Patents by Inventor Louis DUMOULIN
Louis DUMOULIN 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: 10807617Abstract: A retaining system for a mass-transit vehicle adapted to travel on a guideway includes a longitudinal retaining track having two retaining rails. Each retaining rail has a projection projecting inwardly toward the other retaining rail. A grabbing mechanism of the mass-transit vehicle has grabbing portions extending outwardly underneath the projections of the retaining rails. The grabbing portions are pivotally and resiliently connected to a wheelset of the mass-transit vehicle proximate a midplane of the body. When the mass-transit vehicle rolls on one side past a predetermined angle, an opposite one of the grabbing portions is operative to contact a corresponding one of the horizontal projections. The roll of the mass-transit vehicle is thereby gradually stopped under a force developed by a corresponding resilient element.Type: GrantFiled: April 28, 2020Date of Patent: October 20, 2020Assignee: Bombardier Transportation GmbHInventors: David Bazinet, Louis Dumoulin
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Patent number: 10442448Abstract: A secondary suspension system for a railcar comprises a chassis, a primary spring, a levelling actuator, a first hydraulic circuit and a secondary spring. The levelling actuator is adapted to be connected to the carbody. A piston shoulder, located at the lower portion of the piston and below an opening in the chassis, reaches farther than the opening so as to be capable of catching the chassis. The secondary spring is at least partially positioned underneath the piston shoulder. The piston is operative to adopt a high position inside the body under a pressure of a hydraulic fluid injected in a lower chamber below a piston head. This makes the piston shoulder abut against the chassis, thereby compressing the primary spring between the body and the chassis without compressing the secondary suspension.Type: GrantFiled: March 8, 2017Date of Patent: October 15, 2019Assignee: BOMBARDIER TRANSPORTATION GMBHInventors: Mario Monette, Louis Dumoulin, Benoit Lussier
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Publication number: 20180257678Abstract: A secondary suspension system for a railcar comprises a chassis, a primary spring, a levelling actuator, a first hydraulic circuit and a secondary spring. The levelling actuator is adapted to be connected to the carbody. A piston shoulder, located at the lower portion of the piston and below an opening in the chassis, reaches farther than the opening so as to be capable of catching the chassis. The secondary spring is at least partially positioned underneath the piston shoulder. The piston is operative to adopt a high position inside the body under a pressure of a hydraulic fluid injected in a lower chamber below a piston head. This makes the piston shoulder abut against the chassis, thereby compressing the primary spring between the body and the chassis without compressing the secondary suspension.Type: ApplicationFiled: March 8, 2017Publication date: September 13, 2018Inventors: Mario MONETTE, Louis DUMOULIN, Benoit LUSSIER
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Patent number: 9877370Abstract: The invention provides a lighting device (100) comprising a first set of light emitting diodes (10) arranged to emit light (14) in a first wavelength range of 300 nm-490 nm, a second set of light emitting diodes (11) arranged to emit light (15) in a second wavelength range of 300 nm-490 nm, a first luminescent element (12) radiationally coupled to the first and second set of light emitting diodes and arranged to convert at least a part of the light of the first wavelength range and at least a part of the light of the second wavelength range into first luminescent element light, a second luminescent element (13) radiationally coupled to at least a subset of the second set of light emitting diodes and arranged to convert at least a part of the light (15) of the second wavelength range into second luminescent element light, wherein, during operation, the brightness level of the light (14) emitted by the first set of light emitting diodes (10) and the brightness level of the light (15) emitted by the second set oType: GrantFiled: June 12, 2014Date of Patent: January 23, 2018Assignee: PHILIPS LIGHTING HOLDING B.V.Inventors: Martinus Petrus Joseph Peeters, René Theodorus Wegh, Raimond Louis Dumoulin, Marcellus Jacobus Johannes Van Der Lubbe
