Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1976-12-03
1977-12-27
Moon, Charlie T.
Metal working
Method of mechanical manufacture
Assembling or joining
29525, 285 55, 285374, B23P 300, B23P 2500
Patent
active
040646190
ABSTRACT:
Mechanical pipe joints of the pin and bell variety, and methods of forming same, wherein the ends are pre-formed so as to permit a controlled interference fit upon joining and preferably provide a double seal against both internal and external pressure, the joints being particularly adapted for field-grade materials, aluminum members, and internally and externally coated members and being readily disengagable and re-formable without producing galling.
REFERENCES:
patent: 2273154 (1942-02-01), Stromsoe
patent: 2398788 (1946-04-01), Hedrick
patent: 2741498 (1956-04-01), Elliott
patent: 3210102 (1965-10-01), Joslin
patent: 3343252 (1967-09-01), Reesor
patent: 3466738 (1969-09-01), Mount
patent: 3476413 (1969-11-01), Coberly et al.
Echols Marvin C.
Gruller David L.
Moon Charlie T.
Zap-Lok Systems International, Inc.
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