Weld-free gratings and method and punch and die for forming same

Details Weld-free gratings and method and punch and die for forming same Weld-free gratings and method and punch and die for forming same

1998-07-09

2000-09-05

Rachuba, M.

Cutting

Processes

83 36, 83 39, 14 73, B26D 100

Patent

active

061126292

ABSTRACT:
A method for forming a grating suitable for bridge decks using a punch and die, the die having a die opening having a generally cross shaped configuration having a generally vertical or first extent having a top and bottom and a generally horizontal or second extent having a first side and a second side, the distance between the top and bottom of the vertical extent being shorter than the distance between the first side and the second side of the horizontal extent, the opening having a first land and a second land substantially opposite to each other, the first land extending from the top of the vertical extent to the second side, the second land extending from the first side to the bottom, the punch having a cross-section configuration to mate with the die opening to punch the web openings in the web.

REFERENCES:
patent: 430315 (1890-06-01), House
patent: 622953 (1899-04-01), John
patent: 1411774 (1922-04-01), Engel
patent: 2128753 (1938-08-01), Leinhard
patent: 2190214 (1940-02-01), Nagin
patent: 2313801 (1943-03-01), Carll
patent: 2645985 (1953-07-01), Beebe et al.
patent: 2834267 (1958-05-01), Beebe
patent: 3260023 (1966-07-01), Nagin
patent: 3408889 (1968-11-01), Murphy
patent: 3496818 (1970-02-01), Porter et al.
patent: 4265156 (1981-05-01), Stubbings
patent: 4327618 (1982-05-01), Menard
patent: 4452025 (1984-06-01), Lew
patent: 4610185 (1986-09-01), France
patent: 4780021 (1988-10-01), Bettigole
patent: 4865486 (1989-09-01), Bettigole
patent: 4905557 (1990-03-01), Adleman
patent: 4928471 (1990-05-01), Bartley
patent: 5142958 (1992-09-01), Nordlin et al.
patent: 5463786 (1995-11-01), Mangone et al.
patent: 5604949 (1997-02-01), Mangone

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