and a filter cage removably mounted inside the container. The filter cage includes a cage frame, a supported screen liner mounted within the cage and a filter liner removably fitted inside the liner. The container has a liquid drainage conduit removably connected to a suction device for removing liquid from the drainage chamber. The container is constructed and adapted to be picked up, carried about, and tilted to remove solid material deposited within the filter cage. The filter cage is constructed and adapted to be hoisted up out of the container and separately moved about and tilted to remove solids deposited within the filter cage. A liquid injection apparatus may be provided for injecting a selected amount of a flocculating agent into the slurry received into the container to cause flocculation of solid particles in the slurry.
    Type: Grant
    Filed: June 27, 1988
    Date of Patent: October 3, 1989
    Inventor: W. Gerald Lott
  • Patent number: 4818398
    Abstract: A filter system including an elongated cylindrical vessel body having a flow inlet connected to inlet conduit, a flow outlet connected to an outlet conduit, a closed end, and a movable cover member. The conduits are adapted for respective connection to control valves. A hinge connects the cover member to the vessel body for pivoting the cover member from closed position to open position. A solids separator element disposed within the body has a hollow porous member attached about periphery of a support ring. The support ring has an annular flat surface abutting an annular flat surface of the support flange. An arcuate resilient spring is connected to opposite sides of the support ring and extends to be forcefully deformed against the inner side of the cover member when cover member is closed.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: April 4, 1989
    Inventors: W. Gerald Lott, Glen E. Grant
  • Patent number: 4634535
    Abstract: A mud slurry cleaning method including steps of distributing a mud slurry across an inclined primary separation screen, vibrating the primary screen through selected movement, cycle and frequency to screen out the liquid and selected particles, concurrently changing the geometric shape of the openings of the primary screen through each vibration cycle to free particles as might tend to lodge while concurrently impacting the primary screen at many spaced apart impact points to loosen particles tending to lodge, cyclonically separating the screened mud into a finally cleaned slurry and a thickened slurry including particles originally included in the original slurry, mixing the thickened slurry with a portion of the screened slurry to form a liquified slurry, distributing the liquified slurry across an inclined gleaning screen, and vibrating the gleaning screen as above described to screen out liquid and desired particles while concurrently changing the geometric shape of the openings of the screen and concurre
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: January 6, 1987
    Inventor: W. Gerald Lott
  • Patent number: 4571296
    Abstract: An integrated and transportable two stage drilling mud desilting apparatus in combination. Includes a first-stage mud inlet manifold, a second-stage inlet manifold, and a mud outlet manifold all mounted together as part of a separator body. Has a second-stage inlet reservoir mounted and connected to provide drilling mud into second-stage inlet manifold and a solids collection reservoir. Has a plurality of first-stage hydrocyclones mounted to receive mud from first-stage inlet reservoir, to separate first size solids from mud, and to discharge first size solids into solids collection reservoir. Has a plurality of second-stage hydrocyclones mounted to receive mud from second-stage inlet manifold, to separate smaller second size solids from mud, to discharge mud separated from smaller second size solids into mud outlet manifold for reuse, and to discharge second size solids into solids collection reservoir.
    Type: Grant
    Filed: August 15, 1984
    Date of Patent: February 18, 1986
    Assignee: Flo Trend Systems, Inc.
    Inventor: W. Gerald Lott
  • Patent number: 4546783
    Abstract: An apparatus for cleansing a stream of drilling fluid fouled drill cuttings having a housing divided into a plurality of compartments each designed to retain cleansing fluid. A spinning force is imparted into the incoming fouled drill cuttings in an inlet chamber wherein cleansing fluid is intimately mixed with the fouled drill cuttings. A decanting chamber removes liberated drilling fluid from the cuttings and disposes of such drilling fluid from the apparatus via a drain trough assembly. The underflow from the decanter is passed through a solids concentrating assembly wherein the coarse solids are deposited in a concentrating assembly bottoms chamber wherein the settled drill cuttings are removed from the apparatus. The overhead stream from the solids concentrating assembly is directed to a second decanter for removal of any remaining drilling fluid and fine drill cuttings entrained therein from the apparatus via the drain trough assembly.
    Type: Grant
    Filed: September 27, 1983
    Date of Patent: October 15, 1985
    Assignee: Flo Trend Shares, Inc.
    Inventor: W. Gerald Lott
  • Patent number: 4352739
    Abstract: A liquid cleaning system for liquid that is substantially continuously circulated and which becomes contaminated with solid particulate and debris during circulation. The liquid cleaning system, which is particularly advantageous to cleaning liquid that is circulated within a petroleum well bore during completion and workover activities, incorporates a vibratory screen separator for accomplishing preliminary separation of large particulate and debris from the contaminated liquid and which also incorporates a filtration bank having a plurality of filters that are each interconnected with inlet discharge and drain headers. Filter bank incorporates a valving system having the capability of accomplishing backflushing by circulating clean fluid in reverse manner through selected ones of the filters to remove collected solid particulate therefrom and transport the removed particulate to the drain header.
    Type: Grant
    Filed: May 11, 1981
    Date of Patent: October 5, 1982
    Inventors: John E. Oliver, Jr., W. Gerald Lott