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Patent Searching and Data


Title:
A NO-REGULATION FLOW RESTRICTOR FOR A GAS VALVE OF LIGHTER AND A DEDICATED PROCESSING MOULD
Document Type and Number:
WIPO Patent Application WO/2007/137450
Kind Code:
A1
Abstract:
A no-regulation flow restrictor for a gas valve of lighter and a dedicated processing mould are disclosed. Said no-regulation flow restrictor includes a gas filter film (1) and a seal gasket (2) adhered to one side or two sides of the gas filter film (1). The seal gasket (2) is made of resilient microporous material permeable to air. It features that the gas filter film (1) and the seal gasket (2) are fused integrally together in their edges, and the seal gasket (2) has the same material as the gas filter film (1) or has material fused with the gas filter film (1). The dedicated processing mould includes a concave mould assembly with a punching-shear cavity (7) and an upper mould assembly with a punch head (9). The punch head (9) is larger than the punching-shear cavity (7) in section, and its front end surface is smaller than the section of the punching-shear cavity. The front end surface and side surface of the punch head (9) is transiting from an inclined surface or a cambered surface, where the section is the same as the punching-shear cavity in shape. A resilient layer (11) is provided at the end of the punch head (9), and via the resilient layer (11) a mould pressure is applied on the punch head (9).

Inventors:
HUANG, Ziqiang (12A Yangguang Huayuan, South Feixia RoadWenzhou, Zehjiang 0, 325000, CN)
Application Number:
CN2006/001126
Publication Date:
December 06, 2007
Filing Date:
May 29, 2006
Export Citation:
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Assignee:
HUANG, Fengjing (12A Yangguang Huayuan, South Feixia RoadWenzhou, Zehjiang 0, 325000, CN)
黄逢竞 (中国浙江省温州市飞霞南路阳光花园12A, Zhejiang 0, 325000, CN)
International Classes:
F23Q2/173
Foreign References:
CN1731020A
US4929175A
CN2760418Y
CN2240675Y
CN2594656Y
Attorney, Agent or Firm:
XIAMEN SHINHWA PATENT & TRADEMARK AGENCY CO., LTD. (1/F Taiwan Hotel, Hubin East RoadXiamen, Fujian 4, 361004, CN)
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