Machine element or mechanism – Control lever and linkage systems – Multiple controlling elements for single controlled element
Patent
1995-03-10
1997-04-08
Herrmann, Allan D.
Machine element or mechanism
Control lever and linkage systems
Multiple controlling elements for single controlled element
2481832, 2481834, 248661, 348143, 348373, 901 23, 901 29, B25J 1702, F41G 140, H02K 500
Patent
active
056177623
ABSTRACT:
A positioning device (10, 10') including a mounting base (16), a yaw assembly (18) for imparting yaw movement relative to the mounting base (16) and a pitch assembly (22) for imparting pitch movement relative to the mounting base (16) is disclosed. The yaw assembly (18) comprises a yaw table (20) rotatably mounted to the mounting base (16) and the pitch assembly (22) comprises a pitch wheel (24) rotatably mounted to the yaw table (20). The positioning device (10, 10') includes a pitch motor (28) located on the yaw table (20) for rotating the pitch wheel (24) relative to the yaw table (20) and a yaw motor (38) located on the yaw table (20) for rotating the yaw table (20) relative to the mounting base (16).
REFERENCES:
patent: 1943360 (1934-01-01), Arnold
patent: 4233634 (1980-11-01), Adams
patent: 4728839 (1988-03-01), Coughlan et al.
patent: 4766775 (1988-08-01), Hodge
patent: 5028997 (1991-07-01), Elberbaum
patent: 5314425 (1994-05-01), Shpigel
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