John T Kramer

US Patent:

20030051331, Mar 20, 2003

Filed:

Oct 10, 2002

Appl. No.:

10/267598

Inventors:

Edward Amatucci - Mount Airy MD, US
Frederic Scire - Frederick MD, US
Lowell Howard - Gaithersburg MD, US
Nicholas Dagalakis - Potomac MD, US
Jason Marcinkoski - College Park MD, US
John Kramer - Germantown MD, US

Assignee:

The 14th and Constitution, National Institute of Standards and Technology - Washington DC

International Classification:

B23Q003/00

US Classification:

029/466000

Abstract:

A positioning device and method for moving a positioning stage is provided. The device includes a movable stage, at least one actuator, and the same number of sensors as there are actuators. Each actuator is placed such that it applies a force along a line parallel to the line of movement of the positioning stage. Each actuator can be operated to generate an input force for moving the movable stage. A sensor is placed along the force line of each included actuator. Each sensor detects movement of the positioning stage. A first force is applied to a first location on the positioning stage. A second force is applied to a second location on the positioning stage. Application of the first and the second forces moves the positioning stage. The first location and the second location are symmetrically located about an axis of the positioning stage.

US Patent:

20140151460, Jun 5, 2014

Filed:

Dec 2, 2013

Appl. No.:

14/093998

Inventors:

- Schenectady NY, US
John Kramer - Shelton CT, US
Bret Dwayne Worden - Erie PA, US
Ajith Kumar - Erie PA, US

International Classification:

B05B 12/02

US Classification:

239 69, 239302, 239135

Abstract:

A system for use with a vehicle includes at least one nozzle and an fluid reservoir capable of holding a volume of pressurized gas or other fluid. The air reservoir is in fluid communication with the at least one nozzle and the at least one nozzle is selectively operable to direct the pressurized gas or other fluid at a surface of an optical inspection sensor assembly to remove contaminants from the sensor assembly.