Metal working – Method of mechanical manufacture – Repairing
Patent
1990-06-11
1992-03-31
Eley, Timothy V.
Metal working
Method of mechanical manufacture
Repairing
2940214, 2940217, 137 15, 137315, B23P 600, F16L 5518
Patent
active
050995650
ABSTRACT:
A damaged hydrant casing which has an integral barrel extending below ground level is repaired without excavation. A support structure defining a horizontal work surface is clamped to the hydrant barrel. A powered groove-forming tool is supported from the work surface with a mechanical spacer and moved about the barrel to form a circumferential groove. A powered cutting tool is then supported from the work surface with another mechanical spacer and moved about the barrel to cut the barrel circumferentially above the groove. An upper defective portion of the hydrant casing is removed and only a stub portion of the barrel remains above ground. A split flange with a frangible inner lip is secured to the stub portion of the barrel with the lip seated in the circumferential groove. Another hydrant casing having a lower complementary flange is then seated on the split flange, and the two flanges are secured to one another with bolts. The support member is then released and removed.
REFERENCES:
patent: 1349062 (1920-08-01), Goldberg
patent: 2018455 (1935-10-01), Lofton
patent: 2282641 (1942-05-01), Corey
patent: 4161958 (1979-07-01), Behle
patent: 4748997 (1988-06-01), Ragsdale
Dungba Vo Peter
Eley Timothy V.
Waraksa Mirek A.
LandOfFree
Method of repair or replacement a hydrant casing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of repair or replacement a hydrant casing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of repair or replacement a hydrant casing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2249649