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| Number | Title | Issue Date |
| 5431221 | Jar enhancer There is disclosed a tool for enhancing the impact of a jar delivered to an object stuck in a well bore during both upward and downward jars to the stuck object. The tool includes a first tubular member having an lower end connectible to the tubular membe... | 07/11/1995 |
| 5420747 | Capacitor with a double electric layer cell stack This invention relates to a capacitor with cells of a double electric layer comprising of a case of dielectric material for accommodating a stack of capacitor cells having a double electric layer with electrolyte therein and having been compressed togethe... | 05/30/1995 |
| 5411096 | Surface controlled, subsurface tubing safety valve There is disclosed a surface controlled, subsurface tubing safety valve having a tubular body with a bore therethrough disposable in a tubing string, and a flapper which is movable within-the body between open and closed positions and yieldably urged towa... | 05/02/1995 |
| 5407172 | Position instrumented blowout preventer A ram of a ram-type blowout preventer is enclosed within an enclosure so that the piston driving the ram is placed parallel to a stationary magnetizable waveguide tube. A transverse ring-like magnet assembly surrounds the tube and is attached to a carrier... | 04/18/1995 |
| 5407082 | Automatic ejector rate normalizer using multiple trip levels established in a master channel In a bichromatic sorting machine, a polygon pattern of trip level boundaries is established for a master channel programmable memory that is representative of orthogonally plotting detected products in each of two reflectivity spectral bands. The rate of ... | 04/18/1995 |
| 5405467 | Rubber riveting of molded parts A combination of a rubber or other elastomer part and a plastic or metal part is bonded by both chemical and mechanical means. The mechanical means is in the form of molded rivets integrally manufactured in the molding process as part of the elastomer. Ap... | 04/11/1995 |
| 5403475 | Liquid decontamination method In a multi-pass system for purifying oil or other liquids, an improved apparatus and method for mixing air with the contaminated liquid for separation after a phase change from liquid to gas. The contaminated liquid is drawn from a reservoir by a pump, fi... | 04/04/1995 |
| 5403151 | Low pressure process for entraining gas into liquid solution and pump therefore The invention is a method for entraining gas in a liquid solution and an apparatus for practicing the method. In the method of the invention, gas is introduced into a liquid solution being pumped through a conduit at the point of lowest absolute pressure ... | 04/04/1995 |
| 5402866 | Brake assembly with new locking mechanism Disclosed is an air-applied, mechanically-held brake assembly and a vehicle air brake system employing the same. The brake assembly applies and releases the brake upon the supply and exhaust, respectively, of air from a first pressure chamber. The brake a... | 04/04/1995 |
| 5395529 | Apparatus for the treatment of sewage A sewage treatment apparatus is disclosed comprising a tank (11) for receiving sewage effluent to be treated defining an inlet port (1) and an outlet port (8), compartmentalised so as to define a first sewage effluent settlement zone (3) below the level o... | 03/07/1995 |
| 5394597 | Method for making high velocity projectiles A lighter and faster bullet with a copper jacket and an aluminum core which is formed by first folding or rolling sheets of a thin metal such as aluminum foil into a cylinder and then inserting the cylinder into the jacket. The cylinder is then compressed... | 03/07/1995 |
| 5390683 | Spinal implantation methods utilizing a middle expandable implant Artificial disk implant and methods for implanting same, the implant having a member (32, 34, 36, 77, 92, 94) for adapting in size and shape to the anatomical space between vertebrae, and apparatus (25, 42, 60, 112) for expanding the implant in the middle... | 02/21/1995 |
| 5387104 | Instructional system for improving communication skills Method and system for reducing illiteracy of individuals accompanied by improvements in functionality utilizing computer technology to integrate multi-sensory stimuli for synthesis of individualized instruction, evaluation, and prescription for advancemen... | 02/07/1995 |
| 5379195 | Lighting fixture There is disclosed an improved battery backed-up explosion proof, safety lighting fixture for illuminating an area containing ignitable materials. The lighting fixture is portable and can be converted to an exit light.... | 01/03/1995 |
| 5378044 | Tape wrapping apparatus There is disclosed an apparatus for facilitating the wrapping of tape by a first individual about the ankle of a second individual, wherein the second individual is seated upon a first seating surface of an upright stand with the calf of the second indivi... | 01/03/1995 |
| 5365745 | Portable life support system The invention in its preferred embodiment is a portable life support system for use in warm water diving providing temperature regulation and breathable atmosphere through cryogenic technology while maintaining neutral buoyancy and trim throughout zero-gr... | 11/22/1994 |
| 5365447 | GPS and satelite navigation system A satellite-based navigation system providing improved accuracy and reliability over wide geographical areas, including remote regions, is disclosed. Ranging-type signals transmitted through two or more commercial geostationary telecommunication satellite... | 11/15/1994 |
| 5363928 | Method of drilling with fluid including bees wings and fluid loss additive therefor A by-product of corn is utilized in the drilling fluid while drilling boreholes to reduce friction and to reduce the normal adverse effects inherent in each drilling fluid.... | 11/15/1994 |
| 5363538 | Cord clasp A cord clasp is disclosed for holding together several loops or folds of an appliance cord in order to keep the cord tidy. The clasp includes two complementary facing jaw members, each having a cord surrounding portion and a handle portion separated by a ... | 11/15/1994 |
| 5363093 | Method and apparatus for continuous tank monitoring Method and apparatus for continuously monitoring the volume of liquid in an underground storage tank and producing data for reconciling volume with throughput. This invention provides a set of algorithms and hardware which allows the loss of product cause... | 11/08/1994 |
