# US 8,150,085 B2 · Reflex loudspeaker structure

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- Number: US 8,150,085 B2
- Document ID: US8150085B2
- Status: Granted
- Kind: B2
- Application number: 12/083,077
- Filed: 2006-10-04
- Published: 2009-10-29
- Granted: 2012-04-03
- Earliest claimed: 2005-10-05
- Assignees: Genelec Oy
- Inventors: Ilpo Martikainen
- Web page: https://patentgrep.com/patent/US8150085B2

## CPC

- H04R 1/2819: {for loudspeaker transducers}
- H04R 1/2826: {for loudspeaker transducers}
- H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K)

## Abstract

The invention relates to a reflex loudspeaker construction (1, 2, 3), which comprises a loudspeaker chamber (30) delimited by the reflex loudspeaker construction (1, 2, 3), a reflex channel (5) connected to the loudspeaker chamber (30), which connects the loudspeaker chamber (30) to the external space of the reflex loudspeaker construction (1, 2, 3), and at least one loudspeaker element (7) connected to the reflex loudspeaker construction (1, 2, 3), which forms part of the structure delimiting the loudspeaker chamber (30). According to the invention, the reflex loudspeaker construction (1, 2, 3) comprises at least two components (2, 3), which can be repeatedly detached at least partly from each other, without dismantling, in order to use the loudspeaker chamber (30) as a transportation space.

## Claims

### Claim 1

A reflex loudspeaker apparatus, comprising:
a loudspeaker chamber;
a reflex channel connected to the loudspeaker chamber, which connects the loudspeaker chamber to an external space of the reflex loudspeaker apparatus; and
at least one loudspeaker element, which forms part of the structure delimiting the loudspeaker chamber,
wherein the reflex loudspeaker apparatus comprises at least two components, which can be repeatedly detached at least partly from each other, without dismantling, in order to use the loudspeaker chamber as a transportation space.

### Claim 2 (depends on 1)

The reflex loudspeaker apparatus according to claim 1, wherein
the loudspeaker apparatus is configured as a briefcase structure,
in an operating state, an inner part of the loudspeaker apparatus acts as a loudspeaker chamber, and
in the transportation state, the inner part acts as a storage and attachment space of auxiliary loudspeakers.

### Claim 3 (depends on 1, 2)

The reflex loudspeaker apparatus according to claim 1 or 2, wherein
the at least two components comprise a cover component and a base component, and
the cover component is hinged to the base component.

### Claim 4 (depends on 1, 2)

The reflex loudspeaker apparatus according to claim 1 or 2, wherein
the at least two components comprise a cover component and a base component, and
the cover component can be connected to the base component by a catch attachment.

### Claim 5 (depends on 1)

The reflex loudspeaker apparatus according to claim 1, wherein the loudspeaker apparatus is sealable for an operating situation.

### Claim 6 (depends on 5)

The reflex loudspeaker apparatus according to claim 5, further comprising:
an element fitted to a handle, which when rotated tightens the seal for the operating situation.

### Claim 7 (depends on 6)

The reflex loudspeaker apparatus according to claim 6, further comprising:
a locking apparatus comprising a spiral groove configured to tighten a pin-like counter-piece.

### Claim 8 (depends on 1)

The loudspeaker apparatus according to claim 1, wherein
the reflex channel is formed as two halves, and
the at least two components include two components each of which contain one of the two halves of the reflex channel.

### Claim 9 (depends on 1)

The loudspeaker apparatus construction according to claim 1, further comprising:
an amplifier; and
a handle,
wherein the amplifier, the at least one loudspeaker element, and the handle are located in the same one of the at least two components.

### Claim 10 (depends on 1)

The reflex loudspeaker apparatus according to claim 1, further comprising:
a handle,
wherein
one of the at least two components is a base component, and
in an operating situation, the handle detaches from the base of the base component (3), to create a free acoustic radiation space for the at least one loudspeaker element.

### Claim 11 (depends on 1)

The reflex loudspeaker apparatus according to claim 1, wherein the apparatus is configured as portable sound-reproduction apparatus.