James L Denney

US Patent:

6643004, Nov 4, 2003

Filed:

Nov 22, 2002

Appl. No.:

10/302081

Inventors:

Philip L. Detweiler - Tipp City OH
James E. Denney - Springfield OH
Nathan A. Corey - Fairborn OH
Jonathan A. Jackson - Centerville OH
Frank B. Douglas - Tipp City OH

Assignee:

Trimble Navigation Limited - Sunnyvale CA

International Classification:

G01B 1126

US Classification:

3561414, 356 401, 356 408, 3561411, 3561522

Abstract:

Field-deployable spatial positioning or measurement systems are provided for improved versatility, reliability and performance. The spatial positioning or measurement systems use rotating laser fans or beams for positioning and measuring and include a system integrated field-deployable length standard that uses a reelable tape with positional indents. The systems further include the use of labyrinth seals at interface volumes between rotating laser heads and transmitter assemblies to prevent ingress of contaminants and allow for elimination of the use of rotary seals. Further, new dynamic leveling techniques are provided to plumb positional laser transmitter systems. Still further, strobe beam configurations are provided for improved near/far performance and a vertical mode sensing scheme that allows switching to measuring tall structures when needed.

US Patent:

6870608, Mar 22, 2005

Filed:

Jul 15, 2003

Appl. No.:

10/620120

Inventors:

Philip L. Detweiler - Tipp City OH, US
James E. Denney - Springfield OH, US
Jonathon A. Jackson - Centerville OH, US
Frank B. Douglas - Tipp City OH, US

Assignee:

Trimble Navigation Limited - Sunnyvale CA

International Classification:

G01B011/26
G01C001/00

US Classification:

3561411, 356 408, 3561414

Abstract:

Field-deployable spatial positioning or measurement systems are provided for improved versatility, reliability and performance. The spatial positioning or measurement systems use rotating laser fans or beams for positioning and measuring and include a system integrated field-deployable length standard that uses a reelable tape with positional indents. The systems further include the use of labyrinth seals at interface volumes between rotating laser heads and transmitter assemblies to prevent ingress of contaminants and allow for elimination of the use of rotary seals. Further, new dynamic leveling techniques are provided to plumb positional laser transmitter systems. Still further, strobe beam configurations are provided for improved near/far performance and a vertical mode sensing scheme that allows switching to measuring tall structures when needed.

US Patent:

7064819, Jun 20, 2006

Filed:

Jan 25, 2005

Appl. No.:

11/042379

Inventors:

Philip L. Detweiler - Tipp City OH, US
James E. Denney - Springfield OH, US
Jonathan A. Jackson - Centerville OH, US
Frank B. Douglas - Tipp City OH, US

Assignee:

Trimble Navigation Limited - Sunnyvale CA

International Classification:

G01B 11/26
G01C 1/00

US Classification:

3561411, 356 408, 3561414

Abstract:

Field-deployable spatial positioning or measurement systems are provided for improved versatility, reliability and performance. The spatial positioning or measurement systems use rotating laser fans or beams for positioning and measuring and include a system integrated field-deployable length standard that uses a reelable tape with positional indents. The systems further include the use of labyrinth seals at interface volumes between rotating laser heads and transmitter assemblies to prevent ingress of contaminants and allow for elimination of the use of rotary seals. Further, new dynamic leveling techniques are provided to plumb positional laser transmitter systems. Still further, strobe beam configurations are provided for improved near/far performance and a vertical mode sensing scheme that allows switching to measuring tall structures when needed.

US Patent:

20010038447, Nov 8, 2001

Filed:

Mar 9, 2001

Appl. No.:

09/803664

Inventors:

Philip Detweiler - Tipp City OH, US
James Denney - Springfield OH, US
David Sayer - Waynesville OH, US
Nathan Corey - Fairborn OH, US
Jonatha Jackson - Centerville OH, US
Frank Douglas - Tipp City OH, US
Horst Pfiffi - Kaiserslautern, DE
Edward Hart - Springfield OH, US
Frank Leyshon - Cambridge OH, US

International Classification:

G01C001/00
G01B011/26

US Classification:

356/141400

Abstract:

Improved versatility, reliability and performance for field-deployable spatial positioning or measurement systems that use rotating laser fans or beams. Teachings include [1] A system integrated field-deployable length standard uses a reelable tape with positional indents; [2] the use of labyrinth seals at interface volumes between rotating laser heads and transmitter assemblies to prevent ingress of contaminants and allow for elimination of the use of rotary seals; [3] new dynamic leveling techniques to plumb positional laser transmitter systems; [4] strobe beam configurations for improved near/far performance; and [5] a vertical mode sensing scheme that allows switching to measuring tall structures when needed.