Spring-operated liquid-dispensing device

Details Spring-operated liquid-dispensing device Spring-operated liquid-dispensing device

1982-05-21

1984-05-08

Pellegrino, Stephen C.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604214, 222 95, A61M 700

Patent

active

044472323

ABSTRACT:
A device, noteworthy by its compact construction, portability and use of a constant torque spring to dispense liquid under a uniform force, in which binding due to possible rotative movement in the slide that is powered by the torque spring is obviated, so that the slide tracks properly during liquid-dispensing service of the device, This is in contrast to torque spring-operated prior art devices in which special precautions were required to neutralize the turning movement unavoidably resulting when the torque spring assumed its characteristic helical coils during its functioning.

REFERENCES:
patent: 3084722 (1963-04-01), Klingerman
patent: 3565292 (1971-02-01), Jinotti
patent: 4265241 (1981-05-01), Portner et al.
patent: 4280637 (1981-07-01), Runciman

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