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Murphy, TX
Christopher John Murphy, Houston, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20110203795 | SEALANT FOR FORMING DURABLE PLUGS IN WELLS AND METHODS FOR COMPLETING OR ABANDONING WELLS - Embodiments of the present invention generally relate to a sealant for forming durable plugs in wells and method for completing or abandoning wells. In one embodiment, a method of plugging a wellbore includes mixing sealant; mixing cement; pumping the cement and sealant into the wellbore. The cement is above the sealant and the sealant cures to become viscoelastic or semisolid. | 08-25-2011 |
David Murphy, Austin, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090067837 | MEANS AND APPARATUS FOR A SCALEABLE CONGESTION FREE SWITCHING SYSTEM WITH INTELLIGENT CONTROL III - A switching system for routing information packets that can simultaneously receive a variety of packet formats. The packet formats include electronic packet transmissions, optical wave division multiplexed data (WDM) with a single frame consisting of a plurality of packets to be sent to a common output line, with each packet traveling on a separate wavelength, WDM packets where the header of an individual packet travels on a wavelength different from the remainder of the packet (i.e. the payload) and the payload either travels on a single wavelength or is subdivided into a plurality of sub-packets with each sub-packet carried on a separate wavelength, and the like. The system includes input devices, a scheduling unit, a switching unit; and variable delay line units. A deconcentrator in the packet switching system creates a minimum gap between packets. | 03-12-2009 |
Douglas J. Murphy, Marshall, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20110240806 | MODULAR TANK STAND - A modular tank stand is lightweight and easily transportable, but also capable of supporting the weight of a large bulk storage container filled with flowable material. The modular tank stand includes a plurality of individual tank stand sections which are interconnectable with one another to form a larger support surface sized to receive the bulk storage container. The individual sections include integral, vertically disposed support walls that provide both vertical support for the weight of the bulk storage container and resistance to collapse under shear forces arising from movement of the container. The interconnecting individual sections may be disconnected from one another and reconfigured to fit in a smaller space, such as onto a pallet or within a shipping container, thereby facilitating storage of the disassembled modular tank stand. | 10-06-2011 |
| 20110247956 | METAL INSERT FITTING FOR MATERIAL STORAGE TANKS - A bulk storage container includes a tank with a “full drain” outlet, and a coupler attached to the outlet, in which the full drain outlet and coupler utilize a metal-on-metal threaded connection to create a fluid-tight seal therebetween. The polymer coupler includes a metal insert with internal threads, and the tank includes a metal insert with external threads corresponding to the internal threads of the coupler insert. The metal inserts are integrally molded within the walls of the tank and coupler, respectively. Advantageously, the threaded metal inserts provide a rigid structural connection between the tank and coupler that is highly durable and leak resistant. In addition to the threaded fluid-tight seal, a shoulder of the coupler abuts a corresponding face formed on the tank, with a gasket between the shoulder and face to provide a secondary seal. | 10-13-2011 |
Eugene Murphy, Houston, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20100132955 | METHOD AND SYSTEM FOR DEPLOYING SENSORS IN A WELL BORE USING A LATCH AND MATING ELEMENT - A method for deploying a sensor array into a wellbore, including inserting the sensor array into a secondary tubular coupled to a body at a surface of the wellbore, coupling the sensory array to the body, running the secondary tubular into a primary tubular fixed to the wellbore, engaging a latch mechanism located on the body with a mating element fixed to the primary tubular of the wellbore, and decoupling the secondary tubular from the body and retrieving the secondary tubular from the wellbore while the sensor array is held fixed by the latch. | 06-03-2010 |
Eugene Andrew Murphy, Houston, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20110024103 | METHOD AND APPARATUS FOR PROVIDING A CONDUCTOR IN A TUBULAR - Embodiments of the present invention generally relate to a method and apparatus for providing a conductor in a tubular. In one embodiment, a coiled tubing string for use in a wellbore includes: a tubular; a conductor extending at least essentially a length of the tubular; and a tubular coating extending at least essentially the length of the tubular and bonding the conductor to an inner surface of the tubular. | 02-03-2011 |
