Title:
合成樹脂製遮断弁の製作方法
Document Type and Number:
Japanese Patent JP4901003
Kind Code:
B2
Abstract:
External shape of the insert (6) and adjacent internal form of the casing (1) are pressure injection molded. Plastic initially used to mold the insert is then injected, to weld together molding and insert. The ball (3), bearing rings (4), ring seals (5), bearing bush (8) and inlay are mounted together with the molded inner section. The mounted internal section is injected with plastic, forming a welded bond between them. An Independent claim is included for the corresponding valve. Preferred features: An adhesion copolymer thermoplastic forms the molding. The bond between inner section and casing (outer section) is at least partially materially-interlocking. There are penetrations (6a) in the insert (6) and molding, providing additional anchoring points for interlocked bonding.
Inventors:
Tappe michael ve
Application Number:
JP2000577433A
Publication Date:
March 21, 2012
Filing Date:
October 20, 1999
Export Citation:
Assignee:
Alois Gruber Gesellschaft Mito Beschlenktel Haftung
International Classes:
B29D23/00; F16L29/00; B29C45/14; F16K5/06; F16K27/00; F16K27/06
Domestic Patent References:
| JP62115581U | ||||
| JP2076980A | ||||
| JP10038116A | ||||
| JP9060739A |
Foreign References:
| EP0575643A1 |
Attorney, Agent or Firm:
Mitsufumi Esaki
Blacksmith
Kiyota Eisho
Blacksmith
Kiyota Eisho