Dispensing – With lock or fastening seal – Plural
Patent
1980-02-13
1982-08-10
Spar, Robert J.
Dispensing
With lock or fastening seal
Plural
222384, B67D 532
Patent
active
043434177
ABSTRACT:
In a dispensing pump including a reciprocable plunger having a locking finger on a pump body member and the cam on a control member rotatable relative thereto for immobilizing the plunger as an upper portion of the finger is deflected into the path of reciprocation of the plunger, another cam is provided on the control member for positively deflecting such upper portion out of such path of reciprocation so as to avoid complete reliance on the locking finger retracting from such path in a normal unstressed condition thereof.
Alternatively, a stop shoulder on the plunger on which the free end of the locking finger bears to effect plunger mobilization may be beveled and the free end accordingly sloped so as to positively retract the locking finger out of the path of the stop shoulder upon plunger reciprocation.
REFERENCES:
patent: 3426948 (1969-02-01), Stirling
patent: 3797705 (1974-03-01), Cooprider
patent: 3827605 (1974-08-01), Knickerbocker
patent: 3827606 (1974-08-01), Knickerbocker
patent: 4050613 (1977-09-01), Corsette
patent: 4083476 (1978-04-01), Schwartz et al.
Handren Frederick R.
Spar Robert J.
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