| 5361591 | Portable life support system The invention in its preferred embodiment is a portable life support system providing the wearer of a garment with temperature regulation and a breathable atmosphere using cryogenic technology. Wherein a liquid cryogen is vaporized by heat exchange with t... | 11/08/1994 |
| 5360240 | Method of connecting plastic pipe joints to form a liner for an existing pipeline and a plastic pipe joint for forming such liner A connection for and a method of connecting the ends of two joints of low modulus, low hardness, low strength plastic pipe. The connection includes a threaded box on one joint and a threaded pin on the other joint. The box has tapered, internal, generally... | 11/01/1994 |
| 5358935 | Nonantigenic keratinous protein material The present invention is a new nonantigenic keratinous protein material that may be used as a number of purposes, including correction of soft tissue deficiencies and the creation of biomedical implants and implant coatings. The present invention also inc... | 10/25/1994 |
| 5358285 | Stress relief groove for drill pipe A joint of drill pipe is disclosed that has a tube section with upset ends to increase the wall thickness of the tube at its ends and tool joints connected to each end of the tube. Each tool joint has a cylindrical section connected to a weld neck of diam... | 10/25/1994 |
| 5358053 | Subsurface safety valve There is disclosed a subsurface tubing safety valve having a normally closed flapper which is adapted to be moved to open position by a flow tube reciprocable within the body of the valve. The flow tube is urged to flapper opening position by hydraulic fl... | 10/25/1994 |
| 5355650 | Batten mounting system In a demountable office partition system, batten mounts with a base and legs of a resilient hard plastic are snap fit to supporting structures by reason of inwardly directed opposed flanges on the legs. The legs of the batten mounts also have soft plastic... | 10/18/1994 |
| 5353937 | Automatic variable ejector delay time and dwell type mechanism in a sorting apparatus A method and apparatus are disclosed for detecting and ejecting articles of different weights in a product and article stream, by varying the dwell and delay time in accordance with the color classification of the products and articles being sorted. The e... | 10/11/1994 |
| 5353151 | Collapsible binocular A collapsible binocular comprising a substantially rectangular open-sided housing and an elongated side wall member is provided. Objective lens means and eyepiece lens means maintain the construction of the binocular and provide protection for the lenses.... | 10/04/1994 |
| 5352888 | Method and apparatus for detecting and utilizing frame fill information in a sorting machine having a background and a color sorting band of light Apparatus and method for measuring the reflectivity of a product for use in optical sorting machines that is insensitive to product size and orientation. The percentage reflectivity of a product passing a background is corrected by a frame fill factor, wh... | 10/04/1994 |
| 5347850 | Method for detecting and localizing leaks in above ground storage tanks A method and apparatus for detecting and localizing a leak from an above-ground liquid storage tank is disclosed. The invention utilizes a fiber optic chemical sensor to sense vapor from the liquid stored in the tank through a plurality of horizontal bore... | 09/20/1994 |
| 5347849 | Water sensor that detects tank or vessel leakage The apparatus of the invention is a water level probe comprised of a probe body, a sleeve having openings permitting fluid flow and encasing part of a magnetostrictive sensor, and an external housing encasing electronic circuitry for processing and transm... | 09/20/1994 |
| 5343946 | High pressure packer for a drop-in check valve A packer assembly for a drop-in check valve includes a series of stacked rings in the annulus between the housing of the drop-in check valve assembly and the surface of the bore of the landing sub. The rings include at least two elastomer rings of differe... | 09/06/1994 |
| 5342020 | Speed controller for drilling rig traveling block A controller for a drilling rig traveling block is disclosed utilizing an absolute position locator and a processor for employing various operating fixed and variable parameters for controlling the speed of travel of the traveling block. As approach limit... | 08/30/1994 |
| 5340238 | Method and apparatus for testing above ground liquid storage tanks for leaks A method and apparatus for detecting and localizing a leak from an above-ground liquid storage tank is disclosed. The invention utilizes a fiber optic chemical sensor to sense vapor from the liquid stored in the tank through a plurality of horizontal bore... | 08/23/1994 |
| 5339864 | Safety sub for retaining drilling fluids A safety sub is disclosed for retaining drilling fluid in the kelly or equivalent and other components of the mud system located above the drill string when pressure drops in the drill string, such as when the circulation pump is turned off in adding a ne... | 08/23/1994 |
| 5336562 | Polyolefin yarns with good performance for rugs and carpets and method of producing the same The invention relates to a novel type of polyolefine yarns with good performance in the manufacture of rugs and carpets, made-up by admixing polypropylene filaments with polyethylene filaments, and by subjecting said filaments mixture to a temperature of ... | 08/09/1994 |
| 5333911 | Connector There are disclosed several embodiments of a connector for connecting tubular members in end-to-end relation wherein a ring supported by the one tubular member carries arcuate latches which are adapted to be moved by radial actuators into and out of posit... | 08/02/1994 |
| 5332475 | Cross-linking collagenous product The present invention relates to a process for cross-linking a proteinaceous material. The process comprises: i) soaking the material to be cross-linked in an agueous solution of high osmolality; ii) incubating the material in an agueous buffer including ... | 07/26/1994 |
| 5332002 | Gate valve There is disclosed two embodiments of a gate valve having a pair of parallel-sided gates for opening and closing a flowway through the valve body upon reciprocation within a gate cavity intersecting the flowway intermediate its ends. The gates are connect... | 07/26/1994 |
| 5329966 | Gas flow controller There is disclosed a system for delivering gas at a predetermined rate of flow, including a diaphgram type flow controller, a pressure regulator for providing a constant flow of gas to the flow controller, and a microprocessor controlled stepper motor uti... | 07/19/1994 |
