Title: Spacer bar mechanism

Abstract: An electronic keyboard is provided with a centrally operable elongated spacer bar that affords a smooth response to depression anywhere along its linear spans, a bail preloadably anchored at various points along the keyboard base being pivotally coupled to the extremities of the spacer bar to effectuate an even load distribution and minimal central drag upon each spacer bar depression, the preloadable anchoring of the bail at the various points along the keyboard base permitting convenient assembly of the spacer bar on the keyboard without the use of tools.

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Inventors: Sims, Jr., Dewey M. (Westland, MI, US)

Application Number: 541790
Filing Date: 1975-01-17
Publication_date: 1977-03-08
Assignee: Burroughs Corporation (Detroit, MI)
Primary Class(es): 400/496 16/267, 341/22, 400/479
Other Classes:
US Patent Ref:

399964	Mar, 1889	Benet	16/171.
2618809	Nov, 1952	Rubinoff	16/172.
2637460	May, 1953	Yates	16/172.
3091357	May, 1963	Weinhart	16/172.
3292761	Dec, 1966	Erpel	197/98.
3338369	Aug, 1967	Rexford	197/98.
3711685	Jan, 1973	Castle	197/98.
3720801	Mar, 1973	Yanaga	197/98.
3771636	Nov, 1973	Kerns	197/82.

Other Refs:
Primary Examiner: Rader, Ralph T.
Assistant Examiner:
Attorney: Tuttle; Robert C. J., Taylor; Ronald L., Fissell, Jr.; Carl