Fire Check Valve
CN309126790SActive Publication Date: 2025-02-18YANCHENG HONGKUN OXYGEN MANUFACTURING MACHINE VALVE FACTORY
View PDF 0 Cites 0 Cited by
Patent Information
- Application Number
- CN202430431382.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2039-07-11
Smart Images

Figure 000007_ABST
Abstract
1. The name of this design product: Fireproof check valve. 2. Purpose of the product of this design: It is mainly used to be installed on the smoke (gas) exhaust duct in the kitchen or bathroom of a residence, as a connecting component between the range hood or exhaust fan and the smoke (gas) exhaust duct, so as to play a role in fire prevention and backflow prevention. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the key points of the design: Design 1 Stereoscopic drawing 1. 5. Designate Design 1 as the base design.
Need to check novelty before this filing date? Find Prior Art