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On Off Machine Lockout System Dead Key Disclosure Number: IPCOM000052933D
Original Publication Date: 1981-Aug-01
Included in the Prior Art Database: 2005-Feb-12

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Related People

Kindler, T Lloyd, ER Ratliff, OL Sevy, DR [+details]


With a certain type of keyboard, it is desirable upon the turning off o the typewriter to establish certain mechanical lockouts to prevent accidental jamming of the keyboard. It is also desirable to be able to effect dead key operation and clearing of jammed keyboards by the operator. Clearance of jammed keyboards is essential to reduce service calls if the keyboard is inadvertently locked up during a time period when the machine is on.