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Attorney: Pravel, Wilson & Gambrell


Number of patents: 122
Last date: July 03, 1979

1        
NumberTitleIssue Date
4159810Cassette re-winding device
A cassette re-winding device including a compartmented housing having a hinged lid to receive a cassette in one compartment having a rewind spindle connected to a battery operated motor located in the other compartment; and, an automatic switch positioned...
07/03/1979
4156421Method and apparatus for producing thermal vapor stream
Method and apparatus for producing a thermal vapor stream for injecting into a subterranean formation for the recovery of liquefiable minerals therefrom, including a pressure vessel containing a high pressure combustion chamber for producing a heating gas...
05/29/1979
4155403Process for locating residual or dormant hydrocarbons in petroleum reservoirs
A subsurface earth formation or petroleum reservoir, either previously or presently producing petroleum hydrocarbons, such as oil and natural gas, is analyzed. From production data, the actual fluid flux of the hydrocarbons to each well penetrating the fo...
05/22/1979
4152129Method for separating carbon dioxide from methane
A method is disclosed whereby carbon dioxide and methane in a gaseous mixture can be separated with little energy consumption when the gaseous mixture contains large amounts of carbon dioxide, i.e., from about 30 to about 90 mol percent. The method involv...
05/01/1979
4148445Apparatus and method for dispensing and retrieving flexible pipe
Flexible pipe used to supply water to remotely located drilling rigs, typically made from a suitable synthetic resin such as polyethylene, is laid and retrieved from spools or reels mounted with a vehicle as the vehicle is moving. The vehicle may be a tru...
04/10/1979
4130076Single point mooring apparatus
A single point mooring apparatus for loading a tanker from a sub-sea source including surface and submerged flotation chambers connected by a hollow mooring line which has its lower end releasably connected to a permanent pile anchor in the ocean bottom. ...
12/19/1978
4127990Drainage structure forming method
A new and improved method for forming a drainage structure, such as a manhole for a subterranean sewer pipe. In a first embodiment, a removable outer form is positioned in an excavation in the earth extending to the sewer pipe so that the earth surroundin...
12/05/1978
4127780Periodic sampling concentration indicator
Apparatus for indicating the concentration of a particular constituent in a fluid including a sensing device for sensing the concentration of a particular constituent in a fluid and for providing a response; and an electronic device including a differenti...
11/28/1978
4120418Method of producing a barrier in a thermally insulated container
A method for producing a barrier in a thermally insulated container lined with polyurethane foam for storage or transport of liquefied gases, wherein a plurality of layers of an epoxy resin formulation and a glass-fiber material are applied in a particula...
10/17/1978
4120410Apparatus for the supply of fuel powder to a gas-pressurized vessel
An apparatus and method for the supply of pressurized fuel powder to a pressurized reactor, comprising the steps of, and apparatus for, supplying powder to a vessel with a centrifugal pump to inject powder into the vessel by centrifugal force, and maintai...
10/17/1978
4120051Mixing apparatus
A mixing apparatus for mixing fluids, such as drilling muds, in a reservoir, each fluid having different densities requiring different torques for proper mixing thereof, with the mixing apparatus having provisions therewith operatively controlling the mot...
10/10/1978
4118925Combustion chamber and thermal vapor stream producing apparatus and method
A new and improved method and apparatus for burning a hydrocarbon fuel for producing a high pressure thermal vapor stream comprising steam and combustion gases for injecting into a subterranean formation for the recovery of liquefiable minerals therefrom,...
10/10/1978
4118850Gasket forming apparatus
A metal forming apparatus and method which uses the apparatus for closing the metal shell at a corner of a double jacketed gasket assembly. The apparatus includes a roller hammer means having a metal forming tool rotatably mounted eccentrically in a power...
10/10/1978
4117312Self-limiting temperature electrical heating cable
An electrical heating cable which limits power output once an established temperature limit is reached. The cable includes a high-resistance element and a temperature-sensitive variable resistance element electrically connected in series between two elect...
09/26/1978
4114618Catheter assembly
A catheter assembly insertable into a blood vessel for directing medicinal fluids intravenously into the vessel while providing for substantially uninterrupted flow of blood through the vessel; and, an anchoring flap mountable onto the catheter assembly o...
09/19/1978
4114419Method of testing an analyzer to determine the accuracy thereof and a volumetric primary standard apparatus for doing same
A method of testing an analyzer to determine the accuracy thereof and a volumetric primary standard apparatus for doing same, the method of which includes flowing a carrier gas stream at a known flow rate, periodically injecting a measured quantity of sam...
09/19/1978
4114201Ventilated head cover
The present invention pertains to a ventilated head cover having a plurality of openings in the crown and also between the brim of the head cover and the sweatband and/or between the sweatband and the wearer's head to permit air to freely circulate up int...
09/19/1978
4113901Method of applying a layer of polyurethane foam onto a cut or ground surface of polyurethane foam
A method of manufacturing a heat-insulating polyurethane foam lining of a container having a rigid outer shell with flat inner wall surfaces that intersect to form corners of the container for transport or storage of liquefied gases is disclosed. The flat...
09/12/1978
4113332Secret compartment case
A secret compartment case having a flexible housing, an inner drawer and an outer drawer, the flexible housing having a release member formed therewith for operatively connecting the inner drawer with the housing, the inner drawer being releasable from th...
