Housing having grooves therein for mounting a piezoelectric ladd

Details Housing having grooves therein for mounting a piezoelectric ladd Housing having grooves therein for mounting a piezoelectric ladd

1985-04-16

1987-04-07

LaRoche, Eugene R.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

333189, 174 52R, H03H 910

Patent

active

046563857

ABSTRACT:
A filter of the ladder type has an elongated hollow casing with an aperture at one axial end face and at least two grooves on the inner surface at at least two different positions around the inner periphery thereof and which extend parallel to the longitudinal axis of the body. An elongated terminal strip in the bottom of one of the grooves extends along substantially the entire length of the one groove and extends out of the casing. A plurality of piezoelectric devices and a plurality of terminal plates stacked in the casing in the direction of the longitudinal axis and in an order for forming a ladder type filter. Some of the terminal plates have terminal tips extending into the one groove in firm electrical contact with the terminal strip. The terminal tips on some of the remainder the terminal plates extend into another groove and the terminal tips some of these have longitudinally extending terminal portions extending along the groove and with which the terminal tips on some of the remainder of the terminal plates are in electric contact for forming the ladder type filter. Terminal tips on the two end terminal plates extend out of the casing.

REFERENCES:
patent: 2293485 (1942-08-01), Baldwin
patent: 2927285 (1960-03-01), Curran et al.
patent: 4323865 (1982-04-01), Tanaka et al.

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