Patents by Inventor Pierre Dumont
Pierre Dumont 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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Publication number: 20060006196Abstract: A tappet pump comprising a reduced number of components. The pump comprises a pump body, a piston, a tappet and an elastic implement which exerts its force on the tappet and on the piston by means of a unidirectional link defined by interdependent limit stops.Type: ApplicationFiled: June 24, 2005Publication date: January 12, 2006Inventor: Pierre Dumont
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Patent number: 6729504Abstract: The invention relates to an air-intake device for drawing air into a liquid dispenser equipped with a rigid reservoir (R) and with an atmospheric pump (P) provided, in particular, with a cylindrical and conical body (C) underlying a support flange (S) fixed to the reservoir (R), said device being characterized in that it comprises a sleeve (1) designed to be fitted around said body (C) of the pump, under said flange (S), and having its bottom portion provided with a vent-forming collar (10) whose inside wall which serves to come into radial clamping engagement against said body has a surface state such that said collar (10) is both impermeable to the liquid and also permeable to air.Type: GrantFiled: December 16, 2002Date of Patent: May 4, 2004Assignee: Rexam Dispensing SystemsInventors: Jean-Louis Bougamont, Pierre Dumont
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Publication number: 20040026461Abstract: A micropump provided with a cylindrical body (1) containing a measuring chamber (10) defined by a piston (2) and communicating firstly with a tank via an inlet orifice (10a) provided with an inlet valve, and secondly with the outside via an outlet orifice (10b) provided with an outlet valve, the micropump being characterized in that the piston (2) is connected to an external reciprocating actuator, and in that at least one of said valves is constituted by a valve member (3, 6, 7) suitable for being driven in translation by friction contact with said piston (2) successively in one direction and then in the other, and whose stroke inside the chamber (10) is shorter than the stroke of said piston.Type: ApplicationFiled: June 10, 2003Publication date: February 12, 2004Inventors: Jean-Louis Bougamont, Pierre Dumont
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Patent number: 6666357Abstract: The invention relates to an air-intake device for drawing air into a liquid dispenser equipped with a rigid reservoir (R) and with an atmospheric pump (P) provided, in particular, with a cylindrical and conical body (C) and with a support flange (S) fixed to the neck of the reservoir (R) while bearing against a sealing gasket surrounding the pump body, said device being characterized in that it comprises a flat annular gasket-forming washer (1) whose free edge (10) is in leaktight abutment towards the outside under a frustoconical shoulder (20) carried by a collar (2) engaged over said pump body, and is capable of being deformed elastically under the effect of internal suction to enable air to be drawn in.Type: GrantFiled: December 16, 2002Date of Patent: December 23, 2003Assignee: Rexam-Dispensing SystemsInventors: Jean-Louis Bougamont, Bernard Clerget, Pierre Dumont
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Publication number: 20030150881Abstract: The invention relates to an air-intake device for drawing air into a liquid dispenser equipped with a rigid reservoir (R) and with an atmospheric pump (P) provided, in particular, with a cylindrical and conical body (C) and with a support flange (S) fixed to the neck of the reservoir (R) while bearing against a sealing gasket surrounding the pump body, said device being characterized in that it comprises a flat annular gasket-forming washer (1) whose free edge (10) is in leaktight abutment towards the outside under a frustoconical shoulder (20) carried by a collar (2) engaged over said pump body, and is capable of being deformed elastically under the effect of internal suction to enable air to be drawn in.Type: ApplicationFiled: December 16, 2002Publication date: August 14, 2003Inventors: Jean-Louis Bougamont, Bernard Clerget, Pierre Dumont
