Title:
METHOD AND APPARATUS FOR FASTENING STEEL FRAMING BY CRIMPING
Document Type and Number:
WIPO Patent Application WO2003000466
Kind Code:
A3
Abstract:
A punch (20) having wings (30) is driven through framing members (12, 14) and then rotated. Rotation of the punch (20) causes the wings (30) to crimp the framing members (12, 14) together. An angular crimping technique where piercing members (120) are driven through framing members (12, 14) in at least two different directions to crimp the framing members together (12, 14). A fastenerless cinching tool (220) pierces adjacent framing members (12, 14) and crimps the framing members (12, 14) together.
Inventors:
BERRY ROBERT A (US)
WHEELER THOMAS J (US)
JUDGE ALFRED H (US)
RUDOLPH SCOTT (US)
GEHRET ROBERT (US)
WHEELER THOMAS J (US)
JUDGE ALFRED H (US)
RUDOLPH SCOTT (US)
GEHRET ROBERT (US)
Application Number:
PCT/US2002/019757
Publication Date:
May 01, 2003
Filing Date:
June 21, 2002
Export Citation:
Assignee:
BLACK & DECKER INC (US)
BERRY ROBERT A (US)
WHEELER THOMAS J (US)
JUDGE ALFRED H (US)
RUDOLPH SCOTT (US)
GEHRET ROBERT (US)
BERRY ROBERT A (US)
WHEELER THOMAS J (US)
JUDGE ALFRED H (US)
RUDOLPH SCOTT (US)
GEHRET ROBERT (US)
International Classes:
B21D39/03; (IPC1-7): B21D39/03
Foreign References:
| US3722280A | 1973-03-27 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 009, no. 046 (M - 360) 27 February 1985 (1985-02-27)
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