Roll top backpack with speaker device
US11425978B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2019 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Mar 4, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/023
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A roll top backpack with a waterproof speaker device comprises a speaker device and a roll top backpack, wherein the roll top backpack is provided with a speaker device placement hole, the speaker device is arranged in the speaker device placement hole, and the speaker device is sealed with the speaker device placement hole; due to the fact that the roll top backpack is made of waterproof materials and the speaker device is sealed with the speaker device placement hole, the inner part and the outer part can be waterproof when the whole roll top backpack is rolled up, moisture cannot permeate into the roll top backpack through the speaker device, and cannot permeate out through the speaker device from inside of the backpack, so that the roll top backpack can be used in various environments of outdoor hiking, camping or water sports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.