Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1982-04-26
1984-05-29
Moon, Charlie T.
Metal working
Method of mechanical manufacture
Assembling or joining
29523, B21D 3900, B23P 1100
Patent
active
044506180
ABSTRACT:
A tube fitting assembly is disclosed wherein a ductile metal tube is forced into first and second orifices within a fitting. The tube is closely received within the first orifice and the second orifice is larger so that the axial force on the tube axially contracts the tube to form a radially expanded bead on the tube substantially filling the second orifice. This establishes a fluid tight seal between the tube and the fitting and also retains the tube in the fitting. An annular deformable seal member is also provided between an outer surface of the tube and an inner surface of the fitting and this seal may be a rubber-like O-ring or a composition material which is more yieldable than the material of the tube and fitting, may be set up from a liquid or plastic sealant material, or may be a deformable wall of the fitting. The force used to axially contract and radially expand portions of the tube is also utilized to compress the deformable seal between an outer surface of the tube and an inner surface of the fitting to make doubly sure of a good fluid-tight seal. The tube fitting assembly is thus able to withstand higher pressures, suddenly applied pressures, corrosive fluids, and extreme and rapid changes in temperature, with only a negligible number of failures of the assemblies.
REFERENCES:
patent: 1533886 (1925-04-01), Mueller
patent: 1644154 (1927-10-01), Schriner
patent: 1674562 (1928-06-01), Mueller et al.
patent: 1802538 (1931-04-01), Rych
patent: 2434080 (1948-01-01), Rosa
patent: 2450581 (1948-10-01), Couty
patent: 2477676 (1949-08-01), Woodling
patent: 2545930 (1951-03-01), Richardson
patent: 2685461 (1954-08-01), Mueller
patent: 3092404 (1963-06-01), MacWilliam
patent: 3208136 (1965-09-01), Joslin
patent: 3778090 (1973-12-01), Tobin
patent: 3787945 (1974-01-01), Pasek et al.
patent: 3817562 (1974-06-01), Cook et al.
patent: 3940168 (1976-02-01), Balon
patent: 3977710 (1976-08-01), Ridenour
patent: 4099323 (1976-12-01), Bouvier
LandOfFree
Tube fitting assembly method with deformable seal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tube fitting assembly method with deformable seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tube fitting assembly method with deformable seal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1391207