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Publication number: 20030150882Abstract: The invention relates to an air-intake device for drawing air into a liquid dispenser equipped with a rigid reservoir (R) and with an atmospheric pump (P) provided, in particular, with a cylindrical and conical body (C) underlying a support flange (S) fixed to the reservoir (R), said device being characterized in that it comprises a sleeve (1) designed to be fitted around said body (C) of the pump, under said flange (S), and having its bottom portion provided with a vent-forming collar (10) whose inside wall which serves to come into radial clamping engagement against said body has a surface state such that said collar (10) is both impermeable to the liquid and also permeable to air.Type: ApplicationFiled: December 16, 2002Publication date: August 14, 2003Inventors: Jean-Louis Bougamont, Pierre Dumont
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Patent number: 6463650Abstract: The invention relates to a device for assembling and packaging a pump (P) and a receptacle (R) of the type comprising firstly a fixing bush (1) provided on its inside wall with elastically deformable elements (11) for fastening beneath a collar (C) of the neck of the receptacle (R), and secondly with a packaging skirt (2) that is malleable, at least in part, clamped radially against the outside wall of said bush (1), the device being characterized in that said bush (1) has setbacks (10) formed in its outside wall in register with the fastener elements (11), defining an intermediate empty zone in which said skirt (2) is not liable to be deformed by said elements (11).Type: GrantFiled: April 17, 2000Date of Patent: October 15, 2002Assignee: Rexam SofabInventors: Jean-Louis Bougamont, Hervé Lompech, Pierre Dumont
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Patent number: 6415959Abstract: A pump having a plastic body which includes first and second body ends. The first body end of the pump body defines a metering chamber and has an inlet valve including a valve seat and a ball disposed therein. The second body end of the pump body cooperates with a spray tube carrying an outlet valve positioned near a bottom end thereof and mounted for axial movement with respect to the pump body. A helical spring surrounds the spray tube wherein a top end of the spray tube defines a laterally extending shoulder of which the helical spring abuts at one end. Both the pump body and the ball of the inlet valve are fabricated from a transparent or at least translucent plastic material.Type: GrantFiled: April 12, 2001Date of Patent: July 9, 2002Assignee: Rexam SOF ABInventors: Jean-Louis Bougamont, Hervé Lompech, Pierre Dumont
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Patent number: 6343916Abstract: A pump of the type comprising a substantially cylindrical body (1) in one piece provided, in its lower part, with a port (11) for admission of a product and with a valve constituted by a cavity (10) containing an element (2) capable of moving between a lower stop (12b) corresponding to the obturation of said admission port (11) and an upper stop (12a) corresponding to the opening of said port (11), and wherein said upper stop (12a) is formed by at least one discontinuous internal projection (12) whose transverse dimension (x) measured in the cavity (10) is at least equal to 20% of the largest transverse dimension of the mobile element (2).Type: GrantFiled: April 10, 2000Date of Patent: February 5, 2002Assignee: Rexam SofabInventors: Jean-Louis Bougamont, Pierre Dumont, Hervé Lompech
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Patent number: 6290104Abstract: The invention relates to a dispenser for dispensing liquids in the form of aerosols, the dispenser being of the type comprising a pump (1) engaged in sealed manner in the neck (C) of a container and provided firstly with a metering internal chamber and secondly with a spray tube (10) which projects to the outside, where it is engaged in a plunger knob (3), said spray tube (10) being suitable for being fed by the metering chamber and for communicating with a transverse ejection duct (21) equipped with a spray nozzle (22); the dispenser being, upstream from the ejection duct (21), a delivery or suction external chamber (20) for delivering or for sucking in a mixture of air and of liquid, the spray tube (10) opening out into the external chamber, and the external chamber enclosing a piston (32) secured to the plunger knob (3).Type: GrantFiled: November 24, 2000Date of Patent: September 18, 2001Assignee: Rexam SofabInventors: Jean-Louis Bougamont, Hervé Lompech, Pierre Dumont
