Title:
壁開口部中で拡張可能な管状の金属継手および設置の方法
Document Type and Number:
Japanese Patent JP4819678
Kind Code:
B2
Abstract:
A fitting (58) is inserted into an opening (56) in a wall (50). The fitting (58) includes a ring portion (64) where it extends through the opening (56). It also includes one or two end portions (66, 68) that extend axially outwardly from the ring portion (64). The ring portion (64) has an inside diameter (76) that is smaller than the inside diameters of the end portion or portions (66, 68). The fitting (58) is positioned within the wall opening (56). Then, an expansion tool is moved through the interior of fitting (58) for the purpose of expanding the ring portion (64). The ring portion (64) is expanded to such an extent that it makes a tight fit with the opening (56). Also, the degree of expansion may result in a cold working of the wall material surrounding the opening (56). The expansion tooling only expands the ring portion (64) and does not exert a substantial expanding force on the end portions (66, 68).
Inventors:
Poast, Tom Gee.
Madang, Dean Sea.
Weiss, Mark Earl.
Madang, Dean Sea.
Weiss, Mark Earl.
Application Number:
JP2006521989A
Publication Date:
November 24, 2011
Filing Date:
July 27, 2004
Export Citation:
Assignee:
Fatigue Technology, Inc.
International Classes:
F16L5/02; B64C1/00; F16B9/00
Domestic Patent References:
| JPS5088619A | 1975-07-16 | |||
| JP2001177964A | 2001-06-29 | |||
| JPH10274366A | 1998-10-13 |
Foreign References:
| US4249786A | 1981-02-10 |
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita