Title:
COMPOSITE TUBE, MANUFACTURING DEVICE, PROCESS, ROLLER BODY AND USE OF ROLLER BODY
Document Type and Number:
WIPO Patent Application WO/2021/027460
Kind Code:
A1
Abstract:
A composite tube, a manufacturing device, a process, a roller body, and use of a roller body. The composite tube comprises an inner tube body (1) and a stainless steel outer tube (2) wrapped around the inner tube body (1); the tube diameter difference between the inner diameter of the stainless steel outer tube (2) and the outer diameter of the inner tube body (1) is less than or equal to 1 mm, and the roundness tolerance of the outer diameter of the composite tube is not greater than 0.3 mm. The outer wall of the inner tube body (1) and the inner wall of the stainless steel outer tube (2) can be in close contact with each other partially or completely, eliminating deformation that may be brought to the stainless steel outer tube body (2) when in use.
More Like This:
| JP3773156 | WEB GUIDE ROLLER |
Inventors:
GAO YUCHENG (CN)
Application Number:
PCT/CN2020/101611
Publication Date:
February 18, 2021
Filing Date:
July 13, 2020
Export Citation:
Assignee:
SHANDONG GUANGTAI ENVIRONMENTAL TECH COMPANY LIMITED (CN)
International Classes:
B65H27/00; B32B1/08; B32B3/08; B32B15/04; B32B15/18; B32B33/00
Domestic Patent References:
| WO2004103603A1 | 2004-12-02 |
Foreign References:
| CN211141052U | 2020-07-31 | |||
| CN110626848A | 2019-12-31 | |||
| CN110422677A | 2019-11-08 | |||
| CN1621725A | 2005-06-01 | |||
| CN104525615A | 2015-04-22 | |||
| CN1621725A | 2005-06-01 | |||
| CN205839435U | 2016-12-28 | |||
| CN1446645A | 2003-10-08 | |||
| CN103757847A | 2014-04-30 |
Other References:
See also references of EP 4015427A4
Attorney, Agent or Firm:
BEIJING ZHILIN HENGYUAN IP FIRM (CN)
Download PDF:
Previous Patent: BATTERY BOX
Next Patent: TUBE BODY SUPPORT MEMBER, TUBE FOR MAKING ROLLER, ROLLER BODY AND USE OF ROLLER BODY
Next Patent: TUBE BODY SUPPORT MEMBER, TUBE FOR MAKING ROLLER, ROLLER BODY AND USE OF ROLLER BODY