Prehensor device and improvements of same

Details Prehensor device and improvements of same Prehensor device and improvements of same

2005-01-14

2008-03-11

Kramer, Dean J (Department: 3652)

Handling: hand and hoist-line implements

Grapple

Pivoted jaws

C294S111000, C623S064000

Reexamination Certificate

active

07341295

ABSTRACT:
A prehensor is provided comprising embodiments of a variable mechanical advantage mechanism, the prehensor including a first mechanical advantage for sizing an object, and a second mechanical advantage for gripping the object. Embodiments of the variable mechanical advantage mechanism include a brake assembly and multiple embodiments of a brakeless assembly. Additionally, multiple embodiments of a selectable voluntary opening/voluntary closing mechanism are provided, whereby a single prehensor can be switched back and forth between a voluntary closing mode and a voluntary opening mode. Additional embodiments include a safety clutch, an improved prehensor tendon, replaceable digits, and self decontaminating digits.

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