Patents by Inventor Alain Arnaud

Alain Arnaud has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8226428
    Abstract: In an electrical connection for high-voltage or medium-voltage switchgear, a bar (2) is inserted in a recess (6) provided with a projection (10). In the invention, the dimensions are established so that the axes (AA, BB) of the bar (2) and of the projection (10) can be inclined relative to each other. Spring-forming conductor elements (12, 14) establish the electrical connection even in the event of tilt. A high-performance electrical contact can thus be obtained compactly, which makes it possible to perform assembly/disassembly operations on electrical equipment without any additional element of the telescopic ferrule or separable bar type.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: July 24, 2012
    Assignee: Areva T & D SA
    Inventors: Alain Arnaud, Jean-Pierre Roulet, Jean-Michel Berals
  • Publication number: 20090130922
    Abstract: In an electrical connection for high-voltage or medium-voltage switchgear, a bar (2) is inserted in a recess (6) provided with a projection (10). In the invention, the dimensions are established so that the axes (AA, BB) of the bar (2) and of the projection (10) can be inclined relative to each other. Spring-forming conductor elements (12, 14) establish the electrical connection even in the event of tilt. A high-performance electrical contact can thus be obtained compactly, which makes it possible to perform assembly/disassembly operations on electrical equipment without any additional element of the telescopic ferrule or separable bar type.
    Type: Application
    Filed: July 21, 2006
    Publication date: May 21, 2009
    Applicant: AREVA T&D SA
    Inventors: Alain Arnaud, Jean-Pierre Roulet, Jean-Michel Berals
  • Patent number: 7311976
    Abstract: A glazing coated with at least one layer having thermochromic properties comprising vanadium oxide, and also with at least one other layer having thermal properties, such as an infrared reflecting layer, and/or at least one other layer having optical properties, such as antireflection in the visible, and/or electrical conduction properties; and having a particular application for making solar control glazing.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: December 25, 2007
    Assignee: Saint-Gobain Glass France
    Inventors: Alain Arnaud, Fabien Beteille, Jean-Christophe Giron, Francois Lerbet
  • Patent number: 7240040
    Abstract: A method for generating look-up tables for a high speed multi-bit Real-time Deterministic Finite state Automaton (hereinafter RDFA). The method begins with a DFA generated in accordance with the prior art. For each state in the DFA, and for each of the bytes recognized in parallel the following occurs. First an n-closure list is generated. An n-closure list is a list of states reachable in n-transitions from the current state. Next an alphabet transition list is generated for each state. An “alphabet transition list” is a list of the transitions out of a particular state for each of the characters in an alphabet. Finally, the transitions are grouped into classes. That is, the transitions that go to the same state are grouped into the same class. Each class is used to identify the next state. The result is a state machine that has less states than the original DFA.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: July 3, 2007
    Assignee: Safenet, Inc.
    Inventors: Daniel Wyschogrod, Alain Arnaud, David Eric Berman Lees, Leonid Leibman
  • Patent number: 7236351
    Abstract: The high-voltage metal-clad substation element comprises at least one circuit-breaker connected electrically and mechanically to at least one set of busbars (3, 4) extending along an axis (D) that extends transversely to the longitudinal axis (AX) of the circuit-breaker. The metal case (1) is fixed to the ground via a hinge which allows the case to tilt slightly when said set of busbars (3, 4) expands along said transverse axis (D). This configuration makes it possible to omit or to reduce the use of axial bellows on the set of busbars, thereby reducing the cost of manufacturing the metal-clad substation. Advantageously, in association with the hinge, the metal case is designed to have some flexibility to reduce mechanical stresses when the set of busbars expands.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: June 26, 2007
    Assignee: Areva T & D SA
    Inventors: Michel Chavot, Alain Arnaud
  • Publication number: 20050147825
    Abstract: A glazing coated with at least one layer having thermochromic properties comprising vanadium oxide, and also with at least one other layer having thermal properties, such as an infrared reflecting layer, and/or at least one other layer having optical properties, such as antireflection in the visible, and/or electrical conduction properties; and having a particular application for making solar control glazing.
