Patents by Inventor Didier Muller
Didier Muller 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).
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Patent number: 11920592Abstract: A dry pump for gases comprises a first rotor (1) comprising a first lobe portion (1A) and a first screw (1B), as well as a second rotor (2) comprising a second lobe portion (2A) and a second screw (2B). A casing delimits an internal volume in which are located together the first and second screws (1B, 2B) and the first and second lobe portions (1A, 2A). Each of the first and second screws (1B, 2B) comprises a threading invariable along its length. The first and second rotors (1, 2) turn in opposite directions and are located in successive configurations. In a first configuration of the rotors, the first and second lobe portions (1A, 2A), a portion of the first screw (1B), a portion of the second screw (2B) and the casing together delimit a chamber (30) which is closed. In a second configuration of the rotors, the chamber (30) has a smaller capacity than in the first configuration.Type: GrantFiled: March 14, 2019Date of Patent: March 5, 2024Assignee: ATELIERS BUSCH SAInventors: Théodore Iltchev, Stéphane Varrin, Didier Müller
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Patent number: 11725662Abstract: A pumping method in a pumping system comprises: a main vacuum pump with a gas inlet port connected to a vacuum chamber and a gas outlet port leading into a conduit before coming out into the gas outlet of the pumping system, a non-return valve positioned in the conduit between the gas outlet port and the gas outlet, and an auxiliary vacuum pump connected in parallel to the non-return valve. The main vacuum pump is activated in order to pump the gases contained in the vacuum chamber through the gas outlet port, simultaneously the auxiliary vacuum pump is activated and continues to operate all the while that the main vacuum pump pumps the gases contained in the vacuum chamber and/or all the while that the main vacuum pump maintains a defined pressure in the vacuum chamber. Also included is a pumping system.Type: GrantFiled: May 6, 2020Date of Patent: August 15, 2023Assignee: Ateliers Busch SAInventors: Didier Müller, Jean-Eric Larcher, Théodore Iltchev
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Publication number: 20230143219Abstract: The present invention concerns a dry vacuum pump comprising: a drive device (1) comprising a drive shaft (3) at one end of which is fixed at least one drive wheel (4) provided to set in motion at least one belt (5); at least two parallel rotors (7, 8) each having a shaft (9, 10) provided with a rotor element (11, 12), this shaft (9, 10) being able to be driven in rotation by the belt (5) and being equipped at one of its axial ends with a toothed wheel (13, 14), this pump having the special features that: the drive wheel (4) and the belt (5) are smooth; each shaft (9, 10) of the rotor (7, 8) comprises at least one smooth section (16, 17) arranged to co-operate with the belt (5), and the toothed wheels (13, 14) of the shafts (9, 10) of the rotor (7, 8) are dimensioned and arranged to mesh with one another.Type: ApplicationFiled: May 10, 2021Publication date: May 11, 2023Inventors: Didier MÜLLER, Théodore ILTCHEV, Artur BACHMANN
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Publication number: 20220378705Abstract: The present invention relates to a method for granulating an amphiphilic active ingredient or a pharmaceutically acceptable salt thereof, comprising a step for coating the active ingredient in a polar aprotic solvent in the presence of a polymer binder to obtain a granule.Type: ApplicationFiled: May 23, 2020Publication date: December 1, 2022Inventors: François FAURAN, Didier MULLER, Jean-Luc BARNOUX
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Publication number: 20220145886Abstract: A dry pump for gases comprises a first rotor (1) comprising a first lobe portion (1A) and a first screw (16), as well as a second rotor (2) comprising a second lobe portion (2A) and a second screw (2B). A casing delimits an internal volume in which are located together the first and second screws (1B, 2B) and the first and second lobe portions (1A, 2A). Each of the first and second screws (1B, 2B) comprises a threading invariable along its length. The first and second rotors (1, 2) turn in opposite directions and are located in successive configurations. In a first configuration of the rotors, the first and second lobe portions (1A, 2A), a portion of the first screw (16), a portion of the second screw (2B) and the casing together delimit a chamber (30) which is closed. In a second configuration of the rotors, the chamber (30) has a smaller capacity than in the first configuration.Type: ApplicationFiled: March 14, 2019Publication date: May 12, 2022Inventors: Théodore Iltchev, Stéphane Varrin, Didier Müller
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Patent number: 10808730Abstract: The present invention relates to a pumping system to generate a vacuum (SP), comprising a main vacuum pump which is a claw pump (3) having a gas suction inlet (2) connected to a vacuum chamber (1) and a gas discharge outlet (4) leading into a gas evacuation conduit (5) in the direction of a gas exhaust outlet (8) outside the pumping system. The pumping system comprises a non-return valve (6) positioned between the gas discharge outlet (4) and the gas exhaust outlet (8), and an auxiliary vacuum pump (7) connected in parallel to the non-return valve. In a pumping method by means of this pumping system (SP), the main vacuum pump (3) is started up in order to pump the gases contained in the vacuum chamber (1) and to discharge these gases through its gas discharge outlet (4), simultaneously to which the auxiliary vacuum pump (7) is started up.Type: GrantFiled: October 2, 2014Date of Patent: October 20, 2020Assignee: Ateliers Busch SAInventors: Didier Müller, Jean-Eric Larcher, Théodore Iltchev