George L. Murphy, Austin, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20120241590 | Method for Assembly of Spectroscopic Filter Arrays Using Biomolecules - Spectroscopic filter arrays and methods for making spectroscopic filter arrays are provided. The arrays are formed using a dispersion of filter particles having selected moieties attached to the surface of the particles and a microarray having complementary moieties formed in an array on a substrate, such that each filter particle is attached to a selected region of the microarray. The moiety on the substrate may be RNA or DNA or other molecule. The substrate may be a surface of a photodetector array, a transparent plate that may be placed in registration with the photodetector or a stamp used to transfer the filter array to a photodetector array. | 09-27-2012 |
| 20120245055 | Method for Assembly of Analyte Filter Arrays Using Biomolecules - Analyte filter arrays and methods for making an analyte filter array are provided. The arrays are formed using a dispersion of filter particles having selected moieties attached to the surface of the particles and a microarray having complementary moieties formed in an array on a substrate, such that each filter particle is attached to a selected region of the microarray. The moiety on the substrate may be RNA or DNA or other molecule. The substrate may be a surface of a detector array, a membrane that may be placed in registration with the detector array or a stamp used to transfer the filter array to a detector array. | 09-27-2012 |
Gerald Murphy, Houston, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20130030784 | RENEWABLE ENERGY CONFIGURATOR - Embodiments for determining an optimal configuration for a renewable energy power plant are provided. The power plant, which may be a virtual power plant, includes one or more generator devices and one or more energy storage devices that may be operated to undertake one or more operating applications. Data indicative of the power output of the power plant and the voltage level at the energy storage system connection point is received as an input. Using this data, combinations of energy storage devices and operating applications stored on a database are processed and, for each energy storage and operating application pair, a value indicative of the profitability of undertaking the operating application is determined. These values are used to rank the combinations of energy storage devices and operating applications according to their profitability, which in turn is used to select the most efficient or profitable application/energy storage pair. | 01-31-2013 |
Gwendolyn Murphy, Texarkana, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20110162401 | METHOD AND DEVICE FOR COOLING THE BODY IN EXTREME HEAT ENVIRONMENTS - An apparatus and system fit on or around an individual's person. The apparatus contains a series of pockets containing a cooling agent. The cooling agent is activated through water of some other agent along with the individual's own body heat. As the cooling agent is activated, cooling treatment is released from the cooling agent and is absorbed by the body and thereby cools the body. | 07-07-2011 |
Janet Murphy, Sugar Land, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20120290211 | SYSTEM AND METHOD FOR DETERMINING PROPERTIES OF A HYDROCARBON RESERVOIR BASED ON PRODUCTION DATA - A system and computer-implemented method for determining properties of a hydrocarbon reservoir from production data is disclosed. The method includes obtaining production data for a plurality of wells in the hydrocarbon reservoir, arranging the production data for each of the wells such that the production data is indexed in three dimensions, displaying the arranged production data in a three dimensional graphical space to create displayed 3D production data, determining properties of the hydrocarbon reservoir based on the displayed 3D production data, and managing the hydrocarbon reservoir based on the properties of the hydrocarbon reservoir. | 11-15-2012 |
Jeremy Murphy, Sugar Land, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20120097385 | Formation Fluid Sample Container Apparatus - Formation fluid sample container apparatus are described. An example apparatus includes a downhole tool having a body including an opening and a cavity extending into the body from the opening. The sample container includes an elongated container for holding a formation fluid sample and a sheath coupled to an outer surface of the elongated container and at least partially surrounding the elongated container. The sample container is fixed in the cavity and the sheath is to increase the mechanical integrity of the elongated container in a downhole environment. | 04-26-2012 |
John Murphy, Coppell, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090112461 | MAPPING SYSTEM AND METHOD - A mapping method is presented comprising receiving travel-related information from a user. A user interface is presented displaying at least a portion of a transportation hub. The user interface indicates a path and an estimated travel time from a current location within the transportation hub to a target location within the transportation hub using the received travel-related information. | 04-30-2009 |
