Composite valving rod scraper device and cartridge

Details Composite valving rod scraper device and cartridge Composite valving rod scraper device and cartridge

1990-02-26

1991-08-20

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

With cleaning means, drip collecting, waste disposal or soil...

Nozzle cleaner, flusher or drainer

239120, 239123, B05B 1502

Patent

active

050407287

ABSTRACT:
A composite valving rod is provided for use in a foam dispensing apparatus having a low friction material sleeve portion that is retained by scraping surfaces on opposing ends which both maintain the physical dimensions of the plastic sleeve and serve as scraper when drawn through the bore of the foam dispensing cartridge. The cartridge is non-resilient and has at least one elongated groove therein to receive the scraped residual foam.

REFERENCES:
patent: 2890836 (1959-06-01), Gusmer et al.
patent: 3144210 (1964-08-01), Levy
patent: 3334648 (1967-08-01), Probst
patent: 3687370 (1972-08-01), Sperry
patent: 3786990 (1974-01-01), Hagfors
patent: 3876145 (1975-04-01), Gusmer et al.
patent: 3945569 (1976-03-01), Sperry
patent: 4003501 (1977-01-01), Ramazotti et al.
patent: 4377256 (1983-03-01), Commette et al.
patent: 4427153 (1984-01-01), Schaefer
patent: 4523696 (1985-06-01), Commette et al.

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