Pratt, CA
Allen Pratt, London CA
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20110048286 | CEMENTITIOUS COMPOSITIONS CONTAINING FELDSPAR AND POZZOLANIC PARTICULATE MATERIAL, AND METHOD OF MAKING SAID COMPOSITION - A method of making a cementitious composition comprises (a) selecting at least one pozzolanic particulate material; (b) selecting and grinding at least one feldspar material to a fineness of at least 3000 Blaine; (c) mixing calcium oxide or calcium hydroxide with gypsum; (d) mixing the ground feldspar with the lime-gypsum mixture to produce an activator; (e) conditioning the pozzolanic particulate material with an aqueous solution; (f) adding the activator to the conditioned material to produce a slurry; and (g) curing the slurry in a sealed container. The pozzolanic particulate material can be slag, fly ash, or siliceous rock. A cementitious composition of the invention comprises a pozzolanic particulate material, a ground feldspar material, a lime compound and gypsum, and uses readily available materials, as an economic replacement for Portland cement, fly ash or other materials in filling, backfilling and paving, particularly for backfilling or stabilizing mine sites. | 03-03-2011 |
Barry Pratt, Brampton CA
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20110293093 | METHOD AND SYSTEM FOR IDENTITY-BASED KEY MANAGEMENT - Systems, methods and devices for distributing a group key between a transmitter and a group of receivers connected over a network. The described group key distribution can be implemented in any television network for encrypted transmission of television related content to large and dynamic groups of subscribers' receivers. Wherein each receiver contributes to the group key by securely transmitting its contribution to the transmitter. The transmitter also contributes to the group key and generates the group key based on all contributions. The transmitter further generates partial keys specific to each receiver such that each receiver can generate a copy of the group key from its contribution and the partial key it receives. The transmitter sends each receiver its corresponding partial key so that each receiver can calculate a copy of the group key. | 12-01-2011 |
Christine Pratt, Ottawa CA
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20130274344 | ESTROGENIC COMPOUNDS, PROCESS FOR THEIR PRODUCTION AND PHARMACEUTICAL USES THEREOF - The presently disclosed and claimed inventive concept(s) provides new estrogenic compounds of the general formula | 10-17-2013 |
Christine Pratt, Nepean CA
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20090142334 | DETECTION AND MODULATION OF IAPs AND NAIP FOR THE DIAGNOSIS AND TREATMENT OF PROLIFERATIVE DISEASE - Disclosed are diagnostic and prognostic kits for the detection and treatment of proliferative diseases such as ovarian cancer, breast cancer, and lymphoma. Also disclosed are cancer therapeutics utilizing IAP antisense nucleic acids, IAP fragments, and antibodies which specifically bind IAP polypeptides. | 06-04-2009 |
Derek Pratt, Ottawa CA
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20130123393 | INHIBITOR COMBINATION, RESIN MIXTURE CONTAINING SAME AND USE OF SAME - The use of a mixture of 5-pyrimidinol derivatives with sterically hindered phenol derivatives for adjusting the reactivity and the gel time of resin mixtures and reactive resin mortars based on radically polymerizable compounds is described. Furthermore, a resin mixture containing the inhibitor combination, a reactive resin mortar containing this resin mixture and two-component mortar systems with the reactive resin mortar according to the invention and a hardener with improved stability in storage and good low-temperature hardening properties are also described. The resin mixture according to the invention is suitable in particular for chemical fastening of construction elements in boreholes in various substrates. | 05-16-2013 |
20140323562 | THIOSULFINATE ANTIOXIDANTS AND METHODS OF USE THEREOF - The present application provides compound of Formula X | 10-30-2014 |
Derek A. Pratt, Ottawa CA
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20140206585 | Substituted Diarylamines and Use of Same as Antioxidants - A compound of Formula I, Formula IA, Formula IB, or Formula II, or an acid or base addition salt thereof, and use of these compounds as antioxidants. | 07-24-2014 |
Derek A. Pratt, Kingston CA
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20100041683 | NOVEL CHAIN-BREAKING ANTIOXIDANTS - Compounds, preferably 5-pyrimidinol and 3-pyridinol derivatives, that act as effective chain breaking antioxidants of both the lipid and water-soluble variety (analogous to the natural Vitamins E and C), many of which are more reactive toward peroxyl radicals than the most potent form of Vitamin E. These compounds may exhibit many chemopreventive effects associated with conditions in which free radical-mediated cellular damage or disruption is implicated and Vitamins E and C are shown to have protective effects. Additionally, these compounds should be excellent oxidation inhibitors as additives to fuels, lubricants, rubber, polymers, chemicals, solvents and foodstuffs. | 02-18-2010 |
