Patent US5172846A successfully refreshed from Google Patents.
US5172846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Butting device for joining running steel sheets
Assignee: Mitsubishi Heavy Industries Ltd
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Filing: 1991-12-20
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Granted: 1992-12-22
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Expires: 2011-12-20
Abstract
Abstract The device of this invention is to prevent the buckling of steel sheets and positional discrepancy between steel sheets by grasping and butting the front and rear ends of sheets by means of clamping means on a joining device carrier. For this purpose, a pair of joining device carrier 3 are moved on rails 8 mounted at both sides of rolls 9 for conveying steel. The rear end of the preceding steel sheet 1 and the front end of the following steel sheet 2 are grasped by the clamping means 4 and 5 on the joining device carrier, respectively. The clamping means 5 is moved close to the clamping means 4 by using a movable frame so that the steel sheets 1, 2 are butted together.
Inventors
- 👤 Kanji Hayashi
- 👤 Ryuichi Ozono
- 👤 Tohru Takeguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:01
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/025; B21; B21B; B21B15/00; B21B15/0085; B23K11/00; B23K11/08; B23K11/087; B23K13/00; B23K13/01; B23K13/015; B23K37/00; B23K37/04; B23K37/0408
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
118 words
A butting device for joining running steel sheets comprising a sliding member disposed at each side of a conveying means for conveying a plurality of steel sheets continuously, a pair of joining device carriers which are mounted on said sliding member to travel substantially in parallel to the direction in which said steel sheets are conveyed, two sets of clamping means which are mounted on said joining device carrier to clamp said steel sheets, and a moving means which is mounted on said joining device carrier to move one set of said two sets of clamping means substantially in parallel to the direction in which said steel sheets are conveyed so that adjacent steel sheets are butted together.
Claim 2
Dependent Claim
118 words
A butting device for joining running steel sheets comprising a sliding member disposed at each side of a conveying means for conveying a plurality of steel sheets continuously, a pair of joining device carriers which are mounted on said sliding member to travel substantially in parallel to the direction in which said steel sheets are conveyed, two sets of clamping means which are mounted on said joining device carrier to clamp said steel sheets, and a moving means which is mounted on said joining device carrier to move one set of said two sets of clamping means substantially in parallel to the direction in which said steel sheets are conveyed so that adjacent steel sheets are butted together.
Claim 3
Dependent Claim
24 words
The butting device according to claim 1 wherein said clamping means are bar clamping means for pressing and grasping steel sheets from both sides.
Claim 4
Dependent Claim
20 words
The butting device according to claim 1 wherein said clamping means are bar clamping means which grasp steel sheets vertically.
Claim 5
Dependent Claim
20 words
The butting device according to claim 1 wherein said clamping means consist of a bar clamping means and an electrode.
Claim 6
Dependent Claim
20 words
The butting device according to claim 1 wherein said clamping means further comprise an arc welding or induction heating means.
References Cited (Backward Citations)
DE6823C
Cited
US3632035A
Cited
GB1333652A
Cited
EP0168837A2
Cited
JPS6221490A
Cited
US4854493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-12-22 | 1996-06-22 | 1996-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-22 | 2000-06-22 | 2000-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-22 | 2004-06-22 | 2004-12-22 | $7700.00 | Window Closed / Lapsed |