IP Library Granted Patent US 8,343,313
Granted Patent B2
US 8,343,313 · App. 12/162,541 · Granted Jan 1, 2013

Plant for production of paper-made part for speaker, paper-made part for speaker produced thereby, and speaker utilizing the same

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,343,313
App. No.
12/162,541
Granted
Jan 1, 2013
Kind
B2
Abstract

The production equipment of paper-made components for loudspeakers includes a mixing device, a fining device, a paper-making device, and a shape processing device. The mixing device mixes material of a paper-made component for a loudspeaker into liquid to generate mixed liquid. The fining device includes a pressure unit, an orifice, and an inner wall. The pressure unit applies pressure on the mixed liquid to cause the mixed liquid to pass through the orifice, and the mixed liquid collides against the inner wall to cause the fining device to generate fined material. The paper-making device paper-makes the fined material to generate a paper-made component. The shape processing device processes the shape of the paper-made component. This structure provides production equipment of the paper-made components for loudspeakers, which prepares material for paper-making in a short time and reduces producing time.

Claims (15)

1. Production equipment of a paper-made component for a loudspeaker, comprising:

a blasting device splitting fibrous material for the paper-made component by steam blasting thereby generating split material;

a beating device beating and mixing the split material into liquid to generate mixed liquid;

a fining device including a pressure unit, an orifice, and an inner wall,

wherein the pressure unit applies pressure on the mixed liquid, so that the mixed liquid passes through the orifice, and

the mixed liquid collides against the inner wall, thereby generating fined material;

a paper-making device paper-making the fined material and generating a paper-made component; and

a shape processing device processing a shape of the paper-made component.

2. The production equipment of the paper-made component for the loudspeaker of claim 1 , wherein the fined material includes bamboo fiber.

3. The production equipment of the paper-made component for the loudspeaker of claim 1 , wherein the generating of the fined material by the fining device is repeated.

4. The production equipment of the paper-made component for the loudspeaker of claim 1 , wherein the pressure applied by the pressure unit on the mixed liquid is 10 MPa or higher.

5. The production equipment of the paper-made component for the loudspeaker of claim 1 , wherein the liquid includes alcohol.

6. The production equipment of the paper-made component for the loudspeaker of claim 1 , wherein the blasting device further includes alkali treatment.

7. The production equipment of the paper-made component for the loudspeaker of claim 1 , wherein the beating device includes a microfibrillating beating device.

8. The production equipment of the paper-made component for the loudspeaker of claim 1 , wherein the fining device is a high-pressure homogenizer.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 28, 2024
From: PANASONIC HOLDINGS CORPORATION
To: PANASONIC AUTOMOTIVE SYSTEMS CO., LTD.
Reel/Frame 066957/0984 →
CHANGE OF NAME Recorded Feb 21, 2024
From: PANASONIC CORPORATION
To: PANASONIC HOLDINGS CORPORATION
Reel/Frame 066644/0558 →
CHANGE OF NAME Recorded Mar 6, 2009
From: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
To: PANASONIC CORPORATION
Reel/Frame 022363/0306 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 5, 2008
From: MIMURA, KAZUYOSHI; AJIKI, KENICHI; MIZONE, SHINYA; SUMIYAMA, MASAHIDE; FUJII, TORU
To: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Reel/Frame 021486/0689 →