Edward E. Hart Jr.

Person

Springfield, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Laser receiver with out-of-plumb indication and compensation
- Patent number 6,292,258
- Issue date Sep 18, 2001
- Spectra Precision, Inc.
- Richard D'Alessandro
- G01 - MEASURING TESTING
Information Patent Grant
Shock and vibration sensor
- Patent number 6,034,613
- Issue date Mar 7, 2000
- Spectra Precision, Inc.
- Edward E. Hart
- G01 - MEASURING TESTING
Information Patent Grant
Light beam deflecting apparatus including a fluid
- Patent number 5,166,831
- Issue date Nov 24, 1992
- Spectra-Physics Laserplane, Inc.
- Edward E. Hart
- G02 - OPTICS
Information Patent Grant
Laser beam apparatus for providing multiple reference beams
- Patent number 5,144,486
- Issue date Sep 1, 1992
- Spectra-Physics Laserplane, Inc.
- Edward E. Hart
- G02 - OPTICS
Information Patent Grant
Angular positioning and calibration of projected reference light pl...
- Patent number 5,033,847
- Issue date Jul 23, 1991
- Spectra-Physics, Inc.
- David L. Hamblin
- G01 - MEASURING TESTING
Information Patent Grant
Pendulous compensator for light beam projector
- Patent number 5,033,848
- Issue date Jul 23, 1991
- Spectra-Physics, Inc.
- Edward E. Hart
- G02 - OPTICS
Information Patent Grant
Low friction ferrofluid bearing arrangement
- Patent number 4,717,266
- Issue date Jan 5, 1988
- Spectra-Physics, Inc.
- Edward E. Hart
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Magnetic speed reduction device
- Patent number 4,684,836
- Issue date Aug 4, 1987
- Spectra-Physics, Inc.
- Edward E. Hart
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Laser beam projection device and arrangement for mounting a laser p...
- Patent number 4,654,856
- Issue date Mar 31, 1987
- Spectra-Physics, Inc.
- Theodore J. Markley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Grade setting and calibration arrangement for laser beam projection...
- Patent number 4,629,321
- Issue date Dec 16, 1986
- Spectra-Physics, Inc.
- Edward E. Hart
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Versatile transmitter and receiver for position measurement
- Publication number 20010038447
- Publication date Nov 8, 2001
- Philip L. Detweiler
- G01 - MEASURING TESTING

Edward E. Hart Jr.

Person

Patents Grantslast 30 patents

Laser receiver with out-of-plumb indication and compensation

Shock and vibration sensor

Light beam deflecting apparatus including a fluid

Laser beam apparatus for providing multiple reference beams

Angular positioning and calibration of projected reference light pl...

Pendulous compensator for light beam projector

Low friction ferrofluid bearing arrangement

Magnetic speed reduction device

Laser beam projection device and arrangement for mounting a laser p...

Grade setting and calibration arrangement for laser beam projection...

Patents Applicationslast 30 patents

Versatile transmitter and receiver for position measurement