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Patent number: 6206246Abstract: A dispensing device mountable on a tank having a sheathed pushbutton and movable collar. The collar having a first, temporary, high position on the pushbutton and being held in place frictionally by at least two projection members on the interior face of the collar in contact with the pushbutton. The collar having a second, low position and being held in place by catches cooperating with the neck of the tank.Type: GrantFiled: October 13, 2000Date of Patent: March 27, 2001Assignee: Rexam SofabInventors: Jean-Louis Bougamont, Hervé Lompech, Pierre Dumont
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Patent number: 6196424Abstract: The invention concerns a pump comprising a substantially cylindrical body (1) defining internally a metering chamber (11) whereof the lower end (1a) is provided with an intake orifice (10) equipped with a valve (12) and the upper end is provided with an outlet (20a) and closed by a piston (2) capable of moving in said chamber (11) by cooperating with elastic return means (4) outside the chamber (11), between a support up stop and a limit down stop.Type: GrantFiled: November 22, 1999Date of Patent: March 6, 2001Assignee: Rexam SofabInventors: Jean-Louis Bougamont, Hervé Lompech, Pierre Dumont
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Patent number: 6010036Abstract: The invention provides a dispenser of substance in liquid or paste form, the dispenser being of the type comprising, in particular, a cylinder (1) of substance surmounted firstly by an endpiece (2) provided with an internal evacuation duct (2a) and fitted, secondly with a substance-taking system provided with an exhaust valve, the dispenser being characterized in that the substance-taking system comprises a piston (3) received in the cylinder (1) and having an axial duct (30) passing therethrough and connected to an outlet tube (4) whose bottom end (4a) cooperates with the axial duct (30) to define an admission orifice (40) and whose top end (4b) is secured to the endpiece (2) forming a pushbutton which bears directly or indirectly on the outside face (3a) of the piston (3) to put the cylinder (1) under pressure.Type: GrantFiled: April 21, 1998Date of Patent: January 4, 2000Assignee: SOFABInventors: Jean-Louis Bougamont, Pierre Dumont, Pierre Amiel
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Patent number: 5788124Abstract: A device for packaging and dispensing a liquid or semi-liquid substance (P) in which a substance (P) in a receptacle (1), which is closed in a sealed manner firstly at a top by a cap (2) and secondly at a bottom by an internally movable punt (5), is compressed. The device includes an elastically deformable membrane (4) received in the top of the receptacle (1). The membrane (4) is formed by a substantially frustoconical axial valve (40) having a top portion provided with a central ejection orifice (41), a middle portion running into a channel section ring (42) and a bottom portion provided with a stretchable thin skirt (43) connected to a flange (44). The skirt (43) extends upwards along an internal wall of the receptacle (1). The flange (44) fixes the membrane (4) to the receptacle (1). A nozzle-forming tube (3) passes axially through the cap (2) of the receptacle (1). The tube (3) has a top end (31) projecting outside the receptacle (1) and an internal bottom end.Type: GrantFiled: April 12, 1996Date of Patent: August 4, 1998Assignee: SOFABInventors: Jean-Louis Bougamont, Pierre Dumont, Herve Lompech, Pierre Amiel
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Patent number: 5622318Abstract: A spray device for mounting on a fluid dispenser connected to a tank; the device being of the type comprising a head provided with an expansion chamber into which the outlet orifice of said dispenser opens out; the expansion chamber communicating with a nozzle via at least one outlet duct. The nozzle is constituted by a hinged inner element which is at least partially received in the outlet duct, and by an outer element fixed to bear in sealed manner against the inner element so as to define between their respective contacting surfaces a network of swirl-inducing channels communicating with the outlet duct and opening to the outside via a spray orifice formed through the outer element.Type: GrantFiled: November 1, 1994Date of Patent: April 22, 1997Assignee: SofabInventors: Jean-Louis Bougamont, Pierre DuMont, Herve Lompech