F. Dale Pratt, Calgary CA
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20080267011 | INTELLIGENT EFFICIENT SERVO-ACTUATOR FOR A DOWNHOLE PULSER - An improved energy efficient intelligent pulser driver used for generating a mud pulse in a MWD (measurement while drilling) application. In the pulser driver, a direct current (DC) powered control circuit activates a three-phase DC brushless motor that operates a servo-valve. Opening of the servo-valve equalizes pressure in a plenum causing the operation of a main valve reducing flow area and causing a pressure spike in the mud column. Closing of the servo-valve creates a reduction in mud pressure that operates the main valve and increases the flow area causing an end to the pressure spike. The servo-valve is powered both in opening and closing operations by the motor. | 10-30-2008 |
20090267791 | INTELLIGENT EFFICIENT SERVO-ACTUATOR FOR A DOWNHOLE PULSER - An improved energy efficient intelligent pulser driver used for generating a mud pulse in a MWD (measurement while drilling) application. In the pulser driver, a direct current (DC) powered control circuit activates a three-phase DC brushless motor that operates a servo-valve. Opening of the servo-valve equalizes pressure in a plenum causing the operation of a main valve reducing flow area and causing a pressure spike in the mud column. Closing of the servo-valve creates a reduction in mud pressure that operates the main valve and increases the flow area causing an end to the pressure spike. The servo-valve is powered both in opening and closing operations by the motor. | 10-29-2009 |
20130157515 | DYNAMIC CONTACT BAYONET ELECTRICAL CONNECTOR FOR HARSH ENVIRONMENTS - The present invention relates generally to multi-trace electrical connectors for harsh environments. More particularly, the present invention relates to bayonet rotary electrical connectors which maintain electrical connection dynamically, and which may have replaceable connector components. This type of connector is used, for example, in drilling operations where the connector must be rotated, for example during assembly, disassembly, or operation of bottom hole equipment or sensor or communications packages, and where the electrical connection may be maintained. | 06-20-2013 |
Jennifer Pratt, Surrey CA
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20140338578 | Planting Grid Device - The present seed spacing and planting device consists of a planar member with a plurality of sidewalls having beveled edges extending vertically therefrom, with an integral or removable grid. A plurality of evenly spaced pegs or apertures are disposed along the face of the base, aligned with said sidewalls. The present device is pressed into the ground, edges downwards, to create a plurality of depressions for planting either seeds or seedlings therein. For embodiments having pegs, the pegs automatically create the depressions because they are pressed into the soil along with the beveled edges. For embodiments having apertures, a dibble is additionally provided which is pushed through said apertures for creating the planting depressions. | 11-20-2014 |
Karl Pratt, Surrey CA
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20140338578 | Planting Grid Device - The present seed spacing and planting device consists of a planar member with a plurality of sidewalls having beveled edges extending vertically therefrom, with an integral or removable grid. A plurality of evenly spaced pegs or apertures are disposed along the face of the base, aligned with said sidewalls. The present device is pressed into the ground, edges downwards, to create a plurality of depressions for planting either seeds or seedlings therein. For embodiments having pegs, the pegs automatically create the depressions because they are pressed into the soil along with the beveled edges. For embodiments having apertures, a dibble is additionally provided which is pushed through said apertures for creating the planting depressions. | 11-20-2014 |
Kenneth K. Pratt, Tecumseh CA
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20080217314 | Self-adjusting liner assembly for welding torch - A self-adjusting liner assembly for a welding torch includes an elongated tubular main body having forward and rearward ends. An elongated tubular retainer including a shoulder is mountable in the main body. An elongated tubular piston including a shoulder cooperates with the retainer in a telescoping relationship in the main body. A resilient member is disposed in the main body and envelops a portion of the retainer and the piston. The resilient member urges the shoulders away from each other and the tubular piston toward the forward end of the main body. | 09-11-2008 |
20110233179 | SELF-ADJUSTING LINER ASSEMBLY FOR WELDING TORCH - A self-adjusting liner assembly for a welding torch includes an elongated tubular body having a forward end, a rearward end, and a central bore extending from the forward end to the rearward end. An elongated fixed tube is mounted in the bore. The assembly further includes an elongated tubular slide having an inner end, an outer end, and a shoulder proximate the outer end. The fixed tube is received in the inner end of the slide, and the slide cooperates with the fixed tube in a telescoping relationship in the bore. A resilient member is disposed in the bore and envelopes a portion of the fixed tube and the slide. The resilient member engages the shoulder of the slide and urges the slide away from the fixed tube and toward the forward end of the body. | 09-29-2011 |