John A. Murphy, San Antonio, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090204726 | METHOD AND SYSTEM FOR PROVIDING WATERMARK TO SUBSCRIBERS - A method for providing watermark to subscribers is provided. The method comprises observing a request for a first content from a subscriber, determining if the subscriber can receive a watermark, generating a second content comprising the watermark if the subscriber can receive a watermark, causing the subscriber to fetch the first content, and causing the subscriber to fetch the second content comprising the watermark overlaying the first content. | 08-13-2009 |
| 20100161730 | SYSTEM AND METHOD FOR PROVIDING REDIRECTIONS - A redirection of a URL page request may be performed by monitoring an upstream path from a subscriber to the internet through an ISP. When a URL page request is detected from a subscriber for whom a redirection is required, a redirection device generates a single TCP packet response that mimics a response from the intended destination server. The single TCP packet includes a set FIN bit that closes any active session with the destination server to prevent the subscriber from accepting packets from the destination server. | 06-24-2010 |
| 20100162296 | SYSTEM AND METHOD FOR SET-TOP-BOX MESSAGING DISPLAY - In a set-top-box system, messages from a service provider are stored and delayed until activity from a set-top-box remote is detected. Messages are then generated and provided to a television associated with the set-top-box. Delaying of the message display until set-top-box activity is detected allows short display times, thus preventing burn-in on some television screens, while providing a greater likelihood that messages will be viewed. | 06-24-2010 |
| 20120136994 | INTERNET PROVIDER SUBSCRIBER COMMUNICATIONS SYSTEM - A system, method, and computer readable medium for communicating at least one real-time specially-composed bulletin message to at least one subscriber of a provider of Internet services, comprising a first device, and a second device communicably coupled to the first device, wherein the first device: accesses only subscriber upstream traffic to a destination web site requested by the subscriber, wherein the first device inter-connects between the at least one subscriber and the destination web site, identifies the at least one subscriber's identification based on the accessed subscriber upstream traffic automatically provided by the subscriber, and provides the unique subscriber identification to the second device located at the provider of Internet services providing data services and management control to the first device, wherein the second device determines the subscriber associated with the unique subscriber identification. | 05-31-2012 |
| 20120173716 | INTERNET CONNECTION USER COMMUNICATIONS SYSTEM - A method for communicating in real-time to users of a provider of Internet access service, without requiring any installation or set-up by the user, that utilizes the unique identification information automatically provided by the user during communications for identifying the user to provide a fixed identifier which is then communicated to a redirecting device. Messages may then be selectively transmitted to the user. The system is normally transparent to the user, with no modification of its content along the path. Content then may be modified or replaced along the path to the user. For the purposes of establishing a reliable delivery of bulletin messages from providers to their users, the system forces the delivery of specially-composed World Wide Web browser pages to the user, although it is not limited to that type of data. These may be displayed permanently, temporarily, or in separate pop-up browser windows, according to policies set by the provider irrespective of the user's intended browsing destination. | 07-05-2012 |
| 20120198526 | SYSTEM, METHOD AND COMPUTER READABLE MEDIUM FOR MESSAGE AUTHENTICATION TO SUBSCRIBERS OF AN INTERNET SERVICE PROVIDER - An internet service provider (ISP) is configured to provide notification messages such as service updates to subscribers via redirected web pages. In order for the web pages to be treated as originating from the ISP, the ISP provides a shared secret in the browser message. The shared secret may be a secret not derivable by viruses or trojans in the subscriber computer, such as a MAC address of the subscriber modem. | 08-02-2012 |
| 20130046880 | SYSTEM AND METHOD FOR PROVIDING REDIRECTIONS - A redirection of a URL page request may be performed by monitoring an upstream path from a subscriber to the internet through an ISP. When a URL page request is detected from a subscriber for whom a redirection is required, a redirection device generates a single TCP packet response that mimics a response from the intended destination server. The single TCP packet includes a set FIN bit that closes any active session with the destination server to prevent the subscriber from accepting packets from the destination server. | 02-21-2013 |
John Anthony Murphy, San Antonio, TX US