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Patent number: 5518377Abstract: A miniature metering pump of the type possessing a body provided with an inlet opening out into a metering chamber, associated with an inlet valve having a valve member, and with a piston having a plunger provided with an axial nozzle and flared at its bottom end to form a hood receiving a sealing gasket, its internal channel being associated with an outlet valve having a valve member, wherein said outlet valve member forms a portion of a single elastically deformable part that constitutes said gasket, shaped to have a bottom U-shaped ring assembled round the hood of the plunger, and connected at the top on the outside to a substantially cylindrical skirt for sealing and for returning the piston to its rest position, which skirt runs on from an annular flange for providing sealed connection with the body; and on the inside by a folded valve member that is generally conical or mitral-valve shaped, with a narrow top end carrying a cutout surrounded by a lip that opens to provide an outlet orifice.Type: GrantFiled: August 10, 1995Date of Patent: May 21, 1996Assignee: SofabInventors: Jean-Louis Bougamont, Pierre Dumont, Herve Lompech
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Patent number: 5349863Abstract: Shock or impact sensor which can be fixed to a structure (14) comprising, along a longitudinal axis (AL) perpendicular to the structure (14), a rod (12) which can be joined to the structure (14) by a first end (16), a weight or counterweight (24) joined to a second end of the rod (12) and acceleration detection fixed to weight or counterweight (24) to detect acceleration along an axis perpendicular to the longitudinal axis of the sensor.Type: GrantFiled: February 27, 1992Date of Patent: September 27, 1994Assignee: Societe Nationale Industrielle et AerospatialeInventors: Jean-Pierre Dumont, Riviere Daniel
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Patent number: 5142098Abstract: The invention relates to novel monoesters and diesters of 9,10-endoethano-9,10-dihydroanthracene-11,11-dicarboxylic acid.These novel monoesters and diesters correspond to the following structural chemical formula (II): ##STR1## in which R.sup.1 and R.sup.2 are identical or different and can represent H, an alkali metal or alkaline earth metal atom, a linear or branched alkyl group having from 1 to 6 carbon atoms, an alicyclic group having form 3 to 6 carbon atoms, an alkenyl group having from 2 to 6 carbon atoms, defined in their cis or trans variety, or an alkynyl group having from 2 to 6 carbon atoms, the said groups optionally being substituted by one or more functional groups such as ether, epoxide, halogeno, cyano, ester, aldehyde, ketone, aryl etc., where R.sup.1 and R.sup.2 cannot be H or ethyl simultaneously. These addition products constitute valuable intermediates for the preparation of methylidenemalonates in high yields and with a high purity.Type: GrantFiled: March 23, 1990Date of Patent: August 25, 1992Assignee: Laboratoires UPSAInventors: Nicole Bru-Magniez, Christian De Cock, Jacques Poupaert, Jean-Luc De Keyser, Pierre Dumont
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Patent number: 4931584Abstract: The invention relates to novel monoesters and diesters of 9,10-endoethano-9,10-dihydroanthracene-11,11-dicarboxylic acid.These novel monoesters and diesters correspond to the following structural chemical formula (II): ##STR1## in which R.sup.1 and R.sup.2 are identical or different and can represent H, an alkali metal or alkaline earth metal atom, a linear or branched alkyl group having from 1 to 6 carbon atoms, an alicyclic group having from 3 to 6 carbon atoms, an alkenyl group having from 2 to 6 carbon atoms, defined in their cis or trans variety, or an alkynyl group having from 2 to 6 carbon atoms, the said groups optionally being substituted by one or more functional groups such as ether, epoxide, halogeno, cyano, ester, aldehyde, ketone, aryl etc., where R.sup.1 and R.sup.2 cannot be H or ethyl simultaneously. These addition products constitute valuable intermediates for the preparation of methylidenemalonates in high yields and with a high purity.Type: GrantFiled: March 1, 1988Date of Patent: June 5, 1990Assignee: Laboratoires UPSAInventors: Nicole Bru-Magniez, Christian De Cock, Jacques Poupaert, Jean-Luc De Keyser, Pierre Dumont
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Patent number: D427899Type: GrantFiled: April 20, 1999Date of Patent: July 11, 2000Assignee: SOFABInventors: Jean-Louis Bougamont, Pierre Dumont, Christophe Roy