Kylie Dawn Pratt, Ottawa CA
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20100285804 | APPARATUS, AND ASSOCIATED METHOD, FOR PERMITTING COMMUNICATION SYSTEM TRANSITION BASED UPON SIGNAL THRESHOLD DETERMINATION - A method and apparatus of optimizing transitioning between EVDO and CDMA 1X systems in a hybrid access terminal, the method having the steps of: preventing a reconnect data call from being sent from the hybrid access terminal. The preventing step including checking whether a transition between an EVDO and a CDMA 1X system is successful; and if not blocking the data call, and/or checking whether an EVDO received signal strength indication is greater than or equal to a receiver sensitivity on the hybrid access terminal; and if yes, allowing the hybrid access terminal to connect to the EVDO system, and/or delaying a connection timer for connecting to the EVDO system and/or applying fast dormancy to the hybrid access terminal in an EVDO state. | 11-11-2010 |
20110103381 | METHOD, AND ASSOCIATED APPARATUS, FOR TRANSITIONING COMMUNICATIONS OF HYBRID ACCESS TERMINAL BETWEEN COMMUNICATION SYSTEMS - A method and apparatus of optimizing transitioning between EVDO and CDMA 1X systems in a hybrid access terminal, the method having the steps of: detecting an EVDO received signal at the hybrid access terminal; and delaying a connection timer at the hybrid access terminal for connecting to the EVDO system. The apparatus being a hybrid access terminal adapted for optimizing transitioning between EVDO and CDMA 1X systems, the hybrid access terminal having a radio subsystem adapted to communicate with a network; a radio processor having a digital signal processor and adapted to interact with the radio subsystem; memory; a user interface; a processor adapted to run user applications and interact with the memory, the radio and the user interface and adapted to run applications, the hybrid access terminal characterized by having means for: detecting an EVDO received signal at the hybrid access terminal; and delaying a connection timer at the hybrid access terminal for connecting to the EVDO system. | 05-05-2011 |
20120208538 | METHOD AND APPARATUS FOR TRANSITIONING BETWEEN EVDO AND CDMA 1X SYSTEMS USING REDUNDANT DATA CALL BLOCKINGS - A method and apparatus of optimizing transitioning between EVDO and CDMA 1X systems in a hybrid access terminal, the method having the steps of: preventing a reconnect data call from being sent from the hybrid access terminal. The preventing step including checking whether a transition between an EVDO and a CDMA 1X system is successful; and if not blocking the data call, and/or checking whether an EVDO received signal strength indication is greater than or equal to a receiver sensitivity on the hybrid access terminal; and if yes, allowing the hybrid access terminal to connect to the EVDO system, and/or delaying a connection timer for connecting to the EVDO system and/or applying fast dormancy to the hybrid access terminal in an EVDO state. | 08-16-2012 |
20120294286 | APPARATUS, AND ASSOCIATED METHOD, FOR PERMITTING COMMUNICATION SYSTEM TRANSITION BASED UPON SIGNAL THRESHOLD DETERMINATION - A method and apparatus of optimizing transitioning between EVDO and CDMA 1X systems in a hybrid access terminal, the method having the steps of: preventing a reconnect data call from being sent from the hybrid access terminal. The preventing step including checking whether a transition between an EVDO and a CDMA 1X system is successful; and if not blocking the data call, and/or checking whether an EVDO received signal strength indication is greater than or equal to a receiver sensitivity on the hybrid access terminal; and if yes, allowing the hybrid access terminal to connect to the EVDO system, and/or delaying a connection timer for connecting to the EVDO system and/or applying fast dormancy to the hybrid access terminal in an EVDO state. | 11-22-2012 |
Kylie Dawn Pratt, Kanata CA
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20100190523 | METHOD AND APPARATUS FOR TRANSITIONING BETWEEN EVDO AND CDMA 1X SYSTEMS USING REDUNDANT DATA CALL BLOCKINGS - A method and apparatus of optimizing transitioning between EVDO and CDMA 1× systems in a hybrid access terminal, the method having the steps of: preventing a reconnect data call from being sent from the hybrid access terminal. The preventing step including checking whether a transition between an EVDO and a CDMA 1× system is successful; and if not blocking the data call, and/or checking whether an EVDO received signal strength indication is greater than or equal to a receiver sensitivity on the hybrid access terminal; and if yes, allowing the hybrid access terminal to connect to the EVDO system, and/or delaying a connection timer for connecting to the EVDO system and/or applying fast dormancy to the hybrid access terminal in an EVDO state. | 07-29-2010 |