Particle measuring fluid cell having non-corrodible shims

Details Particle measuring fluid cell having non-corrodible shims Particle measuring fluid cell having non-corrodible shims

1989-05-30

1990-12-25

McGraw, Vincent P.

Optics: measuring and testing

Sample, specimen, or standard holder or support

Fluid containers

356338, G01N 110

Patent

active

049798227

ABSTRACT:
A shim for use in defining a fluid passage in a particle detecting fluid cell has a base portion of metal and head portion, defining the fluid passage, which haws a metal core and a covering which is non-corrodible by water and acid. The sides of the covering and the base portion define continuous flat surfaces which are sandwiched between plates defining the other boundaries of the flow passage. The coverings form a fluid tight seal with the plates and the base portions of the shims bear the compressive forces exerted on the shims by the plates.

REFERENCES:
patent: 3805187 (1974-04-01), Lempicki et al.
patent: 4260258 (1981-04-01), Rose et al.
patent: 4844611 (1989-07-01), Imahasha et al.

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