key interlock

key interlock

A mechanism that permits operation, insertion, or removal of a key to a piece of equipment only if certain conditions have been met or prescribed operations have been completed; may be required to meet specified safety conditions and to prevent improper (or unauthorized) operation of the equipment.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
British health and sensor technology group Halma (LON:HLMA) said on Tuesday it had bought US interlocks maker Kirk Key Interlock Company for about USD14.7m (EUR10.2m) in cash.
According to NHTSA, 'The ignition key interlock cable may allow the interlocking cam to fall forward and allow the ignition key to be removed from the ignition switch when the gearshift mechanism is not in the park position.'
said Wednesday it will repair the Fit subcompact, the Stream minivan and seven other models, produced between April 2001 and March 2002, due to malfunctioning key interlock systems.
Other options include key interlock, key operation, spring return, gear-driven operation and padlock compatibility.
Company's trapped key interlock systems ensure a predetermined safety sequence each time hazardous equipment is accessed or operated.
Modifications include an "OFF" position in place of a contact position, increased operating voltages, angled terminals and/or rotor straps, mechanical releases, key interlock provisions.
All series offerings are manufactured entirely of 316 stainless steel with keyways protected by a gasketed dust cover.--Kirk Key Interlock Co., Massillon, Ohio; 800/438-2442; www.kirkkey.com