Communications: electrical – Audible indication – Ultrasonic pest control
Patent
1975-03-07
1977-01-25
Curtis, Marshall M.
Communications: electrical
Audible indication
Ultrasonic pest control
320 2, 340336, G09F 932
Patent
active
040054128
ABSTRACT:
Apparatus for transferring information between an electronic display device and means for transmitting and receiving information and for supplying operating current to the electronic display device. The operating current is provided by a battery and the apparatus includes an operating circuit having an energizing means which charges the battery when the apparatus is not in use. The energizing means includes first inductive means located inside the fuel dispensing nozzle and second inductive means for coupling electromagnetically with the first inductive means located outside the nozzle. Conductors are arranged between the display device and the information transmitting and receiving means to provide safe transfer of information between them.
REFERENCES:
patent: 3139753 (1964-07-01), Brudner
patent: 3353026 (1967-11-01), Israely
patent: 3580421 (1971-05-01), Bickford
patent: 3641336 (1972-02-01), Boin
patent: 3840795 (1974-10-01), Roszyk et al.
Aktiebolaget Ljungmans Verkstader
Curtis Marshall M.
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