Method and apparatus for bending pipe to short radh with minimum thinning of the outer wall thickness at the bend
United States Patent 2996100
US Patent References:
/0652808.html
- - 0652808
/1013839.html
- - 1013839
/1324940.html
- - 1324940
Pipe bending machine
- - 1847200
Method of making pipe bends
- - 1975045
/0652808.html
- - 0652808
/1013839.html
- - 1013839
/1324940.html
- - 1324940
Pipe bending machine
- - 1847200
Method of making pipe bends
- - 1975045
Inventors:
Newhall, Welrose L.
Floyd Jr., Samuel B.
Floyd Jr., Samuel B.
Publication Date:
08/15/1961
View Patent Images:
Export Citation:
Assignee:
DRAVO CORP
Primary Class:
Other Classes:
72/459, 72/388, 72/364, 72/466, 72/159
International Classes:
B21D9/07; B21D9/00
US Patent References:
Foreign References:
| GB190702153A | ||||
| DE380094C | ||||
| GB328868A | ||||
| DE658010C | ||||
| GB545454A | ||||
| DE729216C | ||||
| GB638150A |