B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 35/02 (2006.01) B01D 35/04 (2006.01) F16K 31/40 (2006.01) F16K 51/00 (2006.01)
Patent
CA 2173276
A unitary cup-shaped grid member having a grid of holes in the closed end is inserted in the inlet of a valve and a cup-shaped fine-mesh primary filter screen inserted therein and snap-locked in place. In the event the screen clogs and is removed by the user, the grid provides some back-up or auxiliary course filtering to protect the valve in service after removal of the primary filter screen.
Cooper Robert James
Donner Richard Alan
Mccarty William Raymond
Borden Ladner Gervais Llp
Corporation Eaton
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