Apparatus for assembling bell and spigot pipe joints

Details Apparatus for assembling bell and spigot pipe joints Apparatus for assembling bell and spigot pipe joints

1995-05-10

1996-05-28

Arola, Dave W.

Pipe joints or couplings

With assembly means or feature

Guide and support

285 39, 285374, 285382, 285906, F16L 3500

Patent

active

055204198

ABSTRACT:
A method of and rounding devices for inserting an out-of-round pipe spigot into a pipe bell by installing the rounding devices on the open end of the pipe bell. The rounding devices have cam surfaces for engaging the end of the out-of-round spigot and have sufficient strength and stiffness to deform the out-of-round into a substantially circular cross sectional configuration upon application of insertion force between the bell and spigot. The rounding devices may be removed and reused after the bell and spigot joint is assembled.

REFERENCES:
patent: 324154 (1885-08-01), Pare et al.
patent: 820126 (1906-05-01), Phillips
patent: 865498 (1907-09-01), Kenyon
patent: 1065387 (1913-06-01), Ogg
patent: 1762766 (1930-06-01), Garay
patent: 1921978 (1933-08-01), Leary
patent: 1991343 (1935-02-01), Ball
patent: 2310122 (1943-02-01), Scott
patent: 4435894 (1984-03-01), Mousson
patent: 5197768 (1993-03-01), Conner
Kuboto Ltd., "Damaged Pipe Repair Manual", pp. 8-10 (Pub. date unknown, but prior to Dec. 29, 1992).
American Water Works Association, "American National Standard for Rubber Gasket Joints for Ductile Iron Pressure Pipe and Fittings" Jun. 21, 1990.
Stanton and Staveley, "Ductile Iron Pipe Manual", Dimensional Checks on Pipe Spigots and Quality Correction, (two pages) (Publication date unknown, but prior to Dec. 29, 1992).

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