Keith E. Murphy, College Station, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20080227102 | Methods for Identification of Merle Gene - Animals with mutations in SILV present with the merle coat color pattern phenotype. Methods for the identification of animals that harbor a mutation in the SILV gene are described. Mutations in the SILV gene can be identified from any biological sample such as a cell or tissue that contains genomic DNA. A microsatellite marker identified using linkage disequilibrium mapping that segregates with merle is also described. | 09-18-2008 |
Kenneth Murphy, Houston, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090171774 | METHODS AND SYSTEMS FOR DISPLAYING MATTRESSES BY COLOR - A method for displaying a plurality of mattresses according to a color scheme is provided. The method includes categorizing a plurality of mattresses into at least three different types based on features of the mattresses other than size (e.g., based on comfort or style), designating a different color for each type of mattress, and displaying each of the mattresses with the designated color, or an article having the designated color, for the particular mattress type. For example, the article may include a pillow and/or foot protector having the designated color displayed prominently for a customer's reference. The method may further include grouping at least a portion of the mattresses together within the showroom based on the type of mattress, and displaying one of each type of mattress in a common region (e.g., a comparison center) for side-by-side comparisons of the different types of mattresses by customers. | 07-02-2009 |
| 20090171864 | Methods and Systems for Displaying Mattresses by Color - A method for displaying a plurality of mattresses according to a color scheme is provided. The method includes categorizing a plurality of mattresses into at least three different types based on features of the mattresses other than size (e.g., based on comfort or style), designating a different color for each type of mattress, and displaying each of the mattresses with the designated color, or an article having the designated color, for the particular mattress type. For example, the article may include a pillow and/or foot protector having the designated color displayed prominently for a customer's reference. The method may further include grouping at least a portion of the mattresses together within the showroom based on the type of mattress, and displaying one of each type of mattress in a common region (e.g., a comparison center) for side-by-side comparisons of the different types of mattresses by customers. | 07-02-2009 |
Kenneth Wayne Murphy, Dallas, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20110264524 | Method and System for Implementing and Using a Delivery Point Uniform Locator - The present invention is a system and method for implementing and using a delivery point identification number (ID) that provides a unique ID for each household in a region or country. The invention includes a process of loading a National Resident Database indexed with the unique delivery point ID that allows each household in a region or country to be quickly and accurately identified, and persons at the household can use the delivery point ID when accessing a website, webpage or other Internet access point to allow access webpages, direct promotional pop-up adds to the household, direct coupons or redeemable discount offers to the household, record purchase preferences in a household record, send traffic based on those preferences. This process is called Delivery Point Uniform Resource Locator, or DP-URL. | 10-27-2011 |
Michael Shawn Murphy, Allen, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20120025717 | INTELLIGENT LIGHTING CONTROL SYSTEM - Multiple control modules ( | 02-02-2012 |
Oliver J. Murphy, Bryan, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090010801 | AIR CLEANER - Apparatus and method for cleaning air. An air cleaner includes a housing that defines an airflow pathway and a catalytic reactor having a catalyst secured on a porous substrate that is disposed transverse to the airflow pathway. Preferably, the catalyst includes a light activated oxidizing photocatalyst or a thermally activated oxidizing catalyst. A photocatalytic reactor will include a light source directed at a light activated oxidizing photocatalyst, such as TiO | 01-08-2009 |
| 20090071838 | ELECTROCHEMICAL APPARATUS WITH RETRACTABLE ELECTRODE - Electrochemical apparatus and methods that support periodic, non-steady state, or discontinuous operation without suffering degradation of materials or loss of efficiency. The invention provides a means for positioning one or more electrodes into contact with electrolyte and means for retracting the one or more electrodes out of contact with the electrolyte. The means for positioning and means for retracting may be the same device or different devices. The means for positioning and means for retracting may be designed to provide automatic, passive, or fail-safe retraction of the electrode upon a given shutdown condition, such as a voltage of less than one Volt being applied between the first and second electrodes, expiration of a time period, an ozone concentration greater than a setpoint ozone concentration, contact pressure of less than 5 psig, and combinations thereof. | 03-19-2009 |
