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| Number | Title | Issue Date |
| 5050692 | Method for directional drilling of subterranean wells A method for directional drilling of a well with a motor and drill bit. A tubular housing is secured to the lower end of the motor with the housing having a first surface with an axis angularly disposed relative to the axis of the tubular housing. A secon... | 09/24/1991 |
| 4979567 | Method and apparatus for selective retraction of a tubing carried perforating gun An apparatus and method are provided for telescopically retracting a subterranean well tubing carried perforating gun. The retracting apparatus comprises a cylindrical housing which is carryable into the well on a tubular conduit, such as a work string, p... | 12/25/1990 |
| 4962812 | Valving system for inflatable packers Existing inflatable packers employ a three valve system for controlling the application of tubing pressure to the interior of an inflatable packing element surrounding the tubing. The three valves of such system are disposed in chordal relationship in the... | 10/16/1990 |
| 4951747 | Inflatable tool An inflatable well tool and method of use is provided. The tool has a central body and an annular inflatable packing element. A fluid passageway transmits pressured fluid for inflation purposes. One end of the packing element is secured relative to the tu... | 08/28/1990 |
| 4944347 | Method and apparatus for direct high velocity preparation of completion/workover systems An apparatus is provided for direct high velocity, consistent, uniform preparation of completion/workover systems for use in subterranean wells. The system has a screw type conveyor extending through a mixing housing which is in direct communication with ... | 07/31/1990 |
| 4944351 | Downhole safety valve for subterranean well and method A method and apparatus for replacing a defective downhole well safety valve of the full bore type by a wireline valve sealably insertable in the bore of the housing for the defective valve by wireline and operating the wireline inserted safety valve by fl... | 07/31/1990 |
| 4941534 | Method and apparatus for sealing a casing in a subterranean well bore An inflatable packer is mounted on the bottom end of a well casing by valve housing defining an annular chamber which is in communication at its lower end with the inflatable packer. A radial port is provided in the inner wall of the annular chamber for c... | 07/17/1990 |
| 4936387 | Method and apparatus for completion of a horizontal well A hydraulic packer with seals and slips is actuated by first and second cylinders which move in a first direction to actuate the seals or the slips into setting position with primary and secondary pistons carried within the cylindrical members and tandeml... | 06/26/1990 |
| 4934459 | Subterranean well anchoring apparatus The present invention provides an apparatus for anchoring of equipment within the interior bore of a section of a subterranean well conduit, and particularly for insertion of such equipment. The apparatus comprises a cylindrical housing and a conically ta... | 06/19/1990 |
| 4934460 | Pressure compensating apparatus and method for chemical treatment of subterranean well bores An apparatus for effecting chemical treatment of a subterranean well bore comprises vertically spaced, inflatable packing elements which are run into the well on a fluid conduit, such as continuous coiled tubing, or the like. The apparatus permits circula... | 06/19/1990 |
| 4928768 | Sump packer latching mechanism A locking mechanism for anchoring a tubing string to a hollow bore sump packer located at a position in a subterranean well. The locking mechanism is attachable to the end of a tubing string and incorporates radially shiftable locking members which are en... | 05/29/1990 |
| 4928772 | Method and apparatus for shifting a ported member using continuous tubing A method and apparatus are provided for introduction into a subterranean well on a continuous length of remedial tubing which is concentrically insertable through production tubing previously positioned within the well, the production tubing carrying at l... | 05/29/1990 |
| 4925575 | System for separating phases of a liquid stream A system for separating phases of a liquid stream, comprising a plurality of members each member having an inlet and an outlet such that the outlet of one member is connected to the inlet of another with members being horizontally or vertically stacked in... | 05/15/1990 |
| 4923012 | Safety valve for horizontal completions of subterranean wells An apparatus and method are provided relating to a safety valve for horizontal completions of subterranean wells. The apparatus is secured onto one end of a continuous length of remedial tubing which is introduceable into the well and concentrically inser... | 05/08/1990 |
| 4920877 | Wringer device An improved wringer device is provided for squeezing water from a cloth or chamois when fed between a pair of adjacent rollers. Each roller is made from thermoformed plastic, or molded elastomeric material with an outer surface defining a plurality of axi... | 05/01/1990 |
| 4921045 | Slip retention mechanism for subterranean well packer A slip retention mechanism for a packer or hanger for a subterranean well comprises a slip retention sleeve disposed in surrounding relationship to a tubular body on which cone elements are mounted for axial movement. Segment-shaped slips are mounted in t... | 05/01/1990 |
| 4917191 | Method and apparatus for selectively shifting a tool member A method and apparatus are provided for selectively shifting a tool member in a subterranean well, such as a sliding sleeve of a ported element, which may be carried on a continuous length of remedial tubing, or other conduit into the well and insertable ... | 04/17/1990 |
| 4917187 | Method and apparatus for hydraulically firing a perforating gun below a set packer An improved packer is provided for sealingly engaging a well casing above a pressure responsive device within a petroleum recovery well. A sleeve-like packer body interior of the packer sealing elements is provided for structurally interconnecting lower a... | 04/17/1990 |
| 4917183 | Gravel pack screen having retention mesh support and fluid permeable particulate solids An apparatus is provided for use on a subterranean well conduit. The apparatus comprises a cylindrically shaped inner tubular member having an interior and exterior walls. A fluid flow passageway is provided within the interior wall and a fluid flow passa... | 04/17/1990 |
