Communications – electrical: acoustic wave systems and devices – Transmitter systems – Animal control
Patent
1981-02-23
1982-12-28
Blum, Theodore M.
Communications, electrical: acoustic wave systems and devices
Transmitter systems
Animal control
43124, 116 22A, H04B 102
Patent
active
043665624
ABSTRACT:
A ground inserted rod supports at its upper end a base having a cup-shaped member in which is loosely received a motor housing. During motor operation an eccentric blade imparts random movement to the motor housing to cause same to impact the cup-shaped member to impart vibratory movement to the ground inserted rod for wave generation. A battery holder provides a self-contained power source such as a low voltage dry cell battery.
REFERENCES:
patent: 3517635 (1970-06-01), Kuhl et al.
Blum Theodore M.
Givnan, Jr. James D.
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