Registers – Platform operated – Platform actuated traffic counters
Patent
1977-03-09
1978-06-27
Thesz, Joseph M.
Registers
Platform operated
Platform actuated traffic counters
235 92FP, 235 92R, 235 94A, 222 76, G06M 312
Patent
active
040977242
ABSTRACT:
An apparatus and method for vending liquid fuel of the type wherein an electrically driven pump is controllably energized in response to a counter adding a credit unit as electrically signalled by a money acceptor. The counter subtracts credit units in response to a primary dispensing switch which is operatively responsive to the dispensing of fuel. In accordance with the present invention, a fail-safe circuit is provided which is electrically connected with the counter, acceptor and primary switch and which is operable for selectively disabling the pump from delivering fuel. A secondary dispensing switch is provided which is operatively responsive to dispensing of fuel and which cooperates with the fail-safe circuit in monitoring the normal sequence of vending steps and responding to abnormality in such normal sequence of steps by precluding delivery of pumped fuel.
REFERENCES:
patent: 3662157 (1972-05-01), Somers
patent: 3852577 (1974-12-01), Moon et al.
patent: 3907165 (1975-09-01), Carbone
patent: 3999685 (1976-12-01), Greenwood
Quick Fill, Inc.
Thesz Joseph M.
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