Fluid handling – With indicator – register – recorder – alarm or inspection means – Position or extent of motion indicator
Patent
1979-02-02
1981-11-24
Chambers, A. Michael
Fluid handling
With indicator, register, recorder, alarm or inspection means
Position or extent of motion indicator
1376362, 251114, 251294, 74471XY, 116277, F16K 1118, F16K 3502, F16K 3700, G05G 902
Patent
active
043018343
ABSTRACT:
An adjusting mechanism (92) is provided between a valve spool (62) and a valve actuating lever (26) whereby with the lever (26) locked in a selected position, the mechanism (92) is manipulated to move an element (99) carried by the valve spool (62) into alignment with an indicator (110) that has been predetermined to be the selected setting of the valve. With the element (99) aligned with the indicator (110), the mechanism (92) is locked so that the valve spool (62) is in the selected setting when the lever (26) is in the selected position. A lockdown apparatus (70) is provided for use in locking the lever (26) in the selected position while the adjusting mechanism (92) is being manipulated. An overtravel prevention apparatus is also provided whereby as a member (22) approaches its predetermined limit of movement, a linkage system (128,132,136,144,146) is actuated which engages with parts (103) on the cable (58) from the actuating lever (26 ) to the valve spool (62) which overrides the actuating lever (26) and moves the actuating lever (26) and the valve spool (62) to a neutral position, preventing the member (22) from moving beyond its predetermined limit.
REFERENCES:
patent: 828832 (1906-08-01), Warren
patent: 1105090 (1914-07-01), Metzger
patent: 1903695 (1933-04-01), Chobert
patent: 2302158 (1942-11-01), Von Vulpen
patent: 3393579 (1968-07-01), Wolf
patent: 3633436 (1972-01-01), Freiburger
patent: 3757612 (1973-09-01), Schaefer
patent: 4023636 (1977-05-01), Levin
patent: 4235415 (1980-11-01), Heckenkamp
Comer, Jr. Glen S.
Ejchler Henry
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