| 4915172 | Method for completing a non-vertical portion of a subterranean well bore A method and apparatus for effecting the completion of non-vertical, including horizontally disposed, portions of a deviated well bore traversing a production formation. To facilitate the insertion of a gravel packing tool string through the curved portio... | 04/10/1990 |
| 4914514 | Method and apparatus for gauging well screens A method and apparatus for gauging the separation of successive turns of a wire helically wound on a fluid pervious, cylindrical body to form a wire screen for a subterranean well comprising the scanning of two adjacent wire turns after they are formed on... | 04/03/1990 |
| 4913041 | Deep fat frying apparatus A gas fired deep fat fryer has an upper heating section with a bottom wall from which a spaced pair of well sections depend. To efficiently melt solid shortening material initially disposed in the upper frypot section, the frypot is provided with an elect... | 04/03/1990 |
| 4911237 | Running tool for liner hanger A tool for running in a liner hanger and a depending lining string comprises a tubular body having telescopically related inner and outer tubular units which are shearably interconnected for co-rotation. A plurality of downwardly projecting tongues are pr... | 03/27/1990 |
| 4909325 | Horizontal well turbulizer and method The invention provides a method and apparatus for securement onto one end of a continuous length of remedial tubing which is introduced into a subterranean well concentrically through production tubing previously positioned within the well, with the well ... | 03/20/1990 |
| 4901794 | Subterranean well anchoring apparatus The present invention provides an apparatus for anchoring of equipment within the interior bore of a section of a subterranean well conduit, and particularly for insertion of such equipment. The apparatus comprises a cylindrical housing and a conically ta... | 02/20/1990 |
| 4899869 | Conveyor for food articles A multi-flight conveyor for transporting food articles is formed in its entirety from metals and plastic materials that are approved for use in food processing. Each conveyor flight frame comprises a ladder like structure wherein two stainless steel side ... | 02/13/1990 |
| 4899649 | Deep fat frying apparatus having an improved cooking fluid filtration system A multi-frypot, deep fat frying assembly is formed by operatively interconnecting a filtered, multiple frypot cooking module with one or more nonfiltered, multiple frypot cooking modules, each module having headered cooking fluid supply and drain piping s... | 02/13/1990 |
| 4898247 | Earth scraper attachment for a tractor or the like An earth scraper attachment adapted to be drawn by a farm tractor or other vehicle having a vertically adjustable three point hitch has an elongated frame with a front tongue portion connectable to the hitch with a specially designed hitch connection memb... | 02/06/1990 |
| 4894207 | Recirculating high velocity hot air sterilizing device A recirculating high velocity hot air sterilization device includes a housing having a chamber therein. A corrugated, perforated jet curtain plate is disposed within the chamber and partially defines an air supply plenum positioned outwardly of the chambe... | 01/16/1990 |
| 4890548 | Deep fat frying apparatus having an improved cooking fluid filtration system A deep fat fryer structure includes a floor mounted housing having an upper internal portion in which a side-by-side pair of large capacity metal frypots are operatively supported, each of the frypots having an upper, heated cooking portion from which an ... | 01/02/1990 |
| 4889049 | Wringer device An improved wringer device is provided for squeezing water from a cloth or chamois when fed between a pair of adjacent rollers. Each roller is made from thermoformed plastic, or molded elastomeric material with an outer surface defining a plurality of axi... | 12/26/1989 |
| 4889056 | Cover and latching mechanism for rail car loading hatch A generally circular cover for closing a hatch opening in a railroad car hopper is connected to a diametral support bar for limited pivotal movement to provide uniform gasket loading between the cover member and the hatch coaming. One end of the support b... | 12/26/1989 |
| 4887931 | Method and apparatus for towing subsea pipeline sections A method and apparatus are provided for towing of a fluid containing tubular conduit above a sea bed floor and within a body of water, such as an ocean or river. First and second inflatable sealing elements are placed within the interior of the conduit wi... | 12/19/1989 |
| 4887379 | Bass boat pedestal seat-mounted tackle box A fishing tackle box is secured to the underside of a bass boat pedestal seat by mounting structure that permits the box to be pivoted relative to the seat between a latched stowage position in which the box is positioned entirely beneath and closely adja... | 12/19/1989 |
| 4887959 | Gas furnace with improved ignition A furnace employing a plurality of spaced burners, a carryover tube passing adjacent the burners, a hot surface igniter at one end of the carryover tube, a flame sensor at the other end of the carryover tube and an ignition control for controlling actuati... | 12/19/1989 |
| 4886193 | Container closure cap with metering appliance A device for metering a fluid product comprises a closure cap threaded onto the nack of a container and acting on the stem of a valve member to lift the latter of a seat formed at the lower end of a cylindrical wall fixedly inserted into the neck of the c... | 12/12/1989 |
| 4886508 | Ladies external catheter assembly A soft flexible memory retaining ladies catheter assembly having an elongated thin-walled shell enclosing a cavity and a centralized entrance opening in a cover panel, a full flow recessed outlet, an open mesh full flow resilient insert mounted spaced apa... | 12/12/1989 |
| 4887189 | Aircraft instrument illuminating apparatus A panel mounted aircraft cockpit instrument is provided with a specially designed illuminating section which is used to light the instrument without causing interference with the operation of night vision equipment in the cockpit. An infrared light-filter... | 12/12/1989 |
| 4886126 | Method and apparatus for firing a perforating gun An electrically operated firing piston is provided for effecting the firing of a perforating gun in a subterranean well. The electrical firing system is disposed within a hollow housing which is detachably secured to the gun and is subject to the fluid pr... | 12/12/1989 |
| 4886277 | Golf ball A golf ball is provided with evenly and uniformly distributed dimples so that at least four great circle paths on the surface of the golf ball do not intersect any dimples. The spherical surface of the golf ball is divided into fourteen geometric shapes, ... | 12/12/1989 |