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Patent number: 9867255Abstract: A light emitting arrangement is adapted to produce white output light of a total luminous intensity Itot and having an emission peak in the wavelength range of from 400 to 440 nm, comprising: a first light emitting element adapted to emit light of a first luminous intensity I1 and having an emission peak in a first wavelength range of from 440 to 460 nm; and a second light emitting element adapted to emit light of a second luminous intensity I2 and having an emission peak in a second wavelength range of from 380 to 440 nm, wherein the first light emitting element and the second light emitting element are independently controllable such that I2 can be adjusted independently of I1. The possibility of controlling the contribution of deep blue light allows a natural appearance of a crisp white light source at all emission intensities, and may also be used to enhance perception of contrast.Type: GrantFiled: June 8, 2015Date of Patent: January 9, 2018Assignee: PHILIPS LIGHTING HOLDING B.V.Inventors: Wouter Oepts, Lucas Josef Maria Schlangen, Raimond Louis Dumoulin, Wiebe Wagemans
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Publication number: 20170111972Abstract: A light emitting arrangement is adapted to produce white output light of a total luminous intensity Itot and having an emission peak in the wavelength range of from 400 to 440 nm, comprising: a first light emitting element adapted to emit light of a first luminous intensity I1 and having an emission peak in a first wavelength range of from 440 to 460 nm; and a second light emitting element adapted to emit light of a second luminous intensity I2 and having an emission peak in a second wavelength range of from 380 to 440 nm, wherein the first light emitting element and the second light emitting element are independently controllable such that I2 can be adjusted independently of I1. The possibility of controlling the contribution of deep blue light allows a natural appearance of a crisp white light source at all emission intensities, and may also be used to enhance perception of contrast.Type: ApplicationFiled: June 8, 2015Publication date: April 20, 2017Inventors: Wouter OEPTS, Lucas Josef Maria SCHLANGEN, Raimond Louis DUMOULIN, Wiebe WAGEMANS
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Publication number: 20160212804Abstract: The invention provides a lighting device (100) comprising a first set of light emitting diodes (10) arranged to emit light (14) in a first wavelength range of 300 nm-490 nm, a second set of light emitting diodes (11) arranged to emit light (15) in a second wavelength range of 300 nm-490 nm, a first luminescent element (12) radiationally coupled to the first and second set of light emitting diodes and arranged to convert at least a part of the light of the first wavelength range and at least a part of the light of the second wavelength range into first luminescent element light, a second luminescent element (13) radiationally coupled to at least a subset of the second set of light emitting diodes and arranged to convert at least a part of the light (15) of the second wavelength range into second luminescent element light, wherein, during operation, the brightness level of the light (14) emitted by the first set of light emitting diodes (10) and the brightness level of the light (15) emitted by the second set oType: ApplicationFiled: June 12, 2014Publication date: July 21, 2016Inventors: Martinus Petrus Joseph PEETERS, René Theodorus WEGH, Raimond Louis DUMOULIN, Marcellus Jacobus Johannes VAN DER LUBBE
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Patent number: 9172213Abstract: The invention describes a method of manufacturing a VCSEL module (100) comprising at least one VCSEL chip (33) with an upper side (U) and a lower side (L) and with a plurality of VCSEL units (55) on a common carrier structure (35), the VCSEL units (55) comprising a first doped layer (50) of a first type facing towards the lower side (L) and a second doped layer (23) of a second type facing towards the upper side (U). The method comprises the steps of dividing the VCSEL chip (33) into a plurality of subarrays (39a, 39b, 39c, 39d, 39e, 39f, 39g, 39h, 39i) with at least one VCSEL unit (55) each, electrically connecting at least some of the subarrays (39a, 39b, 39c, 39d, 39e, 39f, 39g, 39h, 39i) in series. The invention also describes a VCSEL module (100) manufactured in such process.Type: GrantFiled: February 22, 2013Date of Patent: October 27, 2015Assignee: Koninklijke Philips N.V.Inventors: Stephan Gronenborn, Armand Pruijmboom, Raimond Louis Dumoulin, Michael Miller
