Header pallet

Static molds – Forming product having joint or coupling – Lapped interfitted facing – alternating reversing identical...

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Details

249102, 425183, B28B 2176

Patent

active

052518671

ABSTRACT:
A header pallet for the manufacture of the spigot of a concrete pipe to receive a sealing gasket during assembly of a pipe line including an outer header ring having an end leg portion and a side leg portion to cooperatively form a substantially L-shaped profile wherein the intersection of the inner surface of the end leg portion and the inner surface of the side leg portion are contoured to form a concave surface and a shoulder is formed on the inner surface of the side leg portion in spaced relationship relative to the concave surface, a removable compressible intermediate ring having a substantially arcuate profile including an outer convex surface, and a removable inner snap ring having a substantially rectilinear profile such that the removable inner snap ring is placed to engage the shoulder in spaced relationship relative to the end leg portion and the removable compressible intermediate ring is press fitted between the removable inner snap ring and the end leg portion with the outer convex surface thereof mating with the concave surface to form on the spigot of the concrete pipe.

REFERENCES:
patent: 2602469 (1952-07-01), Whiting
patent: 2929124 (1960-03-01), James
patent: 3922133 (1975-11-01), Crawford et al.
patent: 4014739 (1977-03-01), Granberg
patent: 4522669 (1985-06-01), Nordin et al.
patent: 4562032 (1985-12-01), Gaudreau
patent: 5082614 (1992-01-01), Hartmann et al.

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