Drive system and fluid dispenser unit utilizing same

Details Drive system and fluid dispenser unit utilizing same Drive system and fluid dispenser unit utilizing same

1979-09-17

1981-06-30

Skaggs, H. Grant

Dispensing

Automatic control

Of dispensers with fluid pressure discharge assistance

74411, 239274, 222 63, B67D 508

Patent

active

042758211

ABSTRACT:
A mechanical drive system for providing a maximum limit on the magnitude of unidirectional output motion in response to reciprocating input motion, including: an output member moveable in a first direction; a unidirectional drive for driving said output member in said first direction; limiter chain for limiting the motion of the unidirectional drive in the first direction to define a limit position; and an override drive mechanism responsive to the reciprocating input motion occurring in one direction to move the unidirectional drive to a rest position and to the reciprocating input motion occurring in the opposite direction to move the unidirectional drive in the first direction from the rest position no further than the limit position, irrespective of the extent of the reciprocating input motion to the override drive mechanism; and a periodically actuated fluid dispenser unit utilizing such a drive mechanism.

REFERENCES:
patent: 1760902 (1930-06-01), Grattan
patent: 3589563 (1971-06-01), Carragan
patent: 3608784 (1971-09-01), Brown
patent: 3656509 (1972-04-01), Yasu
patent: 4030638 (1977-06-01), Lanno

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