Metal deforming – By deflecting successively-presented portions of work during... – By use of work-contacting wiper and moving – work-holding form
Patent
1984-06-29
1985-10-15
Crane, Daniel C.
Metal deforming
By deflecting successively-presented portions of work during...
By use of work-contacting wiper and moving, work-holding form
72155, 72159, 72482, 29125, B21D 7024
Patent
active
045466327
ABSTRACT:
A portable electric driven conduit bender which accommodates rigid, IMC and thinwall conduit of various sizes in a single setup includes a rotatable, cone-shaped bending shoe, and a roller assembly for supporting conduit during bending. The bending shoe has a pair of arcuate-shaped die portions positioned diametrically opposite one another for shaping rigid and IMC conduit, and thinwall conduit, respectively, and each die portion has a plurality of bending grooves formed therein for accommodating various conduit diameter sizes. The roller assembly includes a roller unit for larger diameter conduit that has a split forming roller and a solid backup roller located side-by-side which cradle the conduit during the bending operation. One of the halves of the split roller is adjustable in its axial direction between a closed position for supporting thinwall conduit and a separated position for supporting rigid conduit. A lever arm is used to rotate an eccentric which moves the roller unit into an operation position for bending and an inoperative position for inserting or removing conduit. The lever includes a roller handle which acts as a backup roller for bending smaller diameter conduit.
REFERENCES:
patent: 493390 (1893-03-01), Stirling
patent: 682671 (1901-09-01), Condon
patent: 1135875 (1915-04-01), Brinkman
patent: 1139434 (1915-05-01), Moore
patent: 1309849 (1919-07-01), Henderson
patent: 1714083 (1929-05-01), Frank
patent: 1899280 (1933-02-01), Lidseen
patent: 1899281 (1933-02-01), Lidseen
patent: 1930999 (1933-10-01), Gaskell
patent: 3147792 (1964-09-01), Hautau
patent: 3299681 (1967-01-01), Hautau
patent: 3417590 (1968-12-01), Ensley
patent: 3584492 (1971-06-01), Dodge et al.
patent: 3621697 (1971-11-01), Martinko
patent: 3921424 (1975-11-01), Pearson
patent: 3949584 (1976-04-01), Pearson et al.
patent: 4025749 (1977-05-01), Spurr et al.
patent: 4249407 (1981-02-01), Fogleman
Valentin Ingo
Van Den Kieboom Jan M.
Applied Power Inc.
Crane Daniel C.
LandOfFree
Portable conduit bending apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Portable conduit bending apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable conduit bending apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2430858