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Publication number: 20200318640Abstract: A pumping method in a pumping system comprises: a main vacuum pump with a gas inlet port connected to a vacuum chamber and a gas outlet port leading into a conduit before coming out into the gas outlet of the pumping system, a non-return valve positioned in the conduit between the gas outlet port and the gas outlet, and an auxiliary vacuum pump connected in parallel to the non-return valve. The main vacuum pump is activated in order to pump the gases contained in the vacuum chamber through the gas outlet port, simultaneously the auxiliary vacuum pump is activated and continues to operate all the while that the main vacuum pump pumps the gases contained in the vacuum chamber and/or all the while that the main vacuum pump maintains a defined pressure in the vacuum chamber. Also included is a pumping system.Type: ApplicationFiled: May 6, 2020Publication date: October 8, 2020Inventors: Didier Müller, Jean-Eric Larcher, Théodore lltchev
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Patent number: 10760573Abstract: The present invention relates to a pumping method in a pumping system (SP, SPP) comprising: a main lubricated rotary vane vacuum pump (3) with a gas inlet port (2) connected to a vacuum chamber (1) and a gas outlet port (4) leading into a conduit (5) before coming out into the gas outlet (8) of the pumping system (SP, SPP), a non-return valve (6) positioned in the conduit (5) between the gas outlet port (4) and the gas outlet (8), and an auxiliary lubricated rotary vane vacuum pump (7) connected in parallel to the non-return valve (6).Type: GrantFiled: June 27, 2014Date of Patent: September 1, 2020Assignee: Ateliers Busch SAInventors: Didier Müller, Jean-Eric Larcher, Théodore Iltchev
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Patent number: 10260502Abstract: The present invention relates to a pumping method in a pumping system (SP) comprising: a primary dry screw-type vacuum pump (3) with a gas entry orifice (2) connected to a vacuum chamber (1) and a gas exit orifice (4) leading into a conduit (5) before coming out into the gas outlet (8) of the pumping system (SP), a non-return valve (6) positioned in the conduit (5) between the gas exit orifice (4) and the gas outlet (8), and an ejector (7) connected in parallel to the non-return valve (6).Type: GrantFiled: April 7, 2014Date of Patent: April 16, 2019Assignee: Ateliers Busch SAInventors: Didier Müller, Jean-Eric Larcher, Théodore Iltchev
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Publication number: 20170298935Abstract: The present invention relates to a pumping system to generate a vacuum (SP), comprising a main vacuum pump which is a dry screw pump (3) having a gas suction inlet (2) connected to a vacuum chamber (1) and a gas discharge outlet (4) leading into a gas evacuation conduit (5) in the direction of a gas exhaust outlet (8) outside the pumping system. The pumping system comprises a non-return valve (6) positioned between the gas discharge outlet (4) and the gas exhaust outlet (8), and an auxiliary vacuum pump (7) connected in parallel to the non-return valve. In a pumping method by means of this pumping system (SP), the main vacuum pump (3) is started up in order to pump the gases contained in the vacuum chamber (1) and to discharge these gases through its gas discharge outlet (4), simultaneously to which the auxiliary vacuum pump (7) is started up.Type: ApplicationFiled: September 26, 2014Publication date: October 19, 2017Inventors: Didier MÜLLER, Jean-Eric LARCHER, Théodore ILTCHEV
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Publication number: 20170284394Abstract: The present invention relates to a pumping system to generate a vacuum (SP), comprising a main vacuum pump which is a claw pump (3) having a gas suction inlet (2) connected to a vacuum chamber (1) and a gas discharge outlet (4) leading into a gas evacuation conduit (5) in the direction of a gas exhaust outlet (8) outside the pumping system. The pumping system comprises a non-return valve (6) positioned between the gas discharge outlet (4) and the gas exhaust outlet (8), and an auxiliary vacuum pump (7) connected in parallel to the non-return valve. In a pumping method by means of this pumping system (SP), the main vacuum pump (3) is started up in order to pump the gases contained in the vacuum chamber (1) and to discharge these gases through its gas discharge outlet (4), simultaneously to which the auxiliary vacuum pump (7) is started up.Type: ApplicationFiled: October 2, 2014Publication date: October 5, 2017Inventors: Didier MÜLLER, Jean-Eric LARCHER, Théodore ILTCHEV
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Publication number: 20170122321Abstract: The present invention relates to a pumping method in a pumping system (SP, SPP) comprising: a main lubricated rotary vane vacuum pump (3) with a gas inlet port (2) connected to a vacuum chamber (1) and a gas outlet port (4) leading into a conduit (5) before coming out into the gas outlet (8) of the pumping system (SP, SPP), a non-return valve (6) positioned in the conduit (5) between the gas outlet port (4) and the gas outlet (8), and an auxiliary lubricated rotary vane vacuum pump (7) connected in parallel to the non-return valve (6).Type: ApplicationFiled: June 27, 2014Publication date: May 4, 2017Inventors: Didier Müller, Jean-Eric Larcher, Théodore Iltchev