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Patent number: 9065235Abstract: The present invention relates to a method of assembling VCSEL chips (1) on a sub-mount (2). A de-wetting layer (13) is deposited on a connecting side of the VCSEL chips (1) which is to be connected to the sub-mount (2). A further de-wetting layer (13) is deposited on a connecting side of the sub-mount (2) which is to be connected to the VCSEL chips (1). The de-wetting layers (13) are deposited with a patterned design or are patterned after depositing to define connecting areas (21) on the sub-mount (2) and the VCSEL chips (1). A solder (15) is applied to the connecting areas (21) of at least one of the two connecting sides. The VCSEL chips (1) are placed on the sub-mount (2) and soldered to the sub-mount (2) to electrically and mechanically connect the VCSEL chips (1) and the sub-mount (2). With the proposed method a high alignment accuracy of the VCSEL chips (1) on the sub-mount (2) is achieved without time consuming measures.Type: GrantFiled: October 8, 2012Date of Patent: June 23, 2015Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Armand Pruijmboom, Raimond Louis Dumoulin, Michael Miller
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Publication number: 20150071320Abstract: The invention describes a method of manufacturing a VCSEL module (100) comprising at least one VCSEL chip (33) with an upper side (U) and a lower side (L) and with a plurality of VCSEL units (55) on a common carrier structure (35), the VCSEL units (55) comprising a first doped layer (50) of a first type facing towards the lower side (L) and a second doped layer (23) of a second type facing towards the upper side (U). The method comprises the steps of dividing the VCSEL chip (33) into a plurality of subarrays (39a, 39b, 39c, 39d, 39e, 39f, 39g, 39h, 39i) with at least one VCSEL unit (55) each, electrically connecting at least some of the subarrays (39a, 39b, 39c, 39d, 39e, 39f, 39g, 39h, 39i) in series. The invention also describes a VCSEL module (100) manufactured in such process.Type: ApplicationFiled: February 22, 2013Publication date: March 12, 2015Inventors: Stephan Gronenborn, Armand Pruijmboom, Raimond Louis Dumoulin, Michael Miller
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Publication number: 20150036345Abstract: The disclosed embodiments relate to a light structure (100, 200, 300, 400) comprising a heat sink (110, 210, 310, 410), a plurality of ceramic tiles (120, 220, 320, 420), at least one LED (130, 230, 330, 430) arranged on each ceramic tile (120, 220, 320, 420), a plurality of wires connecting the LEDs (130, 230, 330, 430), the plurality of ceramic tiles (120, 220, 320, 420) being in direct contact with the heat sink (110, 210, 310, 410).Type: ApplicationFiled: April 4, 2013Publication date: February 5, 2015Inventors: Stefan Marcus Verbrugh, Ralph Kurt, Raimond Louis Dumoulin
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Publication number: 20140348192Abstract: The present invention relates to a method of assembling VCSEL chips (1) on a sub-mount (2). A de-wetting layer (13) is deposited on a connecting side of the VCSEL chips (1) which is to be connected to the sub-mount (2). A further de-wetting layer (13) is deposited on a connecting side of the sub-mount (2) which is to be connected to the VCSEL chips (1). The de-wetting layers (13) are deposited with a patterned design or are patterned after depositing to define connecting areas (21) on the sub-mount (2) and the VCSEL chips (1). A solder (15) is applied to the connecting areas (21) of at least one of the two connecting sides. The VCSEL chips (1) are placed on the sub-mount (2) and soldered to the sub-mount (2) to electrically and mechanically connect the VCSEL chips (1) and the sub-mount (2). With the proposed method a high alignment accuracy of the VCSEL chips (1) on the sub-mount (2) is achieved without time consuming measures.Type: ApplicationFiled: October 8, 2012Publication date: November 27, 2014Inventors: Armand Pruijmboom, Raimond Louis Dumoulin, Michael Miller
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Patent number: 4844641Abstract: A disposable toothbrush comprises a toothbrush body having bristles, and a toothbrush back containing a dose of toothpaste. The toothpaste is isolated from the bristles by a protective film. A safety cap retains the toothbrush back separate from the toothbrugh body. Removal of the cap allows the back to approach the body, which causes tearing of the protective film and distribution of the toothpaste onto the bristles.Type: GrantFiled: July 29, 1987Date of Patent: July 4, 1989Inventors: Jean-Pierre Grosfilley, Jean-Louis Dumoulin