Other

Bucyrus Erie Company

Lanz Medical Products Corporation

Maurice I Zeldman

Gerald E McGinnis

Objects contacted by mechanical fingers cause shunts that are touched at a position to contact resistance strips. Sensing resistance remaining between the shunt contact and one end of the resistance strip indicates position of contact along the finger. Shapes and alignments of objects are sensed by comparing positional information along several fingers.

Method and apparatus for sensing position of contact along an elongated

A front end mechanism for an excavating machine is shown having a boom pivotally mounted at its foot and a dipper stick pivoted to the forward end of the boom that carries a dipper at its outer end. The mechanism includes a rotatable hoist member coaxial with the pivoted boom foot that is in the form of either a gear or a lever arm, a hoist drive that alternately rotates the hoist member for effecting hoist and lower motions of the machine or that holds the hoist member stationary, a moment arm forming a part of the inner end of the dipper stick which is in the form of either a gear or a linear portion of the dipper stick, a coupling member interposed between the hoist member and the dipper stick moment arm which is in the form of either an elongate strut tying the hoist member and moment arm together or an idler gear when both the hoist member and the moment arm are in the form of gears, and a crowd drive that can alternately pivot the boom with respect to the hoist member or hold these two elements fixed with respect to one another.

Excavator front end

A tracheal tube having straight inner and outer end portions integrally connected by a curved central portion contains a cannula that can be removed from one end. The cannula is a normally straight one-piece flexible tube of plastic circumferentially corrugated from approximately its inner end outwardly to a point at least as far as the outer end of the curved central portion of the tracheal tube. The corrugated wall of the cannula stiffens the part of the cannula that extends through the curved central portion of the tracheal tube to prevent it from collapsing when the cannula is inserted in the tracheal tube.

Growing community of inventors

Pittsburgh, PA, United States of America

Maurice I Zeldman