| 20090324452 | HYDROGEN GENERATOR - An apparatus and method apply water to a hydrogen-containing composition, such as a hydride, in the presence of a catalyst that promotes hydrolysis to generate hydrogen in a controlled manner. The amount of catalyst used can be carefully tailored so that the reaction rate is limited by the amount of catalyst present (passive control) or it can be sufficiently large so that the reaction is controlled by the rate of water addition (active control). | 12-31-2009 |
| 20100021778 | FUEL CELL EMERGENCY POWER SYSTEM - Fuel cell emergency power systems comprising a fuel cell having an anode and a cathode, a power distribution unit for selectively directing electrical current from the fuel cell to one or more consuming device, a hydrogen gas control system and an oxygen gas control system. The hydrogen gas control system includes a pressurized hydrogen tank providing hydrogen gas in selective fluid communication to the anode, a hydrogen gas-liquid water phase separator in downstream fluid communication with the anode, and a hydrogen recirculation pump for recirculating substantially liquid water-free hydrogen from the hydrogen gas-liquid water phase separator to the anode. Similarly, the oxygen gas control system includes a pressurized oxygen tank providing oxygen gas in selective fluid communication to the anode, an oxygen gas-liquid water phase separator in downstream fluid communication with the anode, and an oxygen recirculation pump for recirculating substantially liquid water-free oxygen from the oxygen gas-liquid water phase separator to the anode. | 01-28-2010 |
Rebecca Murphy, Bryan, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20100024065 | DISCOVERY AND UTILIZATION OF SORGHUM GENES (MA5/MA6) - Methods and composition for the production of non-flowering or late flowering | 01-28-2010 |
Richard D. Murphy, League City, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090299087 | Process for manufacturing unsaturated mononitriles to improve on-stream time and reduce fouling - The process for manufacturing unsaturated mononitriles, such as acrylonitrile and methacrylonitrile, has been modified to add a partially condensed quench effluent stripper column to remove high boiling organic compounds from the reactor effluent prior to introduction into the extractive distillation recovery column. The high boiling organic compounds are preferably removed after the ammonia in the reactor effluent has been neutralized and the neutralization products have been removed. The targeted high boiling organic compounds are associated with fouling in the recovery section of the plant. | 12-03-2009 |
Robert J. Murphy, Kingwood, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20110167901 | METHODS TO CHARACTERIZE SAG IN FLUIDS - Systems and methods for direct and indirect measurement of the density of a fluid which exhibits sag characteristics is disclosed. The sag measurement system includes a test container for holding a fluid mixture to be analyzed and a suction port on the test container. A pump is coupled to the suction port for circulating the fluid mixture from the test container through a circulation loop. A measurement device is coupled to the circulation loop and a return port directs the fluid mixture from the circulation loop back to the test container at substantially the same vertical location as the suction port. The fluid mixture flowing through the circulation loop passes through the measurement device before returning to the test container through the return port. The measurement device is operable to monitor the particle distribution of the fluid mixture as it changes due to gravity. | 07-14-2011 |
| 20120264659 | Methods to Modify Drilling Fluids to Improve Lost Circulation Control - Of the many compositions and methods provided here, one method includes providing a drilling fluid comprising a lost circulation material and a base drilling fluid, wherein the base drilling fluid comprises an oleaginous continuous phase and a polar organic molecule, wherein the base drilling fluid has a first normal stress difference magnitude (|N | 10-18-2012 |
| 20120300200 | OPTICAL MEASUREMENT DEVICE - Optical measurement devices including one or more sealing assemblies are described. The sealing assemblies are configured for use at relatively high temperatures and pressures, such as temperatures over 200 degrees F. and pressures over 10,000 psi. The sealing assemblies can include a deformable seal element surrounded on each side by a backup seal element. In some examples, the deformable seal element is formed of a material selected from a group consisting of a fluoroelastomer or polytetrafluoroethylene, and the backup seal elements are formed of a material selected from a group consisting of flexible graphite or metal foil. Optionally, at least one additional seal element functioning as an extrusion barrier can be placed on the opposite side of one or both backup seal elements from the deformable seal element. The additional seal element can be formed of polyether ether ketone or flexible graphite, for example. Additional devices and assemblies are described. | 11-29-2012 |
