Actuating mechanism for fluid displacement and pressurizing devi

Details Actuating mechanism for fluid displacement and pressurizing devi Actuating mechanism for fluid displacement and pressurizing devi

1995-07-20

1998-02-03

Marmor, Charles A.

Machine element or mechanism

Gearing

Directly cooperating gears

74499, 74567, 604100, F16H 118

Patent

active

057132429

ABSTRACT:
Actuating mechanism for rapidly and selectively moving a threaded screw and nut member combination into or out of threaded engagement, particularly for use of the screw as a control fluid plunger to pressurize angioplasty balloon catheters, or the like, which mechanism includes a housing and a threaded screw slideably displaceable through the housing, and a nut member having partial threads engageable and disengageable with the threaded screw structure. A carriage structure is secured to the nut structure and arranged to enable reversibly translating motion together with the nut member relative to the screw structure to enable the selectively threaded engageability of the partially threaded nut member with the screw structure.

REFERENCES:
patent: 4370982 (1983-02-01), Reilly
patent: 4723938 (1988-02-01), Goodin et al.
patent: 4838864 (1989-06-01), Peterson
patent: 5168757 (1992-12-01), Rabenau

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