Fire Check Valve

CN309126790SActive Publication Date: 2025-02-18YANCHENG HONGKUN OXYGEN MANUFACTURING MACHINE VALVE FACTORY
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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

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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.
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