James D Penn

US Patent:

20120280592, Nov 8, 2012

Filed:

May 4, 2012

Appl. No.:

13/464943

Inventors:

James Douglass Penn - Cambridge MA, US

International Classification:

H02N 11/00

US Classification:

310300

Abstract:

Systems and methods for creating a multiple degree of freedom (DOF) actuated device having a single transducer source, wherein each DOF is individually actuated by a particular amplified response frequency and wherein simultaneous multiple DOF actuation is possible through superimposing multiple frequencies. Further included are several embodiments rectifying DOF(s) into a continuous output motion.

US Patent:

20150343632, Dec 3, 2015

Filed:

Jun 1, 2015

Appl. No.:

14/727851

Inventors:

James Douglass Penn - Cambridge MA, US

International Classification:

B25J 9/10
B25J 9/02

Abstract:

A system and method for a planar positioning system for an output member, the system having a pair of x-coordinate linear carriages and a pair of y-coordinate linear carriages. The system has a guide mechanism for the pair of x-coordinate linear carriages and the pair of y-coordinate linear carriages. The system has a plurality of movement and constraining cables extending from the pair of x-coordinate linear carriages and the pair of y-coordinate linear carriages to the output member for driving the output, wherein the pair of x-coordinate linear carriages and the output member move in sync in the x-direction and the pair of y-coordinate linear carriages and the output member move in sync in the y-direction. A restraint mechanism restrains the output member in an additional degree of freedom besides the x- and y-directions. The restraint can be a cable uptake and release device.