Fluid handling – Combined
Patent
1985-11-21
1987-07-14
Chambers, A. Michael
Fluid handling
Combined
137353, 251250, 200 16C, 200 6168, F16K 3344, H01H 906
Patent
active
046795880
ABSTRACT:
A single rotary shaft connected to a single rotary carriage operates a vacuum selector valve and two rotary electrical switches, in a casing having rear and front components. The valve comprises a valve carriage, slidable along a linear channel in the rear component. A gear rack on the valve carriage meshes with a pinion gear on the rotary carriage. The valve carriage is slidably retained in the valve channel by the switch contact plates of the first rotary switch. Such contact plates have terminal portions retained between the front and rear casing components. The contactors of the two switches face in opposite directions on the rotary carriage and are biased by a single coil spring, insulated from one of the contactors by a cup-shaped insulating member. The contact plates of the second switch are mounted on the front casing component and have terminals extending outside of the rear casing component through slots therein.
REFERENCES:
patent: 3596679 (1971-08-01), Sugden, Jr.
patent: 3637962 (1972-01-01), Fiddler et al.
patent: 3942555 (1976-03-01), Raab et al.
patent: 4054761 (1977-10-01), Raab et al.
patent: 4126153 (1978-11-01), Raab
patent: 4291725 (1981-09-01), Raab et al.
patent: 4305569 (1981-12-01), Raab et al.
Cobb, III Albert R.
Raab Andrew F.
Chambers A. Michael
Indak Manufacturing Corp.
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