Central vacuum system wall valve

Details Central vacuum system wall valve Central vacuum system wall valve

1990-11-26

1992-05-12

Chambers, A. Michael

Fluid handling

With casing, support, protector or static constructional...

Static constructional installations

285159, F16L 500

Patent

active

051118416

ABSTRACT:
A central vacuum system wall valve is described which includes a valve cap capable of being pivotally cammed to open position by its interaction with the roomside hose as this hose is moved to inserted position within the wall valve.

REFERENCES:
patent: 3036170 (1962-05-01), Forney
patent: 3036814 (1962-05-01), Stevens
patent: 3076068 (1963-01-01), Racklyeft
patent: 3088484 (1963-05-01), Marsh
patent: 3335744 (1967-08-01), Hanford
patent: 3468334 (1969-09-01), Hamrick
patent: 3565103 (1971-02-01), Maesick
patent: 3754564 (1973-08-01), Naumberg
patent: 4336427 (1982-06-01), Lindsay

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