Torque limited drive for manual valves

Patent · Sun Jan 01 00:00:00 EST 1989

OSTI ID:875233

Elliott, Philip G. ^[1]; Underwood, Daniel E. ^[2]

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1. Metropolis, IL
2. Paducah, KY

The present invention is directed to a torque-limiting handwheel device for preventing manual valves from being damaged due to the application of excessive torque during the opening or closing operation of the valves. Torque can only be applied when ridges in the handwheel assembly engage in channels machined in the face of the baseplate. The amount of torque required for disengagement of the ridges from the channels is determined by the force exerted by various Bellville springs and the inclination of the side faces of the channels.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-84OR21400
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): H000636
• Application Number: 07/248224
• OSTI ID: 875233
• Resource Relation: Patent File Date: 1988 Sep 15
• Country of Publication: United States
• Language: English

Related Subjects

statutory invention registration
torque
limited
drive
manual
valves
directed
torque-limiting
handwheel
device
preventing
damaged
due
application
excessive
closing
operation
applied
ridges
assembly
engage
channels
machined
baseplate
amount
required
disengagement
determined
force
exerted
various
bellville
springs
inclination
wheel assembly
force exerted
closing operation
manual valves
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