09/12/1978
4112620Smoke and heat vent
A new and improved smoke and heat vent including a frame assembly pivotally attached to a curb member adapted for placement on the roof of a building or the like. The frame assembly supports a dome-shaped cover and is movable between a closed, dome suppor...
09/12/1978
4109945Apparatus for connecting together flowline end portions
A grip-seal apparatus for connecting together flowline end portions including first and second housings having alignable bores therethrough and an intermediate housing connection section for connection to each of the first and second housings and also hav...
08/29/1978
4109386Signal-producing pipe caliper
A new and improved signal-producing pipe caliper adapted to be moved through a section of pipe to detect internal variations in the inside surface of the pipe, and to transmit analog signals corresponding to such variations for suitable recording at a loc...
08/29/1978
4107672Apparatus and method for detecting cracks in the heat-insulating lining of a container for cold liquids
A new and improved apparatus for detecting cracks in the heat-insulating liner of a container for cold liquids, wherein a plurality of breakable or frangible electrical conductors and a barrier means having a woven mat of glass-fiber material are incorpor...
08/15/1978
4104930Final drive guard
A wire guard for protecting the final drive shaft on a crawler tractor to prevent the accumulation of wire strands on the final drive shaft between the drive sprocket and the shaft housing or case. The guard comprises overlapping and interlocking sleeve s...
08/08/1978
4100239Method for making hollow panels
Method for making hollow plastics insulating wall panel. The plastic material, in a flowable form, is continuously forced about a core to form an enclosed central cavity or chamber. The continuous plastic material is then severed and cavity sealed in a va...
07/11/1978
4099582Drilling fluid compensation device
In an offshore oil well system wherein a floating well platform is connected through a telescoping cylindrical member to a marine riser extending down to the drilling area, the telescoping cylindrical member being mounted for slidable, sealable movement w...
07/11/1978
4097202Auxiliary compressor assembly
An auxiliary compressor assembly for a conventional compressor having an auxiliary cylinder adapted to be releasably mounted with the conventional compressor and a head adapted to be removably mounted the auxiliary cylinder....
06/27/1978
4094930Moisturized air-filter for internal combustion engines
A new and improved apparatus for adding moisture to the air supplied to the air intake of an internal combustion engine, wherein a container means chamber is partially filled with a water supply leaving an air passageway thereabove and including an air in...
06/13/1978
4088152Low friction electro-hydraulic pilot valve
A solenoid actuated pilot valve for handling high pressure fluids wherein a single inlet and outlet shear seals are used on the gate which is mounted for movement on roller bearings to reduce frictional loads in moving the pilot valve gate in an unbalance...
05/09/1978
4087864Dispensing vest for patients receiving hyperalimentation treatment
A vest is provided which patients undergoing intravenous hyperalimentation (total parenteral nutrition) treatment may wear, permitting the patients/recipients to move about and continue to receive intravenous nourishment. The vest is provided with pouches...
05/09/1978
4087098Seal for repair of a shaft or the like and a method for doing same
A seal device adapted to be disposed between two surfaces, usually a shaft surface and a mechanical seal and a method for repair of a shaft and the like, wherein the shaft is formed having a longitudinal taper for receiving a seal to be snugly fitted ther...
05/02/1978
4085618Composite sampling system and rotatable sampling valve therefor
A sampling system for obtaining composite samples of flow streams is provided. The system includes a rotatable sampling valve which periodically removes a fixed sample volume from the stream for storage in a sample container....
04/25/1978
4085509Apparatus for compensating for the heaving of a floating drilling platform for connection with apparatus for measuring the rate of penetration of pipe run into an offshore well
Apparatus adapted to compensate for the heaving of a floating offshore drilling platform, which heaves relative to the ocean bottom due to wave action of the water in which the platform is floating, which heave-compensation apparatus is adapted to be conn...
04/25/1978
4082657Separator apparatus
A new and improved separating device for separating particulate from a fluid stream including a plurality of screen units which are releasably held in a screen unit mounting assembly by inflatable tubes; the screen unit angular position is adjustable by a...
04/04/1978
4082511Method for protecting an internal combustion engine by determining the change point of the lubrication oil
A new and improved on-site method for protecting an internal combustion engine in the field for maximizing service time by determining the change point of the lubrication oil when the TBN declines to a predetermined level. The on-site method utilizes a ne...
04/04/1978
4082147Method and apparatus for a surface control system for: subsurface safety valves
Two embodiments of a surface controller system apparatus and their method for use with a surface controlled subsurface safety valve are disclosed. Both surface controller systems are responsive to an emergency shutdown signal for enabling closing of the s...
04/04/1978
4082002Gauge flange
A gauge flange providing a means for mounting a gauge in communication with service pressure and having means for selectively closing off such fluid communication to isolate the gauge for removal and/or repair....
04/04/1978
4081111Adjustable volume setting mechanism for repeatable fluid discharge device
A new and improved dispenser device and method for accurately dispensing selected volumes of fluid and for permitting repetitive dispensing of the fluid by the manipulation of a stroke-setting mechanism that selectively varies the amount of liquid pumped ...
03/28/1978
4080761Control valve assembly
A control valve assembly for regulating the mixing of abrasive from a pressurized tank with high pressure fluid during abrasive blasting operations having a tubular abrasive flow pipe and an abrasive control nozzle within a control valve housing, with pro...
03/28/1978
4080272Cathodic protection method and apparatus
Method and apparatus for determining the true cathode polarization potential for automatically regulating the impressed current in a cathodic protection system....
03/21/1978
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