Method and system for dispensing precise amount of fluid with au

Details Method and system for dispensing precise amount of fluid with au Method and system for dispensing precise amount of fluid with au

1991-02-22

1993-09-28

Smith, Jerry

Boots, shoes, and leggings

364465, 222 14, G06F 1546, B67D 530

Patent

active

052491293

ABSTRACT:
A method and an automatic control system for dispensing a desired precise amount of a fluid from a reservoir by automatic control of a pump. The fluid is discharged through an operator actuable dispensing mechanism which is operated by a user. More particularly, but not exclusively, the system is associated with a gas pump apparatus. The system detects a slow-down or a stoppage in the discharge of the fluid by sensing a signal at the output of a counter which is provided with the gas pump. These signals actuate the controls circuit to sense parameters of the counter whereby to initiate a slow rate of discharge of the fluid from the pump during a predetermined time period before a preset integral amount and after the slow-down or after the reactivation of the actuable dispensing mechanism if a stoppage of the mechanism was detected. After the integral amount is reached, the pump is shut off during a shut off period of time after which shut off period of time, the pump is re-activatable by actuation of the actuable dispensing mechanism. Accordingly, this system greatly facilitates the dispensing of a precise volumeric or cost amount of a fluid, such as gasoline.

REFERENCES:
patent: 3935435 (1976-01-01), Greenwood
patent: 4107777 (1978-08-01), Pearson et al.
patent: 4247899 (1981-01-01), Schiller et al.
patent: 4572405 (1986-02-01), Miura
patent: 4595122 (1986-06-01), Yoshida et al.

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