    Type: Application
    Filed: February 16, 2005
    Publication date: July 7, 2005
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Alain Arnaud, Fabien Beteille, Jean-Christophe Giron, Francois Lerbet
  • Publication number: 20050141175
    Abstract: The high-voltage metal-clad substation element comprises at least one circuit-breaker connected electrically and mechanically to at least one set of busbars (3, 4) extending along an axis (D) that extends transversely to the longitudinal axis (AX) of the circuit-breaker. The metal case (1) is fixed to the ground via a hinge which allows the case to tilt slightly when said set of busbars (3, 4) expands along said transverse axis (D). This configuration makes it possible to omit or to reduce the use of axial bellows on the set of busbars, thereby reducing the cost of manufacturing the metal-clad substation. Advantageously, in association with the hinge, the metal case is designed to have some flexibility to reduce mechanical stresses when the set of busbars expands.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 30, 2005
    Inventors: Michel Chavot, Alain Arnaud
  • Patent number: 6872453
    Abstract: A glazing coated with at least one layer having thermochromic properties comprising vanadium oxide, and also with at least one other layer having thermal properties, such as an infrared reflecting layer, and/or at least one other layer having optical properties, such as antireflection in the visible, and/or electrical conduction properties; and having a particular application for making solar control glazing.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: March 29, 2005
    Assignee: Saint-Gobain Glass France
    Inventors: Alain Arnaud, Fabien Beteille, Jean-Christophe Giron, Francois Lerbet
  • Patent number: 6856981
    Abstract: A system and method in accordance with the present invention determines in real-time the portions of a set of characters from a data or character stream which satisfies one or more predetermined regular expressions. A Real-time Deterministic Finite state Automaton (RDFA) ensures that the set of characters is processed at high speeds with relatively small memory requirements. An optimized state machine models the regular expression(s) and state related alphabet lookup and next state tables are generated. Characters from the data stream are processed in parallel using the alphabet lookup and next state tables, to determine whether to transition to a next state or a terminal state, until the regular expression is satisfied or processing is terminated. Additional means may be implemented to determine a next action from satisfaction of the regular expression.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: February 15, 2005
    Assignee: SafeNet, Inc.
    Inventors: Daniel Wyschogrod, Alain Arnaud, David Eric Berman Lees, Leonid Leibman
  • Publication number: 20040005472
    Abstract: A glazing coated with at least one layer having thermochromic properties comprising vanadium oxide, and also with at least one other layer having thermal properties, such as an infrared reflecting layer, and/or at least one other layer having optical properties, such as antireflection in the visible, and/or electrical conduction properties; and having a particular application for making solar control glazing.
    Type: Application
    Filed: January 21, 2003
    Publication date: January 8, 2004
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Alain Arnaud, Fabien Beteille, Jean-Christophe Giron, Francois Lerbet
  • Publication number: 20030110208
    Abstract: Data that spans multiple packets is processes. A finite state machine is used to process the data in each packet and the “state” of a finite state machine is saved after processing a packet. The saved state is stored with information that identifies the particular data stream from which the packet originated. This means that a state machine engine (hardware implementation of the finite state machine) is not tied to a particular data stream. The present invention makes it possible to utilize state machine co-processors very efficiently in a multiple engine/multiple data stream system.
    Type: Application
    Filed: January 24, 2003
    Publication date: June 12, 2003
    Applicant: Raqia Networks, Inc.
    Inventors: Daniel Wyschogrod, Alain Arnaud, David Eric Berman Lees
  • Publication number: 20030065800
    Abstract: A method for generating look-up tables for a high speed multi-bit Real-time Deterministic Finite state Automaton (hereinafter RDFA). The method begins with a DFA generated in accordance with the prior art. For each state in the DFA, and for each of the bytes recognized in parallel the following occurs. First an n-closure list is generated. An n-closure list is a list of states reachable in n-transitions from the current state. Next an alphabet transition list is generated for each state. An “alphabet transition list” is a list of the transitions out of a particular state for each of the characters in an alphabet. Finally, the transitions are grouped into classes. That is, the transitions that go to the same state are grouped into the same class. Each class is used to identify the next state. The result is a state machine that has less states than the original DFA.
    Type: Application
    Filed: August 8, 2002
    Publication date: April 3, 2003
    Applicant: Raqia Networks Inc.
    Inventors: Daniel Wyschogrod, Alain Arnaud, David Eric Berman Lees, Leonid Leibman
  • Publication number: 20030051043
    Abstract: A system and method in accordance with the present invention determines in real-time the portions of a set of characters from a data or character stream which satisfies one or more predetermined regular expressions. A Real-time Deterministic Einite state Automaton (RDFA) ensures that the set of characters is processed at high speeds with relatively small memory requirements. An optimized state machine models the regular expression(s) and state related alphabet lookup and next state tables are generated. Characters from the data stream are processed in parallel using the alphabet lookup and next state tables, to determine whether to transition to a next state or a terminal state, until the regular expression is satisfied or processing is terminated. Additional means may be implemented to determine a next action from satisfaction of the regular expression.
    Type: Application
    Filed: December 3, 2001
    Publication date: March 13, 2003
    Applicant: Raqia Networks Inc.
    Inventors: Daniel Wyschogrod, Alain Arnaud, David Eric Berman Lees, Leonid Leibman
  • Publication number: 20020037421
    Abstract: A glazing coated with at least one layer having thermochromic properties comprising vanadium oxide, and also with at least one other layer having thermal properties, such as an infrared reflecting layer, and/or at least one other layer having optical properties, such as antireflection in the visible, and/or electrical conduction properties; and having a particular application for making solar control glazing.
