Hydraulic involute cam actuator

Details Hydraulic involute cam actuator Hydraulic involute cam actuator

2009-02-27

2011-11-01

Addie, Raymond (Department: 3671)

Machine element or mechanism

Control lever and linkage systems

Multiple controlling elements for single controlled element

C623S059000, C901S028000

Reexamination Certificate

active

08047094

ABSTRACT:
Mechanical joints are provided in which the angle between a first coupled member and a second coupled member may be varied by mechanical actuators. In some embodiments the angle may be varied around a pivot axis in one plane and in some embodiments the angle may be varied around two pivot axes in two orthogonal planes. The joints typically utilize a cam assembly having two lobes with an involute surface. Actuators are configured to push against the lobes to vary the rotation angle between the first and second coupled member.

REFERENCES:
patent: 2010377 (1935-08-01), Sassen
patent: 4628765 (1986-12-01), Dien et al.
patent: 4966067 (1990-10-01), Ames et al.
patent: 5107719 (1992-04-01), Kota
patent: 6658962 (2003-12-01), Rosheim
patent: 1 217 134 (1970-12-01), None
patent: 1 374 997 (1974-11-01), None

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