US3837061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for positioning a flange
Assignee: Mitsui Engineering and Shipbuilding Co Ltd
•
Filing: 1973-05-24
•
Granted: 1974-09-24
•
Expires: 1993-05-24
Abstract
Abstract Apparatus for positioning a bolt hole of a flange to be welded to one end of a pipe relatively to another flange at the other end of the pipe comprising means for supporting and rotating the flange, a pin adapted to be inserted into one of the bolt holes of the flange, means for detecting the inserted pin in rotation of the flange, and means for stopping the rotation of the flange in response to said detecting of pin insertion, and the flange being further rotated an angle if necessary.
Inventors
- 👤 Y Saito
- 👤 K Hirose
- 👤 K Shiozawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:01
CPC Classifications
B; B23; B23K; B23K37/00; B23K37/04; B23K37/053; B23K37/0536; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53039; Y10T29/53061; Y10T29/53978
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
Apparatus for positioning a flange having one or more bolt holes therein comprising means for rotatably supporting a flange, means for rotating the flange, a spring biased pin to engage with one of the bolt holes of the flange, a supporting member for the pin, means for moving the supporting member to a position where the pin can be inserted into a bolt holes of the flange, a switch adapted to be actuated by the inserted pin, and means for stopping said rotating means by the actuation of said switch.
Claim 2
Dependent Claim
90 words
Apparatus for positioning a flange having one or more bolt holes therein comprising means for rotatably supporting a flange, means for rotating the flange, a spring biased pin to engage with one of the bolt holes of the flange, a supporting member for the pin, means for moving the supporting member to a position where the pin can be inserted into a bolt holes of the flange, a switch adapted to be actuated by the inserted pin, and means for stopping said rotating means by the actuation of said switch.
References Cited (Backward Citations)
US3739451A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |