公开(公告)号：US11095987B2

公开(公告)日：2021-08-17

申请号：US16668298

申请日：2019-10-30

Applicant: Bose Corporation

Inventor： Prateek Nath ,  Shawn J. Prevoir ,  Wit Bushko

IPC: B29C65/48 ,  H04R31/00 ,  B29K105/00 ,  B29K83/00 ,  H04R9/06 ,  B29C65/00 ,  H04R7/04 ,  H04R7/20 ,  B29L31/34

Abstract: A method of forming a device having a compliant member includes providing an elastomeric layer in an uncured state. The elastomeric layer is pre-cured to increase its viscosity. Subsequently, a bobbin and housing, each having an end, can be positioned such that their ends extend at least partially into the elastomeric layer. The elastomeric layer is cured to secure it to the bobbin housing. Examples of pre-cure and cure operations include one or more of a thermal cure, evaporative cure and ultraviolet cure, and the application of moisture, microwave energy and chemical additive. Due to the increased viscosity after the pre-cure, the migration of elastomeric material is substantially reduced relative to an uncured elastomeric material. The reduction in elastomeric material migration results in smaller menisci formed along the walls of the housing and bobbin, and reduced thinning of the compliant member formed at their ends.

公开(公告)号：US20180338207A1

公开(公告)日：2018-11-22

申请号：US15598065

申请日：2017-05-17

Applicant: Bose Corporation

Inventor： Prateek Nath ,  Shawn Prevoir ,  Wit Bushko

IPC: H04R9/06 ,  B29C65/48 ,  B29C65/00 ,  H04R7/04 ,  H04R31/00

CPC classification number: H04R7/04 ,  H04R7/20 ,  H04R2231/001 ,  H04R2231/003 ,  H04R2307/00 ,  H04R2307/025

Abstract: A method of forming a device having a compliant member includes providing an elastomeric layer in an uncured state. The elastomeric layer is pre-cured to increase its viscosity. Subsequently, a bobbin and housing, each having an end, can be positioned such that their ends extend at least partially into the elastomeric layer. The elastomeric layer is cured to secure it to the bobbin housing. Examples of pre-cure and cure operations include one or more of a thermal cure, evaporative cure and ultraviolet cure, and the application of moisture, microwave energy and chemical additive. Due to the increased viscosity after the pre-cure, the migration of elastomeric material is substantially reduced relative to an uncured elastomeric material. The reduction in elastomeric material migration results in smaller menisci formed along the walls of the housing and bobbin, and reduced thinning of the compliant member formed at their ends.

公开(公告)号：US20180160231A1

公开(公告)日：2018-06-07

申请号：US15875866

申请日：2018-01-19

Applicant: Bose Corporation

Inventor： Wit Bushko ,  Thomas Landemaine ,  Prateek Nath

IPC: H04R9/06 ,  H04R31/00 ,  H04R7/06 ,  H04R7/18 ,  B32B38/18 ,  H04R7/10 ,  H04R7/16

CPC classification number: H04R9/06 ,  B32B38/18 ,  B32B2307/51 ,  H04R7/06 ,  H04R7/10 ,  H04R7/16 ,  H04R7/18 ,  H04R31/003 ,  H04R2307/025

Abstract: A method of forming a device having a compliant member includes creating a membrane having one or more elastomeric layers which are at least partially cured. Another elastomeric layer is provided on the membrane in an uncured state. At least one of a bobbin and a housing are positioned so that an end of the bobbin or housing, or the ends of both the bobbin and housing, extend at least partially into the uncured elastomeric layer. The uncured elastomeric layer is then cured to secure it to the membrane and to the housing or bobbin, or both the housing and bobbin. The method substantially reduces or eliminates the formation of holes that can form during fabrication or use of the device.

公开(公告)号：US09913042B2

公开(公告)日：2018-03-06

申请号：US15182069

申请日：2016-06-14

Applicant: Bose Corporation

Inventor： Wit Bushko ,  Thomas Landemaine ,  Prateek Nath

IPC: H04R1/02 ,  H04R9/06 ,  B32B38/18 ,  H04R31/00 ,  H04R7/18 ,  H04R7/06

CPC classification number: H04R9/06 ,  B32B38/18 ,  B32B2307/51 ,  H04R7/06 ,  H04R7/10 ,  H04R7/16 ,  H04R7/18 ,  H04R31/003 ,  H04R2307/025

Abstract: A method of forming a device having a compliant member includes creating a membrane having one or more elastomeric layers which are at least partially cured. Another elastomeric layer is provided on the membrane in an uncured state. At least one of a bobbin and a housing are positioned so that an end of the bobbin or housing, or the ends of both the bobbin and housing, extend at least partially into the uncured elastomeric layer. The uncured elastomeric layer is then cured to secure it to the membrane and to the housing or bobbin, or both the housing and bobbin. The method substantially reduces or eliminates the formation of holes that can form during fabrication or use of the device.

公开(公告)号：US20170359656A1

公开(公告)日：2017-12-14

申请号：US15617108

申请日：2017-06-08

Applicant: Bose Corporation

Inventor： Wit Bushko ,  Thomas Landemaine ,  Prateek Nath

IPC: H04R7/24 ,  H04R7/04 ,  H04R9/06 ,  H04R9/02 ,  H04R7/16

Abstract: A bobbin for an electro-acoustic driver includes an outer surface, a substantially planar surface at an end of the bobbin, and a bobbin axis that is substantially coaxial with a housing axis. The bobbin is disposable inside a housing and configured to move along the bobbin axis. The substantially planar surface at the end of the bobbin is securable to an acoustic diaphragm. The bobbin includes one or more of (a) legs extending from the outer surface to the substantially planar surface, (b) a wall which extends about substantially all of a perimeter of the planar surface, and (c) a plurality of through holes in the substantially planar surface.

公开(公告)号：US20170118560A1

公开(公告)日：2017-04-27

申请号：US14921541

申请日：2015-10-23

Applicant: BOSE CORPORATION

Inventor： Brian M. Lucas ,  Weidong Zhu ,  Binu K. Oommen ,  Brock N. Jacobites ,  Thomas A. Froeschle ,  Joseph A. Stabile ,  Christopher A. Pare ,  Wit Bushko

IPC: H04R9/06 ,  H04R7/16 ,  F16F1/373 ,  H04R9/02

CPC classification number: H04R9/06 ,  F16F1/3842 ,  F16F1/3863 ,  F16F2228/08 ,  F16F2236/085 ,  H04R7/16 ,  H04R9/025

Abstract: A loudspeaker includes an acoustic diaphragm, an oscillatory force source, a lever coupling the oscillatory force source to the acoustic diaphragm, and a pivot coupled to the lever such that the lever moves in an arcuate path about the pivot when the oscillatory force source applies a force to the lever. The pivot includes at least one torsion bushing. The at least one torsion bushing includes a first member, a second member coupled to the lever and movable relative to the first member, and an elastomeric member coupling the first member to the second member. Either the first member or the second member is coupled to and moves with the lever. An outer surface of the elastomeric member is coupled to the second member via mechanical compression.