Handling: hand and hoist-line implements – Grapple
Reexamination Certificate
2006-02-21
2006-02-21
Kramer, Dean J. (Department: 3652)
Handling: hand and hoist-line implements
Grapple
C294S082230, C279S110000, C901S049000
Reexamination Certificate
active
07000966
ABSTRACT:
A pick-and-place tool releasably retains a part during a pick-and-place operation by an automated device. The pick-and-place tool includes a front structure having a first bore disposed therein for receiving a shaft extending from the part. A plurality of locking mechanisms is disposed within the front structure. The plurality of locking mechanisms are evenly spaced around the inner surface and are in fluid communication with a common fluid source. Each locking mechanism in the plurality of locking mechanisms includes a bearing disposed proximate an aperture in the inner surface, and a piston in mechanical communication with the bearing. Movement of the piston in response to a fluid pressure at the common fluid source forces the bearing to extend through the aperture and retain the shaft within the first bore. In one aspect, a resilient member is disposed between the front structure and a tool holder coupled to the automated device. The resilient member absorbs at least a portion of a force applied to the front structure.
REFERENCES:
patent: 650686 (1900-05-01), Leask
patent: 4469362 (1984-09-01), Schaarschmidt et al.
patent: 4514616 (1985-04-01), Warner
patent: 4815780 (1989-03-01), Obrist
patent: 4855558 (1989-08-01), Ramsbro
patent: 6160236 (2000-12-01), Nordquist
patent: 6186567 (2001-02-01), Blick
Bojda Phillip A.
Jones Gary Lee
Kramarczyk Mark A.
Lin Yhu-Tin
General Motors Corporation
Kramer Dean J.
Marra Kathryn A.
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