Solomon H. Murphy, Spring, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20080312420 | Monoclonal Antibodies for Detection of Urinary Trypsin Inhibitors - Certain monoclonal antibodies are able to detect urinary trypsin inhibitors (UTIs) that are characteristic of disease in humans. In particular, the UTIs include AMBK, Bikunin, Uristatin, Uristatin-1, Uristatin-2, as defined herein, also including the fragments and aggregates thereof. | 12-18-2008 |
Terence Joseph Murphy, Plano, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090114820 | Image Sensor Having A Variable Aperture And Mono-Color Focal Plane Array For Dual Color Detection - An image sensor is provided that includes a focal plane array; a cold shield having a top wall disposed over the focal plane array and defining an aperture operatively configured to be selectively switched between a first diameter and a second diameter that is larger than the first diameter; and a filter element disposed between the cold shield aperture and the focal plane array. The filter element includes a first band-pass filter and a second band-pass filter. The first band-pass filter is disposed directly beneath the cold shield aperture when the cold shield aperture is switched to the first diameter or the second diameter. The second band-pass filter is covered by the top wall of the cold shield when the cold shield aperture is switched to the first diameter and is disposed directly beneath the cold shield aperture when the cold shield aperture is switched to the second diameter. | 05-07-2009 |
Thomas Murphy, Arlington, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20120234250 | COLLAPSIBLE KENNEL FEEDER - A collapsible feeder is provided for use in combination with a cage or kennel. The feeder includes a collapsible container and a cage-mounted hinge. The collapsible container is made from a flexible material that collapses to a flat profile, and the collapsible container is connected to the cage-mounted hinge so that the collapsible container and adjacent apparatus may be folded up against the cage to maximize interior cage space when not in use. | 09-20-2012 |
Thomas B. Murphy, Arlington, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090183565 | Collapsible Measuring Cup with Pivoting Handle - A device for containing or measuring liquids includes a rigid annular portion maintaining the shape of the opening of the cup, secured to a cup portion formed of a flexible material, such as silicone. A movable handle secures to the annular portion which serves a dual function of securing the rigidity of the cup in the open position, and rotating sideways to accommodate storage when in the closed position. | 07-23-2009 |
| 20100251906 | SALAD SPINNER - A rotatable greens drying device that includes a lid, a rotatable colander, a drive mechanism for rotating the colander, and a receiving ring fan which transfers rotational force from the drive mechanism to the rotatable colander. The fast moving, drier air circulated by the receiving ring fan naturally helps evaporate moisture from the surface of the greens and it helps expel water through container holes. This embodiment also allows air exposure of the leafy contents via the perforations within the spinning colander which further reduces surface moisture. | 10-07-2010 |
Timothy T. Murphy, Austin, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20120272033 | System and Method for Managing Space Allocation within a File System - A chassis management controller includes a root file system, a shared memory, a daemon process module, and an interposer library. The root file system includes a plurality of directories associated with firmware applications of the chassis management controller. The daemon process module is configured to read the parameters of the directories, and to create, in the shared memory, a table including parameters of the directories. The interposer library is configured to intercept an input/output library call for an operation associated with one of the firmware applications, to read table entries associated the one or the firmware applications, to determine whether the operation associated with the input/output library call would result in an over-allocation of a parameter in the entries of the table, and if the operation would not result in the over-allocation, pass the output operation to a standard system library, otherwise to return an out of space error message. | 10-25-2012 |
Tom Murphy, Arlington, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090211845 | Lockable folding stairs - A two-piece locking folding stair is provided with a spring-like locking mechanism. The spring-like device, deployed one on of the two members, includes a protruding member which engages a notch on the other member when the stairs are in the full open, or locked position. When the stairs are opened, the device moves into a position which prevents the stairs from folding unintentionally. To unlock the assembly, the spring-like device is depressed thus releasing the protruding member from a corresponding notch, allowing the stairs to be folded to the closed position for stowing or transport. | 08-27-2009 |