Patents by Inventor Loic BONNARD
Loic BONNARD 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: 11788591Abstract: A braking device may include a brake casing rotatably assembled with respect to a shaft along an axis of rotation, first braking elements and second braking elements, forming a stack, an elastic return element configured to exert an application force on the first and second braking elements, and a brake release actuator, adapted to bias the elastic return element along a direction opposing the application direction. The braking device a may include a diffusion wedge and a pressure wedge positioned respectively to bear against the stack and against the elastic return element. The diffusion wedge and the pressure wedge may have contact surfaces defining an annular linear contact about the axis of rotation.Type: GrantFiled: April 29, 2019Date of Patent: October 17, 2023Assignee: POCLAIN HYDRAULICS INDUSTRIEInventors: Gilles Grillon, Loic Bonnard, Dominique Costaz, Julien Engrand, Philippe Telega
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Publication number: 20230147694Abstract: The hydraulic machine comprises: —a fixed part, —a part mounted so as to rotate about an axis (O-O) with respect to the fixed part, —a stack (50) of discs (53, 54) forming a brake or clutch, the discs being able to be in abutment against one another by way of friction surfaces (88) having a mean friction radius (Rf) with respect to the axis, —a push rod (80) that is able to push the discs into abutment against one another, in a direction parallel to the axis, over a thrust surface (4), the thrust surface having a mean thrust radius (Rp) with respect to the axis which extends to within or beyond the mean friction radius (Rf). The push rod (80) has a radial annular notch (90) indenting the push rod from an opposite side of the push rod from the axis (O-O) when the mean thrust radius (Rp) extends beyond the mean friction radius (Rf), and otherwise from the side of the push rod closest to the axis.Type: ApplicationFiled: March 24, 2021Publication date: May 11, 2023Inventors: Gilles GRILLON, Julien ENGRAND, Jérémy Gérard RESPECTE, Dominique COSTAZ, Loïc BONNARD
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Publication number: 20210123488Abstract: A braking device may include a brake casing rotatably assembled with respect to a shaft along an axis of rotation, first braking elements and second braking elements, forming a stack, an elastic return element configured to exert an application force on the first and second braking elements, and a brake release actuator, adapted to bias the elastic return element along a direction opposing the application direction. The braking device a may include a diffusion wedge and a pressure wedge positioned respectively to bear against the stack and against the elastic return element. The diffusion wedge and the pressure wedge may have contact surfaces defining an annular linear contact about the axis of rotation.Type: ApplicationFiled: April 29, 2019Publication date: April 29, 2021Inventors: Gilles Grillon, Loic Bonnard, Dominique Costaz, Julien Engrand, Philippe Telega
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Patent number: 10697442Abstract: The machine comprises distribution ducts connected to respective ones of first, second, and third enclosures (40, 42, 44), and a cylinder-capacity selector (21) suitable for being caused to take up a large cylinder capacity configuration in which the second enclosure (42) is connected to one of the main ducts (2), while the first and third enclosures (40, 44) are connected to the other main duct (1), and a small cylinder capacity configuration in which the second and third enclosures (42, 44) are connected to said one of the main ducts (2), while the first enclosure is connected to the other main duct (1). The machine further comprises a safety valve (150) having at least a first port (56) connected to said one of the main ducts (2), and a second port (58) connected to the third enclosure (44).Type: GrantFiled: October 27, 2016Date of Patent: June 30, 2020Assignee: POCLAIN HYDRAULICS INDUSTRIEInventors: Loic Bonnard, Dominique Costaz, Julien Viard
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Patent number: 10690109Abstract: The devices comprises a distributor (16) that presents distribution ducts opening out into a radial distribution face (16A), and a distributor-counterpart engaged in each other in such a manner that two main enclosures (18, 20) are provided between their opposite axially-extending faces. The device comprises a cylinder-capacity selector comprising two slides (24, 26) arranged after the other in a bore (22) of the element engaged in the other, to which are connected the main enclosures (18, 20) and at least some of the distribution ducts (30, 31). The slides are able to adopt at least three distinct configurations establishing different connections between the main ducts (18, 20) and the distribution ducts via the main enclosures, in order to be able to obtain at least three distinct operating cylinder capacities.Type: GrantFiled: November 1, 2016Date of Patent: June 23, 2020Assignee: POCLAIN HYDRAULICS INDUSTRIEInventors: Dominique Costaz, Loic Bonnard, Julien Viard
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Patent number: 10183334Abstract: A selection system, comprising: a sheath defining an internal housing extending in a longitudinal direction; a link rod disposed in said internal housing, and extending in the longitudinal direction; and a selection slide mounted to slide in the internal housing, about the link rod; the link rod being held stationary relative to the sheath against movement in translation in the longitudinal direction by stop means; the system being characterized in that the stop means comprise: a base that is a body of revolution and includes a conical portion; and a shell comprising two shell portions each including a conical portion configured to come to bear in plane manner against the conical portion of the base.Type: GrantFiled: May 31, 2017Date of Patent: January 22, 2019Assignee: POCLAIN HYDRAULICS INDUSTRIEInventors: Loic Bonnard, Dominique Costaz, Julien Viard
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Publication number: 20170348773Abstract: A selection system, comprising: a sheath defining an internal housing extending in a longitudinal direction; a link rod disposed in said internal housing, and extending in the longitudinal direction; and a selection slide mounted to slide in the internal housing, about the link rod; the link rod being held stationary relative to the sheath against movement in translation in the longitudinal direction by stop means; the system being characterized in that the stop means comprise: a base that is a body of revolution and includes a conical portion; and a shell comprising two shell portions each including a conical portion configured to come to bear in plane manner against the conical portion of the base.Type: ApplicationFiled: May 31, 2017Publication date: December 7, 2017Applicant: POCLAIN HYDRAULICS INDUSTRIEInventors: Loic BONNARD, Dominique COSTAZ, Julien VIARD
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Publication number: 20170130693Abstract: The devices comprises a distributor (16) that presents distribution ducts opening out into a radial distribution face (16A), and a distributor-counterpart engaged in each other in such a manner that two main enclosures (18, 20) are provided between their opposite axially-extending faces. The device comprises a cylinder-capacity selector comprising two slides (24, 26) arranged after the other in a bore (22) of the element engaged in the other, to which are connected the main enclosures (18, 20) and at least some of the distribution ducts (30, 31). The slides are able to adopt at least three distinct configurations establishing different connections between the main ducts (18, 20) and the distribution ducts via the main enclosures, in order to be able to obtain at least three distinct operating cylinder capacities.Type: ApplicationFiled: November 1, 2016Publication date: May 11, 2017Applicant: POCLAIN HYDRAULICS INDUSTRIEInventors: Dominique COSTAZ, Loic BONNARD, Julien VIARD
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Publication number: 20170122285Abstract: The machine comprises distribution ducts connected to respective ones of first, second, and third enclosures (40, 42, 44), and a cylinder-capacity selector (21) suitable for being caused to take up a large cylinder capacity configuration in which the second enclosure (42) is connected to one of the main ducts (2), while the first and third enclosures (40, 44) are connected to the other main duct (1), and a small cylinder capacity configuration in which the second and third enclosures (42, 44) are connected to said one of the main ducts (2), while the first enclosure is connected to the other main duct (1). The machine further comprises a safety valve (150) having at least a first port (56) connected to said one of the main ducts (2), and a second port (58) connected to the third enclosure (44).Type: ApplicationFiled: October 27, 2016Publication date: May 4, 2017Applicant: POCLAIN HYDRAULICS INDUSTRIEInventors: Loic BONNARD, Dominique COSTAZ, Julien VIARD