摘要:
A seal consists of an annular thermoplastic body having a relatively thinner annular base and a relatively thicker, compressible annular bead. The annular body has a shape that corresponds to a mounting surface of a loudspeaker. A surface of a rim of a loudspeaker basket is placed in contact with a mold to form a substantially annular cavity, a melted thermoplastic material is injected at low-pressure into the cavity to form a seal adhered to the surface.
摘要:
An earbud (10) for carrying sound from a source (16) to a person's ear canal, includes a soft foam body (20) and a sleeve (26) of stiffer material lying within the body. The body is molded around the sleeve and is chernically bonded to the sleeve without an adhesive between them. The earbud is molded around the sleeve by placing the sleeve on a mandrel pin (42) within a mold cavity (32), placing foamable material in the mold and closing the mold. The mold has shoulders with one mold shoulder (52) that abuts one end (46) of the sleeve and another mold shoulder (60) that lies within 0.1 millimeter of the other sleeve end (62), to prevent foaming material from leaking into the space (64) between the mandrel pin and the sleeve passage.
摘要:
The present invention relates to an electro-acoustic communications unit (20) and a portable electronic device including such an electro-acoustic communications unit. The electro-acoustic communications unit includes an acoustic driver (22), which when operated emits acoustic waves in two directions, and a hermetically sealed container (24) attached to the acoustic driver and comprising a gas (P1) other than air, which gas transports acoustic waves generated by the acoustic driver.
摘要:
The invention includes a method of joining edges of adjacent honeycomb core panel sections. In one embodiment, the method includes forming a first edge along a first cellular core panel section. The first edge includes a first plurality of edge cell walls along the first edge. The method further includes forming a second edge along a second cellular core panel section, wherein the second edge includes a second plurality of edge cell walls along the second edge. The first edge is positioned proximate to the second edge. At least a portion of at least one of the first plurality of edge cell walls is mechanically interlocked with at least a portion of at least one of the second plurality of edge cell walls to form a joint therebetween. The invention also includes a composite structure at least partially produced by such a method.
摘要:
This invention relates to a system (100) for adapting a hearing aid to a user and comprising means for generating an image (102, 120) of said user's ear together with a model of said hearing aid, means for generating a mesh (112) based on said image, means for calculating acoustic response (110) to a simulated acoustic signal in said mesh, and means for identifying optimal position of microphone (114) of said hearing aid in-situ from said acoustic response.
摘要:
The present disclosure involves a method and apparatus for attaching two electrical dies by wire bonding and then encasing the assembly in a protective casting that works by arranging two dies into a fixture conducive to wire bonding. Doped epoxy may be immediately dispensed over the assembly to form a near-net-shape protective cover, or Drive Can.