Recorders – Plural-function recorder – distinguishable recordings – Plural markers and single record receiver
Patent
1978-11-29
1981-12-22
Miller, Jr., George H.
Recorders
Plural-function recorder, distinguishable recordings
Plural markers and single record receiver
346139R, G01D 928, G01D 1516
Patent
active
043074065
ABSTRACT:
Methods and apparatus for recording information with a reciprocating stylus assembly provide a mass which preferably corresponds to the mass of the stylus assembly. The stylus assembly and the provided mass are jointly reciprocated in phase opposition to each other, whereby stylus assembly vibrations are practically eliminated and the recording system is dynamically balanced.
REFERENCES:
patent: 3369250 (1968-02-01), Gifft
patent: 3641583 (1972-02-01), Cless et al.
patent: 3644931 (1972-02-01), Stringer et al.
patent: 3781904 (1973-12-01), Firnig et al.
patent: 3821747 (1974-06-01), Mason
Bell & Howell Company
Miller Jr. George H.
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