    Type: Application
    Filed: May 23, 2001
    Publication date: March 28, 2002
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Alain Arnaud, Fabien Beteille, Jean-Christophe Giron, Francois Lerbet
  • Patent number: 5462596
    Abstract: An apparatus for the distribution of pulverulent solids suspended in a gas on a moving substrate, particularly a ribbon of glass, has two walls defining a strip-like cavity positioned transversely to the substrate travel direction and ending in the vicinity of the substrate in a distribution slot. The cavity is provided with at least one partition positioned so as to longitudinally compartmentalize it, each of the compartments being coupled with pulverulent solid injectors and pressurized gas injectors.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: October 31, 1995
    Assignee: Saint-Gobain Vitrage International
    Inventors: Alain Arnaud, Claude Morin
  • Patent number: 4858736
    Abstract: Shock absorber (31) for a hydropneumatic vehicle suspension element, comprising a disk (32) fastened in an outer casing having ports (30, 38) for the passage of the hydraulic fluid, first elements (48, 49, 37a, 37b) allowing this passage in only one direction for some ports (30) and in the opposite direction for the other ports (38), and second elements (53, 54, 55) for fastening the first elements to the disk; the abovementioned first elements comprise, mounted on the two opposite faces of the disk (32), stacks (46, 47) of elastically flexible metal washers (46a-46c; 47a-47c) arranged in rigid annular deflectors (48, 49) located opposite the hydraulic-fluid passage ports (30, 38). The deflectors protect the flexible washers against any damage caused by the very high peaks of hydraulic pressure which occur on uneven ground.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: August 22, 1989
    Assignee: S.A.M.M. - Societe D'Applications Des Machines Motrices
    Inventors: Alain Arnaud, Jean-Michel Perrochat, Joseph Philippe
  • Patent number: 4629169
    Abstract: An oleopneumatic vehicle suspension element in particular for a heavy vehicle, comprising a piston (29) movable in a cylinder (28), a gas accumulator (26), a shock absorber (36) immersed in oil (37) filling the volume between the piston (29) and a diaphragm (27). According to the invention, the suspension element comprises a caloduct (50) connecting the shock absorber (36) to a cold source formed by a free surface (42) of the housing (33) of the suspension element (25), the caloduct (50) containing a fluid which evaporates in contact with the shock absorber (36) heated by the oil, then travels to the cold source (42) where it is condensed and returns thereafter to the shock absorber (36) where it again evaporates. This cooling device enables the temperature of the oil to be limited to the maximum acceptable value and maintains the ground clearance of the vehicle constant.
    Type: Grant
    Filed: December 12, 1984
    Date of Patent: December 16, 1986
    Assignee: S.A.M.M. - Societe d'Applications des Machines Motrices
    Inventors: Alain Arnaud, Thierry Bouiges
  • Patent number: 4366250
    Abstract: This process for preparing L .alpha.-amino-acid is characterized in that the corresponding racemic .alpha.-amino-acid is hydrolysed in liquid phase in a free form or in the form of a salt, by an agent containing an L-stereospecific amidase and in that the L .alpha.-amino-acid obtained is separated from the D .alpha.-amino-amid unhydrolysed. This process is appropriate for the preparation of optically active natural amino-acids.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: December 28, 1982
    Assignee: Anvar
    Inventors: Jean C. Jallageas, Alain Arnaud, Pierre Galzy
  • Patent number: 4001081
    Abstract: The present invention relates to a process for the preparation of amides.This process for the preparation of an amide by hydrolysis of the corresponding nitrile is characterized in that the said nitrile in aqueous solution is subjected to the action of bacteria having a nitrilasic activity, in that the pH of the said aqueous solution is maintained at a value at least equal to the limiting pH of the amide hydrolysis reaction, and in that the bacteria mass is separated from the amide solution.This process is useful in particular for the preparation of acrylamides.
    Type: Grant
    Filed: December 17, 1975
    Date of Patent: January 4, 1977
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Auguste Commeyras, Alain Arnaud, Pierre Galzy, Jean-Claude Jallageas
  • Patent number: 3940316
    Abstract: The present invention relates to a process for the production of organic acids by biologically hydrolysing the corresponding nitriles.This process is distinguished by the fact that the nitrile in aqueous solution is subjected to the action of bacteria showing nitrilasic activity, preferably selected from the species: Bacillus, Bacteridium as defined by Prevot, Micrococcus and Brevibacterium as defined by Bergey.The process according to the invention can be used in particular for the production of racemic lactic acid.
    Type: Grant
    Filed: September 17, 1974
    Date of Patent: February 24, 1976
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Auguste Commeyras, Alain Arnaud, Pierre Galzy, Jean-Claude Jallageas