Tie rod cylinder with gasketless seal

Details Tie rod cylinder with gasketless seal Tie rod cylinder with gasketless seal

1986-05-05

1987-02-17

Hall, George T.

Receptacles

Closures

Having means for securing or retaining closure in its closed...

B65D 4500

Patent

active

046433325

ABSTRACT:
Fluid cylinder of the repairable type having a plurality of tie rod members to retain a tubular member between a pair of end cap members is constructed so that the O-rings or gaskets normally used to seal the tubular member to the end caps can be eliminated. The tubular member is formed of a material such as stainless steel which is harder and has a higher yield strength that the material of the end caps, which is preferably an aluminum alloy. The mating surfaces are machined to be very smooth and flat so that the relatively thin wall of the tube will cause deformation of the end caps within their elastic limit, thus providing a metal to metal seal which permits the parts of the cylinder to be assembled and reassembled without danger of leakage. A surface finish on the mating parts of 32 microinches appears to be quite satisfactory.

REFERENCES:
patent: 3080201 (1963-03-01), Escola
patent: 3141008 (1964-07-01), Flick et al.
patent: 3175725 (1965-03-01), Sampson
patent: 3245708 (1966-04-01), Kooistra

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