Title:
SECONDARY LEAKAGE-PROOF UMBRELLAS
Document Type and Number:
WIPO Patent Application WO/2019/095242
Kind Code:
A1
Abstract:
Secondary leakage-proof umbrellas. The problem of the leakage at the seams of adjacent triangular pieces of an umbrella fabric is resolved by using secondary leakage-proof improvement measures. According to different improvement measures, secondary leakage-proof umbrellas are classified to two types: a secondary leakage-proof umbrella using a protective pipe and a secondary leakage-proof double-layer umbrella using a rain-proof umbrella fabric having independent inner and outer layers, wherein the protective pipe has the effect of preventing the leakage occurring at the seams of adjacent triangular pieces of the umbrella fabric, and the inner layer of the double-layer umbrella fabric has the effect of preventing the leakage occurring at the seams of adjacent triangular pieces of the outer-layer umbrella fabric.
Inventors:
TAN GONGFA (CN)
Application Number:
PCT/CN2017/111471
Publication Date:
May 23, 2019
Filing Date:
November 17, 2017
Export Citation:
Assignee:
TAN GONGFA (CN)
International Classes:
A45B25/18; A45B25/28
Foreign References:
| CN105615180A | 2016-06-01 | |||
| CN103653617A | 2014-03-26 | |||
| CN203369489U | 2014-01-01 | |||
| CN201585530U | 2010-09-22 | |||
| US7654274B1 | 2010-02-02 |
Attorney, Agent or Firm:
SHENZHEN HUIZHENG INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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