Material or article handling – Article manipulator moves analogous with human hand – finger,... – Having means to transmit motion through an imperforate barrier
Patent
1991-07-23
1992-08-18
Spar, Robert J.
Material or article handling
Article manipulator moves analogous with human hand, finger,...
Having means to transmit motion through an imperforate barrier
74110, 294 88, 294116, 403DIG1, 414753, 464 29, B25J 108
Patent
active
051393832
ABSTRACT:
A device for positioning objects within a sealed vacuum chamber (112) comprises a stationay housing (114), which is sealingly attached to the vacuum chamber (112). Located within the housing (114) is a tubular body (158) capable of rotating and translating within the stationary housing (114) through the interaction of an outer magnet (116), which slides and rotates on the surface of the stationary housing, and an inner magnet (118), which is attached to the tubular body (158). A shaft (198) is located inside the tubular body, but cannot be shifted axially with respect to this body. The front end of shaft (198) extends into the vacuum chamber (112) and may carry a specimen or any other object to be treated or tested in the vacuum chamber. The shaft (198) is driven from an external drive mechanism (124). Rotation of the shaft can be converted into opening and closing movements of the jaws (218 and 220). Thus, the object can be clamped by the jaws, rotated, and linearly moved inside a sealed chamber under the control of external drive means.
REFERENCES:
patent: 4683763 (1987-08-01), Balter
patent: 4768911 (1988-09-01), Balter
patent: 4797053 (1989-01-01), Balter
patent: 4850779 (1989-07-01), Cashell et al.
patent: 4885947 (1989-12-01), Balter et al.
patent: 4998859 (1991-03-01), Oshima et al.
Huynh Thu
Polyak Alexander
Huntington Mechanical Laboratories, Inc.
Pressman David
Spar Robert J.
Underwood Donald W.
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