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 (CN)
Application Number:
PCT/CN2006/001126
Publication Date:
December 06, 2007
Filing Date:
May 29, 2006
Export Citation:
Assignee:
HUANG FENGJING (CN)
HUANG ZIQIANG (CN)
HUANG ZIQIANG (CN)
International Classes:
F23Q2/173
Foreign References:
CN1731020A | 2006-02-08 | |||
US4929175A | 1990-05-29 | |||
CN2760418Y | 2006-02-22 | |||
CN2240675Y | 1996-11-20 | |||
CN2594656Y | 2003-12-24 |
Attorney, Agent or Firm:
XIAMEN SHINHWA PATENT & TRADEMARK AGENCY CO., LTD. (Hubin East RoadXiamen, Fujian 4, CN)
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