A reinforced tubular seal

Details A reinforced tubular seal A reinforced tubular seal

1991-01-07

1992-05-19

Shaver, Kevin P.

Dispensing

With packing-type seal for outlet

222559, 251214, 2513351, 277 62, 277165, F16K 4100

Patent

active

051140551

ABSTRACT:
A dispensing nozzle for a liquid composition having a needle valve and a reinforced tubular seal. The seal has an upper disc-like portion which is secured in place and a lower tubular extension. The tubular extension has an internal tapered bore such that its lower end is narrower than its upper end. The lower end of the bore grips the outer surface of the needle valve and stretches and contracts with its movement. The inner bore of the seal above the lower end is held clear of the needle valve member by a helical spring.

REFERENCES:
patent: 2964246 (1960-12-01), Alholm et al.
patent: 3976392 (1976-08-01), Bolin
patent: 4359204 (1982-11-01), Williams
patent: 4798314 (1989-01-01), Worth et al.

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