Valves and valve actuation – Mechanical movement actuator – Lever
Patent
1975-04-24
1977-02-15
Rosenthal, Arnold
Valves and valve actuation
Mechanical movement actuator
Lever
251231, 251326, 138 943, F16K 3312, F16K 332
Patent
active
040079112
ABSTRACT:
A packingless gate valve actuator assembly having a stepped through passage defined by respective half housings formed with passages of different diameter and respective bolt connector flanges disposed in face to face relation with spacer strips interposed between diametrically opposite flange face margins to define a laterally related gate passage, a compressible elastomeric liner sleeve fitted to the passage of greater diameter with its opposite ends protruding axially from the passage ends and the end opposed to the flange face defining the end of the smaller diameter passage formed to span the gate passage and provide a protruding lip sealingly engaging the last mentioned flange face in annular surrounding relation to the smaller diameter passage end, a gate having a leading knife edge slidingly mounted in the gate passage with the lead tip of the knife edge disposed to enter the line of seal and deform the lip into sealing engagement with the opposed face of the knife edge and gate in its reciprocal movement in the gate passage, an actuator lever selectively pivoted upon an extension of one of the spacer strips and pivotally connected to the gate to effect controlled movement of the gate between its open and closed positions.
REFERENCES:
patent: 1037338 (1912-09-01), Scott
patent: 1881367 (1932-10-01), McKesson
patent: 2000494 (1935-05-01), Nordstrom
patent: 2524343 (1950-10-01), Diener
patent: 2669416 (1954-02-01), Hilton
patent: 2885174 (1959-05-01), Setka
patent: 3198484 (1965-08-01), Martindale
Rosenthal Arnold
The J. R. Clarkson Company
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