Method & apparatus for metering flow of a two-component dispensi

Details Method & apparatus for metering flow of a two-component dispensi Method & apparatus for metering flow of a two-component dispensi

1992-09-10

1994-07-26

Bollinger, David H.

Dispensing

Processes of dispensing

222 54, 222 55, 222 63, 222135, 222145, 2221462, 2221465, B67D 500

Patent

active

053321251

ABSTRACT:
A method and apparatus for mixing and dispensing two different polymeric materials which react chemically with one another when combined by supplying each material to a common dispenser where the materials are mixed and dispensed, which method and apparatus is operative to maintain substantially steady state flow pressures of the materials at the inlets to the dispenser when flow is terminated such that upon restarting of the flow, the steady state volumetric ratio of materials is immediately reestablished and maintained. The method and apparatus includes two metering pumps for individually supplying the liquid materials to the dispenser and means for varying the speeds of the pumps in response to changes in temperature of the materials so as to maintain a fixed mass ratio of the materials to the dispenser.

REFERENCES:
patent: 3786990 (1974-01-01), Hagfors
patent: 3964645 (1976-06-01), Scholl
patent: 4019653 (1977-04-01), Scherer et al.
patent: 4073409 (1978-02-01), Gardner et al.
patent: 4200207 (1980-04-01), Akers et al.
patent: 4341327 (1982-07-01), Zeitz
patent: 4493286 (1985-01-01), Carson
patent: 4522504 (1985-06-01), Greverath
patent: 4548652 (1985-10-01), Kelly et al.
patent: 4703894 (1987-11-01), Fukuta et al.
patent: 4850514 (1989-07-01), Scholl et al.
patent: 5005765 (1991-04-01), Kistner
patent: 5162121 (1992-11-01), Kawaguchi et al.
369 Plastics Engineering: pp. 33-35, Machinery, Nov. 1983: "Exacting RIM process controls help yield higher-quality plastic parts".
"Reactive Hot Melt Adhesives Developed By H. B. Fuller Company", 1 p. Newsletter, Jun. 21, 1990.
An excerpt from Chemical Marketing Reporter, Aug. 27, 1990, SR 19.

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