Valve seal retainer with multiple diameter boot base

Details Valve seal retainer with multiple diameter boot base Valve seal retainer with multiple diameter boot base

1984-07-02

1985-03-05

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 5, 277166, 277188R, 277183, 123188P, F16K 4100, F16J 1532

Patent

active

045026963

ABSTRACT:
A valve seal retaining boot has a tubular base with at least two contiguous segments of progressively narrowing diameters. The largest diameter segment is closest to the valve seal, the smallest diameter segment is the furthest from the valve seal. The largest diameter segment can accommodate with an acceptable retention stretch limit a cylinder head exposed shoulder having the largest positive deviation from a nominal diameter. The smallest segment is designed to accommodate with an acceptable retention stretch limit an exposed shoulder with the largest negative deviation from a nominal diameter. Segments of intermediate diameters can be provided to accommodate exposed shoulders with diameters intermediate the maximum positive and negative deviations from the nominal diameter.

REFERENCES:
patent: 2821973 (1958-02-01), Juhman
patent: 3531134 (1970-09-01), Kammeraad
patent: 3599992 (1971-08-01), Kammeraad

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