Wave transmission lines and networks – Automatically controlled systems – With control of equalizer and/or delay network
Patent
1975-08-28
1977-02-08
Smith, Alfred E.
Wave transmission lines and networks
Automatically controlled systems
With control of equalizer and/or delay network
310 82, 310 86, 333 72, H03H 904, H03H 926
Patent
active
040074323
ABSTRACT:
An electro-mechanical filter is configured from a single thin metal sheet and comprises a base portion, at least four vibratory tines extending outwardly from the base portion, and a plurality of supporting members also extending outwardly from the base portion. The tines and supporting members are arranged circumferentially around the base portion in alternate relationship and extend from the base portion in parallel with each other. The tines may extend in either the same or the opposite direction as the supporting members. A piezo-electric element is coupled to each tine and the elements are differentially connected together to form a filter.
REFERENCES:
patent: 3106124 (1963-10-01), Asten
patent: 3659230 (1972-04-01), Tanaka et al.
Adams Bruce L.
Burns Robert E.
Kabushiki Kaisha Daini Seikosha
Lobato Emmanuel J.
Nussbaum Marvin
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