Cheshunt, United Kingdom
Cheshunt, United Kingdom

Tesco PLC is a British multinational grocery and general merchandise retailer headquartered in Cheshunt, Hertfordshire, England, United Kingdom. It is the third largest retailer in the world measured by profits and second-largest retailer in the world measured by revenues. It has stores in 12 countries across Asia and Europe and is the grocery market leader in the UK , the Republic of Ireland, Hungary, Malaysia, and Thailand.Tesco was founded in 1919 by Jack Cohen as a group of market stalls. The Tesco name first appeared in 1924, after Cohen purchased a shipment of tea from T. E. Stockwell and combined those initials with the first two letters of his surname, and the first Tesco store opened in 1929 in Burnt Oak, Barnet. His business expanded rapidly, and by 1939 he had over 100 Tesco stores across the country.Originally a UK-focused grocery retailer, since the early 1990s Tesco has increasingly diversified geographically and into areas such as the retailing of books, clothing, electronics, furniture, toys, petrol and software; financial services; telecoms and internet services. The 1990s saw Tesco reposition itself, from its perception as a downmarket "pile 'em high, sell 'em cheap" retailer, to one which appeals across a wide social group, from its Tesco Value to its Tesco Finest ranges. This was successful, and saw the chain grow from 500 stores in the mid-1990s to 2,500 stores fifteen years later.Tesco is listed on the London Stock Exchange and is a constituent of the FTSE 100 Index. It had a market capitalisation of approximately £20.5 billion as of 4 August 2014, the 28th-largest of any company with a primary listing on the London Stock Exchange. Wikipedia.

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Patent
Tesco | Date: 2016-09-22

A pipe joint location detection system includes a main body, at least one magnet, and a plurality of magnetic sensors. The main body has an annular shape defining a central passage, the at least one magnetic is coupled to the main body, the magnet is configured to output a magnetic field, and the plurality of magnetic sensors is coupled to the main body and disposed about a circumference of the main body, wherein each magnetic sensor of the plurality of magnetic sensors is configured to detect a magnetization of a tubular string disposed within the central passage. The pipe joint location detection system also includes a memory comprising data stored thereon, wherein the data includes a first magnetization value associated with a first contour of the tubular string and a second magnetization value associated with a second contour of the tubular string, wherein the first contour is different from the second contour.


An electric meter contact arc detector is mountable to an electric meter base and may comprise: a de-tuned resonant tank circuit configured to receive a magnetic field and/or an electric field from an electrical arc at a stab contact; an electrical detector detecting signals generated in the de-tuned resonant tank circuit responsive to the electrical arc at the stab contact; and an output device indicating detection of an electrical arc. A disconnect device responsive to the electrical detector and configured to interrupt an electrical connection to the stab contact, may be provided. An electrical arc at the stab contact may thus be detected and may cause an electrical connection to the stab contact to be interrupted.


An electric meter contact arc detector is mountable to an electric meter base and may comprise: a de-tuned resonant tank circuit configured to receive a magnetic field and/or an electric field from an electrical arc at a stab contact; an electrical detector detecting signals generated in the de-tuned resonant tank circuit responsive to the electrical arc at the stab contact; and an output device indicating detection of an electrical arc. A disconnect device responsive to the electrical detector and configured to interrupt an electrical connection to the stab contact, may be provided. An electrical arc at the stab contact may thus be detected and may cause an electrical connection to the stab contact to be interrupted.


Patent
Tesco | Date: 2015-08-05

Present embodiments are directed to a mud saver valve assembly having a first sleeve, a second sleeve, and a first valve element axially captured between the first sleeve and the second sleeve, wherein the first valve element includes a support ring portion extending about a circumference of the first valve element and a center portion extending across the support ring portion, wherein the center portion comprises a dome-shaped geometry.


Patent
Tesco | Date: 2016-11-02

In accordance with one aspect of the disclosure a method includes positioning a cement plug in a casing string, completing a casing cementing process, launching the cement plug down the casing string, and detecting a magnetic field of an electro-magnetic transmitter coupled to the cement plug or a magnet disposed on an outer surface of the casing string with a magnetic sensor disposed on the outer surface of the casing string.


Patent
Tesco | Date: 2015-12-09

Present embodiments include a first oilfield tubular, wherein the first oilfield tubular comprises a threaded box connection at a first axial end of the first oilfield tubular, a second oilfield tubular, wherein the second oilfield tubular comprises a threaded pin connection at a second axial end of the second oilfield tubular, a first flange coupled to the first axial end of the first oilfield tubular, wherein the first flange comprises a plurality of apertures arrayed about a first circumference of the first flange, and a second flange coupled to the second axial end of the second oilfield tubular, wherein the second flange comprises a plurality of recesses arrayed about a second circumference of the second flange, wherein each of the plurality of apertures is configured to align with a respective one of the plurality of recesses.


A housing for a variable frequency drive and its transformer, which housing has two compartments, one each for a VFD and transformer. The housing is box shaped with enclosures attached to the rear wall of each compartment, which enclosures communicate through openings in the compartments to their interiors. The VFD compartment has an exterior side wall communicating enclosure. Cooling components are disposed in each enclosure. Each compartment has inner and outer doors. The inner door of the VFD compartment has a recessed cabinet with VFD controls therein and on its door. The inner door of the transformer compartment has a grill, while its outer door has both interior and exterior louvers. The transformer compartment also holds the main circuit breaker.


Patent
Tesco | Date: 2016-06-06

Present embodiments are directed to a gripping device configured to couple with a pipe element. A housing of the gripping device is configured to extend over and at least partially around a distal end of the pipe element. Torsional clamp devices are configured to engage an outer circumferential surface of the pipe element with frictional engagement features that extend radially inward from the housing. A sealing mechanism is configured to shift a pipe seal relative to the housing and into engagement with the distal end of the pipe element and to facilitate fluid flow through the gripping device into the pipe element.


Patent
Tesco | Date: 2016-02-29

Control lines are secured to a completion string by a wrap wound around the completion string and control lines. The control lines are positioned adjacent to the completion string as it is lowered towards a well, and the wrap is wound helically around the lines and string in an open or closed loop manner. The placement and pitch of the wrap may be regulated, such as based upon the rate of advancement of the string into the well. One or multiple wraps may be used, and successive turns of the one or more wraps may overlap or be spaced from one another.


Patent
Tesco | Date: 2016-06-01

Embodiments of the present disclosure include a drill pipe guide system having a support structure configured to be positioned on a rig floor or drillship floor, an articulating arm coupled to the support structure, wherein the articulating arm is configured to pivot relative to the support structure, and a clamp coupled to the articulating arm, wherein the clamp is configured to encircle a drill string and limit radial movement of the drill string as the drill string is lowered beneath the rig floor or drillship floor.

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