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Publication number: 20170089339Abstract: The present invention relates to a pumping method in a pumping system (SP) comprising: a primary dry screw-type vacuum pump (3) with a gas entry orifice (2) connected to a vacuum chamber (1) and a gas exit orifice (4) leading into a conduit (5) before coming out into the gas outlet (8) of the pumping system (SP), a non-return valve (6) positioned in the conduit (5) between the gas exit orifice (4) and the gas outlet (8), and an ejector (7) connected in parallel to the non-return valve (6).Type: ApplicationFiled: April 7, 2014Publication date: March 30, 2017Inventors: Didier Müller, Jean-Eric LARCHER, Théodore ILTCHEV
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Publication number: 20170045051Abstract: The present invention relates to a pumping method in a pumping system (SP, SPP) comprising: a primary lubricated rotary vane vacuum pump (3) with a gas inlet port (2) connected to a vacuum chamber (1) and a gas outlet port (4) leading into a conduit (5) before coming out into the gas outlet (8) of the pumping system (SP, SPP), a non-return valve (6) positioned in the conduit (5) between the gas outlet port (4) and the gas outlet (8), and an ejector (7) connected in parallel to the non-return valve (6). According to this method, the primary lubricated rotary vane vacuum pump (3) is set into action in order to pump the gases contained in the vacuum chamber (1) through the gas outlet port (4).Type: ApplicationFiled: May 1, 2014Publication date: February 16, 2017Inventors: Didier MÜLLER, Jean-Eric LARCHER, Théodore ILTCHEV
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Publication number: 20150098853Abstract: A screw-type positive displacement machine includes a housing with a first rotor and a second rotor which are mounted to rotate in the housing and which are driven in directions which are the opposite of one another. The positive displacement machine has a first motor and a second motor arranged in a drive casing and connected to the housing in such a way that the first rotor is driven by the first motor and the second rotor is driven by the second motor. Typically, the first motor and/or the second motor is an asynchronous motor.Type: ApplicationFiled: May 27, 2013Publication date: April 9, 2015Inventors: Didier Müller, Théodore Iltchev
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Patent number: 6064040Abstract: The invention relates to a method and apparatus for the localization or focusing of heating in a tempering furnace for glass panels. Glass panels are carried and supported in a furnace (2) by rollers (11). The furnace is provided with upper and lower nozzle boxes (4, 14), including nozzle heads (5, 15) for blasting hot convection air to heat the glass panels to a tempering temperature. The arrival of a load in the furnace is preceded by reading a load picture and by controlling radiation heat resistances (10) present in the furnace in such a way that radiation heating can be focused on the central areas of critical glass panels to provide extra heating therefor.Type: GrantFiled: February 18, 1999Date of Patent: May 16, 2000Assignee: Tamglass LTD OyInventors: Didier Muller, Olivier Muller, Volker Thiessen
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Patent number: 5764088Abstract: The control path of the switch (I) comprises an input stage (T2, T1) having an input (H) coupled to the input (E) for the control signal and having its output coupled to the control electrode (G) of the switch (I). A protection circuit (D1, Z2) coupled between the load (C) and the control path includes a threshold effect component (Z2) and a decoupling element (D1). On being made conductive by the current that results from a surge generated in a circuit of the load (C), the protection circuit (D1, Z2) is coupled to the input (H) of said input stage (T2, T1) to act on said switch (I) in the same way as a control signal for the switch (I). In this manner, the control path prevents current in the load (C) from dropping off suddenly.Type: GrantFiled: October 10, 1997Date of Patent: June 9, 1998Assignee: Alcatel Alsthom Compagnie Generale D'ElectriciteInventors: Jean-Paul Lavieville, Didier Muller
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Patent number: 5736246Abstract: A sizing composition is provided that includes at least one silane satisfying the following formula:Si(R.sup.1) (R.sup.2) (R.sup.3) (R.sup.4)wherein:R.sup.1 and R.sup.2 are each, independently, an alkoxy group;R.sup.3 is an alkoxy group or a hydrocarbon radical that optionally contains one or more nitrogens;R.sup.4 is a hydrocarbon radical that optionally contains one or more nitrogens, and includes at least one unsaturated ring substituted with at least one unsaturated chain conjugated with the unsaturated ring,that is useful for coating glass strands for reinforcement of organic or inorganic materials, the glass strands coated with such sizing compositions and the reinforced composite materials prepared therefrom, having mproved corrosion resistance, particularly in alkaline media.Type: GrantFiled: August 29, 1996Date of Patent: April 7, 1998Assignee: Vetrotex FranceInventors: Eric Augier, Didier Muller, Michel Arpin
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Patent number: D677281Type: GrantFiled: March 7, 2012Date of Patent: March 5, 2013Assignee: Ateliers Busch SAInventors: Didier Müller, Theodore Iltchev, Stephane Varrin, Philippe Schwob