Hydraulic motor with telescopic propulsion members retained...

Details Hydraulic motor with telescopic propulsion members retained... Hydraulic motor with telescopic propulsion members retained...

2007-09-11

2007-09-11

Lopez, F. Daniel (Department: 3745)

Expansible chamber devices

Relatively movable working members

Interconnected with common rotatable shaft

C092S119000, C092S13000R

Reexamination Certificate

active

11150922

ABSTRACT:
Hydraulic motor with propulsion members (10) positioned between a cam (3) associated with a shaft (2) and a reaction element (1b), said propulsion members (10) consisting of two elements (11,12), i.e. an internal element (12) and external element (11), telescopically slidable with respect to each other in a radial direction and respectively provided with annular bearing edges (11a,12a) kept pressed against corresponding contact surfaces (3a, 1a) of said cam (3) and said reaction element (1b) via respective resilient means (16), the resilient means associated with the external element (11) of the propulsion member being arranged outside the said element, characterized in that the resilient means (16) associated with the internal element (12) are arranged inside the propulsion member (10) and positioned in the radial direction between said internal element (12) and associated means (52,55) for mechanically retaining them.

REFERENCES:
patent: 3577830 (1971-05-01), Ortelli
patent: 5967018 (1999-10-01), Breveglieri
patent: 4406803 (1995-09-01), None
patent: 0266806 (1988-05-01), None
patent: 0851119 (1998-07-01), None

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